Beam self-weight deformation correction structure

Abstract

The utility model discloses a cross beam self-weight deformation correcting structure which comprises a beam body, a lower traction position is arranged in the middle of the bottom face of the beam body, an upper traction position is arranged at the upper corner of the beam body, and the upper traction position is connected with the lower traction position through an adjusting pull rod. The beam is reasonable in structural design, the upper traction position and the lower traction position are ingeniously and correspondingly arranged on the beam body, then traction and stabilization are conducted through the adjusting pull rod, and the overall structural stability and rigidity of the beam body can be effectively enhanced. When the middle position of the beam body possibly deforms due to gravity and the machining precision is influenced, the middle position of the beam body can bear upward tension by adjusting the pull rod during assembly, so that the gravity is counteracted, the generated deformation is avoided, the beam body is corrected, and the machining precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to a beam deadweight deformation correction structure. Background Art

[0002] The beam of the existing gantry type machining center is one of the main parts of the machining center. As the basic part of the Y-axis of the machine tool, the beam not only bears the weight of the saddle and the ram components, but also needs to bear the cutting force during the machining of the machine tool. Therefore, the rigidity and strength of the beam directly affect the overall machining performance and accuracy of the machine tool. Generally speaking, the larger the span of the beam of the gantry CNC machine tool, the greater the deformation caused by its own weight and the movement of the saddle on it. At this time, if the beam structure is not rigid enough, it will cause the beam of the gantry CNC machine tool to vibrate during machining, resulting in poor machining accuracy.

[0003] The utility model with publication number "CN219665711U" and name "A gantry-type five-axis machining center beam" discloses a gantry-type five-axis machining center beam, which improves the rigidity of the beam by arranging square ribs and oblique ribs inside the beam, thereby reducing the weight of the beam and improving the stress condition. Although it improves the rigidity and stability of the beam to a certain extent, the overall structure is a fixed structure. Once the beam is deformed, it cannot be corrected, and it is difficult to continue to maintain the processing accuracy of the equipment. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide a beam self-weight deformation correction structure with reasonable structural design and capable of correcting the deformation.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A beam self-weight deformation correction structure includes a beam body, wherein two lower pulling positions are provided at the middle of the bottom surface of the beam body, and upper pulling positions are symmetrically provided at the upper corners of both sides of the beam body, and the two upper pulling positions are respectively connected to the lower pulling positions near one side thereof through an adjusting rod. By adjusting the rod to pull and stabilize the middle position of the beam body, the rigidity and stability of the beam body are effectively enhanced, and deformation is reduced.

[0007] As a preferred solution of the utility model, the middle position of the bottom surface of the beam body is inwardly concave to form the lower pulling position. The upper corners of both sides of the beam body are provided with inclined surfaces to form the upper pulling position. The upper pulling position is parallel to the lower pulling position, ensuring the uniform distribution of the pulling force and effectively enhancing the stability of the middle position of the beam body in the vertical direction.

[0008] As a preferred solution of the utility model, the upper pulling position and the lower pulling position are both provided with through holes for the adjustment rod to pass through, and the end of the adjustment rod passes through the through hole and is provided with a threaded portion, and a nut that can be pressed against the upper pulling position or the lower pulling position is screwed on the threaded portion, which is simple and convenient to install.

[0009] As a preferred solution of the utility model, a gasket is provided between the nut and the upper pulling position or the lower pulling position. The gasket can prevent the nut from directly pressing on the surface of the beam, avoiding damage to the surface of the beam due to excessive pressure, and also increases the contact area, dispersing the pressure of the nut on the beam, and improving the stability and durability of the connection.

[0010] As a preferred solution of the utility model, the back side edge of the beam body is provided with reinforcing side ribs, and the back center of the beam body is provided with reinforcing middle ribs. The reinforcing side ribs and the reinforcing middle ribs can improve the rigidity and stability of the beam body and reduce vibration and deformation during processing.

[0011] As a preferred solution of the utility model, the beam body is provided with a plurality of reinforcing ribs extending along the long side direction thereof, which effectively increases the stability and bearing capacity of the overall structure and improves the durability and reliability of the machining center.

[0012] The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, and the upper and lower pulling positions are cleverly provided at the upper corners and the middle of the bottom surface of the beam body, and then the middle position of the beam body is pulled and stabilized by two adjusting rods, which can effectively enhance the overall structural stability and rigidity of the beam body. When the middle part of the beam body may be deformed due to gravity and affect the processing accuracy, the middle position of the beam body can be subjected to upward pulling force by adjusting the rod during assembly, thereby offsetting the deformation caused by gravity, and then correcting the beam body to ensure the processing accuracy.

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] See also Figure 1 and Figure 2The embodiment provides a beam self-weight deformation correction structure, which includes a beam body 1, wherein two lower pulling positions 2 are provided at the middle of the bottom surface of the beam body 1, and upper pulling positions 3 are symmetrically provided at the upper corners on both sides of the beam body 1. Specifically, the middle of the bottom surface of the beam body 1 is inwardly concave to form the lower pulling position 2. The upper corners on both sides of the beam body 1 are provided with inclined surfaces to form the upper pulling position 3. The upper pulling position 3 is parallel to the lower pulling position 2, ensuring the uniform distribution of the pulling force and effectively enhancing the stability of the middle position of the beam body 1 in the vertical direction.

[0017] The two upper pulling positions 3 are connected to the lower pulling position 2 near one side thereof through an adjusting rod 4. Specifically, the upper pulling position 3 and the lower pulling position 2 are provided with through holes for the adjusting rod 4 to pass through, and the end of the adjusting rod 4 passes through the through hole and is provided with a threaded portion, and a nut 5 that can press against the upper pulling position 3 or the lower pulling position 2 is screwed on the threaded portion, which is simple and convenient to install. Preferably, a gasket 6 is provided between the nut 5 and the upper pulling position 3 or the lower pulling position 2. The gasket 6 can prevent the nut 5 from directly pressing on the surface of the beam body 1, avoiding damage to the surface of the beam body 1 caused by excessive pressure, and at the same time increases the contact area, disperses the pressure of the nut 5 on the beam body 1, and improves the stability and durability of the connection.

[0018] Reinforced side ribs 7 are provided on the side edges of the back of the beam body 1, and reinforced middle ribs 8 are provided at the center of the back of the beam body 1. The reinforced side ribs 7 and the reinforced middle ribs 8 can improve the rigidity and stability of the beam body 1, and reduce vibration and deformation during processing. The beam body 1 is provided with a plurality of reinforcing ribs extending along its long side direction. The stability and bearing capacity of the overall structure are effectively increased, and the durability and reliability of the machining center are improved. On the basis that the beam body 1 has sufficient structural strength, the interior of the beam body 1 is hollowed out to form a hollow structure. The hollow structure can significantly reduce the overall weight of the beam body 1, thereby reducing the inertia of movement and improving the response speed and processing efficiency.

[0019] When working, see Figure 1 , a force F is applied to the middle of the beam 1 through two adjusting rods 4 拉 The pulling and stabilization can effectively enhance the overall structural stability and rigidity of the beam body 1. 重力 When downward deformation may affect the processing accuracy, the upward pulling force F can be generated by screwing the nuts 5 on both sides during assembly. 总 To pull the middle part of the beam 1, thereby offsetting the gravity and avoiding the deformation, thus achieving the purpose of correction.

[0020] According to the disclosure and teaching of the above specification, technicians in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation to the utility model. As described in the above embodiments of the utility model, other machining centers obtained by using the same or similar structure are all within the scope of protection of the utility model.

Claims

1. A beam self-weight deformation correction structure, comprising a beam body, characterized in that: Two lower pulling positions are provided at the middle of the bottom surface of the beam body, and an upper pulling position is symmetrically provided at the upper corners of both sides of the beam body, and the two upper pulling positions are respectively connected to the lower pulling position near one side thereof through an adjusting rod; The middle part of the bottom surface of the beam body is inwardly concave to form the lower pulling position; The upper corners of both sides of the beam body are provided with inclined surfaces to form the upper pulling position; The upper pulling position and the lower pulling position are both provided with through holes for the adjusting rod to pass through, the end of the adjusting rod passes through the through hole and is provided with a threaded portion, and a nut that can press against the upper pulling position or the lower pulling position is screwed on the threaded portion.

2. The beam self-weight deformation correction structure according to claim 1, characterized in that: The upper pulling position and the lower pulling position are parallel.

3. The beam self-weight deformation correction structure according to claim 1, characterized in that: A gasket is provided between the nut and the upper pulling position or the lower pulling position.

4. The beam self-weight deformation correction structure according to claim 1, characterized in that: The back side edge of the beam body is provided with reinforcing side ribs.

5. The beam self-weight deformation correction structure according to claim 4, characterized in that: A reinforcing rib is arranged at the center of the back side of the beam body.

6. The beam self-weight deformation correction structure according to claim 1, characterized in that: The beam body is provided with a plurality of reinforcing ribs extending along the long side direction thereof.

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