Lathe bed and machine tool

Abstract

The machine tool body comprises a guide rail, a base, a stand column and two inclined reinforcing ribs, the guide rail is located on the upper surface of the machine tool body and located above the stand column, the stand column is fixedly connected with the base, one end of each inclined reinforcing rib coincides with the connecting position of the stand column and the guide rail, and the other end of each inclined reinforcing rib coincides with the center of the base. On the basis of the stand columns in the lathe bed, the diagonal inclined reinforcing ribs are additionally arranged. The base is connected with the inclined reinforcing rib in a fillet mode at the intersection point to enhance the strength of the base, the proper thickness of the inclined reinforcing rib enables the weight of a casting body to be within a controllable range, the torsional strength and rigidity of a machine tool body in the load-bearing operation process are greatly enhanced, the unloading capacity is high, and the feeding and precision stability of a machine tool is well guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machine tool beds, in particular to a bed and a machine tool. Background Art

[0002] In order to maintain the high precision, high speed, high productivity and high reliability of the boring machine, the boring machine should have high static stiffness, dynamic stiffness and high vibration resistance during the design of the base. At present, in order to ensure the rigidity of the whole machine, most of the boring machine beds usually adopt a M-shaped or T-shaped structure in the design of the reinforcement ribs. This type of structure has many joints, and the liquid metal has poor fluidity during the casting process, which can easily cause casting defects such as flow marks and pores. Therefore, under the premise of meeting the rigidity conditions, the manufacturing cost of the whole machine is also increased, which violates the lightweight design concept of the whole machine. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model aims to realize a bed and a machine tool with good bed structure rigidity and light weight.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A bed frame includes a guide rail, a base, a column and oblique reinforcing ribs, wherein the guide rail is located on the upper surface of the bed frame and above the column, the column is fixedly connected to the base, one end of the oblique reinforcing rib coincides with the connection between the column and the guide rail, and the other end coincides with the center of the base, and the number of the oblique reinforcing ribs is two.

[0006] Preferably, the cross-section formed by the two columns and the two oblique reinforcing ribs is M-shaped.

[0007] Preferably, the bed further includes a connecting plate, the connecting plate includes a first connecting plate, the bed further includes an upper plane, the upper plane is integrally formed with the guide rail, a first chamber is formed between the upper plane and the oblique reinforcing ribs, and the first chamber is filled with the first connecting plate.

[0008] Preferably, the connecting plate further includes a second connecting plate, a second cavity is formed between the column and the base, and the second cavity is filled with the second connecting plate.

[0009] Preferably, the number of the second connecting plates is two.

[0010] Preferably, the connecting plate is provided with a hole, and the hole is connected to the connecting plate with a rounded corner.

[0011] Preferably, the column is connected to the guide rail with a rounded corner.

[0012] Preferably, the column is connected to the base with a rounded corner.

[0013] Preferably, the thickness of the connecting plate is greater than the thickness of the oblique reinforcing ribs.

[0014] A machine tool comprises the above-mentioned machine bed.

[0015] Compared with the prior art, the bed and machine tool of the utility model have the following advantages:

[0016] The bed and machine tool of the present application are provided with diagonal oblique reinforcing ribs on the foundation of the internal columns of the bed. The intersection of the base and the oblique reinforcing ribs is connected with a rounded corner to enhance its strength. The appropriate thickness of the oblique reinforcing ribs greatly enhances the torsional strength and rigidity of the bed during load-bearing operation when the weight of the casting body is within a controllable range, has a strong unloading capacity, and well ensures the feeding and precision stability of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the bed of the utility model;

[0018] Figure 2 It is a cross-sectional view of the bed of the utility model.

[0019] In the figure: 100, bed; 10, guide rail; 20, column; 30, base; 40, oblique reinforcement rib; 50, connecting plate; 51, first connecting plate; 52, second connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] Figure 1 , Figure 2 The bed and machine tool of the utility model include a bed 100 including a guide rail 10, a base 30, a column 20 and an oblique reinforcing rib 40. The guide rail 10 is located on the upper surface of the bed 100 and above the column 20. The column 20 is fixedly connected to the base 30. One end of the oblique reinforcing rib 40 coincides with the connection between the column 20 and the guide rail 10, and the other end coincides with the center of the base 30.

[0024] Specifically, the number of the oblique reinforcing ribs 40 is two.

[0025] Specifically, the oblique reinforcing ribs 40 are symmetrically distributed about the central axis of the bed 100. In a preferred embodiment, the cross section formed by the two columns 20 and the two oblique reinforcing ribs 40 is M-shaped.

[0026] The bed 100 also includes a connecting plate 50 , which includes a first connecting plate 51 and a second connecting plate 52 . The bed 100 also includes an upper plane, which is integrally formed with the guide rail 10 . A first chamber is formed between the upper plane and the oblique reinforcing ribs 40 , and the first chamber is filled with the first connecting plate 51 .

[0027] A second chamber is formed between the column 20 and the base 30 , and the second chamber is filled by the second connecting plate 52 .

[0028] Specifically, the number of the second connecting plates 52 is two.

[0029] Specifically, the connecting plate 50 is provided with a hole, and the hole is connected to the connecting plate 50 with a rounded corner.

[0030] Specifically, the column 20 is connected to the guide rail 10 with a rounded corner.

[0031] Specifically, the column 20 is connected to the base 30 with a rounded corner.

[0032] Specifically, the thickness of the connecting plate 50 is greater than the thickness of the oblique reinforcing rib 40 .

[0033] During assembly, the present application utilizes the oblique bracing integrated ribs of the two guide rails 10 of the bed 100 to extend the interior of the bed 100. One end of the oblique reinforcement rib 40 coincides with the connection between the column 20 and the guide rail 10, and the other end coincides with the center of the base 30. After reaching the bottom of the base 30, they intersect to form an M-shaped reinforcement rib. The bed and machine tool of the present application add diagonal oblique reinforcement ribs 40 on the basis of the columns 20 inside the bed 100. The intersection of the base 30 and the oblique reinforcement rib 40 is connected with a rounded corner to enhance its strength. The appropriate thickness of the oblique reinforcement rib 40 greatly enhances the torsional strength and rigidity of the bed 100 during load-bearing operation when the weight of the casting body is within a controllable range. It has a strong unloading capacity and well guarantees the feeding and precision stability of the machine tool.

[0034] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. A bed, characterized in that: It includes a guide rail, a base, a column and an oblique reinforcing rib. The guide rail is located on the upper surface of the bed and above the column. The column is fixedly connected to the base. One end of the oblique reinforcing rib coincides with the connection between the column and the guide rail, and the other end coincides with the center of the base. There are two oblique reinforcing ribs.

2. The bed according to claim 1, characterized in that: The cross section formed by the two upright columns and the two oblique reinforcing ribs is M-shaped.

3. The bed according to claim 1, characterized in that: The bed also includes a connecting plate, which includes a first connecting plate. The bed also includes an upper plane, which is integrally formed with the guide rail. A first chamber is formed between the upper plane and the oblique reinforcing ribs, and the first chamber is filled with the first connecting plate.

4. The bed according to claim 3, characterized in that: The coupling plate further includes a second coupling plate, a second cavity is formed between the column and the base, and the second cavity is filled by the second coupling plate.

5. The bed according to claim 4, characterized in that: The number of the second connecting plates is two.

6. The bed according to claim 5, characterized in that: The connecting plate is provided with a hole, and the hole is connected to the connecting plate with a rounded corner.

7. The bed according to claim 1, characterized in that: The upright column is connected to the guide rail with a rounded corner.

8. The bed according to claim 1, characterized in that: The column is connected to the base with a rounded corner.

9. The bed according to claim 3, characterized in that: The thickness of the connecting plate is greater than the thickness of the oblique reinforcing ribs.

10. A machine tool, characterized in that: It comprises a bed as described in any one of claims 1 to 9.

Images