Torsion-resistant machine tool body structure

Abstract

The utility model belongs to the technical field of machine tools, and discloses an anti-torsion machine tool body structure which is characterized in that a machine tool body is hollow to form an inner cavity, a circular core cylinder is arranged in the middle of the inner cavity and arranged in the length direction of the machine tool body, and a plurality of annular rib plates perpendicular to the cylinder wall are axially arranged on the periphery of the cylinder wall of the core cylinder at intervals; the periphery of the annular rib plate extends in the radial direction of the core cylinder to form a plurality of first rib plates, the first rib plates are connected with the wall face of the periphery of the inner cavity of the lathe bed body, the periphery of the cylinder wall of the core cylinder is further provided with a plurality of second rib plates, the second rib plates are perpendicular to the cylinder wall of the core cylinder and extend in the axial direction of the core cylinder, and the two ends of each second rib plate are connected with the two end faces of the inner cavity of the lathe bed body respectively. By means of the excellent torsion resistance of the circular structure, the whole lathe bed can be supported more stably, and the rigidity and the torsion resistance are higher; the machine tool body can meet the rigidity requirement of a machine tool in a high-speed operation state, the machining precision during high-speed operation is improved, and the problem that the machining precision is affected due to insufficient rigidity of an existing machine tool body is solved.

Description

Technical Field

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

[0002] The internal ribs of existing machine tool beds are usually arranged in a tic-tac-toe pattern, or the number of ribs is blindly increased on the basis of the tic-tac-toe pattern. The bed structure and internal ribs are not designed reasonably, the bed rigidity is insufficient, and the bed is prone to various deformations and vibrations under high-speed machining conditions, which affects the machining accuracy and limits the machining accuracy of the machine tool. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a torsion-resistant machine tool bed structure with better torsional deformation resistance and rigidity, which can better meet the rigidity requirements of the machine tool working under high-speed operation and improve the processing accuracy during high-speed operation.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A torsion-resistant machine tool bed structure includes a bed body, the bed body is hollow inside to form an inner cavity, a circular core barrel is arranged in the middle of the inner cavity, the core barrel is arranged along the length direction of the bed body, a plurality of annular ribs perpendicular to the barrel wall are arranged axially at intervals on the outer periphery of the barrel wall of the core barrel, a plurality of first ribs extend radially along the core barrel around the annular ribs, the first ribs are connected to the wall surfaces around the inner cavity of the bed body; a plurality of second ribs are also arranged on the outer periphery of the barrel wall of the core barrel, the second ribs are perpendicular to the barrel wall of the core barrel and extend axially along the core barrel, and the two ends of the second ribs are respectively connected to the two end surfaces of the inner cavity of the bed body.

[0006] The utility model has the following beneficial effects: the torsion-resistant machine tool bed structure of the utility model has a circular core barrel arranged in the middle of the inner cavity of the bed along the length direction of the bed, and the circular core barrel is connected to the wall surfaces around the inner cavity of the square bed body through a plurality of rib plates to form a specific bed reinforcement structure, and the specific reinforcement structure utilizes the excellent torsion resistance of the circular structure to provide the bed as a whole with more stable support, stronger rigidity and torsion resistance, and enable the bed to meet the rigidity requirements of the machine tool working under high-speed operation and improve the machining accuracy during high-speed operation.

[0007] Preferably, a plurality of third ribs are arranged on the periphery of the core tube wall, the third ribs are arranged radially along the core tube, the third ribs are perpendicular to the first ribs and the core tube wall, and extend from the core tube wall to the wall surface of the inner cavity and are connected to the inner cavity.

[0008] Preferably, the wall of the core tube includes a plurality of segments arranged at intervals, and each segment is connected as a whole by the second rib plate.

[0009] Preferably, the second ribs and the third ribs are the same in number and correspond to each other, and the corresponding second ribs and the third ribs are located in the same vertical plane perpendicular to the core tube and are intertwined and integrated.

[0010] Preferably, there are more than two core tubes, support columns are arranged between the core tubes, and the first ribs and the third ribs extending from each core tube toward the support columns are connected to the support columns.

[0011] Preferably, a tailstock guide rail mounting surface is provided on the upper side wall of the bed body, and an inner wall surface of the tailstock guide rail mounting surface is connected to the first rib plate and the third rib plate.

[0012] Preferably, a saddle guide rail mounting surface is provided on the upper side wall of the bed body, and an inner wall surface of the saddle guide rail mounting surface is connected to the first rib plate and the third rib plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the torsion-resistant machine tool bed structure of the utility model.

[0014] Figure 2 It is a right side view of the torsion-resistant machine tool bed structure of the utility model.

[0015] Figure 3 It is a top view of the torsion-resistant machine tool bed structure of the utility model.

[0016] Figure 4 for Figure 1 AA section view in.

[0017] Figure 5 It is a schematic diagram of the interior of the bed structure of the torsion-resistant machine tool of the utility model in the width direction.

[0018] Figure 6 It is a schematic diagram of the core barrel unit of the torsion-resistant machine tool bed structure of the utility model.

[0019] In the figure: a bed body 1; a core barrel 2; an annular rib 3; a first rib plate 4; a second rib plate 5; a third rib plate 6; a support column 7; a process hole 11; a tailstock guide rail mounting surface 12; and a saddle guide rail mounting surface 13. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly understand the technical concept to be protected by the present invention.

[0021] like Figures 1 to 5The machine tool bed shown in the figure includes a bed body 1, the interior of the bed body 1 is hollow to form a cavity with a rectangular cross section, and process holes 11 are set on the front and rear side walls, left and right side walls and lower side walls to meet the production process requirements and reduce the weight of the bed. The upper side wall of the bed body 1 is provided with a tailstock guide rail mounting surface 12 and a saddle guide rail mounting surface 13.

[0022] There are two core barrels 2 arranged along the length direction of the bed in the middle of the cavity inside the bed body 1. The core barrel 2 is circular, and the cylinder wall of the core barrel 2 is arranged at intervals along the axial direction. An annular rib plate 3 is arranged on the periphery of each cylinder wall section arranged at intervals. The annular rib plate 3 is perpendicular to the cylinder wall, and multiple first rib plates 4 are extended radially along the corresponding core barrel 2 around the annular rib plate 3. Multiple second rib plates 5 extending along the axial direction of the core barrel 2 are arranged on the periphery of the cylinder wall of the core barrel 2. The second rib plates 5 are perpendicular to the cylinder wall of the core barrel 2 and connect the multiple cylinder walls arranged at intervals into one. A circular core barrel 2 is arranged inside the bed body 1 in the longitudinal depth of the bed body. The circular core barrel 2 is connected to the inner cavity wall of the bed body through a first rib plate 4 radially extending from the outer periphery of the barrel wall, and is connected to the two end surfaces of the inner cavity of the bed body at both ends of a second rib plate 5 axially extending from the outer periphery of the barrel wall. In this reinforcement structure, the circular core barrel 2 is connected to the wall surfaces around the inner cavity of the square bed body 1 through a plurality of rib plates to form a specific bed reinforcement structure. The excellent torsional resistance of the circular structure of the core barrel is utilized to enhance the internal structural strength and stability of the bed body 1, reduce the possibility of deformation of the bed body 1 in the longitudinal and lateral directions, improve the overall torsional deformation resistance and rigidity of the bed body 1, meet the rigidity requirements of the machine tool working under high-speed operation, and improve the machining accuracy of the machine tool when running at high speed.

[0023] The third rib plate 6 is arranged radially along the core barrel 2 on the outer periphery of the barrel wall of the core barrel 2, and is perpendicular to the first rib plate 4 and the barrel wall of the core barrel 2. The third rib plate 6 is further arranged on the outer periphery of the barrel wall to connect the inner cavity wall of the bed, which can strengthen the connection between the inner cavity wall of the bed and the core barrel 2, and further enhance the internal structural strength and stability of the bed body 1. Preferably, the third rib plates 6 and the second rib plates 5 are the same in number and correspond to each other, and the corresponding second rib plates 5 and the third rib plates 6 are located in the same vertical plane perpendicular to the core barrel 2, intersecting and connecting as one, further making the third rib plate 6, the second rib plate 5 and the first rib plate 4 form an integrated cross-connected structure perpendicular to each other in three-dimensional space, further enhancing the connection between the core barrel 2 and the inner cavity wall of the bed.

[0024] The first rib plates 4 and the third rib plates 6 of the two core tubes 2 extend from the tube wall of the core tube 2 to the wall of the inner cavity and are connected to the inner cavity, wherein a support column 7 is arranged between the core tubes 2, and the first rib plates 4 and the third rib plates 6 facing the support column 7 are connected to the support column 7. The arrangement of the support column 7 can strengthen the connection between the two core tubes 2 and strengthen the support for the internal structure of the bed body 1.

[0025] One of the core barrels 2 on both sides of the support column 7 is connected to the inner wall surface of the tailstock guide rail mounting surface 12 through part of the first rib plate 4 and the third rib plate 6 to strengthen the support for the tailstock guide rail mounting surface 12, thereby improving the torsional deformation resistance and rigidity of the tailstock guide rail mounting surface 12; the inner wall surface of the saddle guide rail mounting surface 13 is connected to part of the first rib plate 4 and the third rib plate 6 of the other core barrel 2, thereby strengthening the support for the saddle guide rail mounting surface 13, thereby improving the torsional deformation resistance and rigidity of the saddle guide rail mounting surface 13.

[0026] like Figure 6 As shown, the connection combination of the core barrel 2, the annular rib 3, the first rib 4, the second rib 5 and the third rib 6 constitutes a core barrel torsion reinforcement unit. During production, a single core barrel torsion reinforcement unit or three or more core barrel torsion reinforcement units can be arranged in the cavity inside the bed body 1 as needed.

[0027] For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and concepts described above, and all of these changes and modifications should fall within the protection scope of the claims of the utility model.

Claims

1. A torsion-resistant machine tool bed structure, comprising a bed body (1), wherein the bed body (1) is hollow inside to form an inner cavity, and is characterized in that: A circular core barrel (2) is arranged in the middle of the inner cavity. The core barrel (2) is arranged along the length direction of the bed. A plurality of annular ribs (3) perpendicular to the barrel wall are arranged at intervals along the axial direction on the outer periphery of the barrel wall of the core barrel (2). A plurality of first ribs (4) extend radially from the core barrel (2) around the annular ribs (3). The first ribs (4) are connected to the wall surfaces around the inner cavity of the bed body (1). A plurality of second ribs (5) are also arranged on the outer periphery of the barrel wall of the core barrel (2). The second ribs (5) are perpendicular to the barrel wall of the core barrel (2) and extend axially along the core barrel (2). The two ends of the second ribs (5) are respectively connected to the two end surfaces of the inner cavity of the bed body (1).

2. The torsion-resistant machine tool bed structure according to claim 1, characterized in that: A plurality of third ribs (6) are arranged on the outer periphery of the core tube (2) wall. The third ribs (6) are arranged radially along the core tube (2). The third ribs (6) are perpendicular to the first ribs (4) and the core tube (2) wall, and extend from the core tube (2) wall to the wall surface of the inner cavity and are connected to the inner cavity.

3. The torsion-resistant machine tool bed structure according to claim 1, characterized in that: The wall of the core barrel (2) comprises a plurality of segments arranged at intervals, and each segment is connected as a whole by the second rib plate (5).

4. The torsion-resistant machine tool bed structure according to claim 2, characterized in that: The second rib plates (5) and the third rib plates (6) are the same in number and correspond to each other. The corresponding second rib plates (5) and the third rib plates (6) are located in the same vertical plane perpendicular to the core tube (2) and are intersected and connected as a whole.

5. The torsion-resistant machine tool bed structure according to claim 2, characterized in that: There are more than two core barrels (2), and support columns (7) are arranged between the core barrels (2). The first ribs (4) and the third ribs (6) extend from each core barrel (2) toward the support columns (7) and are connected to the support columns (7).

6. The torsion-resistant machine tool bed structure according to claim 4, characterized in that: A tailstock guide rail mounting surface (12) is provided on the upper side wall of the bed body (1), and the inner wall surface of the tailstock guide rail mounting surface (12) is connected to the first rib plate (4) and the third rib plate (6).

7. The torsion-resistant machine tool bed structure according to claim 4, characterized in that: A saddle rail mounting surface (13) is provided on the upper side wall of the bed body (1), and the inner wall surface of the saddle rail mounting surface (13) is connected to the first rib plate (4) and the third rib plate (6).

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