Double stand columns for gantry machine tool

Abstract

The utility model discloses a double stand column for a gantry machine tool, and relates to the technical field of gantry machine tools, in particular to a double stand column for a gantry machine tool, which comprises a gantry stand column, a mounting groove for mounting a bolt is arranged at the bottom of the outer side of the gantry stand column, and the whole gantry stand column is herringbone. The inner wall of the gantry stand column is fixedly connected with a rib plate for supporting the gantry stand column, the rib plate is shaped like a Chinese character'mi ', meanwhile, a supporting frame is arranged in the middle of the interior of the gantry stand column, the supporting frame is fixed to the joint point of the rib plate on the inner wall of the gantry stand column, and the bottom of the supporting frame is fixedly connected with a fixed base. According to the double stand columns for the gantry machine tool, the gantry stand columns are in a herringbone shape, under the supporting of the rib plates in the shape like the Chinese character'mi 'on the inner walls of the gantry stand columns, forward inclination of the machine tool can be effectively restrained, the machining stability is ensured, and under the supporting of the supporting frames in the gantry stand columns, the gantry stand columns are more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry machine tools, in particular to a double column for gantry machine tools. Background Art

[0002] Gantry CNC machine tools, also known as gantry machining centers, are milling machines with a portal frame and a horizontal long bed. Gantry CNC machine tools can use one or more milling cutters to process workpieces at the same time. Their machining accuracy and production efficiency are relatively high. They are suitable for processing the plane and inclined surfaces of large workpieces in batch and mass production, and can also process spatial curved surfaces and some specific parts. Gantry machining centers are generally equipped with tool magazines with automatic tool changing functions. After the workpiece is clamped, the CNC system can control the machine tool to select tools, replace tools, automatically set tools, automatically change the spindle speed and feed rate, etc. according to different processes, and can continuously complete drilling, boring, milling, tapping and other operations. The process has good economic benefits for processing parts with complex shapes, high precision requirements, and frequent variety changes. The column on the gantry machine tool is one of the main parts of the machining center and the main load-bearing part of the gantry frame structure of the gantry machining center. However, the column is mainly fixed on the machine bed by bolts, and a crossbeam is provided on the column. The crossbeam moves along the column guide rail, and the boring and milling head moves along the crossbeam guide rail. This will easily lead to excessive position deviation and fail to achieve machining accuracy, reducing the machining stability and machining accuracy of the gantry machine tool. For this reason, we proposed a double column for gantry machine tools. Utility Model Content

[0003] The utility model provides a double column for a gantry machine tool, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a double column for a gantry machine tool, including a gantry column, a mounting groove for mounting bolts is opened at the bottom of the outer side of the gantry column, the gantry column is in a herringbone shape as a whole, and the inner wall of the gantry column is fixedly connected with a rib plate for supporting the gantry column, the rib plate is in a cross shape, and a support frame is arranged in the middle of the gantry column, the support frame is fixed to the intersection of the rib plate on the inner wall of the gantry column, and a fixed base is fixedly connected to the bottom of the support frame, and a locking sleeve for limiting the bolts is movably connected to the top of the inner cavity of the mounting groove.

[0005] Optionally, a top end of the locking sleeve is fixedly connected to a first spring, and a top end of the first spring is fixed to a gantry column.

[0006] Optionally, the bottom end of the locking sleeve abuts against the inner bottom of the mounting groove, and a bolt insertion groove corresponding to the bolt is provided at the inner bottom of the mounting groove.

[0007] Optionally, the fixed base is internally movably connected with a limit plug-in plate, and the bottom end of the limit plug-in plate can extend out of the gantry column and be plugged into the machine tool bed.

[0008] Optionally, an inclined notch is provided in the middle of the top end of the position limiting plug-in plate, and a driving inclined plate is movably connected inside the fixed base, and the driving inclined plate corresponds to the notch.

[0009] Optionally, one end of the driving inclined plate is fixedly connected to a second spring, and one end of the second spring is fixed to a fixed base.

[0010] Optionally, a limiting column is fixed to the other end of the driving inclined plate, and one end of the limiting column passes through the gantry column, extends into the installation groove and is plugged into the locking sleeve.

[0011] The utility model has the following beneficial effects:

[0012] 1. The gantry machine tool uses a double column. The gantry column adopts a herringbone shape and is supported by a M-shaped rib plate on the inner wall of the gantry column. This can effectively suppress the forward tilt of the machine tool and ensure the stability of the processing. In addition, with the support of its internal support frame, the gantry column is more stable, thereby making the processing more stable.

[0013] 2. The double columns of the gantry machine tool can be plugged into the fixed bolts under the action of the elastic force of the locking sleeve, which effectively prevents the bolts from slipping, thereby making the fixation of the gantry columns more stable. In addition, under the plug-in action of the limiting column and the locking sleeve, the position of the first spring can be limited, thereby making the fixation of the gantry columns more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is another cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the support frame connection of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model at A;

[0019] Figure 6 It is a schematic diagram of the structure of B of the utility model.

[0020] In the figure: 1. gantry column; 2. mounting groove; 3. locking sleeve; 4. limiting column; 5. rib plate; 6. support frame; 7. fixed base; 8. first spring; 9. bolt insertion groove; 10. driving inclined plate; 11. limit insertion plate; 12. second spring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 5 A double column for a gantry machine tool comprises a gantry column 1. The bottom of the outer side of the gantry column 1 is provided with a mounting groove 2 for mounting bolts. The gantry column 1 can be fixed to the machine bed by installing the bolts. The gantry column 1 is in a herringbone shape as a whole, which can effectively suppress the forward tilt of the machine tool and ensure the stability of processing. The inner wall of the gantry column 1 is fixedly connected with a rib plate 5 for supporting the gantry column 1. The rib plate 5 is in a cross-shaped shape, which makes the support of the gantry column 1 more stable, can effectively suppress the forward tilt of the machine tool and ensure the stability of processing. A support frame 6 is provided in the middle of the column 1, and the intersection of the support frame 6 and the rib plate 5 on the inner wall of the gantry column 1 is fixed. Under the supporting action of the support frame 6, the gantry column 1 as a whole is more stable, and a fixed base 7 is fixedly connected to the bottom of the support frame 6, and a locking sleeve 3 for limiting the bolt is movably connected to the top of the inner cavity of the mounting groove 2, and the locking sleeve 3 can be moved on a fixed trajectory on the gantry column 1, and the locking sleeve 3 can be plugged into the bolt to limit the bolt, which can effectively prevent the bolt from slipping.

[0023] See also Figures 1 to 5 The top end of the locking sleeve 3 is fixedly connected with a first spring 8, and the top end of the first spring 8 is fixed to the gantry column 1. Under the push of the elastic force of the first spring 8, the locking sleeve 3 can stably limit the bolt.

[0024] See also Figures 1 to 5 The bottom end of the locking sleeve 3 abuts against the inner bottom of the mounting groove 2, and a bolt insertion groove 9 corresponding to the bolt is opened at the inner bottom of the mounting groove 2. The bolt insertion groove 9 is inserted into the bolt, so that the first spring 8 can limit the bolt to prevent the bolt from rotating, thereby making the bolt more stably fixed.

[0025] See also Figures 1 to 6The fixed base 7 is internally movably connected with a limit plug-in plate 11, and the limit plug-in plate 11 can be moved on a fixed track on the fixed base 7. The bottom end of the limit plug-in plate 11 can extend out of the gantry column 1 and be plugged into the machine tool bed. When the limit plug-in plate 11 is plugged into the machine tool bed, the gantry column 1 can be supported, which can effectively prevent the possible position deviation of the gantry column 1.

[0026] See also Figures 1 to 6 An inclined slot is provided in the middle of the top of the limiting plug-in plate 11, and a driving inclined plate 10 is movably connected inside the fixed base 7. The driving inclined plate 10 corresponds to the slot, and the driving inclined plate 10 and the fixed base 7 can move relative to each other. Under the action of the inclined structure, the movement of the driving inclined plate 10 can push the limiting plug-in plate 11 to move.

[0027] See also Figures 1 to 6 One end of the driving inclined plate 10 is fixedly connected to a second spring 12 , and one end of the second spring 12 is fixed to the fixed base 7 . Under the push of the elastic force of the second spring 12 , the driving inclined plate 10 can move.

[0028] See also Figures 1 to 6 A limiting column 4 is fixed to the other end of the driving inclined plate 10. Driven by the driving inclined plate 10, the limiting column 4 can move. One end of the limiting column 4 passes through the gantry column 1 and extends into the installation groove 2 and is plugged into the locking sleeve 3, so that the limiting column 4 can limit the locking sleeve 3 to prevent the locking sleeve 3 from easily detaching from the bolt, thereby making the fixation of the gantry column 1 more stable.

[0029] In summary, the gantry machine tool uses a double column. When the gantry column 1 is installed on the machine tool bed, the bolt is screwed in the installation groove 2, so that the gantry column 1 and the machine tool bed can be fixed to each other, and then under the push of the elastic force of the first spring 8, the bolt insertion groove 9 on the locking sleeve 3 is plugged with the bolt, and then the bolt is limited. Thereafter, under the push of the elastic force of the second spring 12, the driving inclined plate 10 can move, and then the limiting plug-in plate 11 is pushed downward to be plugged with the machine tool bed, and under the push of the driving inclined plate 10, the limiting column 4 passes through the gantry column 1 and is plugged with the locking sleeve 3, and the locking sleeve 3 is limited, so that the fixation of the gantry column 1 is more stable.

[0030] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double column for a gantry machine tool, comprising a gantry column (1), wherein the bottom of the outer side of the gantry column (1) is provided with a mounting groove (2) for mounting bolts, characterized in that: The gantry column (1) is in the shape of a herringbone as a whole, and a rib plate (5) for supporting the gantry column (1) is fixedly connected to the inner wall of the gantry column (1), and the rib plate (5) is in the shape of a cross. A support frame (6) is arranged in the middle of the gantry column (1), and the support frame (6) is fixed to the intersection of the rib plate (5) on the inner wall of the gantry column (1), and a fixed base (7) is fixedly connected to the bottom of the support frame (6), and a locking sleeve (3) for limiting the bolt is movably connected to the top of the inner cavity of the installation groove (2).

2. A double column for a gantry machine tool according to claim 1, characterized in that: The top end of the locking sleeve (3) is fixedly connected to a first spring (8), and the top end of the first spring (8) is fixed to the gantry column (1).

3. A double column for a gantry machine tool according to claim 2, characterized in that: The bottom end of the locking sleeve (3) abuts against the inner bottom of the installation groove (2), and a bolt insertion groove (9) corresponding to the bolt is provided on the inner bottom of the installation groove (2).

4. The double column for gantry machine tool according to claim 1, characterized in that: The fixed base (7) is internally movably connected to a limit plug-in plate (11), and the bottom end of the limit plug-in plate (11) can extend out of the gantry column (1) to be plugged into the machine tool bed.

5. The double column for gantry machine tool according to claim 4, characterized in that: An inclined notch is provided in the middle of the top of the limit plug-in plate (11), and a driving inclined plate (10) is movably connected inside the fixed base (7), and the driving inclined plate (10) corresponds to the notch.

6. A double column for a gantry machine tool according to claim 5, characterized in that: One end of the driving inclined plate (10) is fixedly connected to a second spring (12), and one end of the second spring (12) is fixed to a fixed base (7).

7. A double column for a gantry machine tool according to claim 6, characterized in that: A limiting column (4) is fixed to the other end of the driving inclined plate (10), and one end of the limiting column (4) passes through the gantry column (1), extends into the installation groove (2), and is plugged into the locking sleeve (3).

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