An integrated welded beam-column structure suitable for a moving column gantry machining center

Abstract

The utility model discloses a kind of integrated welding crossbeam stand structure suitable for moving column gantry machining center, including the crossbeam stand body welded by the steel plate of thickness 6~20mm, crossbeam stand body includes crossbeam box and two stand legs, two stand legs are symmetrically welded in the bottom of crossbeam box left and right sides, each stand leg is welded on a stand bottom plate, each stand leg includes the outside plate, front inclined plate, front vertical plate, rear vertical plate and inside plate welded as a whole, the upper portion of outside plate covers and is welded in the side of crossbeam box, crossbeam box includes the crossbeam bottom plate, back plate, top plate and front plate welded as a whole, the inside of crossbeam box and two stand legs respectively transverse and longitudinal staggered welding has web. The processing and installation of the crossbeam stand structure are convenient, can effectively reduce weight, and mechanical performance is greatly promoted, simultaneously can adapt to the installation requirement of different drive components and different tool magazine etc. functional module of moving column gantry machining center.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-speed machining centers, specifically relating to an integrated welded beam and column structure suitable for moving column gantry machining centers. Background Technology

[0002] Traditional gantry machining centers primarily use cast iron for their columns and beams, with their structural design relying on heavy castings to ensure rigidity and stability. However, as modern manufacturing demands increasingly higher machine tool performance, traditional cast iron structures are showing multiple limitations. Currently, the market demands a comprehensive combination of lightweight, high-speed, high-precision, and energy-efficient features from gantry machining centers, challenges that existing cast iron structures can no longer meet in terms of material properties and design.

[0003] First, the limitations of structural design lie in the contradiction between material thickness and performance. Currently, the wall thickness of cast iron columns and beams is generally over 25mm. While excessive thickness can improve static rigidity, it significantly increases the overall weight of the machine, thus affecting dynamic response speed and energy efficiency. Simply reducing the wall thickness to achieve lightweighting, however, leads to defects such as shrinkage cavities and deformation during casting due to the brittle nature of cast iron, making it difficult to guarantee the quality of the finished product. Furthermore, the casting process for cast iron is complex, requiring extremely high precision in molds and strict cooling control, further limiting the flexibility of structural design.

[0004] Secondly, the inherent physical properties of cast iron become a bottleneck for performance improvement. In high-speed cutting scenarios, the dynamic rigidity of cast iron structures is insufficient, easily leading to vibration and thermal deformation, resulting in decreased machining accuracy. Simultaneously, cast iron has poor weldability, making it difficult to optimize weak areas through localized reinforcement processes, and its low impact toughness also limits its reliability in complex load environments. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an integrated welded beam and column structure suitable for moving column gantry machining centers, which is convenient to process and install, lightweight, and has significantly improved mechanical performance, in order to address the shortcomings of the existing technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an integrated welded beam column structure suitable for a moving column gantry machining center, comprising a beam column body welded from steel plates with a thickness of 6-20mm, the beam column body comprising a beam box and two column legs, the two column legs being symmetrically welded to the left and right sides of the bottom of the beam box, each column leg being welded to a column base plate, each column leg comprising an outer side plate, a front inclined plate, a front vertical plate, a rear vertical plate and an inner side plate welded together, the upper part of the outer side plate covering and welded to the side of the beam box, the beam box comprising a beam base plate, a back plate, a top plate and a front plate welded together, the inner sides of the beam box and the two column legs being respectively welded with ribs in a crisscross pattern.

[0007] This utility model adopts an integrated structure of column and beam, which eliminates the processing and installation problems of the relative mounting surfaces between the traditional column and beam structures. It is convenient to process and install. During installation, only the horizontal and vertical alignment between the overall beam and column structure and the machine tool bed needs to be adjusted.

[0008] This utility model's beam and column structure is entirely welded from steel plates with a thickness of 6-20mm. Compared to traditional cast beams and columns, it effectively reduces weight and significantly improves mechanical performance. Furthermore, because this utility model's beam and column structure uses an integrated welded structure, it can adapt to the installation requirements of different drive components and tool magazines in a moving-column gantry machining center. Compared to traditional castings, this utility model's beam and column structure facilitates the modification and optimization of the installation positions of various functional modules, eliminating the need for wooden mold modifications required for castings, thus resulting in lower modification costs and shorter modification cycles.

[0009] Preferably, an upper mounting plate and a lower mounting plate are welded to the upper and lower sides of the front plate, respectively. The upper mounting plate and the lower mounting plate are used to install the upper rail and the lower rail, respectively. The upper rail and the lower rail are used to install the slide saddle.

[0010] As a further preferred embodiment, a Y-axis motor mount plate and a tailstock mount plate are welded to the left and right sides of the front plate, respectively, and the Y-axis motor mount plate and tailstock mount plate are used to mount the drive components of the Y-axis.

[0011] As a further preferred embodiment, the bottom of the upper mounting plate and the lower mounting plate are integrally provided with a first protruding boss and a second protruding boss protruding forward, respectively. The front side and top of the upper mounting plate are respectively provided with a plurality of first threaded holes and a plurality of second threaded holes. The plurality of first threaded holes are used to install a plurality of first fastening screws, and the plurality of second threaded holes are used to install a plurality of second fastening screws. The front side of the lower mounting plate is respectively provided with a plurality of third threaded holes and a plurality of fourth threaded holes. The plurality of third threaded holes are used to install a plurality of eccentric screws, and the plurality of fourth threaded holes are used to install a plurality of third fastening screws. After installation, the upper rail is fixed to the front side of the upper mounting plate by a plurality of first fastening screws, and the upper rail is pressed against the first boss by a pressure plate. The pressure plate is fixed to the top of the upper mounting plate by a plurality of second fastening screws. The lower rail is fixed to the front side of the lower mounting plate by a plurality of third fastening screws, and the lower rail is pressed against the second boss by a plurality of eccentric screws. In traditional structures, wedge grooves and wedge blocks are often used to adjust and position the lower rail. However, the processing of these wedge grooves is complex and costly. This utility model employs a design with several third threaded holes and several eccentric screws to adjust and position the lower rail in the upper and lower installation positions. It is easy to manufacture, with short processing time and low cost. Adjustment is convenient, reducing the installation and debugging time of the lower rail while ensuring installation accuracy. Simultaneously, the upper rail is pressed tightly by a pressure plate, resulting in a simple structure and convenient installation.

[0012] Preferably, an X-axis motor mount plate is welded to the lower part of the outer side plate, and the X-axis motor mount plate is used to mount the X-axis drive component.

[0013] Preferably, a tool magazine mounting plate is welded to the upper part of the outer side plate, and the tool magazine mounting plate is used to install the tool magazine bracket.

[0014] Preferably, the thicknesses of the outer side plate, front inclined plate, front vertical plate, rear vertical plate, inner side plate, crossbeam bottom plate, top plate, front plate and column bottom plate are 10-20mm, and the thicknesses of the back plate and stiffening plate are 6-12mm.

[0015] Preferably, the outer side plate, front inclined plate, front vertical plate, rear vertical plate, inner side plate, top plate, and front plate are each provided with a plurality of hollow holes. The design of these hollow holes, while ensuring rigidity and strength, is not only conducive to the subsequent arrangement of machine tool pipes and wires, but also further reduces the overall weight of the crossbeam and column structure of this utility model.

[0016] Compared with the prior art, the present invention has the following advantages: Compared with the traditional casting form of beams and columns, the integrated welded beam and column structure of the present invention is easier to process and install, can effectively reduce weight, and has a significant improvement in mechanical performance. At the same time, it can adapt to the installation requirements of different drive components and different tool magazines of the moving column gantry machining center, and is more convenient to modify and optimize the installation position of each functional module. It does not require the modification of wooden molds as with castings, thus having lower modification costs and shorter modification cycles. Attached Figure Description

[0017] Figure 1 This is a front axonometric view of the integrated welded beam and column structure in the embodiment.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a rear axonometric view of the integrated welded beam and column structure in the embodiment.

[0020] Figure 4 This is a longitudinal sectional view of the side of the integrated welded beam and column structure in the embodiment.

[0021] Figure 5 This is a longitudinal sectional view of the front of the integrated welded beam and column structure in the embodiment.

[0022] Figures 1-5 The specific reference numerals in the attached figures are as follows:

[0023] 1-Column base plate, 2-Outer side plate, 3-Front inclined plate, 4-Front vertical plate, 5-Rear vertical plate, 6-Inner side plate, 7-Crossbeam base plate, 8-Back plate, 9-Top plate, 10-Front plate, 11-Upper mounting plate, 12-Lower mounting plate, 13-X-axis motor mount mounting plate, 14-Tool magazine mount plate, 15-Y-axis motor mount mounting plate, 16-Tailstock mount plate, 17-Rib plate, 18-First boss, 19-Second boss, 20-First threaded hole, 21-Second threaded hole, 22-Third threaded hole, 23-Fourth threaded hole, 24-Hollow hole. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] The embodiment describes an integrated welded beam and column structure suitable for moving-column gantry machining centers, such as... Figures 1-5As shown, the beam and column body is welded from Q235B steel plates with a thickness of 6-20mm. The beam and column body includes a beam box and two column legs. The two column legs are symmetrically welded to the left and right sides of the bottom of the beam box. Each column leg is welded to a column base plate 1. Each column leg includes an outer side plate 2, a front inclined plate 3, a front vertical plate 4, a rear vertical plate 5, and an inner side plate 6 welded together. The upper part of the outer side plate 2 covers and is welded to the side of the beam box. The beam box includes a beam base plate 7, a back plate 8, a top plate 9, and a front plate 10 welded together. The inner sides of the beam box and the two column legs are respectively welded with ribs 17 in a crisscross pattern.

[0026] In this embodiment, an upper mounting plate 11 and a lower mounting plate 12 are welded to the upper and lower sides of the front plate 10, respectively. The upper mounting plate 11 and the lower mounting plate 12 are used to install the upper linear guide and the lower linear guide, respectively, and the upper linear guide and the lower linear guide are used to install the slide saddle. A Y-axis motor mount plate 15 and a tailstock mount plate 16 are welded to the left and right sides of the front plate 10, respectively. The Y-axis motor mount plate 15 and the tailstock mount plate 16 are used to install the Y-axis drive components. The bottom of the upper mounting plate 11 and the lower mounting plate 12 are integrally provided with a forward-protruding first boss 18 and a second boss 19, respectively. The front side and the top of the upper mounting plate 11 are respectively provided with a plurality of first threaded holes 20 and a plurality of second threaded holes 21. The plurality of first threaded holes 20 are used to install the upper linear guide and the lower linear guide. A number of first fastening screws are installed, and a number of second threaded holes 21 are used to install a number of second fastening screws. A number of third threaded holes 22 and a number of fourth threaded holes 23 are respectively opened on the front side of the lower mounting plate 12. The number of third threaded holes 22 are used to install a number of eccentric screws, and the number of fourth threaded holes 23 are used to install a number of third fastening screws. After installation, the upper rail is fixed to the front side of the upper mounting plate 11 by a number of first fastening screws. The upper rail is pressed against the first boss 18 by a pressure plate. The pressure plate is fixed to the top of the upper mounting plate 11 by a number of second fastening screws. The lower rail is fixed to the front side of the lower mounting plate 12 by a number of third fastening screws. The lower rail is pressed against the second boss 19 by a number of eccentric screws.

[0027] In this embodiment, an X-axis motor mount plate 13 is welded to the lower part of the outer side plate 2. The X-axis motor mount plate 13 is used to mount the X-axis drive component. A tool magazine mount plate 14 is welded to the upper part of the outer side plate 2. The tool magazine mount plate 14 is used to mount the tool magazine bracket.

[0028] In this embodiment, specifically, the outer side plate 2, the front inclined plate 3, the front vertical plate 4, the rear vertical plate 5, the inner side plate 6, the crossbeam bottom plate 7, the top plate 9, the front plate 10, and the column bottom plate 1 are all 16mm thick, and the back plate 8 and the stiffening plate 17 are 8mm thick. The outer side plate 2, the front inclined plate 3, the front vertical plate 4, the rear vertical plate 5, the inner side plate 6, the top plate 9, and the front plate 10 are each provided with a number of rectangular or circular hollow holes 24.

[0029] The total weight of the integrated welded beam and column structure described in the above embodiment is approximately 50% of that of a casting with the same shape and size, while its rigidity is increased by 40% compared to castings, demonstrating significant advantages. Furthermore, this integrated welded beam and column structure is easy to process and install; during installation, only the levelness and perpendicularity between the overall beam and column structure and the machine tool bed need to be adjusted. This integrated welded beam and column structure can adapt to the installation requirements of different drive components and tool magazines in a moving-column gantry machining center. Compared to traditional castings, this integrated welded beam and column structure facilitates the modification and optimization of the installation positions of various functional modules, eliminating the need for wooden mold modifications as with castings, thus resulting in lower modification costs and shorter modification cycles.

Claims

1. An integrated welded beam-column structure suitable for a moving-column gantry machining center, characterized in that, The device includes a beam-column body welded from steel plates with a thickness of 6-20mm. The beam-column body includes a beam box and two column legs. The two column legs are symmetrically welded to the left and right sides of the bottom of the beam box. Each column leg is welded to a column base plate. Each column leg includes an outer side plate, a front inclined plate, a front vertical plate, a rear vertical plate, and an inner side plate welded together. The upper part of the outer side plate covers and is welded to the side of the beam box. The beam box includes a beam base plate, a back plate, a top plate, and a front plate welded together. The inner sides of the beam box and the two column legs are respectively welded with ribs in a crisscross pattern.

2. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 1, characterized in that, An upper mounting plate and a lower mounting plate are welded to the upper and lower sides of the front plate, respectively. The upper mounting plate and the lower mounting plate are used to install the upper rail and the lower rail, respectively. The upper rail and the lower rail are used to install the slide saddle.

3. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 2, characterized in that, The left and right sides of the front plate are respectively welded with a Y-axis motor mount plate and a tailstock mount plate, which are used to mount the Y-axis drive components.

4. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 2, characterized in that, The bottom of the upper mounting plate and the lower mounting plate are integrally provided with a first protrusion and a second protrusion protruding forward, respectively. The front side and top of the upper mounting plate are respectively provided with a plurality of first threaded holes and a plurality of second threaded holes. The plurality of first threaded holes are used to install a plurality of first fastening screws, and the plurality of second threaded holes are used to install a plurality of second fastening screws. The front side of the lower mounting plate is respectively provided with a plurality of third threaded holes and a plurality of fourth threaded holes. The plurality of third threaded holes are used to install a plurality of eccentric screws, and the plurality of fourth threaded holes are used to install a plurality of third fastening screws. After installation, the upper rail is fixed to the front side of the upper mounting plate by a plurality of first fastening screws, and the upper rail is pressed against the first protrusion by a pressure plate. The pressure plate is fixed to the top of the upper mounting plate by a plurality of second fastening screws. The lower rail is fixed to the front side of the lower mounting plate by a plurality of third fastening screws, and the lower rail is pressed against the second protrusion by a plurality of eccentric screws.

5. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 1, characterized in that, An X-axis motor mount plate is welded to the lower part of the outer side plate, and the X-axis motor mount plate is used to mount the X-axis drive component.

6. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 1, characterized in that, A tool magazine mounting plate is welded to the upper part of the outer side plate, and the tool magazine mounting plate is used to install the tool magazine bracket.

7. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 1, characterized in that, The thicknesses of the outer side plate, front inclined plate, front vertical plate, rear vertical plate, inner side plate, crossbeam bottom plate, top plate, front plate, and column bottom plate are 10-20 mm, and the thicknesses of the back plate and stiffening plate are 6-12 mm.

8. The integrated welded beam and column structure suitable for a moving-column gantry machining center according to claim 1, characterized in that, The outer side plate, front inclined plate, front vertical plate, rear vertical plate, inner side plate, top plate, and front plate are each provided with a number of hollow holes.

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