Welding beam of crown block type gantry machining center

Abstract

The utility model discloses a welding cross beam of a crown block type gantry machining center. Comprising a front plate, a back plate opposite to the front plate, a top plate arranged above the front plate and the back plate, a bottom plate arranged below the front plate and the back plate, guide rail flat iron symmetrically arranged at the upper end and the lower end of the front plate, rack flat iron arranged on the front plate and grating ruler flat iron arranged on the front plate. The flat iron for the rack and the flat iron for the grating ruler are arranged between the flat iron for the guide rail at the upper end and the flat iron for the guide rail at the lower end, and the flat iron for the guide rail, the flat iron for the rack and the flat iron for the grating ruler are fixedly installed on the front plate. The beneficial effects of the utility model are that drooping deformation of the crossbeam can be effectively counteracted; the transverse rib plates and the longitudinal rib plates are matched in the cross beams, the transverse rib plates close to the bottoms of the cross beams are welded to the arc plates in a profiling fit mode, and the bending resistance of the arc plates is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of welding beam technology, and in particular to a welding beam for a crane-type gantry machining center. Background Technology

[0002] With the development of the aerospace industry, the size of related components is increasingly trending towards larger dimensions and lighter weight. When machining some composite material parts, long-stroke, large-span overhead crane gantry machining centers are often required. Overhead crane gantry machining centers are characterized by their compact structure and small footprint. The worktable is fixed and its movement speed is not affected by the weight of the workpiece. Therefore, crossbeams with long stroke, large span, light weight, good rigidity, and minimal deformation are particularly important. Currently, the crossbeams of overhead crane gantry machining centers on the market can be made by casting cast iron or welding structural components.

[0003] Cast beams are made by pouring molten iron into a pre-prepared mold, cooling it, and then cleaning and polishing it to obtain the desired shape, size, and performance. Welded beams, on the other hand, are often made from plates, pipes, and other structural components, which are cut and welded to achieve the desired shape, size, and performance. Cast beams, for the same stroke and span, are often heavier (the elastic modulus of gray cast iron is smaller than that of carbon steel), resulting in slower movement speeds and lower processing efficiency.

[0004] Welded beams cannot use the complex ribs and cavities of cast beams. Common welded beams rarely use curved shapes and are often straight plates; they cannot meet the processing needs of enterprises.

[0005] In view of the above, it is necessary to improve the existing welded beam structure to meet the current needs of welded beam use. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a welding beam for a crane-type gantry machining center, including a front plate, a back plate opposite to the front plate, a top plate above the front plate and the back plate, a bottom plate below the front plate and the back plate, flat irons for guide rails symmetrically arranged at the upper and lower ends of the front plate, flat irons for racks and pinions arranged on the front plate, and flat irons for grating rulers arranged on the front plate. The flat irons for racks and pinions are arranged between the flat irons for guide rails at the upper and lower ends, and the flat irons for guide rails, racks, and grating rulers are fixedly installed on the front plate.

[0007] As a further supplement to this technical solution, a number of longitudinal stiffeners are provided between the top plate and the bottom plate, and the longitudinal stiffeners are fixedly installed between the top plate and the bottom plate.

[0008] As a further supplement to this technical solution, the top plate, bottom plate, front plate, and back plate are also provided with several transverse stiffeners, and the longitudinal stiffeners are provided with multiple process grooves around their perimeter for installing the transverse stiffeners.

[0009] As a further supplement to this technical solution, the base plate includes fixed plates disposed on the left and right sides below the front plate and the back plate, and an arc plate disposed between the two fixed plates, the two ends of the arc plate being fixedly connected to the fixed plates.

[0010] As a further supplement to this technical solution, the back plate is provided with several wire threading holes.

[0011] As a further supplement to this technical solution, the front panel is provided with lifting holes on both the left and right sides.

[0012] Its beneficial effect is that the bottom of the crossbeam is a large-span arc plate, which arches upwards and can effectively counteract the sagging deformation of the crossbeam.

[0013] The beam is fitted with transverse and longitudinal stiffeners, and the transverse stiffeners near the bottom of the beam are welded to the arc plate in a conformal fit to enhance the arc plate's resistance to bending.

[0014] The internal transverse and longitudinal stiffeners are interlocked through process grooves, which improves the strength of the welded thick transverse and longitudinal stiffeners. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model from a first angle;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from a second angle;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third angle;

[0018] In the diagram, 1 is the front plate; 2 is the back plate; 3 is the top plate; 4 is the bottom plate; 41 is the fixing plate; 42 is the arc plate; 5 is the flat iron for the guide rail; 6 is the flat iron for the rack; 7 is the flat iron for the grating ruler; 8 is the longitudinal stiffener; 9 is the transverse stiffener; 10 is the process groove; 11 is the wire threading process hole; and 12 is the hoisting hole. Detailed Implementation

[0019] To facilitate a clearer understanding of this technical solution for those skilled in the art, the following will be described in conjunction with the appendix. Figure 1-3 The technical solution of this utility model is described in detail below:

[0020] A welded crossbeam of a crane-type gantry machining center includes a front plate 1, a back plate 2 opposite to the front plate 1, a top plate 3 above the front plate 1 and the back plate 2, a bottom plate 4 below the front plate 1 and the back plate 2, flat irons 5 for guide rails symmetrically arranged at the upper and lower ends of the front plate 1, flat irons 6 for racks and pinions arranged on the front plate 1, and flat irons 7 for grating rulers arranged on the front plate 1. The flat irons 6 for racks and pinions 7 are arranged between the flat irons 5 at the upper and lower ends of the front plate 1, and the flat irons 5 for guide rails, 6 for racks and pinions, and 7 for grating rulers are fixedly installed on the front plate 1. The front plate 1, top plate 3, back plate 2, bottom plate 4, flat irons 5 for guide rails, 6 for racks and pinions, 7 for grating rulers, transverse stiffeners 9, and longitudinal stiffeners 8 are welded components.

[0021] Among them, a number of longitudinal stiffeners 8 are provided between the top plate 3 and the bottom plate 4, and the longitudinal stiffeners 8 are fixedly installed between the top plate 3 and the bottom plate 4; and a number of transverse stiffeners 9 are also provided on the top plate 3, the bottom plate 4, the front plate 1, and the back plate 2. Multiple process grooves 10 are provided around the longitudinal stiffeners 8 for installing the transverse stiffeners 9, so that the stiffeners interlock and ensure welding strength.

[0022] The base plate 4 includes fixed plates 41 located on the left and right sides below the front plate 1 and the back plate 2, and an arc plate 42 located between the two fixed plates 41. The two ends of the arc plate 42 are fixedly connected to the fixed plates 41. The base plate 4 is welded together from the middle arc plate 42 and the two fixed plates 41. The lower part of the front plate 1 and the back plate 2 are cut with arcs that resemble the middle arc plate 42. The two horizontal stiffeners 9 at the bottom are also cut with arcs that resemble the middle arc plate 42. In order to reduce the sagging deformation of the crossbeam, the bottom of the crossbeam is a large-span arc plate 42, which arches upward to effectively counteract the sagging deformation of the crossbeam.

[0023] The back plate 2 is provided with several threading holes 11.

[0024] Among them, the front panel 1 has hoisting holes 12 on the left and right sides.

[0025] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A welded crossbeam for a crane-type gantry machining center, characterized in that, It includes a front plate (1), a back plate (2) opposite to the front plate (1), a top plate (3) above the front plate (1) and the back plate (2), a bottom plate (4) below the front plate (1) and the back plate (2), flat iron for guide rails (5) symmetrically arranged at the upper and lower ends of the front plate (1), flat iron for racks (6) arranged on the front plate (1), and flat iron for grating rulers (7) arranged on the front plate (1). The flat iron for racks (6) and flat iron for grating rulers (7) are arranged between the flat iron for guide rails (5) at the upper and lower ends. The flat iron for guide rails (5), flat iron for racks (6), and flat iron for grating rulers (7) are fixedly installed on the front plate (1).

2. The welded crossbeam of a gantry machining center according to claim 1, characterized in that, A plurality of longitudinal stiffeners (8) are provided between the top plate (3) and the bottom plate (4), and the longitudinal stiffeners (8) are fixedly installed between the top plate (3) and the bottom plate (4).

3. The welded crossbeam of a crane-type gantry machining center according to claim 2, characterized in that, The top plate (3), bottom plate (4), front plate (1), and back plate (2) are also provided with several transverse stiffeners (9), and the longitudinal stiffeners (8) are provided with multiple process grooves (10) around their perimeter for installing the transverse stiffeners (9).

4. The welded crossbeam of a crane-type gantry machining center according to claim 1, characterized in that, The base plate (4) includes a fixing plate (41) disposed on the left and right sides below the front plate (1) and the back plate (2), and an arc plate (42) disposed between the two fixing plates (41). The two ends of the arc plate (42) are fixedly connected to the fixing plate (41).

5. The welded crossbeam of a crane-type gantry machining center according to claim 1, characterized in that, The back plate (2) is provided with several threading holes (11).

6. The welded crossbeam of a crane-type gantry machining center according to claim 1, characterized in that, The front plate (1) is provided with lifting holes (12) on the left and right sides.

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