Saddle structure of gantry machining center

Abstract

The utility model discloses a sliding saddle structure of a gantry machining center, and relates to the technical field of gantry machine tools, in particular to the sliding saddle structure of the gantry machining center, which comprises a cross beam, a sliding saddle, a sliding guide rail arranged on the cross beam and used for guiding the sliding saddle, and a threaded driving rod arranged on the cross beam and used for driving the sliding saddle to move, sliding guide rails are fixedly installed on the top and the side wall of the cross beam, a limiting reinforcing plate is fixedly connected to the center of the side wall of the cross beam, a sliding block sleeved with the threaded driving rod in a threaded mode is fixed to the middle of the side wall of the sliding saddle, and the sliding block is located in the middle of the limiting reinforcing plate and makes contact with the limiting reinforcing plate. According to the sliding saddle structure of the gantry machining center, the saddle seat is arranged on the sliding saddle, a structure half-wrapping the cross beam is formed, the structural rigidity is good, stable supporting can be well provided, and sliding of the sliding saddle can be supported again under the interaction of the limiting reinforcing plate and the sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry machine tools, in particular to a sliding saddle structure of a gantry machining center. Background Art

[0002] Gantry CNC machine tools, also known as gantry machining centers, are milling machines with portal frames and horizontal long beds. Gantry CNC machine tools can use one or more milling cutters to process workpieces at the same time. Their processing accuracy and production efficiency are relatively high. They are suitable for processing the plane slopes 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 change 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 according to different processes, and can continuously complete drilling, boring, milling, tapping and other processes. The processing shape is relatively complex and the precision requirements are relatively high. Most traditional gantries use T-type ram structures. Due to the heavy components assembled on the saddle, the friction heat generated when it slides relative to the ram and the crossbeam is not easy to dissipate, which easily leads to the degradation of its overall static and dynamic performance due to thermal deformation of the saddle, and then causes the equipment processing accuracy to decrease. For this reason, we propose a saddle structure for gantry machining centers. Utility Model Content

[0003] The utility model provides a sliding saddle structure of a gantry machining center, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a saddle structure of a gantry machining center, including a crossbeam and a saddle, a sliding guide rail for guiding the saddle is arranged on the crossbeam, and a threaded driving rod for driving the saddle to move is installed on the crossbeam, the top and side walls of the crossbeam are fixedly installed with the sliding guide rail, and a limiting reinforcement plate is fixedly connected to the center of the side wall of the crossbeam, a sliding block threadedly fitted with the threaded driving rod is fixed in the middle of the side wall of the saddle, the sliding block is located in the middle of the limiting reinforcement plate and contacts with the limiting reinforcement plate, and a cooling fan is fixedly installed on the top of the saddle, and a surrounding cooling channel is opened inside the saddle.

[0005] Optionally, a saddle corresponding to the sliding guide rail is fixed on the sliding saddle, and the saddle is movably mounted on the sliding guide rail.

[0006] Optionally, the heat dissipation channel includes a first heat dissipation connection cavity, the first heat dissipation connection cavity is adjacent to the saddle, and a through hole is opened between the two first heat dissipation connection cavities and the saddle, and the first heat dissipation connection cavity is connected to the saddle through the through hole.

[0007] Optionally, a first connecting passage is provided in the saddle, and the two first heat dissipation connecting cavities are connected via the first connecting passage.

[0008] Optionally, the heat dissipation channel also includes a second heat dissipation connection cavity, which is opened inside the saddle, and a through groove is opened between the second heat dissipation connection cavity and the first heat dissipation connection cavity at one end, and the second heat dissipation connection cavity is connected to the first heat dissipation connection cavity through the through groove.

[0009] Optionally, a heat dissipation port connected to the second heat dissipation connection cavity is provided on the inner wall of the saddle, and a second connection passage is provided on the saddle, and the two second heat dissipation connection cavities are connected together through the second connection passage.

[0010] Optionally, a heat dissipation outlet cavity is provided on the saddle, and a heat dissipation outlet connected to the outer side of the saddle is provided on the heat dissipation outlet cavity, and the heat dissipation outlet cavity is connected to the second connecting passage.

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

[0012] 1. The saddle structure of the gantry machining center forms a semi-enclosed structure for the crossbeam through the saddle seat arranged on the saddle. The structure has good rigidity and can provide stable support. In addition, under the interaction of the limiting reinforcement plate and the sliding block, the sliding of the saddle can be supported again, thereby making the sliding of the saddle more stable.

[0013] 2. The saddle structure of the gantry machining center, through the setting of the first heat dissipation connection cavity and the second heat dissipation connection cavity, and through the connection of the first connection passage and the second heat dissipation connection cavity, can simultaneously perform air cooling on the relative sliding parts of the crossbeam and the saddle and the relative sliding parts of the saddle and the ram, and can complete the three-dimensional surround air cooling of the saddle through a heat dissipation fan, thereby saving more energy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic structural diagram of a cross-section view of the connection between the cross beam and the sliding saddle of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the sliding saddle connection of the utility model;

[0017] Figure 4 This is a structural schematic diagram of the second heat dissipation connection cavity of the utility model;

[0018] Figure 5 This is a structural schematic diagram of the second connecting passage connection of the utility model.

[0019] In the figure: 1. crossbeam; 2. sliding saddle; 3. sliding guide rail; 4. heat dissipation fan; 5. threaded drive rod; 6. limiting reinforcement plate; 7. sliding block; 8. heat dissipation port; 9. heat dissipation outlet cavity; 10. heat dissipation outlet; 11. first heat dissipation connection cavity; 12. first connection passage; 13. saddle; 14. second connection passage; 15. second heat dissipation connection cavity. 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] See also Figures 1 to 5 A saddle structure of a gantry machining center includes a crossbeam 1 and a saddle 2. A sliding guide rail 3 for guiding the saddle 2 is arranged on the crossbeam 1. Under the action of the sliding guide rail 3, the saddle 2 can move along a fixed track, and a ram is installed in the middle of the saddle 2, and a threaded driving rod 5 for driving the saddle 2 to move is installed on the crossbeam 1. The top and side walls of the crossbeam 1 are fixedly installed with the sliding guide rail 3. Through the saddle seat 13 arranged on the saddle 2, a semi-enclosed structure of the crossbeam 1 is formed. The structural rigidity is good and stable support can be provided well. Furthermore, a limiting reinforcing plate 6 is fixedly connected to the center of the side wall of the crossbeam 1. The middle of the side wall of the saddle 2 A sliding block 7 is fixedly provided which is threadedly mounted on the threaded driving rod 5. When the threaded driving rod 5 rotates, the sliding block 7 can drive the saddle 2 to slide. The sliding block 7 is located in the middle of the limiting reinforcing plate 6 and is in contact with the limiting reinforcing plate 6. Under the joint limitation of the limiting reinforcing plate 6 and the sliding block 7, the sliding between the crossbeam 1 and the saddle 2 is more stable. At the same time, a heat dissipation fan 4 is fixedly installed on the top of the saddle 2, and a surrounding heat dissipation channel is opened inside the saddle 2. The heat dissipation fan 4 is used to blow air into the heat dissipation channel, so that the sliding part between the saddle 2 and the crossbeam 1 and the sliding part between the saddle 2 and the ram can be cooled at the same time.

[0022] See also Figures 1 to 5 A saddle 13 corresponding to the sliding guide rail 3 is fixed on the sliding saddle 2, and the saddle 13 is movably mounted on the sliding guide rail 3. By mounting the saddle 13, the relative movement between the crossbeam 1 and the sliding saddle 2 can be limited.

[0023] See also Figures 1 to 5The heat dissipation channel includes a first heat dissipation connection cavity 11, which is adjacent to the saddle 13, and a through hole is opened between the two first heat dissipation connection cavities 11 and the saddle 13, so that the heat can be dissipated between the saddle 13 and the sliding guide rail 3, thereby ensuring the movement accuracy. The first heat dissipation connection cavity 11 is connected with the saddle 13 through the through hole.

[0024] See also Figures 1 to 5 A first connecting passage 12 is provided in the saddle 2 , and the two first heat dissipation connecting cavities 11 are connected via the first connecting passage 12 . Through the connection of the first connecting passage 12 , the first heat dissipation connecting cavities 11 can be connected.

[0025] See also Figures 1 to 5 The heat dissipation channel also includes a second heat dissipation connection cavity 15, which is opened inside the saddle 2. A through groove is opened between the two second heat dissipation connection cavities 15 and the first heat dissipation connection cavity 11 at one end, so that the first heat dissipation connection cavity 11 and the second heat dissipation connection cavity 15 can be connected. The two second heat dissipation connection cavities 15 are connected to the first heat dissipation connection cavity 11 through the through groove, so that they can be connected to each other, so that they can be ventilated smoothly.

[0026] See also Figures 1 to 5 The inner wall of the saddle 2 is provided with a heat dissipation port 8 connected with the second heat dissipation connection cavity 15. Through the heat dissipation port 8, the sliding part between the saddle 2 and the ram can be cooled by air, and a second connection passage 14 is provided on the saddle 2. The two second heat dissipation connection cavities 15 are connected together through the second connection passage 14, so that the second heat dissipation connection cavities 15 can be ventilated smoothly.

[0027] See also Figures 1 to 5 A heat dissipation air outlet cavity 9 is provided on the saddle 2, and a heat dissipation outlet 10 connected to the outside of the saddle 2 is provided on the heat dissipation air outlet cavity 9. At the same time, the heat dissipation air outlet cavity 9 is connected to the second connecting passage 14, so that the blown air can be discharged smoothly, and then take away the hot air inside, thereby ensuring the heat dissipation effect.

[0028] In summary, when the saddle structure of the gantry machining center is in use, with the multiple sliding guide rails 3 and the saddle 13 installed, the saddle 2 can be stably moved on the beam 1, and a semi-enclosed structure can be formed between the saddle 13 and the sliding guide rail 3, so that the movement of the saddle 2 is more stable, and under the action of the heat dissipation fan 4, the first heat dissipation connection cavity 11 can be blown through the first connecting passage 12, and under the action of the through hole connected to the saddle 13 on the first heat dissipation connection cavity 11, the sliding part of the saddle 2 and the beam 1 can be timely cooled by air, and through the first heat dissipation connection cavity 11, air can be blown into the second heat dissipation connection cavity 15, and the sliding part of the slide pillow and the saddle 2 can be cooled by air through the heat dissipation port 8, and then enters the heat dissipation outlet cavity 9 through the second connecting passage 14, and finally the hot air is discharged through the heat dissipation outlet 10.

[0029] 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. Furthermore, 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.

[0030] 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 saddle structure of a gantry machining center, comprising a crossbeam (1) and a saddle (2), wherein a sliding guide rail (3) for guiding the saddle (2) is arranged on the crossbeam (1), and a threaded driving rod (5) for driving the saddle (2) to move is installed on the crossbeam (1), characterized in that: The top and side walls of the crossbeam (1) are fixedly mounted with sliding guide rails (3), and a limiting reinforcement plate (6) is fixedly connected to the center of the side wall of the crossbeam (1). A sliding block (7) threadedly mounted with a threaded driving rod (5) is fixed in the middle of the side wall of the slide saddle (2). The sliding block (7) is located in the middle of the limiting reinforcement plate (6) and is in contact with the limiting reinforcement plate (6). At the same time, a heat dissipation fan (4) is fixedly mounted on the top of the slide saddle (2), and a surrounding heat dissipation channel is opened inside the slide saddle (2).

2. The saddle structure of a gantry machining center according to claim 1, characterized in that: A saddle (13) corresponding to the sliding guide rail (3) is fixed on the sliding saddle (2), and the saddle (13) is movably sleeved on the sliding guide rail (3).

3. The saddle structure of a gantry machining center according to claim 1, characterized in that: The heat dissipation channel comprises a first heat dissipation connection cavity (11), the first heat dissipation connection cavity (11) is adjacent to the saddle (13), and a through hole is provided between the two first heat dissipation connection cavities (11) and the saddle (13), and the first heat dissipation connection cavity (11) and the saddle (13) are connected through the through hole.

4. The saddle structure of a gantry machining center according to claim 3, characterized in that: A first connecting passage (12) is provided in the sliding saddle (2), and the two first heat dissipation connecting cavities (11) are connected via the first connecting passage (12).

5. The saddle structure of a gantry machining center according to claim 4, characterized in that: The heat dissipation channel further comprises a second heat dissipation connection cavity (15), the second heat dissipation connection cavity (15) being arranged inside the slide saddle (2), a through groove being arranged between the second heat dissipation connection cavity (15) and the first heat dissipation connection cavity (11) at one end thereof, and the second heat dissipation connection cavity (15) and the first heat dissipation connection cavity (11) being connected via the through groove.

6. The saddle structure of a gantry machining center according to claim 5, characterized in that: The inner wall of the slide saddle (2) is provided with a heat dissipation port (8) connected to the second heat dissipation connection cavity (15), and a second connection passage (14) is provided on the slide saddle (2), and the two second heat dissipation connection cavities (15) are connected together through the second connection passage (14).

7. The saddle structure of a gantry machining center according to claim 6, characterized in that: The slide saddle (2) is provided with a heat dissipation outlet cavity (9), and a heat dissipation outlet (10) connected to the outside of the slide saddle (2) is provided on the heat dissipation outlet cavity (9), and the heat dissipation outlet cavity (9) is connected to the second connection passage (14).

Images