Gantry machining center beam

Abstract

The utility model discloses a gantry machining center cross beam which comprises a gantry cross rod, the two ends of the gantry cross rod are fixedly connected with installation blocks, the gantry cross rod is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first threaded rod, and the first threaded rod penetrates through the gantry cross rod and is rotationally connected with the gantry cross rod. The outer wall of the first threaded rod is sleeved with a sliding block in threaded connection with the first threaded rod, the outer wall of the sliding block is slidably connected with a lifting plate, the top of the lifting plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a second threaded rod, and the second threaded rod penetrates through the lifting plate and is rotationally connected with the lifting plate. The second threaded rod penetrates through the sliding block and is in threaded connection with the sliding block, and the outer wall of the lifting plate is fixedly connected with a mounting plate. Sliding friction is converted into rolling friction, friction force can be reduced, machining precision is guaranteed, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crossbeams, in particular to a crossbeam for a gantry machining center. Background Art

[0002] A gantry machining center is a machining center in which the spindle axis is set perpendicular to the worktable. It is mainly suitable for machining large parts. A crossbeam is set on the gantry machining center.

[0003] The existing crossbeam is generally arranged as a guide rail structure, in which a slider slides on the guide rail to realize the movement and adjustment of the processing machine. However, the friction between the slider and the guide rail is sliding friction, and the resistance of sliding friction is relatively large. When sliding for a long time, friction will occur between the slider and the guide rail, resulting in a large deviation in subsequent processing, which affects the processing accuracy. In order to solve the above problems, a gantry machining center crossbeam is proposed in the present application. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a gantry machining center crossbeam, which can reduce friction, ensure machining accuracy and extend the service life of the device by converting sliding friction into rolling friction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A crossbeam of a gantry machining center comprises a gantry crossbar, both ends of the gantry crossbar are fixedly connected with mounting blocks, a first motor is fixedly connected to the gantry crossbar, an output end of the first motor is fixedly connected with a first threaded rod, the first threaded rod penetrates the gantry crossbar and is rotatably connected thereto, an outer wall of the first threaded rod is sleeved with a slider threadedly connected thereto, a lifting plate is slidably connected to the outer wall of the slider, a second motor is fixedly connected to the top of the lifting plate, a second threaded rod is fixedly connected to the output end of the second motor, the second threaded rod penetrates the lifting plate and is rotatably connected thereto, the second threaded rod penetrates the slider and is threadedly connected thereto, a mounting plate is fixedly connected to the outer wall of the lifting plate, a plurality of first grooves are provided at the upper and lower ends of the slider, the inner wall of each of the first grooves is rotatably connected with a first rotating shaft, the outer wall of each of the first rotating shafts is fixedly connected with a first rotating wheel, second grooves are provided at the left and right ends of the slider, the inner wall of each of the second grooves is rotatably connected with a second rotating shaft, and the outer wall of each of the second rotating shafts is fixedly connected with a second rotating wheel.

[0007] Preferably, each of the mounting blocks is penetrated by four first mounting holes.

[0008] Preferably, a mounting groove is provided on the gantry cross bar, and the first motor is disposed in the mounting groove and fixedly connected to the inner wall thereof.

[0009] Preferably, a first sliding groove is provided on the gantry cross bar, and the outer wall of the first rotating wheel is arranged to abut against the inner wall of the first sliding groove.

[0010] Preferably, a second sliding groove is provided on the lifting plate, and the outer wall of the second rotating wheel is arranged to abut against the inner wall of the second sliding groove.

[0011] Preferably, four second mounting holes are formed through the mounting plate, the positions of the four second mounting holes are distributed in a rectangular shape, and the inner wall of each second mounting hole is provided with an internal thread.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The output end of the first motor drives the first threaded rod to rotate, so that the slider slides in the first sliding groove, thereby driving the lifting plate, the mounting plate and the processing machine installed on the mounting plate to move in the X-axis direction. When moving, the rolling setting of the first rotating wheel and the inner wall of the first sliding groove can convert traditional sliding friction into rotational friction, reduce friction resistance, ensure processing accuracy, and extend the service life of the device.

[0014] 2. Start the second motor, and drive the second threaded rod to rotate through the output end of the second motor, so that the lifting plate, the mounting plate and the processing machine installed on the mounting plate move in the Y-axis direction. During the movement, the rolling setting between the slider and the inner wall of the second sliding groove can convert the traditional sliding friction into rotational friction, thereby reducing the friction resistance, ensuring the processing accuracy, and extending the service life of the device.

[0015] In summary, by converting sliding friction into rolling friction, the friction force can be reduced, the processing accuracy is guaranteed, and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a rear view structural diagram of a crossbeam of a gantry machining center proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the front view structure of a crossbeam of a gantry machining center proposed by the utility model;

[0018] Figure 3 The utility model is a partial structural schematic diagram of a gantry machining center crossbeam.

[0019] In the figure: 1 gantry cross bar, 2 mounting block, 3 first mounting hole, 4 first motor, 5 first threaded rod, 6 slider, 7 lifting plate, 8 second motor, 9 second threaded rod, 10 mounting plate, 11 second mounting hole, 12 first groove, 13 first rotating shaft, 14 first rotating wheel, 15 second groove, 16 second rotating shaft, 17 second rotating wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 A gantry machining center crossbeam includes a gantry cross bar 1, both ends of the gantry cross bar 1 are fixedly connected with mounting blocks 2, each mounting block 2 is penetrated with four first mounting holes 3, and the gantry cross bar 1 can be installed on the column by the cooperation of bolts and the first mounting holes 3 to complete the fixation of the gantry cross bar 1.

[0022] A first motor 4 is fixedly connected to the gantry crossbar 1, and a mounting groove is provided on the gantry crossbar 1. The first motor 4 is arranged in the mounting groove and is fixedly connected to its inner wall. A first threaded rod 5 is fixedly connected to the output end of the first motor 4. The first threaded rod 5 penetrates the gantry crossbar 1 and is rotatably connected thereto. The outer wall of the first threaded rod 5 is sleeved with a slider 6 threadedly connected thereto. A lifting plate 7 is slidably connected to the outer wall of the slider 6. A second motor 8 is fixedly connected to the top of the lifting plate 7. A second threaded rod 9 is fixedly connected to the output end of the second motor 8. The second threaded rod 9 penetrates the lifting plate 7 and is rotatably connected thereto. The second threaded rod 9 penetrates the slider 6 and is threadedly connected thereto. A mounting plate 10 is fixedly connected to the outer wall of the lifting plate 7. Four second mounting holes 11 are penetrated on the mounting plate 10. The positions of the four second mounting holes 11 are distributed in a rectangular shape. The inner wall of each second mounting hole 11 is provided with an internal thread. The processing machine can be mounted on the mounting plate 10 by the cooperation of the bolt and the second mounting hole 11. The processing machine can be adjusted in the X-axis and Y-axis directions by the first motor 4 and the second motor 8.

[0023] A plurality of first grooves 12 are provided at the upper and lower ends of the slider 6, the inner wall of each first groove 12 is rotatably connected to a first rotating shaft 13, the outer wall of each first rotating shaft 13 is fixedly connected to a first rotating wheel 14, and a first sliding groove is provided on the gantry cross bar 1, the outer wall of the first rotating wheel 14 is arranged to abut against the inner wall of the first sliding groove, and by arranging the first rotating wheel 14, sliding friction can be converted into rolling friction, thereby reducing friction.

[0024] A second groove 15 is provided at both left and right ends of the slider 6, the inner wall of each second groove 15 is rotatably connected to a second rotating shaft 16, the outer wall of each second rotating shaft 16 is fixedly connected to a second rotating wheel 17, and a second sliding groove is provided on the lifting plate 7, the outer wall of the second rotating wheel 17 is arranged to abut against the inner wall of the second sliding groove, and by providing the second rotating wheel 17, sliding friction can be converted into rolling friction, thereby reducing friction.

[0025] In the utility model, the first motor 4 is started, and the first threaded rod 5 is driven to rotate through the output end of the first motor 4, so that the slider 6 slides in the first sliding groove, thereby driving the lifting plate 7, the mounting plate 10 and the processing machine installed on the mounting plate 10 to move, and the first rotating wheel 14 and the inner wall rolling setting of the first sliding groove during the movement can convert the traditional sliding friction into rotational friction, thereby reducing the frictional resistance; the second motor 8 is started, and the second threaded rod 9 is driven to rotate through the output end of the second motor 8, so that the lifting plate 7, the mounting plate 10 and the processing machine installed on the mounting plate 10 are moved, and the sliding block 6 and the inner wall rolling setting of the second sliding groove during the movement can convert the traditional sliding friction into rotational friction, thereby reducing the frictional resistance; the first motor 4 is used to adjust in the X-axis direction, and the second motor 8 is used to adjust in the Y-axis direction to meet different usage needs.

[0026] The utility model can reduce the friction force by converting sliding friction into rolling friction, thereby solving the problem that the sliding friction resistance in the prior art is relatively large. When sliding for a long time, friction will occur between the slider and the guide rail, resulting in large deviation in subsequent processing, which affects the processing accuracy.

Claims

1. A gantry machining center crossbeam, comprising a gantry crossbar (1), characterized in that: Both ends of the gantry cross bar (1) are fixedly connected to mounting blocks (2); a first motor (4) is fixedly connected to the gantry cross bar (1); an output end of the first motor (4) is fixedly connected to a first threaded rod (5); the first threaded rod (5) passes through the gantry cross bar (1) and is rotatably connected thereto; an outer wall of the first threaded rod (5) is sleeved with a slider (6) threadedly connected thereto; an outer wall of the slider (6) is slidably connected to a lifting plate (7); a second motor (8) is fixedly connected to the top of the lifting plate (7); an output end of the second motor (8) is fixedly connected to a second threaded rod (9); the second threaded rod (9) passes through the lifting plate (7) and is rotatably connected thereto The second threaded rod (9) passes through the slider (6) and is threadedly connected thereto; the outer wall of the lifting plate (7) is fixedly connected to the mounting plate (10); the upper and lower ends of the slider (6) are provided with a plurality of first grooves (12); the inner wall of each of the first grooves (12) is rotatably connected to a first rotating shaft (13); the outer wall of each of the first rotating shafts (13) is fixedly connected to a first rotating wheel (14); the left and right ends of the slider (6) are provided with second grooves (15); the inner wall of each of the second grooves (15) is rotatably connected to a second rotating shaft (16); and the outer wall of each of the second rotating shafts (16) is fixedly connected to a second rotating wheel (17).

2. A gantry machining center crossbeam according to claim 1, characterized in that: Each of the mounting blocks (2) is provided with four first mounting holes (3).

3. A gantry machining center crossbeam according to claim 1, characterized in that: The gantry crossbar (1) is provided with a mounting groove, and the first motor (4) is arranged in the mounting groove and fixedly connected to the inner wall thereof.

4. A gantry machining center crossbeam according to claim 1, characterized in that: The gantry crossbar (1) is provided with a first sliding groove, and the outer wall of the first rotating wheel (14) is arranged to abut against the inner wall of the first sliding groove.

5. The cross beam of a gantry machining center according to claim 1, characterized in that: The lifting plate (7) is provided with a second sliding groove, and the outer wall of the second rotating wheel (17) is arranged to abut against the inner wall of the second sliding groove.

6. The cross beam of a gantry machining center according to claim 1, characterized in that: Four second mounting holes (11) are formed through the mounting plate (10), the positions of the four second mounting holes (11) are distributed in a rectangular shape, and the inner wall of each second mounting hole (11) is provided with an internal thread.

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