A gantry milling ground rail

Abstract

The utility model discloses a kind of gantry milling ground rails, including base, the top of the base is equipped with sliding plate, the top of the sliding plate is fixedly connected with moving frame, the top of the base is fixedly connected with two symmetrically arranged guide rails, the bottom of the sliding plate is equipped with four moving mechanisms, the top of the sliding plate is fixedly connected with motor, the output end of the motor is fixedly connected with transmission rod, the transmission rod is through sliding plate and is rotatably connected with it, the bottom of the transmission rod is fixedly connected with gear wheel.The utility model provides multidimension guidance and support for sliding plate by first rotating wheel, second rotating wheel and slider collaborative work;This composite structure effectively avoids the disadvantages of single orientation, when long time operation or carrying heavy object, can maintain good stability, reduce shaking and deviation, significantly improve the orientation accuracy, and then improve workpiece machining precision, while reducing the wear of orientation component, reduce equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of ground rail technology, and in particular to a gantry milling ground rail. Background Technology

[0002] As a key piece of equipment for machining large workpieces, the gantry milling machine's ground rail system plays an important role in supporting the worktable and enabling workpiece displacement.

[0003] Existing ground rail moving mechanisms mostly adopt a single guiding structure, which is prone to shaking or deviation when running for a long time or carrying heavy objects. For example, some structures rely only on simple rollers in contact with the rail, lacking multi-dimensional guiding support, resulting in poor lateral stability during movement, especially when changing direction, which can easily cause impact and affect the machining accuracy of the workpiece. To solve the above problems, this application proposes a gantry milling ground rail. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gantry milling track. Through the coordinated work of the first rotating wheel, the second rotating wheel, and the slider, it provides multi-dimensional guidance and support for the sliding plate. This composite structure effectively avoids the drawbacks of single guidance and maintains good stability during long-term operation or when carrying heavy loads, reducing swaying and offset, significantly improving guidance accuracy, thereby improving workpiece processing accuracy, while reducing wear on guide components and reducing equipment maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gantry milling machine guide includes a base, a sliding plate on top of the base, a movable frame fixedly connected to the top of the sliding plate, two symmetrically arranged guide rails fixedly connected to the top of the base, four moving mechanisms at the bottom of the sliding plate, a motor fixedly connected to the top of the sliding plate, a transmission rod fixedly connected to the output end of the motor, the transmission rod passing through the sliding plate and rotatably connected thereto, a gear fixedly connected to the bottom of the transmission rod, a rack plate fixedly connected to the top of the base, the gear meshing with the rack plate, and two mounting blocks fixedly connected to the top of the base, each mounting block having a contact switch fixedly connected to its opposite end.

[0007] Preferably, the moving mechanism includes a support leg fixedly connected to the bottom of the sliding plate, and each support leg is rotatably connected to a first rotating wheel, the bottom of the first rotating wheel being disposed against the top of the base.

[0008] Preferably, each of the two leftmost support legs is rotatably connected to a second rotating wheel, and the two second rotating wheels are respectively disposed against the outer wall of their corresponding guide rails.

[0009] Preferably, each of the two pairs of support legs on the right side is fixedly connected to a slider, and each slider is sleeved on the outer wall of the guide rail and slidably connected to it.

[0010] Preferably, the rack plate has a plurality of teeth at one end near the gear, and the plurality of teeth engage with the outer wall of the gear.

[0011] Preferably, the height of the contact switch is flush with the height of the sliding plate.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. This utility model employs a multi-wheel combination moving mechanism, including a first rotating wheel, a second rotating wheel, and a slider working together to provide multi-dimensional guidance and support for the sliding plate. The first rotating wheel rolls on top of the base, reducing sliding friction; the second rotating wheel abuts against the outer wall of the guide rail, enhancing lateral stability; the sliding cooperation between the slider and the guide rail precisely limits the movement trajectory. This composite structure effectively avoids the drawbacks of single guidance, maintaining good stability during long-term operation or when carrying heavy loads, reducing swaying and deviation, significantly improving guidance accuracy, thereby improving workpiece processing accuracy, while reducing wear on guiding components and reducing equipment maintenance costs.

[0014] 2. By introducing a contact switch as an automated positioning device, when the sliding plate moves to the set position and contacts the contact switch, the motor automatically cuts off the power, achieving precise positioning. This innovative design completely changes the outdated positioning method that relies on manual marking or mechanical limit blocks, avoiding human error. When changing workpieces or adjusting processing positions, frequent manual calibration is unnecessary, greatly improving positioning efficiency and accuracy, meeting the needs of mass production and high-precision processing, and significantly increasing production efficiency.

[0015] In summary, the first rotating wheel, the second rotating wheel, and the slider work together to provide multi-dimensional guidance and support for the sliding plate. This composite structure effectively avoids the drawbacks of single guidance and maintains good stability during long-term operation or when carrying heavy loads, reducing swaying and deviation, significantly improving guidance accuracy, thereby improving workpiece processing accuracy, while reducing wear on guide components and reducing equipment maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gantry milling ground rail proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the first structure of a gantry milling ground rail proposed in this utility model;

[0018] Figure 3This is a schematic diagram of the second structure of a gantry milling ground rail proposed in this utility model.

[0019] In the diagram: 1. Base, 2. Sliding plate, 3. Moving frame, 4. Guide rail, 5. Support leg, 6. First rotating wheel, 7. Second rotating wheel, 8. Slider, 9. Motor, 10. Gear, 11. Rack plate, 12. Mounting block, 13. Contact switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A gantry milling machine guide rail includes a base 1, a sliding plate 2 above the base 1, the sliding plate 2 can slide along the surface of the base 1, a movable frame 3 is fixedly connected to the top of the sliding plate 2, a worktable for placing workpieces is installed on the top of the movable frame 3, and two symmetrically arranged guide rails 4 are fixedly connected to the top of the base 1, the guide rails 4 provide guidance for the movement of the sliding plate 2.

[0022] The bottom of the sliding plate 2 is provided with four moving mechanisms. The moving mechanisms support the sliding plate 2 and enable smooth movement. The moving mechanisms include support legs 5 that are fixedly connected to the bottom of the sliding plate 2. Each support leg 5 is rotatably connected with a first rotating wheel 6. The first rotating wheel 6 reduces sliding friction resistance by rolling. The bottom of the first rotating wheel 6 is set against the top of the base 1.

[0023] The two leftmost support legs 5 are each rotatably connected to a second rotating wheel 7. The second rotating wheel 7 assists in guiding and prevents the sliding plate 2 from tilting to the side. The two second rotating wheels 7 are respectively set to abut against the outer wall of their corresponding guide rails 4. The two pairs of support legs 5 on the right are each fixedly connected to a slider 8. The slider 8 cooperates with the guide rail 4 to limit the movement trajectory of the sliding plate 2. Each slider 8 is sleeved on the outer wall of the guide rail 4 and slidably connected to it.

[0024] A motor 9 is fixedly connected to the top of the sliding plate 2. A transmission rod is fixedly connected to the output end of the motor 9. The transmission rod passes through the sliding plate 2 and is rotatably connected to it. A gear 10 is fixedly connected to the bottom of the transmission rod. A rack plate 11 is fixedly connected to the top of the base 1. The gear 10 meshes with the rack plate 11. The meshing of the rack plate 11 with the gear 10 realizes power transmission. The rack plate 11 has multiple teeth at the end near the gear 10. The multiple teeth all cooperate with the outer wall of the gear 10. Two mounting blocks 12 are fixedly connected to the top of the base 1. A contact switch 13 is fixedly connected to the opposite end of the two mounting blocks 12. In this application, the output speed of the motor 9 is relatively slow to avoid damage to the contact switch 13. The contact switch 13 senses the position of the sliding plate 2 and controls the motor 9 to turn off, so that the sliding plate 2 stops at two fixed positions each time. One position is for loading and unloading workpieces, and the other position is for processing workpieces. The height of the contact switch 13 is flush with the height of the sliding plate 2.

[0025] In this invention, a workbench is installed on the top of the movable frame 3. The workpiece placed on the workbench is processed by an external gantry machining equipment. After processing, the motor 9 is started, and the output end of the motor 9 drives the gear 10 to rotate. The meshing of the gear 10 and the rack plate 11 drives the sliding plate 2 and the movable frame 3 to slide on the base 1. During this process, the slider 8 slides on the guide rail 4, and the rolling of the first rotating wheel 6 and the second rotating wheel 7 ensures that the sliding plate 2 and the movable frame 3 move smoothly until the sliding plate 2 contacts the contact switch 13. At this time, the motor 9 is de-energized, so that the sliding plate 2 and the movable frame 3 remain stationary, and the processed workpiece is removed. After replacing the workpiece, the motor 9 is started and its output end is rotated in the opposite direction, so that the sliding plate 2 and the movable frame 3 move to the other end until the sliding plate 2 contacts another contact switch 13. The motor 9 is then de-energized, so that the sliding plate 2 and the movable frame 3 remain stationary, so as to stably process the workpiece.

Claims

1. A gantry milling ground rail, comprising a base (1), characterized in that, A sliding plate (2) is provided above the base (1). A movable frame (3) is fixedly connected to the top of the sliding plate (2). Two symmetrically arranged guide rails (4) are fixedly connected to the top of the base (1). Four moving mechanisms are provided at the bottom of the sliding plate (2). A motor (9) is fixedly connected to the top of the sliding plate (2). A transmission rod is fixedly connected to the output end of the motor (9). The transmission rod passes through the sliding plate (2) and is rotatably connected to it. A gear (10) is fixedly connected to the bottom of the transmission rod. A rack plate (11) is fixedly connected to the top of the base (1). The gear (10) meshes with the rack plate (11). Two mounting blocks (12) are fixedly connected to the top of the base (1). A contact switch (13) is fixedly connected to the opposite ends of the two mounting blocks (12).

2. The gantry milling track according to claim 1, characterized in that, The moving mechanism includes a support leg (5) fixedly connected to the bottom of the sliding plate (2), and a first rotating wheel (6) is rotatably connected to each support leg (5). The bottom of the first rotating wheel (6) is abutted against the top of the base (1).

3. A gantry milling track according to claim 2, characterized in that, The two leftmost support legs (5) are each rotatably connected to a second rotating wheel (7), and the two second rotating wheels (7) are respectively set to abut against the outer wall of their corresponding guide rails (4).

4. A gantry milling track according to claim 2, characterized in that, Each of the two pairs of support legs (5) on the right side is fixedly connected with a slider (8), and each slider (8) is sleeved on the outer wall of the guide rail (4) and slidably connected to it.

5. A gantry milling track according to claim 1, characterized in that, The rack plate (11) has a plurality of teeth at one end near the gear (10), and the plurality of teeth are engaged with the outer wall of the gear (10).

6. A gantry milling track according to claim 1, characterized in that, The height of the contact switch (13) is flush with the height of the sliding plate (2).

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