A mobile gantry for a gantry milling machine

Abstract

The utility model relates to the gantry field technical field of planer type milling machine, a mobile gantry for planer type milling machine, including slide rail and fixed hole, the end of slide rail is processed with fixed hole, the inner wall of slide rail is linked with first sliding block slidingly, the inner wall of first sliding block is linked with first reciprocating screw threadedly. Through first servo motor drive first reciprocating screw, first reciprocating screw drive first sliding block along slide rail sliding, realize X -direction adjustment, third servo motor drive second reciprocating screw, make second sliding block take crosspiece along support frame and move, complete Y -direction adjustment, second servo motor drive third reciprocating screw, let third sliding block take mounting frame along crosspiece and slide, reach Z -direction adjustment, satisfy complex processing demand, and the pulley auxiliary support guide in support mechanism, fixed sleeve and support frame bolt connection, cooperate fixed plate, promote overall firmness, avoid the influence precision when shaking of processing, realize the flexibility and stability of work.

Description

Technical Field

[0001] This utility model relates to the field of gantry milling machine technology, specifically a movable gantry for gantry milling machines. Background Technology

[0002] With the continuous advancement of manufacturing technology and the development of materials science, mobile gantry cranes are becoming lighter, more durable, and easier to operate. Mobile gantry cranes can also adapt to multi-process machining needs, such as boring, milling, and drilling, which makes them more flexible when handling complex workpieces.

[0003] For example, the movable gantry for gantry milling machines, authorized by publication number "CN223210873U," solves the problem of inconvenient operation of existing movable gantry for gantry milling machines. While these existing movable gantry for gantry milling machines have slide rails, sliders, and moving devices, the moving device relies solely on the sliding column to drive the casters, lacking a multi-directional adjustment structure. This results in weak adaptability to different machining scenarios. In terms of flexibility, the casters can only achieve basic movement, and the sliding column must be manually pressed to switch states; there is no automatic adjustment or rapid switching mechanism, leading to low operational efficiency. Regarding stability, although there are clamping plates for limiting movement, vibrations during hoisting can easily cause displacement of the sliding column. The fixing device relies solely on the cooperation of a rod and slot, resulting in insufficient support rigidity and potentially affecting machining accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing mobile gantry frames for gantry milling machines, which lack multi-directional adjustment structures, have insufficient support rigidity, and are poor in terms of flexibility and stability. Therefore, this invention proposes a mobile gantry frame for gantry milling machines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable gantry frame for a gantry milling machine, comprising a slide rail and a fixing hole, wherein the end of the slide rail is machined with a fixing hole, the inner wall of the slide rail is slidably connected to a first slider, the inner wall of the first slider is threadedly connected to a first reciprocating screw, the end of the first reciprocating screw is fixedly connected to a first servo motor, the outer wall of the first servo motor is threadedly connected to the slide rail, and a support mechanism is connected to the inner wall of the slide rail.

[0006] This setting: The first servo motor drives the first reciprocating screw to rotate, which in turn drives the first slider to slide stably along the slide rail, thereby realizing the overall movement and adjustment of the gantry frame in the direction of the slide rail.

[0007] Preferably, the support mechanism includes a pulley, the outer wall of the pulley is slidably connected to the slide rail, the outer wall of the pulley is rotatably connected to the support frame, the upper end of the support frame is threadedly connected to the fixing sleeve by bolts, and the outer wall of the fixing sleeve is fixedly connected to the fixing plate.

[0008] This feature: When the pulley slides within the slide rail, it provides auxiliary support and guidance to the support frame, reducing swaying during the movement of the support frame. The fixed sleeve is connected to the support frame by bolts, and the fixed plate and fixed sleeve are located at the upper end of the support frame to enhance stability and ensure the overall structural integrity of the support mechanism.

[0009] Preferably, the inner wall of the support frame is rotatably connected to the second reciprocating screw, and the outer wall of the second reciprocating screw is connected to a moving mechanism.

[0010] This setting allows the second reciprocating screw to rotate stably under the support of the support frame. Its outer wall thread structure can form a precise fit with the moving mechanism. Through its own rotation, it drives the moving mechanism to move smoothly along the length of the support frame, providing a power basis for the gantry frame to adjust its position in the direction perpendicular to the slide rail.

[0011] Preferably, the moving mechanism includes a second slider, the outer wall of the second slider is threadedly connected to a second reciprocating screw, the outer wall of the second slider is fixedly connected to a horizontal plate, and the outer wall of the horizontal plate is slidably connected to a mounting bracket.

[0012] This setting: The second slider is threadedly connected to the second reciprocating screw. When the second reciprocating screw rotates, the second slider can drive the horizontal plate to move stably along the support frame. The mounting frame slides on the outer wall of the horizontal plate, so that the mounting frame can be flexibly adjusted on the horizontal plate according to the processing requirements, further improving the gantry frame's adaptability to different processing positions.

[0013] Preferably, the inner wall of the mounting bracket is fixedly connected to the third slider, the inner wall of the third slider is threadedly connected to the third reciprocating screw, and the end of the third reciprocating screw is rotatably connected to the cross plate.

[0014] This setting: The threaded engagement between the third slider and the third reciprocating screw can convert the rotational motion of the third reciprocating screw into the linear motion of the mounting bracket along the horizontal plate. Through the rotational support of the third reciprocating screw at the end of the horizontal plate, the straightness and stability of the mounting bracket during movement are ensured, and the machining accuracy is avoided due to transmission offset.

[0015] Preferably, a second servo motor is fixedly connected to the outer wall of the cross plate, and the output shaft of the second servo motor is fixedly connected to a third reciprocating lead screw.

[0016] This setting: The second servo motor can provide stable power output, and its output shaft is directly fixedly connected to the third reciprocating screw, which can precisely drive the rotation of the third reciprocating screw. By controlling the forward and reverse rotation and speed of the second servo motor, the rotation angle and speed of the third reciprocating screw can be precisely controlled, thereby adjusting the moving distance and speed of the mounting bracket on the horizontal plate to meet the needs of fine adjustment of the mounting bracket position under different working conditions.

[0017] Preferably, the end of the second reciprocating screw is fixedly connected to the output shaft of the third servo motor, and the outer wall of the third servo motor is fixedly connected to the support frame.

[0018] This feature involves a third servo motor providing the driving force for the rotation of the second reciprocating screw. Its outer wall is fixedly connected to the support frame, ensuring the stability of the motor during operation and preventing vibration from affecting transmission accuracy. By controlling the operating status of the third servo motor, the rotation direction and speed of the second reciprocating screw can be precisely adjusted. This, in turn, controls the moving mechanism to drive the cross plate and mounting frame to achieve precise displacement along the support frame direction. This allows the gantry crane to quickly and accurately reach the designated processing position during machining, effectively improving overall processing efficiency and position control accuracy.

[0019] The present invention proposes a movable gantry for a gantry milling machine, which has the following advantages: A first servo motor drives a first reciprocating screw, which in turn drives a first slider to slide along a slide rail, achieving X-axis adjustment. A third servo motor drives a second reciprocating screw, causing a second slider with a cross plate to move along the support frame, achieving Y-axis adjustment. The second servo motor drives a third reciprocating screw, allowing a third slider with a mounting bracket to slide along the cross plate, achieving Z-axis adjustment. This meets complex machining requirements. Furthermore, the support mechanism includes pulleys for auxiliary support and guidance, and a fixed sleeve bolted to the support frame, along with a fixed plate, enhancing overall robustness and preventing shaking during machining from affecting accuracy, thus achieving both flexibility and stability in operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the central support structure and its combination; Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the middle sliding rail; Figure 4 for Figure 1 Schematic diagram of the central support structure; Figure 5 for Figure 2 Schematic diagram of the middle fixing sleeve and fixing plate structure; Figure 6 for Figure 1 Schematic diagram of China Mobile's organizational structure.

[0021] In the diagram: 1. Slide rail, 2. Fixing hole, 3. First slider, 4. First reciprocating screw, 5. First servo motor, 6. Support mechanism, 601. Pulley, 602. Support frame, 603. Fixing sleeve, 604. Fixing plate, 7. Second reciprocating screw, 8. Moving mechanism, 801. Second slider, 802. Horizontal plate, 803. Mounting bracket, 9. Third slider, 10. Third reciprocating screw, 11. Second servo motor, 12. Third servo motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: Please see Figure 1-6 In this embodiment, a movable gantry for a gantry milling machine includes a slide rail 1 and a fixing hole 2. The end of the slide rail 1 is machined with the fixing hole 2. The inner wall of the slide rail 1 is slidably connected to a first slider 3. The inner wall of the first slider 3 is threadedly connected to a first reciprocating screw 4. The end of the first reciprocating screw 4 is fixedly connected to a first servo motor 5. The outer wall of the first servo motor 5 is threadedly connected to the slide rail 1. A support mechanism 6 is connected to the inner wall of the slide rail 1.

[0023] The support mechanism 6 includes a pulley 601, the outer wall of which is slidably connected to the slide rail 1, and the outer wall of which is rotatably connected to the support frame 602. The upper end of the support frame 602 is threadedly connected to the fixing sleeve 603 by bolts. The outer wall of the fixing sleeve 603 is fixedly connected to the fixing plate 604, thereby improving the connection stability between the fixing plate 604 and the support frame 602 and preventing the support frame from tipping over due to excessive force during use. The first servo motor 5 drives the first reciprocating screw 4, which in turn drives the first slider 3 to slide along the slide rail 1, achieving X-axis adjustment. The third servo motor 12 drives the second reciprocating screw 7, causing the second slider 801 to move along the support frame 602 with the horizontal plate 802, achieving Y-axis adjustment. The second servo motor 11 drives the third reciprocating screw 10, causing the third slider 9 to slide along the horizontal plate 802 with the mounting bracket 803, achieving Z-axis adjustment. This meets the needs of complex processing. In addition, the pulley 601 in the support mechanism 6 provides auxiliary support and guidance. The fixed sleeve 603 is bolted to the support frame 602 and, together with the fixed plate 604, improves the overall robustness, avoids shaking during processing that affects accuracy, and achieves flexibility and stability in operation.

[0024] The inner wall of the support frame 602 is rotatably connected to the second reciprocating screw 7. The outer wall of the second reciprocating screw 7 is connected to a moving mechanism 8. The moving mechanism 8 includes a second slider 801. The outer wall of the second slider 801 is threadedly connected to the second reciprocating screw 7. The second slider 801 can slide smoothly along the inner wall of the support frame 602 under the drive of the second reciprocating screw 7. The fixed connection between its outer wall and the horizontal plate 802 ensures that there is no relative displacement between the two. The outer wall of the horizontal plate 802 is machined with a sliding groove that matches the mounting frame 803. The sliding groove on the outer wall of the horizontal plate 802 forms a double guide structure, which further improves the anti-torsion ability and motion accuracy of the mounting frame 803 when sliding, and avoids deviation or jamming when moving at high speed or bearing processing load. The outer wall of the second slider 801 is fixedly connected to the horizontal plate 802, and the outer wall of the horizontal plate 802 is slidably connected to the mounting frame 803.

[0025] The inner wall of the mounting bracket 803 is fixedly connected to the third slider 9. The inner wall of the third slider 9 is threadedly connected to the third reciprocating screw 10. The end of the third reciprocating screw 10 is rotatably connected to the horizontal plate 802. The outer wall of the horizontal plate 802 is fixedly connected to the second servo motor 11. The output shaft of the second servo motor 11 is fixedly connected to the third reciprocating screw 10. The end of the second reciprocating screw 7 is fixedly connected to the output shaft of the third servo motor 12. The outer wall of the third servo motor 12 is fixedly connected to the support bracket 602.

[0026] Working principle: Assembly process Basic slide rail installation: First, place slide rail 1 on a flat mounting surface. Then, use bolts to fasten slide rail 1 to the mounting surface through the fixing holes 2 at the end of slide rail 1, ensuring that slide rail 1 is horizontal and without deviation.

[0027] Assemble the first slider and drive assembly: embed the first slider 3 into the inner wall of the slide rail 1 so that the first slider 3 can slide smoothly along the slide rail 1; pass the first reciprocating screw 4 through the threaded hole in the inner wall of the first slider 3, fix the end of the first reciprocating screw 4 to the output shaft of the first servo motor 5, and then use bolts to lock the outer wall of the first servo motor 5 to the slide rail 1.

[0028] Support mechanism assembly: Install pulley 601 at the bottom of support frame 602, ensuring that pulley 601 can rotate flexibly; place the assembled support frame 602 into slide rail 1 through pulley 601, so that pulley 601 fits against the inner wall of slide rail 1; put fixing sleeve 603 on the upper end of support frame 602, and fix fixing sleeve 603 to support frame 602 with bolts. Fixing plate 604 has been pre-fixed to fixing sleeve 603, completing the support mechanism assembly.

[0029] Assembly of the moving mechanism and drive components: Install the second reciprocating screw 7 on the inner wall of the support frame 602 to enable stable rotation; fix the outer wall of the third servo motor 12 to the support frame 602, and connect the output shaft of the third servo motor 12 to the end of the second reciprocating screw 7; thread the second slider 801 to the second reciprocating screw 7, and fix the horizontal plate 802 to the outer wall of the second slider 801; fit the mounting bracket 803 onto the outer wall of the horizontal plate 802 to ensure that it can slide along the horizontal plate 802; fix the third slider 9 to the inner wall of the mounting bracket 803, and pass the third reciprocating screw 10 through the third slider 9 and rotatably connect it to the end of the horizontal plate 802; install the second servo motor 11 on the outer wall of the horizontal plate 802, and fix the output shaft of the second servo motor 11 to the end of the third reciprocating screw 10 to complete the overall assembly.

[0030] Usage Operation Adjustment along the slide rail: Start the first servo motor 5, the first servo motor 5 drives the first reciprocating screw 4 to rotate, the first reciprocating screw 4 drives the first slider 3 to slide along the slide rail 1, and then drives the entire gantry frame body to move along the slide rail 1. Control the start, stop and forward and reverse rotation of the first servo motor 5 according to the processing requirements to achieve precise position adjustment.

[0031] Adjustment along the support frame direction: Start the third servo motor 12, the third servo motor 12 drives the second reciprocating screw 7 to rotate, the second reciprocating screw 7 drives the second slider 801 to move along the support frame 602, the horizontal plate 802 moves with the second slider 801, thereby adjusting the position of the mounting frame 803 in this direction.

[0032] Adjustment along the horizontal plate direction: Start the second servo motor 11, the second servo motor 11 drives the third reciprocating screw 10 to rotate, the third reciprocating screw 10 drives the third slider 9 to move along it, the mounting bracket 803 slides along the horizontal plate 802 with the third slider 9, realizes the position adjustment of the mounting bracket 803 in this direction, and meets the needs of different processing positions.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A movable gantry for a gantry milling machine, comprising a slide rail (1) and a fixing hole (2), wherein the end of the slide rail (1) is machined with the fixing hole (2), characterized in that: The inner wall of the slide rail (1) is slidably connected to the first slider (3), the inner wall of the first slider (3) is threadedly connected to the first reciprocating screw (4), the end of the first reciprocating screw (4) is fixedly connected to the first servo motor (5), the outer wall of the first servo motor (5) is threadedly connected to the slide rail (1), the inner wall of the slide rail (1) is connected to a support mechanism (6), the support mechanism (6) includes a pulley (601), the outer wall of the pulley (601) is slidably connected to the slide rail (1), the outer wall of the pulley (601) is rotatably connected to the support frame (602), the upper end of the support frame (602) is threadedly connected to the fixing sleeve (603) by bolts, and the outer wall of the fixing sleeve (603) is fixedly connected to the fixing plate (604).

2. The movable gantry for a gantry milling machine according to claim 1, characterized in that: The inner wall of the support frame (602) is rotatably connected to the second reciprocating screw (7), and the outer wall of the second reciprocating screw (7) is connected to a moving mechanism (8).

3. The movable gantry for a gantry milling machine according to claim 2, characterized in that: The moving mechanism (8) includes a second slider (801), the outer wall of the second slider (801) is threadedly connected to the second reciprocating screw (7), the outer wall of the second slider (801) is fixedly connected to the horizontal plate (802), and the outer wall of the horizontal plate (802) is slidably connected to the mounting bracket (803).

4. The movable gantry for a gantry milling machine according to claim 3, characterized in that: The inner wall of the mounting bracket (803) is fixedly connected to the third slider (9), the inner wall of the third slider (9) is threadedly connected to the third reciprocating screw (10), and the end of the third reciprocating screw (10) is rotatably connected to the horizontal plate (802).

5. The movable gantry for a gantry milling machine according to claim 4, characterized in that: The outer wall of the horizontal plate (802) is fixedly connected to a second servo motor (11), and the output shaft of the second servo motor (11) is fixedly connected to a third reciprocating screw (10).

6. The movable gantry for a gantry milling machine according to claim 5, characterized in that: The end of the second reciprocating screw (7) is fixedly connected to the output shaft of the third servo motor (12), and the outer wall of the third servo motor (12) is fixedly connected to the support frame (602).

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