Heavy gantry boring and milling machine
By installing proximity sensors at the four corners of the slide and forming an oil film for levitation, the problem of uneven slide levitation was solved, improving the machining accuracy and equipment stability of the heavy-duty gantry milling machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGYU HEAVY IND
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-19
AI Technical Summary
The hydrostatic system of existing heavy-duty gantry milling machines has insufficient or uneven lifting between the slide and the bed, resulting in equipment wear and uncontrollable machining accuracy.
Proximity sensors are installed at the four corners of the slide. The slide is floated by an oil film formed by a hydraulic mechanism. The sensors detect the float height of the four corners of the slide to ensure that the overall float height is consistent and to avoid wear.
It improves the machining accuracy of heavy-duty gantry milling machines, prevents wear between the slide and the machine bed, and ensures stable operation of the equipment.
Smart Images
Figure CN224373359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling machine technology, specifically to a heavy-duty gantry milling machine. Background Technology
[0002] The hydrostatic system of a gantry milling machine effectively reduces friction and wear between the bed and slide by forming an oil film. Insufficient hydrostatic lifting can lead to crawling during operation, affecting workpiece machining accuracy; in severe cases, it can cause wear on the hydrostatic plate and bed guide surfaces, resulting in equipment damage and uncontrollable machining accuracy. Currently, the hydrostatic system of existing heavy-duty gantry milling machines only has an oil pressure detection device at the front end of the hydrostatic system. An alarm sounds when the oil pressure does not meet the set requirements. However, the magnitude of the hydrostatic system oil pressure is not directly related to the hydrostatic lifting amount and oil film thickness. This means that in actual operation, there are instances where the hydrostatic system oil pressure meets the set requirements, but the hydrostatic lifting amount is insufficient or some areas fail to lift. Utility Model Content
[0003] In view of the problems existing in the prior art, the present invention provides a heavy-duty gantry milling machine to improve the problem of inaccurate measurement of the slide lift height of the existing heavy-duty gantry milling machine.
[0004] To achieve the above and other related objectives, this utility model provides a heavy-duty gantry milling machine, which includes a bed, a slide, a first sensor, a second sensor, a third sensor, a fourth sensor, and a hydraulic mechanism. The slide is slidably mounted on the bed, and the first sensor is fixedly mounted at one end of the slide. The second sensor is mounted opposite to the first sensor at the same end of the slide, with the first and second sensors located on opposite sides of the slide. The third sensor is mounted opposite to the first sensor at the other end of the slide, and the fourth sensor is mounted opposite to the second sensor at the other end of the slide, with the third and fourth sensors located on opposite sides of the slide. The hydraulic mechanism forms an oil film between the bed and the slide to levitate the slide.
[0005] In one embodiment of this utility model, the first sensor, the second sensor, the third sensor and the fourth sensor are respectively fixedly connected to the slide table via mounting brackets.
[0006] In one embodiment of the present invention, the mounting bracket includes a fixed plate and a crossbeam for mounting sensors. The fixed plate is fixedly connected to the slide table, and the crossbeam is disposed at the bottom of the fixed plate and extends in a direction away from the slide table.
[0007] In one embodiment of this utility model, the crossbeam is provided with a mounting groove for mounting the sensor, the sensor is provided with a thread, a first nut adapted to the thread is provided above the crossbeam, and a second nut adapted to the thread is provided below the crossbeam.
[0008] In one embodiment of this utility model, the first sensor, the second sensor, the third sensor and the fourth sensor are all proximity sensors.
[0009] In one embodiment of the present invention, a sliding groove is provided on the bed along the length direction of the bed body, and a slider matching the sliding table is provided on the sliding table.
[0010] In one embodiment of the present invention, the heavy-duty gantry milling machine further includes a drive device for driving the slide table to slide along the machine body.
[0011] In one embodiment of the present invention, the heavy-duty gantry milling machine further includes an electrical control cabinet, the electrical control cabinet includes a controller, and the first sensor, the second sensor, the third sensor and the fourth sensor are respectively electrically connected to the controller.
[0012] In one embodiment of the present invention, the heavy-duty gantry milling machine further includes an alarm device, which is electrically connected to the controller.
[0013] This invention relates to a heavy-duty gantry milling machine, in which a slide table is slidably mounted on the machine bed. A hydraulic mechanism is used to form an oil film between the machine bed and the slide table to lift the slide table. A first sensor, a second sensor, a third sensor, and a fourth sensor are respectively located at the four corners of the slide table to detect the lifting height of the four corners of the slide table. This ensures that the lifting height of the entire slide table is the same, avoids wear between the slide table and the machine bed, and improves the machining accuracy of the heavy-duty gantry milling machine. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a top view schematic diagram of one embodiment of the heavy-duty gantry boring and milling machine of this utility model;
[0016] Figure 2 This is a front view schematic diagram of one embodiment of the heavy-duty gantry boring and milling machine of this utility model;
[0017] Figure 3 This is a schematic front view of the assembly of the first sensor and the mounting bracket in one embodiment of the heavy-duty gantry milling machine of this utility model;
[0018] Figure 4 This is a side view of the assembly of the first sensor and the mounting bracket in one embodiment of the heavy-duty gantry milling machine of this utility model;
[0019] Figure 5 This is a top view schematic diagram of the assembly of the first sensor and the mounting bracket in one embodiment of the heavy-duty gantry milling machine of this utility model.
[0020] Component designation explanation:
[0021] 100. Bed frame; 110. Slide rail; 200. Slide table; 210. Slider; 300. First sensor; 400. Second sensor; 500. Third sensor; 600. Fourth sensor; 700. Mounting bracket; 710. Fixing plate; 720. Crossbeam; 721. Mounting slot; 730. First nut; 740. Second nut. Detailed Implementation
[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.
[0023] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.
[0024] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0025] Please see Figure 1 This utility model provides a heavy-duty gantry milling machine, which includes a bed 100, a slide 200, a first sensor 300, a second sensor 400, a third sensor 500, a fourth sensor 600, and a hydraulic mechanism (not shown in the figure). The slide 200 is slidably mounted on the bed 100. The first sensor 300 is fixedly mounted on one end of the slide 200. The second sensor 400 is mounted opposite to the first sensor 300 on the same end of the slide 200, with the first sensor 300 and the second sensor 400 located on opposite sides of the slide 200. The third sensor 500 is mounted opposite to the first sensor 300 on the other end of the slide 200, and the fourth sensor 600 is mounted opposite to the second sensor 400 on the other end of the slide 200, with the third sensor 500 and the fourth sensor 600 located on opposite sides of the slide 200. The hydraulic mechanism is used to form an oil film between the bed 100 and the slide 200 to float the slide 200. In the heavy-duty gantry milling machine of this application, the first sensor 300, the second sensor 400, the third sensor 500 and the fourth sensor 600 are respectively set at the four corners of the slide table 200 to detect the lifting height of the four corners of the slide table 200, so as to ensure that the lifting height of the entire slide table 200 is the same, avoid wear between the slide table 200 and the bed 100, and improve the machining accuracy of the heavy-duty gantry milling machine.
[0026] Please see Figures 2 to 5In one embodiment, the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600 are fixedly connected to the slide table 200 via a mounting bracket 700. The mounting bracket 700 includes a fixing plate 710 and a crossbeam 720 for mounting the sensors. The fixing plate 710 is fixedly connected to the slide table 200, and the crossbeam 720 is disposed at the bottom of the fixing plate 710 and extends in a direction away from the slide table 200. The crossbeam 720 is provided with a mounting groove 721 for mounting the sensors, and the sensors are provided with threads. A first nut 730 adapted to the threads is provided above the crossbeam 720, and a second nut 740 adapted to the threads is provided below the crossbeam 720. The height of the sensors can be adjusted by adjusting the first nut 730 and the second nut 740. Here, the sensor can be any one of the following: first sensor 300, second sensor 400, third sensor 500, and fourth sensor 600. Taking the first sensor 300 as an example, the fixing plate 710 is fixedly connected to the slide table 200 with screws. The first sensor 300 is set in the mounting groove 721, and the height of the first sensor 300 is adjusted to the required height by adjusting the first nut 730 and the second nut 740. The installation method of the second sensor 400, third sensor 500, and fourth sensor 600 is the same as that of the first sensor 300, and will not be described again here. Here, there is no restriction on the type of sensor, as long as it can be used to detect the distance between the slide table 200 and the bed 100. For example, the first sensor 300, second sensor 400, third sensor 500, and fourth sensor 600 are all proximity sensors. It should be noted that proximity sensors have wide applications in the industry, their structure and working principle are well known in the industry, and they can be obtained through general commercial means, so they will not be described in detail here.
[0027] Please see Figure 2 In one embodiment, a slide groove 110 is provided on the bed 100 along its length, and a slider 210 matching the slide table 200 is provided on the slide table 200. The slide table 200 and the bed 100 are slidably connected by the sliding of the slider 210 and the slide groove 110. A hydraulic mechanism forms an oil film between the slider 210 and the slide groove 110 to reduce wear on both. Here, the hydraulic mechanism can be configured with reference to conventional structures in the art, and will not be described in detail here. In this embodiment, the heavy-duty gantry milling machine also includes a drive device (not shown in the figure) for driving the slide table 200 to slide along the bed 100. The type of drive device is not limited here; the drive device can be any power device capable of driving the slide table 200 to slide linearly.
[0028] Please see Figure 1 and Figure 2In one embodiment, the heavy-duty gantry milling machine further includes an electrical control cabinet (not shown in the figure), which includes a controller. A first sensor 300, a second sensor 400, a third sensor 500, and a fourth sensor 600 are electrically connected to the controller. The controller receives data measured by the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600. For example, the electrical control cabinet is equipped with a human-machine interface (HMI). The HMI can display the data measured by the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600. The HMI can also set the lifting height of the slide 200 and, based on the lifting height of the slide 200, set the testing range of the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600, respectively. In other embodiments, the heavy-duty gantry milling machine further includes an alarm device (not shown in the figure), which is electrically connected to the controller. The alarm device is activated when the measured value of any one of the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600 exceeds the corresponding test range. There is no limitation on the type of alarm device; it can be any device capable of alerting the operator. For example, the alarm device can be a warning light that flashes or changes color to alert the operator when a fault occurs; it can also be a buzzer or siren that emits an audible signal when a fault occurs, making it easier to attract the operator's attention. There are no restrictions on the installation location of the alarm device, as long as it facilitates timely fault detection by the operator. The specific control process of the controller in this application can be found in existing control methods and will not be elaborated here.
[0029] Please see Figure 1 and Figure 2The method for monitoring the float height of the slide 200 of the heavy-duty gantry milling machine of this application is as follows: The first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600 are respectively installed at the four corners of the slide 200. Shims of equal thickness are placed between the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600 and the machine bed 100 to ensure that the gaps between the first sensor 300, the second sensor 400, the third sensor 500, and the fourth sensor 600 and the machine bed 100 are equal. The shims are then removed, and the first sensor 300, the second sensor 400, the third sensor 500, the fourth sensor 600, and the fourth sensor 600 are respectively... The first sensor 300 and the second sensor 400, the third sensor 500 and the fourth sensor 600 are calibrated so that the data measured by the first sensor 300, the second sensor 400, the third sensor 500 and the fourth sensor 600 are consistent with the thickness of the gasket. The slide table 200 is floated by a hydraulic mechanism. According to the gasket thickness and the floating height of the slide table 200, the test range of the first sensor 300, the second sensor 400, the third sensor 500 and the fourth sensor 600 are set on the human-machine interface on the electrical control cabinet. If the measured value of any one of the first sensor 300, the second sensor 400, the third sensor 500 and the fourth sensor 600 exceeds the set test range, the alarm device is activated.
[0030] This invention relates to a heavy-duty gantry milling machine. A slide table is slidably mounted on the machine bed. A hydraulic mechanism forms an oil film between the machine bed and the slide table, causing the slide table to float. First, second, third, and fourth sensors are respectively located at the four corners of the slide table, detecting the float height at each corner. This ensures that the entire slide table has the same float height, preventing wear between the slide table and the machine bed and improving the machining accuracy of the heavy-duty gantry milling machine. Therefore, this invention effectively overcomes some practical problems in the prior art, thus possessing high utilization value and practical significance.
[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A heavy duty gantry boring and milling machine characterized by, include: Bed frame; A sliding table is slidably mounted on the bed. The first sensor is fixedly mounted at one end of the slide table; The second sensor is disposed at the same end of the slide table opposite to the first sensor, and the first sensor and the second sensor are respectively located on both sides of the slide table; The third sensor is disposed opposite to the first sensor at the other end of the slide; A fourth sensor is disposed opposite to the second sensor at the other end of the slide table, while the third and fourth sensors are respectively located on both sides of the slide table; A hydraulic mechanism is used to form an oil film between the bed and the slide to levitate the slide.
2. The heavy duty gantry boring and milling machine according to claim 1, wherein, The first sensor, the second sensor, the third sensor, and the fourth sensor are respectively fixedly connected to the slide table via mounting brackets.
3. The heavy duty gantry boring and milling machine according to claim 2, characterized in that, The mounting bracket includes a fixed plate and a crossbeam for mounting sensors. The fixed plate is fixedly connected to the slide table, and the crossbeam is disposed at the bottom of the fixed plate and extends in a direction away from the slide table.
4. The heavy duty gantry boring and milling machine according to claim 3, characterized in that, The crossbeam is provided with a mounting groove for mounting the sensor, the sensor is provided with a thread, a first nut adapted to the thread is provided above the crossbeam, and a second nut adapted to the thread is provided below the crossbeam.
5. The heavy duty gantry boring and milling machine according to claim 1, wherein, The first sensor, the second sensor, the third sensor, and the fourth sensor are all proximity sensors.
6. The heavy-duty gantry milling machine according to claim 1, characterized in that, Along the length of the bed, a sliding groove is provided on the bed, and a slider that matches the sliding table is provided on the sliding table.
7. The heavy duty gantry boring and milling machine according to claim 1, wherein, The heavy-duty gantry milling machine also includes a drive device for driving the slide table to slide along the bed.
8. The heavy duty gantry boring and milling machine according to claim 1, wherein, The heavy-duty gantry milling machine also includes an electrical control cabinet, which includes a controller. The first sensor, the second sensor, the third sensor, and the fourth sensor are electrically connected to the controller.
9. The heavy duty gantry boring and milling machine according to claim 8, characterized in that, The heavy-duty gantry milling machine also includes an alarm device, which is electrically connected to the controller.