Gantry machining center guiding device

Abstract

The utility model relates to the technical field of gantry machining centers, in particular to a gantry machining center guiding device which comprises a machining table, guide rails are fixedly connected to the two sides of the top of the machining table, a containing plate is slidably connected between the tops of the guide rails through sliding blocks, and one end of the top of the machining table is fixedly connected with a servo motor. An output shaft of the servo motor is fixedly connected with a threaded rod, one end of the threaded rod is rotationally connected to the inner wall of one end of the machining table, the bottom of the containing plate is fixedly connected with a threaded sleeve, the threaded sleeve is in threaded connection to the outer wall of the threaded rod, and lubricating mechanisms for automatically adding lubricating oil to the guide rails and the outer wall of the threaded rod are arranged on the two sides of the containing plate correspondingly. Compared with the prior art, lubricating oil can be automatically and evenly smeared on the surfaces of the guide rail and the threaded rod through the lubricating mechanism, it is ensured that the good lubricating state is always kept between the guide rail and the sliding block and between the threaded rod and the threaded sleeve, and manual lubricating oil adding is not needed.

Description

Technical Field

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

[0002] Gantry machining is a large-scale machine tool widely used in aerospace, automotive manufacturing, precision molds, and other fields. Its primary function is to achieve high-precision machining of complex workpieces through multi-axis linkage. In a gantry machining center, guides are key components that ensure the precise and stable movement of the machine's moving parts along a specified path. Currently, the most common guides in gantry machining centers on the market utilize a combination of guide rails and sliders. These guides achieve linear displacement of machine tool components through the rolling or sliding motion of the sliders on the guide rails.

[0003] A Chinese patent discloses: a guide device for a gantry machining center with adjustable arm span, patent announcement number: CN216421655U, which "includes a base plate, a mounting seat, the mounting seat is fixedly mounted on the top surface of the base plate; a rotating mechanism, the rotating mechanism is arranged on the top surface of the mounting seat; a moving mechanism, the moving mechanism is connected to the rotating mechanism; and an adjusting mechanism, the adjusting mechanism is connected to the moving mechanism."

[0004] Although the gantry processing equipment can facilitate arm span adjustment, making it possible to adjust the guide rail spacing to increase the applicable range, the equipment cannot automatically apply lubricating oil to the guide rails and threaded rods. When operating under high load or for long periods of continuous operation, manual application is time-consuming and labor-intensive, and the lubricating oil cannot be applied in a timely manner. It is impossible to ensure that the outer walls of the guide rails and threaded rods are always lubricated. The friction between the guide rails and the sliders due to lack of lubricating oil will cause severe wear. Under the action of friction, tiny metal particles will fall off the metal surface, forming wear debris. These wear debris further aggravate the friction, resulting in uneven defects such as scratches and grooves on the surface. At the same time, due to increased wear and friction, the movement of the slider on the guide rail becomes unstable. This instability will lead to a decrease in positioning accuracy, making it difficult for the machine tool to accurately complete the preset processing path, which may lead to increased workpiece size errors and inconvenience in use. Utility Model Content

[0005] In view of this, the purpose of the present invention is to propose a guide device for a gantry machining center to solve the problem that manual application of lubricating oil is time-consuming and labor-intensive, and lubricating oil cannot be applied in time, resulting in severe wear caused by friction between the guide rails and sliders due to lack of lubricating oil, and also leading to a decrease in positioning accuracy and an increase in workpiece size error.

[0006] Based on the above-mentioned purpose, the utility model provides a gantry machining center guide device, including a processing table, guide rails are fixedly connected to both sides of the top of the processing table, and a placement plate is slidably connected between the tops of the guide rails via sliders. A servo motor is fixedly connected to one end of the top of the processing table, and the output shaft of the servo motor is fixedly connected to a threaded rod. One end of the threaded rod is rotatably connected to the inner wall of one end of the processing table, and a threaded sleeve is fixedly connected to the bottom of the placement plate. The threaded sleeve is threadedly connected to the outer wall of the threaded rod, and lubrication mechanisms are provided on both sides of the placement plate for automatically adding lubricating oil to the guide rails and the outer walls of the threaded rod.

[0007] Preferably, the lubrication mechanism includes a lubricating oil storage box fixedly connected to both sides of the placement plate, the side walls of the lubricating oil storage box are fixedly connected with a reset rubber sheet, the inner wall of the lubricating oil storage box is fixedly connected with a spring telescopic rod, one end of the spring telescopic rod is in contact with the inner wall of the reset rubber sheet, the top of the processing table is fixedly connected to both ends of the guide rail, the side walls of the fixed plate are fixedly connected with an extrusion column, one end of the extrusion column is in contact with the outside of the reset rubber sheet.

[0008] Preferably, the lubrication mechanism also includes a distribution pipe fixedly connected to the bottom of the lubricating oil storage tank, and the two sides of the distribution pipe are fixedly connected to the delivery pipe, one end of the delivery pipe is respectively fixedly connected to an oiling plate, the oiling plate is fixedly connected to the side wall of the placement plate, an oil distribution groove is provided inside the oiling plate, one end of the oil distribution groove is communicated with the bottom of the oiling plate, a lubricating oil application brush is fixedly connected to the bottom of the lubricating oil storage tank, a fixed rod is fixedly connected to the bottom of the fixed rod, and a drip pipe is fixedly connected to the middle part of the fixed rod near the bottom of the distribution pipe, and the drip pipe and the distribution pipe are on the same horizontal plane.

[0009] Preferably, air inlets are fixedly connected to both sides of the top of the lubricating oil storage tank, the bottom of the air inlet is communicated with the interior of the lubricating oil storage tank, a second filter is fixedly connected to the top inner wall of the air inlet, and a one-way valve is provided inside the air inlet and the distribution pipe.

[0010] Preferably, a feed port rotary cover is provided on the top of the lubricating oil storage tank.

[0011] Preferably, the bottom of the lubricating oil applying brush contacts the top of the guide rail.

[0012] Preferably, a first filter screen is fixedly connected to the inner wall of the top end of the drip tube.

[0013] Beneficial effects of the utility model:

[0014] The guide device of the gantry machining center can automatically and evenly apply lubricating oil to the surface of the guide rail and threaded rod through the lubrication mechanism, ensuring that the guide rail and slider, and the threaded rod and threaded sleeve are always in a good lubrication state. There is no need to manually add lubricating oil, saving time and effort. At the same time, the lubricating oil always forms a layer of oil film on the metal surface through the lubricating oil application brush and drip tube, reducing direct metal contact, greatly reducing friction, avoiding surface wear, and ensuring stable lubrication between the guide rail and slider. The movement of the slider is smoother, thereby ensuring the accuracy of the processing path, avoiding sudden changes in the slider movement, improving the processing accuracy and the dimensional accuracy of the workpiece, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the lubrication mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the lubricating oil storage box of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the air inlet of the utility model;

[0020] Figure 5 For this utility model Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0021] The following are marked in the figure:

[0022] 1. Processing table; 2. Guide rail; 3. Placement plate; 4. Servo motor; 5. Threaded rod; 6. Lubricating oil storage box; 7. Reset rubber sheet; 8. Spring telescopic rod; 9. Fixed plate; 10. Extrusion column; 11. Distribution pipe; 12. Feed pipe; 13. Oiling plate; 14. Oil distribution tank; 15. Lubricating oil application brush; 16. Fixed rod; 17. Drip tube; 18. First filter; 19. Air inlet; 20. Second filter; 21. One-way valve; 22. Threaded sleeve; 23. Feed inlet rotary cover. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0025] like Figures 1 to 5 As shown, a gantry machining center guiding device includes a machining table 1, guide rails 2 are fixedly connected to both sides of the top of the machining table 1, and a placement plate 3 is slidably connected between the tops of the guide rails 2 via sliders. A servo motor 4 is fixedly connected to one end of the top of the machining table 1, and the output shaft of the servo motor 4 is fixedly connected to a threaded rod 5. One end of the threaded rod 5 is rotatably connected to the inner wall of one end of the machining table 1, and a threaded sleeve 22 is fixedly connected to the bottom of the placement plate 3. The threaded sleeve 22 is threadedly connected to the outer wall of the threaded rod 5. Lubrication mechanisms for automatically adding lubricating oil to the outer walls of the guide rails 2 and the threaded rod 5 are provided on both sides of the placement plate 3.

[0026] For further information, see the attached Figures 1 to 5As shown, the lubrication mechanism includes a lubricating oil storage box 6 fixedly connected to both sides of the placement plate 3, the side walls of the lubricating oil storage box 6 are fixedly connected with a reset rubber sheet 7, the inner wall of the lubricating oil storage box 6 is fixedly connected with a spring telescopic rod 8, one end of the spring telescopic rod 8 is in contact with the inner wall of the reset rubber sheet 7, the top of the processing table 1 near the two ends of the guide rail 2 are fixedly connected with a fixed plate 9, the side wall of the fixed plate 9 is fixedly connected with an extrusion column 10, one end of the extrusion column 10 is in contact with the outside of the reset rubber sheet 7, the lubrication mechanism also includes a distribution pipe 11 fixedly connected to the bottom of the lubricating oil storage box 6, both sides of the distribution pipe 11 They are all fixedly connected with a feeding pipe 12, one end of which is fixedly connected with an oiling plate 13, which is fixedly connected to the side wall of the placement plate 3. An oil distribution groove 14 is provided inside the oiling plate 13, and one end of the oil distribution groove 14 is communicated with the bottom of the oiling plate 13. A lubricating oil smearing brush 15 is fixedly connected to the bottom of the oiling plate 13, and a fixing rod 16 is fixedly connected to the bottom of the lubricating oil storage box 6. A dripping pipe 17 is fixedly connected to the middle part of the fixing rod 16 near the bottom of the feeding pipe 11. The dripping pipe 17 and the feeding pipe 11 are on the same horizontal plane, and the lower end of the feeding pipe 11 extends into the dripping pipe 17;

[0027] When the lubrication mechanism is in use, first place the workpiece to be processed on the top of the placement plate 3, then turn on the power, start the servo motor 4, the servo motor 4 drives the threaded rod 5 to rotate, the threaded rod 5 drives the threaded sleeve 22 to move, and then the threaded sleeve 22 drives the placement plate 3 to slide on the top of the guide rail 2. When lubricating oil needs to be added to the outer wall of the guide rail 2 and the threaded rod 5, the placement plate 3 drives the top workpiece to move for processing through the placement plate 3. The placement plate 3 will slide toward one end of the processing table 1. When it slides to the side wall of the fixed plate 9 at one end, the extrusion column 10 on the side wall of the fixed plate 9 will squeeze The reset rubber sheet 7 will shrink toward the inside of the lubricating oil storage box 6 and squeeze the spring telescopic rod 8. At this time, the reset rubber sheet 7 squeezes the air in the lubricating oil storage box 6, increasing the pressure of the air in the lubricating oil storage box 6. Then the air will squeeze the lubricating liquid in the lubricating oil storage box 6, and the lubricating liquid will flow to the distribution pipe 11 and the feeding pipe 12. The lubricating liquid will be squeezed into the drip pipe 17 through the distribution pipe 11 and gathered. The gathered lubricating liquid will drip from the bottom of the drip pipe 17 onto the outer wall of the threaded rod 5 and pass through the threaded sleeve 22 and the outer wall of the threaded rod 5. The lubricating oil is evenly applied to the outer wall of the threaded rod 5, and the lubricating oil flowing to the feeding pipe 12 is transported to the oil distribution groove 14 through the feeding pipe 12 and flows to the lubricating oil smearing brush 15 through the oil distribution groove 14. The placing plate 3 slides left and right during processing, and the lubricating oil smearing brush 15 is driven to move. Then the lubricating oil smearing brush 15 will evenly apply the lubricating oil flowing to the outer wall of the lubricating oil smearing brush 15 to the guide rail 2. The lubricating mechanism can automatically and evenly apply the lubricating oil to the surface of the guide rail 2 and the threaded rod 5, ensuring that there is no friction between the guide rail 2 and the slider, and the thread A good lubrication state is always maintained between the rod 5 and the threaded sleeve 22, and there is no need to manually add lubricating oil, which saves time and effort. At the same time, the lubricating oil always forms a layer of oil film on the metal surface through the lubricating oil application brush 15 and the drip tube 17, reducing direct metal contact, greatly reducing friction, and avoiding surface wear. It also ensures stable lubrication between the guide rail 2 and the slider, and the movement of the slider is smoother, thereby ensuring the accuracy of the processing path, avoiding sudden changes in the movement of the slider on the guide rail 2, improving the processing accuracy and the dimensional accuracy of the workpiece, and improving the processing efficiency.

[0028] For further information, see the attached Figure 4As shown, air inlets 19 are fixedly connected to both sides of the top of the lubricating oil storage box 6, and the bottom of the air inlet 19 is connected to the interior of the lubricating oil storage box 6. A second filter 20 is fixedly connected to the inner wall of the top of the air inlet 19, and a one-way valve 21 is provided inside the air inlet 19 and the distribution pipe 11. When the extrusion column 10 leaves the outer wall of the reset rubber sheet 7, the spring telescopic rod 8 will squeeze the reset rubber sheet 7 to help the reset rubber sheet 7 return to its un-squeezed shape. When the reset rubber sheet 7 is restored, a negative pressure will be formed in the lubricating oil storage box 6. After the negative pressure is formed, the one-way valve 21 will open, allowing air outside the lubricating oil storage box 6 to enter the lubricating oil storage box 6, preventing the reset rubber sheet 7 from being unable to return to its un-squeezed shape. Then, the one-way valve 21 is provided in the distribution pipe 11 to prevent the reset rubber sheet 7 from sucking the lubricating oil in the delivery pipe 12 when it returns to its un-squeezed state. The second filter 20 is also used to filter dust in the air and prevent impurities after processing from falling into the lubricating oil storage box 6 through the air inlet 19.

[0029] For further information, see the attached Figure 2 As shown, a feed port rotary cover 23 is provided on the top of the lubricating oil storage tank 6 , and lubricating oil can be added to the interior of the lubricating oil storage tank 6 by rotating the feed port rotary cover 23 .

[0030] For further information, see the attached Figure 2 As shown, the bottom of the lubricating oil application brush 15 is in contact with the top of the guide rail 2. By the bottom of the lubricating oil application brush 15 being in contact with the top of the guide rail 2, the lubricating oil in the lubricating oil application brush 15 can always be in contact with the top of the guide rail 2, so that it can be evenly applied to the guide rail 2.

[0031] For further information, see the attached Figure 5 As shown, the top inner wall of the drip tube 17 is fixedly connected with a first filter 18, and the first filter 18 is fixedly connected to the outer wall of the distribution pipe 11. The first filter 18 facilitates the entry of air into the drip tube 17, so that the lubricating oil gathered in the drip tube 17 can flow downward and drip onto the threaded rod 5. At the same time, it also plays a role in isolating dust, preventing dust and impurities from floating into the drip tube 17 and contaminating the lubricating oil.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0033] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A gantry machining center guide device, comprising a machining table (1), guide rails (2) fixedly connected to both sides of the top of the machining table (1), and a placement plate (3) slidably connected between the tops of the guide rails (2) via sliders, characterized in that: A servo motor (4) is fixedly connected to one end of the top of the processing table (1), an output shaft of the servo motor (4) is fixedly connected to a threaded rod (5), one end of the threaded rod (5) is rotatably connected to the inner wall of one end of the processing table (1), a threaded sleeve (22) is fixedly connected to the bottom of the placement plate (3), the threaded sleeve (22) is threadedly connected to the outer wall of the threaded rod (5), and lubrication mechanisms for automatically adding lubricating oil to the guide rail (2) and the outer wall of the threaded rod (5) are provided on both sides of the placement plate (3).

2. A gantry machining center guide device according to claim 1, characterized in that: The lubricating mechanism comprises a lubricating oil storage box (6) fixedly connected to both sides of the placement plate (3); the side walls of the lubricating oil storage box (6) are fixedly connected to a reset rubber sheet (7); the inner wall of the lubricating oil storage box (6) is fixedly connected to a spring telescopic rod (8); one end of the spring telescopic rod (8) contacts the inner wall of the reset rubber sheet (7); the top of the processing table (1) is fixedly connected to both ends of the guide rail (2); the side walls of the fixed plate (9) are fixedly connected to an extrusion column (10); one end of the extrusion column (10) contacts the outside of the reset rubber sheet (7).

3. A gantry machining center guide device according to claim 2, characterized in that: The lubricating mechanism further comprises a distribution pipe (11) fixedly connected to the bottom of the lubricating oil storage box (6), both sides of the distribution pipe (11) are fixedly connected to a delivery pipe (12), one end of each delivery pipe (12) is fixedly connected to an oiling plate (13), the oiling plate (13) is fixedly connected to the side wall of the placement plate (3), an oil distribution groove (14) is provided inside the oiling plate (13), one end of the oil distribution groove (14) is communicated with the bottom of the oiling plate (13), a lubricating oil smearing brush (15) is fixedly connected to the bottom of the lubricating oil storage box (6), a fixed rod (16) is fixedly connected to the bottom of the distribution pipe (11), and a dripping pipe (17) is fixedly connected to the middle part of the fixed rod (16) near the bottom of the distribution pipe (11), and the dripping pipe (17) and the distribution pipe (11) are on the same horizontal plane.

4. A gantry machining center guide device according to claim 3, characterized in that: An air inlet (19) is fixedly connected to both sides of the top of the lubricating oil storage box (6), the bottom of the air inlet (19) is communicated with the interior of the lubricating oil storage box (6), a second filter (20) is fixedly connected to the inner wall of the top of the air inlet (19), and a one-way valve (21) is provided inside the air inlet (19) and the distribution pipe (11).

5. The guide device of a gantry machining center according to claim 2, characterized in that: The top of the lubricating oil storage box (6) is provided with a feed port rotary cover (23).

6. The guide device of a gantry machining center according to claim 3, characterized in that: The bottom of the lubricating oil smearing brush (15) is in contact with the top of the guide rail (2).

7. The guide device for a gantry machining center according to claim 3, characterized in that: The inner wall of the top end of the dripping pipe (17) is fixedly connected with a first filter screen (18), and the first filter screen (18) is fixedly connected to the outer wall of the distribution pipe (11).

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