Automatic cleaning type machine tool engraving and milling table

Abstract

The invention relates to an automatic cleaning type machine tool engraving and milling table which comprises a bottom frame, a supporting plate, an ejector rod, a connecting plate and a vertical driving assembly for driving the ejector rod to vertically slide. The ejector rods are located in gaps between the adjacent supporting plates in a one-to-one correspondence mode, and the connecting plates are connected with all the ejector rods. When the ejector rod slides to the highest position, the top face of the ejector rod is flush with the top face of the supporting plate, and when the ejector rod slides to the lowest position, the top face of the ejector rod is higher than the bottom face of the supporting plate. The tool clamp is arranged on the ejector rod, and when the ejector rod is ejected, the tool clamp is separated from the top face of the supporting plate. And the cleaning mechanism is used for removing chippings on the supporting plate and the top surface of the ejector rod. According to the scheme, when chippings are cleaned, the whole heavy table top does not need to be moved with great effort. During work, all that is needed is to start the vertical driving assembly, all the ejector rods are driven by the connecting plate to synchronously ascend, the tool clamp is integrally jacked up to be separated from the top face of the supporting plate, meanwhile, the top faces of the ejector rods are flush with the top face of the supporting plate, chippings are located on the whole working plane, and chipping cleaning is convenient.

Description

Technical Field

[0001] This application relates to the field of CNC machine tools, and in particular to an automatic cleaning type milling and engraving table for machine tools. Background Technology

[0002] A CNC machine tool is an automated machine tool controlled by a computer program. Operators do not need to manually crank the handwheel to operate the cutting tool; instead, they use pre-written digital instructions (called "machining programs" or "G-codes") to allow the machine tool to automatically complete precision machining of metal.

[0003] A milling table is a work platform on a CNC milling machine or machining center used to clamp and fix workpieces. During the milling process, the cutting tool rotates at high speed and rubs against the workpiece material, generating a lot of heat. Therefore, it is necessary to rinse the workpiece with cooling water to cool it down, which also helps to wash off debris from the workpiece for easier processing.

[0004] Reference Figure 1 Existing milling tables include a base frame with support plates spaced apart on it, and tooling fixtures mounted on the support plates. The spaced-apart support plates facilitate drainage and prevent water from overflowing the table surface. However, when machining large plate-shaped workpieces, the large area to be milled results in a large area of ​​debris scattering, leading to a significant workload for debris cleaning. Furthermore, debris tends to accumulate in the gaps between the support plates, requiring the entire milling table to be lifted for cleaning, which can cause the table to shift position and necessitate repositioning before resuming processing, making the process cumbersome. Summary of the Invention

[0005] To facilitate the cleaning of large areas of debris on the milling table, this application provides an automatic cleaning type milling table for machine tools.

[0006] This application provides an automatic cleaning machine tool engraving and milling table, which adopts the following technical solution:

[0007] An automatic cleaning type milling table for a machine tool includes a base frame, several support plates arranged at intervals on the base frame, the support plates being parallel to each other, several push rods, connecting plates, and a vertical drive assembly for driving the push rods to slide vertically; the push rods are located one-to-one in the gaps between adjacent support plates, the side walls of the push rods slide to contact the side walls of the support plates, and the connecting plates connect all the push rods; when the push rod slides to its highest position, the top surface of the push rod is flush with the top surface of the support plate, and when the push rod slides to its lowest position, the top surface of the push rod is higher than the bottom surface of the support plate;

[0008] The tooling fixture is mounted on the top rod. When the top rod is lifted, the tooling fixture detaches from the top surface of the support plate.

[0009] It also includes a cleaning mechanism for removing debris from the top surfaces of the support plate and the top rod.

[0010] By adopting the above technical solution, it is no longer necessary to laboriously move the entire heavy tabletop when cleaning debris. Simply activate the vertical drive assembly, which drives all the push rods to rise synchronously via the connecting plate. This lifts the tooling fixture and the workpiece on it, detaching it from the top surface of the support plate. Simultaneously, the top surface of the push rods is flush with the top surface of the support plate. At this point, the top surfaces of the support plate and the push rods form a complete working plane, with all debris located on this plane for easy cleaning. When the push rods slide to their lowest position, their top surface is higher than the bottom surface of the support plate, allowing cooling water to flow to both sides of the top surface of the push rods. Water collection channels are provided on both sides of the milling table. Furthermore, debris will not fall below the push rods. When the push rods are lifted, debris located between the support plates is also lifted, concentrating the debris on a single plane. This also lifts the tooling fixture, greatly reducing obstacles for debris cleaning and facilitating the cleaning mechanism's removal of debris. Compared to existing technologies that require "lifting up" the milling table for cleaning, this solution is simpler, faster, and less labor-intensive, reducing cleaning time from several minutes or even tens of minutes to tens of seconds. Since only the push rod assembly moves vertically during cleaning, while the base frame and support plate, serving as the installation reference, remain completely stationary, the original coordinate relationship between the milling table and the machine tool spindle remains unchanged. After cleaning, the push rod descends and resets, the tooling fixture and workpiece return to their original positions, and machining can resume immediately without any tool setting or repositioning operations. This ensures the continuity of the machining process and the consistency of batch products, greatly improving production efficiency.

[0011] Optionally, the tooling fixture includes a support bar and a top clamping structure. The top clamping structure includes a clamping threaded post, a clamping plate, and a clamping nut. The support bar is located on several support plates and is used to place the workpiece. The clamping threaded post is vertically arranged, and its bottom end is fixed to a top rod. The clamping plate is provided with a clamping hole, and the clamping threaded post passes through the clamping hole. The clamping nut is threadedly connected to the top of the clamping threaded post.

[0012] By adopting the above technical solution, the workpiece is placed on the support bar, then the clamping plate is positioned above the workpiece, and the clamping nut is positioned above the workpiece and tightened downwards onto the clamping threaded post, thus clamping the workpiece between the clamping plate and the support bar for fixation. When the vertical drive assembly lifts the top rod, the clamping threaded post fixed on the top rod will rise synchronously. Since the clamping plate and the clamping nut are "connected" by the clamping threaded post, they will be lifted as a whole, completely detached from the top surface of the support plate below. This allows the entire upper surface of the support plate to be completely exposed without any obstruction, enabling the cleaning mechanism (such as a high-pressure air gun or water spray bar) to remove all debris from the entire work surface without hindrance, achieving truly thorough cleaning without any blind spots.

[0013] Optionally, the top rod is provided with a top post, and the support bar is provided with a top hole for the top post to be inserted. When the top rod slides to the lowest position, the top post is located in the top hole. When the top rod moves upward, the support bar moves upward synchronously.

[0014] By adopting the above technical solution, the insertion design of the top column and the top hole is like installing a positioning pin between the top rod and the support bar, making it difficult for the support rod to shift during operation. When the top rod is lifted, the top column lifts the support rod, thereby detaching the support rod from the support plate.

[0015] Optionally, the tooling fixture further includes a lifting structure, which includes a lifting threaded column and a lifting threaded cylinder. The lifting threaded column is vertically arranged, and its bottom end is fixed to the top surface of the push rod. The lifting threaded cylinder is threadedly connected to the lifting threaded column, and its top end is used to support the bottom surface of the pressure plate. The lifting threaded cylinder is located at the end of the pressure plate away from the workpiece.

[0016] By adopting the above technical solution, the threaded support is lifted at the end of the clamping plate away from the workpiece, so that the force on both ends of the clamping plate is more uniform and the clamping plate is not easily damaged.

[0017] Optionally, the vertical drive assembly includes a vertical threaded column, a vertical threaded cylinder, a turbine, a worm gear, and a vertical drive component. The vertical threaded column is fixed to the bottom surface of the connecting plate, the vertical threaded cylinder is threaded to the outer wall of the vertical threaded column, the turbine gear is coaxially fixed to the vertical threaded cylinder, the two ends of the worm gear are rotatably connected to the bottom frame, the worm gear meshes with the turbine gear, and the vertical drive component drives the worm gear to rotate.

[0018] By adopting the above technical solution, the vertical drive component drives the worm gear to rotate, which in turn drives the turbine to rotate. The turbine and the vertical threaded cylinder rotate synchronously, causing the vertical threaded column to move upward, thereby driving the connecting plate and the push rod to move upward. The vertical drive assembly has a simple structure, small size, and is easy to install.

[0019] Optionally, the top post and the clamping threaded post are mounted on the same top rod, and the top post and the clamping threaded post are arranged in a straight line;

[0020] The cleaning mechanism includes a mounting frame, a cleaning component slidably mounted on the mounting frame, and a cleaning drive component for driving the cleaning component to slide horizontally. The cleaning component includes a sliding rod, a connecting rod, two connecting arms, and two cleaning rods. The sliding rod is slidably connected to the mounting frame, the connecting rod is fixed to the sliding rod, the two connecting arms are fixed to the connecting rod, and the two connecting arms are located on both sides of the extension line of the straight line formed by the top column, the clamping threaded column, and the lifting threaded column.

[0021] The cleaning rods are arranged horizontally, and the two cleaning rods extend toward each other. When the cleaning rods slide horizontally, the bottom of the cleaning rods slides to contact the support plate and the top surface of the top rod to scrape off the debris. The top post, the clamping threaded post, and the lifting threaded post pass through the gap between the two cleaning rods.

[0022] By adopting the above technical solution, the cleaning rods are designed to extend from both sides towards the center, with a notch in the middle. When the cleaning drive pushes the cleaning assembly to slide horizontally, the two cleaning rods can scrape across the entire worktable surface like two combs side by side. When the cleaning rods encounter obstacles such as top posts, clamping threaded posts, and lifting threaded posts fixed to the top rod, these obstacles are aligned in a straight line and can pass smoothly through the preset gap between the two cleaning rods. This perfectly avoids interference between the cleaning mechanism and the workpiece clamping system. The arrangement of the two cleaning rods covers the entire width of the worktable. A single sliding motion can complete the cleaning of all support plates and the top surfaces of the top rods along a complete path, resulting in very high efficiency. The bottom of the cleaning rods directly contacts the worktable surface, effectively removing stubborn debris that may be adhered to by the coolant through scraping, which is more effective than simply blowing air.

[0023] Optionally, the mounting bracket is provided with a slide rail for the sliding rod to slide along, and a roller is rotatably connected inside the slide rail. The axis of the roller is perpendicular to the sliding direction of the sliding rod, and the wheel surface of the roller supports the bottom surface of the sliding rod.

[0024] By adopting the above technical solution, the design of adding roller support to the sliding rod transforms the sliding friction of the sliding rod into rolling friction, greatly reducing motion resistance. The force required to drive the cleaning component to move horizontally (i.e., the load on the cleaning drive component) is significantly reduced, allowing for the selection of smaller, more energy-efficient, and lower-cost drive components (such as small cylinders, electric push rods, or motors), saving energy consumption. Rolling friction greatly reduces wear on the contact surfaces, effectively protecting the two precision-fitting components, the sliding rod and the slide rail. Over long-term use, they are less prone to wear and wobble, resulting in more stable scraping.

[0025] Optionally, each of the cleaning rods has an ejection groove on its close-to-each end face. An ejection block is slidably disposed in the ejection groove. The bottom of the ejection block is provided with an abutment block for contacting the top surface of the support plate. The bottom of the ejection block is provided with an abutment block. The bottom of the ejection groove is provided with an abutment groove for the abutment block to slide. An ejection spring is disposed in the ejection groove. The ejection spring drives the two ejection blocks to abut against each other. When the two ejection blocks abut against each other, the two abutment blocks also abut against each other.

[0026] By adopting the above technical solution, the original two cleaning rods had a fixed gap for top posts, threaded posts, etc. to pass through. This gap was a "cleaning dead zone," and debris located directly below this gap was difficult for the cleaning rods to scrape. The ejector block and ejector spring form an adaptive mechanism. When the cleaning rods are scraping normally, the two ejector blocks, in their abutting state, effectively fill the gap between the two cleaning rods, making the entire cleaning assembly act like a continuous scraper. When it is necessary to pass over an obstacle (such as a top post), the obstacle will squeeze one of the ejector blocks, overcoming the force of the ejector spring and causing it to retract into the ejector slot, thus making way for the obstacle. After the obstacle passes, the ejector spring will immediately push the ejector block back to its original position, restoring a continuous cleaning surface, making the entire countertop easy to clean, including debris that is located directly in the straight line of the uprights.

[0027] Optionally, the two edges of the ejector block away from the ejector slot, near the clamping thread post and away from the clamping thread post, are chamfered.

[0028] By adopting the above technical solution, the ejector block end face is designed with a chamfer to provide a guiding function, ensuring that the ejector block can smoothly slide into the ejector slot and achieve reliable obstacle avoidance. If the center of the ejector block is not precisely aligned with the center of the threaded post, the right-angled edge may directly "collide" with the side wall of the threaded post, resulting in failure to retract smoothly, causing jamming, vibration or damage.

[0029] As the ejector block approaches the threaded post, even with slight positional deviations, the chamfered bevel will contact the threaded post first. Under the continued thrust, a horizontal force is generated on this bevel, which "guides" or "forces" the ejector block to overcome the spring force and smoothly retract into the ejector slot. This guiding function reduces impact, vibration, and noise, thus protecting the equipment.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. When cleaning debris, there is no need to laboriously move the entire heavy table. Simply activate the vertical drive assembly, which drives all the push rods to rise synchronously through the connecting plate. This will lift the tooling fixture and the workpiece on it as a whole, detaching it from the top surface of the support plate. At the same time, the top surface of the push rods is flush with the top surface of the support plate. At this point, the top surface of the support plate and the top surface of the push rods form the entire working plane. All debris is located on the entire working plane, making debris cleaning convenient.

[0032] 2. The workpiece is placed on the support bar, and then the clamping plate is positioned above the workpiece. The clamping nut is positioned above the workpiece and tightened downwards to the clamping thread post, so that the workpiece is clamped between the clamping plate and the support bar. The clamping plate and the clamping nut are "connected" by the clamping thread post, so that when the push rod is lifted, the entire clamping plate and the clamping nut are completely separated from the top surface of the support plate below.

[0033] 3. The plug-in design of the top column and top hole acts like a locating pin between the top rod and the support bar, preventing the support rod from shifting during operation. When the top rod is lifted, the top column lifts the support rod, thus detaching the support rod from the support plate;

[0034] 4. The cleaning rods are designed to extend from both sides towards the center, with a notch in the middle. When the cleaning drive pushes the cleaning assembly horizontally, the two cleaning rods can scrape across the entire work surface like two side-by-side combs, making cleaning simple and efficient;

[0035] 5. The ejector blocks and ejector springs form an adaptive mechanism. When the cleaning rods are scraping normally, the two ejector blocks, in the state of mutual contact, effectively fill the gap between the two cleaning rods, making the entire cleaning assembly like a continuous scraper. When it is necessary to pass over an obstacle (such as a top post), the obstacle will squeeze one of the ejector blocks, overcoming the force of the ejector spring and causing it to retract into the ejector slot, thus making way for the obstacle. After the obstacle passes, the ejector spring will immediately push the ejector block back to its original position, restoring the continuous cleaning surface and making the entire countertop easy to clean. Attached Figure Description

[0036] Figure 1 This is a schematic diagram showing the overall structure of the automatic cleaning machine tool milling table in the embodiment.

[0037] Figure 2 This is a partial structural demonstration of the automatic cleaning machine tool milling table in the embodiment. Figure 1 The main focus is on showcasing the structure of the top rod.

[0038] Figure 3 This is a structural diagram of the support rod in an embodiment.

[0039] Figure 4 This is a partial structural illustration of an embodiment. Figure 2 The main exhibits are the top clamping structure and the lifting structure.

[0040] Figure 5 This is a partial structural illustration of an embodiment. Figure 3 This mainly showcases the structure of the vertical drive component.

[0041] Figure 6 This is a structural diagram illustrating the cleaning mechanism in an embodiment.

[0042] Figure 7 This is a partial exploded view of the end of the cleaning rod in the embodiment, mainly showing the structure of the ejector spring and the ejector block.

[0043] Explanation of reference numerals in the attached drawings: 1. Base frame; 11. Mounting plate; 2. Support plate; 3. Top rod; 31. Top column; 4. Connecting plate; 5. Vertical drive assembly; 51. Vertical threaded column; 52. Vertical threaded cylinder; 53. Turbine; 54. Worm gear; 55. Vertical drive component; 56. Rotating rod; 6. Tooling fixture; 61. Support bar; 611. Top hole; 62. Top clamping structure; 621. Clamping threaded column; 622. Clamping plate; 623. Clamping nut; 624. Clamping hole; 63. Top 7. Lifting structure; 631. Lifting threaded column; 632. Lifting threaded cylinder; 633. Lifting seat; 7. Cleaning mechanism; 71. Mounting bracket; 711. Slide rail; 712. Slide groove; 713. Roller; 72. Cleaning assembly; 721. Sliding rod; 722. Connecting rod; 723. Connecting arm; 724. Cleaning rod; 7241. Ejection groove; 7242. Ejection block; 7243. Abutment block; 7244. Abutment groove; 7245. Ejection spring; 73. Cleaning drive component; 8. Workpiece. Detailed Implementation

[0044] The present application will be further described in detail below with reference to the accompanying drawings.

[0045] This application discloses an automatic cleaning machine tool engraving and milling table. (Refer to...) Figure 1 The automatic cleaning machine tool milling table includes a base frame 1 and several support plates 2 arranged at intervals on the base frame 1. The base frame 1 consists of four side panels whose ends are fixed in sequence to form a closed ring. The top and bottom of the base frame 1 are hollow. The support plates 2 are parallel to each other, and both ends of the support plates 2 are fixed to the top of the base frame 1 along their length.

[0046] Reference Figure 1 , Figure 2 The automatic cleaning milling table also includes several push rods 3, connecting plates 4, and a vertical drive assembly 5 that drives the push rods 3 to slide vertically. Each push rod 3 is located in a corresponding gap between adjacent support plates 2. The side walls of the push rods 3 slide in contact with the side walls of the support plates 2. The thickness of the support plates 2 is 3-5 cm; in this embodiment, the thickness is 4 cm. The connecting plates 4 connect the bottom surfaces of all the push rods 3. When the push rod 3 slides to its highest position, its top surface is flush with the top surface of the support plate 2. When the push rod 3 slides to its lowest position, its top surface is higher than the bottom surface of the support plate 2 and lower than the top surface of the support plate 2; in this embodiment, the top surface of the push rod 3 is 3.8 cm lower than the top surface of the support plate 2.

[0047] Reference Figure 1 The fixture 6 is mounted on the push rod 3. When the push rod 3 is lifted, the fixture 6 detaches from the top surface of the support plate 2. The fixture 6 includes a support bar 61, a top clamping structure 62, and a lifting structure 63. Several support bars 61 are provided. The length direction of the support bars 61 is not parallel to the length direction of the support plate 2. The top surface of the support bars 61 is used for placing the workpiece 8.

[0048] Reference Figure 1 , Figure 2 , Figure 3 A vertically oriented top column 31 is welded and fixed to the top rod 3. The top column 31 has a polygonal cross-section to prevent the support bar 61 from moving. The number of top columns 31 corresponds to the number of support bars 61. The bottom of the support bar 61 has a top hole 611 for the top column 31 to be inserted into. When the top rod 3 slides to its lowest position, the top column 31 is located in the top hole 611 and abuts against the bottom wall of the top hole 611. When the top rod 3 moves upward, the support bar 61 moves upward simultaneously. When the top surface of the top rod 3 is flush with the top surface of the support plate 2, the support bar 61 is supported by the top column 31 and suspended above the support plate 2.

[0049] Reference Figure 1 , Figure 4 Two sets of top clamping structures 62 are provided, which are used to fix the two ends of the workpiece 8 that are far apart from each other. The top clamping structure 62 includes a clamping threaded post 621, a clamping plate 622, and a clamping nut 623. The clamping threaded post 621 is vertically arranged, and its bottom end is fixed to the top rod 3. The clamping plate 622 has a clamping hole 624, and the clamping threaded post 621 passes through the clamping hole 624. The clamping nut 623 is threadedly connected to the top of the clamping threaded post 621.

[0050] The CANZ TU 4 lifting structure 63 includes a lifting threaded post 631, a lifting threaded cylinder 632, and a lifting seat 633. The lifting seat 633 is fixed to the lifting threaded post 631, and its bottom surface is placed on the top surface of the support plate 2. The lifting threaded post 631 is vertically positioned, and its bottom end is fixed to the top surface of the push rod 3. The lifting threaded cylinder 632 is threadedly connected to the lifting threaded post 631. The top end of the lifting threaded cylinder 632 is used to support the bottom surface of the pressure plate 622. The lifting threaded cylinder 632 is located at the end of the pressure plate 622 away from the workpiece 8, so that both ends of the bottom surface of the pressure plate 622 are supported, ensuring that the pressure plate 622 is subjected to uniform force when pressing the workpiece 8, and is less prone to deformation or damage.

[0051] Reference Figure 2 , Figure 4 All the top posts 31, the clamping threaded posts 621 and the lifting threaded posts 631 are fixed on the same top rod 3, and all the top posts 31, the clamping threaded posts 621 and the lifting threaded posts 631 are arranged in a straight line, the direction of which is parallel to the length direction of the support plate 2.

[0052] Reference Figure 2 , Figure 5The vertical drive assembly 5 includes two vertical threaded posts 51, two vertical threaded cylinders 52, two turbines 53, two worm gears 54, and a vertical drive component 55. Two connecting plates 4 are provided, with the two vertical threaded posts 51 fixed to the bottom surfaces of the two connecting plates 4 in a one-to-one correspondence. A mounting plate 11 is fixed on the base frame 1, with the two turbines 53 rotatably connected to the mounting plate 11. The vertical threaded cylinders 52 are threaded to the outer walls of the vertical threaded posts 51, and the two turbines 53 are coaxially fixed to the two vertical threaded cylinders 52 in a one-to-one correspondence. The two worm gears 54 are integrally formed on the same rotating rod 56, with both ends of the rotating rod 56 rotatably connected to the base frame 1, thereby allowing the worm gears 54 to be rotatably connected to the base frame 1. The two worm gears 54 mesh with the two turbines 53 in a one-to-one correspondence. The vertical drive component 55 drives the worm gears 54 to rotate; the drive component is a servo motor, and a waterproof servo motor is selected.

[0053] Reference Figure 1 The automatic cleaning milling table of the machine tool also includes a cleaning mechanism 7 for removing debris from the top surfaces of the support plate 2 and the push rod 3. The cleaning mechanism 7 includes a mounting frame 71, a cleaning assembly 72 that is horizontally slidably disposed on the mounting frame 71, and a cleaning drive component 73 that drives the cleaning assembly 72 to slide horizontally.

[0054] Reference Figure 2 , Figure 6 The cleaning assembly 72 includes a sliding rod 721, a connecting rod 722, two connecting arms 723, and two cleaning rods 724. Two sliding rods 721 are provided, arranged parallel to each other and slidably connected to the mounting bracket 71. The sliding direction of the two sliding rods 721 is along their length and parallel to the length direction of the support plate 2. The two ends of the connecting rod 722 are fixed to the two sliding rods 721. The two connecting arms 723 are vertical in length, with their top ends fixed to the connecting rod 722. The two connecting arms 723 are located on both sides of the extension line of the straight line formed by the top post 31, the clamping threaded post 621, and the lifting threaded post 631.

[0055] Reference Figure 4 , Figure 5 , Figure 6 Two cleaning rods 724 are arranged horizontally, extending towards each other, with their ends fixed to the bottom of a connecting arm 723. When the cleaning rods 724 slide horizontally, their bottoms slide into contact with the support plate 2 and the top surface of the top rod 3 to scrape away debris. The top post 31, the clamping threaded post 621, and the lifting threaded post 631 pass through the gap between the two cleaning rods 724. A cloth layer or a foam layer can be bound to the cleaning rods 724 for better cleaning results.

[0056] Reference Figure 6The mounting bracket 71 is provided with a slide rail 711 for sliding the sliding rod 721. The slide rail 711 is provided with a slide groove 712. Several rollers 713 are rotatably connected in the slide groove 712. The arrangement direction of the rollers 713 is parallel to the sliding direction of the sliding rod 721. The axis of the rollers 713 is perpendicular to the sliding direction of the sliding rod 721. The wheel surface of the rollers 713 supports the bottom surface of the sliding rod 721.

[0057] Reference Figure 6 The cleaning drive component 73 is an electric push rod, which is fixed to the mounting bracket 71. The piston end of the electric push rod is fixed to the middle of the connecting rod 722.

[0058] Reference Figure 7 Each of the cleaning rods 724 has an ejection groove 7241 on its adjacent end faces. An ejection block 7242 is slidably disposed within the ejection groove 7241. The bottom of the ejection block 7242 is provided with an abutment block 7243 for contacting the top surface of the support plate 2. The bottom of the ejection groove 7241 is provided with an abutment groove 7244 for the abutment block 7243 to slide. An ejection spring 7245 is disposed within the ejection groove 7241. The ejection springs 7245 in the two ejection grooves 7241 drive the two ejection blocks 7242 to abut against each other. When the two ejection blocks 7242 abut against each other, the two abutment blocks 7243 also abut against each other.

[0059] The two edges of the ejector block 7242, which are away from the ejector slot 7241 and near the clamping thread post 621, are chamfered.

[0060] The implementation principle of an automatic cleaning machine tool milling table according to an embodiment of this application is as follows: When the workpiece 8 is being processed, the push rod 3 is in its lowest position, with its top surface approximately 3.8 cm lower than the top surface of the support plate 2. The support bar 61, through its bottom top hole 611, is fitted onto the top post 31 at the top of the push rod 3 and placed directly on the top surface of the support plate 2. The workpiece 8 is placed on the support bar 61. The clamping plate 622 of the top clamping structure 62 clamps the workpiece 8 through the clamping nut 623, thus fixing the workpiece 8. The cutting tool on the CNC machine tool processes the workpiece 8, and the CNC machine tool spindle begins to perform milling operations on the workpiece 8. The generated debris is scattered on the support plate 2, the push rod 3, and the workpiece 8. At this time, the cleaning mechanism 7 is located at the initial end of the table.

[0061] When cleaning is required, remove workpiece 8, or leave workpiece 8 still and move excess debris from workpiece 8 to support plate 2 and top rod 3. Then activate vertical drive assembly 5 (servo motor). The servo motor drives worm gear 54 to rotate, which in turn drives turbine 53 to rotate, thereby rotating vertical threaded cylinder 52. This drives vertical threaded column 51, along with connecting plate 4 and top rod 3, to rise smoothly and vertically. Top rod 3 pushes top column 31 to rise, and top column 31 lifts support bar 61, workpiece 8, and the entire top pressing structure 62 and lifting structure 63 together, completely detaching them from the top surface of support plate 2. Finally, the top surface of top rod 3 is flush with the top surface of support plate 2, and workpiece 8 system is "suspended" and supported. At this time, all debris is fully exposed. Activate cleaning drive assembly 73 (electric push rod), which pushes cleaning assembly 72 to move horizontally along slide rail 711. The contact blocks 7243 at the bottom of the two cleaning rods 724 move in close contact with the table surface. Under the action of the ejector spring 7245, the two ejector blocks 7242 abut against each other, forming a continuous scraper that sweeps away most of the debris. When the cleaning rod 724 moves to an obstacle such as the clamping threaded post 621: the obstacle contacts the chamfer on the end face of the ejector block 7242. Guided by the chamfer, the ejector block 7242 overcomes the force of the ejector spring 7245 and smoothly retracts into the ejector groove 7241. The obstacle passes smoothly through the gap between the two cleaning rods 724. After the obstacle passes, the ejector spring 7245 immediately pushes out the ejector block 7242, restoring the continuous scraping surface and scraping away most of the debris from the milling table.

[0062] Then reset, cleaning component 72 returns to its initial position, vertical drive component 5 reverses its action, and drive top rod 3 to descend vertically.

[0063] In this solution, because the entire lifting and lowering process of the push rod 3 is a strictly vertical movement, and the support bar 61 is precisely guided by the push column 31 and the push hole 611, the workpiece 8 and the fixture system will fall back to their original position with perfect accuracy. This allows for a complete return to the initial state of the machining stage, and the workpiece 8 can be cleaned without being removed. The operator can immediately begin machining the next workpiece 8 without any repositioning or tool setting operations.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic cleaning type milling table for a machine tool, comprising a base frame (1) and a plurality of support plates (2) arranged at intervals on the base frame (1), wherein the plurality of support plates (2) are parallel to each other, characterized in that: It also includes several push rods (3), connecting plates (4) and a vertical drive assembly (5) that drives the push rods (3) to slide vertically; the push rods (3) are located one-to-one in the gap between adjacent support plates (2), the side walls of the push rods (3) slide to contact the side walls of the support plates (2), and the connecting plates (4) connect all the push rods (3); When the top rod (3) slides to the highest position, the top surface of the top rod (3) is flush with the top surface of the support plate (2). When the top rod (3) slides to the lowest position, the top surface of the top rod (3) is higher than the bottom surface of the support plate (2). The tooling fixture (6) is mounted on the push rod (3). When the push rod (3) is lifted, the tooling fixture (6) disengages from the top surface of the support plate (2). It also includes a cleaning mechanism (7) for removing debris from the top surfaces of the support plate (2) and the top rod (3).

2. The automatic cleaning machine tool milling table according to claim 1, characterized in that: The tooling fixture (6) includes a support bar (61) and a top clamping structure (62). The top clamping structure (62) includes a clamping threaded post (621), a clamping plate (622), and a clamping nut (623). The support bar (61) is located on several support plates (2) and is used to place the workpiece (8). The clamping threaded post (621) is vertically arranged and its bottom end is fixed to the top rod (3). The clamping plate (622) is provided with a clamping hole (624). The clamping threaded post (621) passes through the clamping hole (624). The clamping nut (623) is threaded to the top of the clamping threaded post (621).

3. The automatic cleaning machine tool milling table according to claim 2, characterized in that: The top rod (3) is provided with a top post (31), and the support bar (61) is provided with a top hole (611) for the top post (31) to be inserted. When the top rod (3) slides to the lowest position, the top post (31) is located in the top hole (611). When the top rod (3) moves upward, the support bar (61) moves upward synchronously.

4. The automatic cleaning machine tool milling table according to claim 2, characterized in that: The tooling fixture (6) also includes a lifting structure (63), which includes a lifting threaded column (631) and a lifting threaded cylinder (632). The lifting threaded column (631) is vertically arranged, and its bottom end is fixed to the top surface of the push rod (3). The lifting threaded cylinder (632) is threadedly connected to the lifting threaded column (631). The top end of the lifting threaded cylinder (632) is used to support the bottom surface of the pressure plate (622). The lifting threaded cylinder (632) is located at the end of the pressure plate (622) away from the workpiece (8).

5. The automatic cleaning machine tool milling table according to claim 1, characterized in that: The vertical drive assembly (5) includes a vertical threaded column (51), a vertical threaded cylinder (52), a turbine (53), a worm (54), and a vertical drive component (55). The vertical threaded column (51) is fixed to the bottom surface of the connecting plate (4). The vertical threaded cylinder (52) is threaded to the outer wall of the vertical threaded column (51). The turbine (53) is coaxially fixed to the vertical threaded cylinder (52). The two ends of the worm (54) are rotatably connected to the bottom frame (1). The worm (54) meshes with the turbine (53). The vertical drive component (55) drives the worm (54) to rotate.

6. The automatic cleaning machine tool milling table according to claim 3, characterized in that: The top post (31) and the clamping thread post (621) are mounted on the same top rod (3), and the top post (31) and the clamping thread post (621) are arranged in a straight line; The cleaning mechanism (7) includes a mounting frame (71), a cleaning component (72) slidably mounted on the mounting frame (71), and a cleaning drive component (73) for driving the cleaning component (72) to slide horizontally. The cleaning component (72) includes a sliding rod (721), a connecting rod (722), two connecting arms (723), and two cleaning rods (724). The sliding rod (721) is slidably connected to the mounting frame (71). The connecting rod (722) is fixed to the sliding rod (721). The two connecting arms (723) are fixed to the connecting rod (722). The two connecting arms (723) are located on both sides of the extension line of the straight line formed by the top column (31), the pressing threaded column (621), and the lifting threaded column (631). The cleaning rod (724) is arranged laterally, and the two cleaning rods (724) extend toward each other. When the cleaning rod (724) slides horizontally, the bottom of the cleaning rod (724) slides to contact the top surface of the support plate (2) and the top rod (3) to scrape off the debris. The top post (31), the clamping threaded post (621), and the lifting threaded post (631) pass through the gap between the two cleaning rods (724).

7. The automatic cleaning machine tool milling table according to claim 6, characterized in that: The mounting bracket (71) is provided with a slide rail (711) for sliding the sliding rod (721). A roller (713) is rotatably connected inside the slide rail (711). The axis of the roller (713) is perpendicular to the sliding direction of the sliding rod (721). The wheel surface of the roller (713) supports the bottom surface of the sliding rod (721).

8. The automatic cleaning machine tool milling table according to claim 6, characterized in that: The cleaning rods (724) are provided with ejection grooves (7241) on their close-to-each end faces. An ejection block (7242) is slidably disposed in the ejection groove (7241). An abutment block (7243) is provided at the bottom of the ejection block (7242) for contacting the top surface of the support plate (2). An abutment block (7243) is provided at the bottom of the ejection block (7242). An abutment groove (7244) for the abutment block (7243) to slide is provided at the bottom of the ejection groove (7241). An ejection spring (7245) is provided in the ejection groove (7241). The ejection spring (7245) drives the two ejection blocks (7242) to abut against each other. When the two ejection blocks (7242) abut against each other, the two abutment blocks (7243) also abut against each other.

9. The automatic cleaning machine tool milling table according to claim 8, characterized in that: The ejector block (7242) has chamfers on the two edges of the end face away from the ejector groove (7241) that are close to the clamping thread post (621) and away from the clamping thread post (621).

Images