A general-purpose numerical control machine tool suitable for machining precision parts

Abstract

This invention relates to the field of deburring technology, and particularly to a general-purpose CNC machine tool suitable for machining precision parts. It includes a machining platform with two sets of support seats symmetrically arranged on its two side walls. A deburring mechanism is located on the top of each support seat. A negative pressure limiting mechanism is also located on the top of the machining platform. This invention controls the horizontal movement of a translation ring, followed by the rotation of a rotating ring on the outer wall of the translation ring. The height of the grinding drive assembly is adjusted via a drive seat, a first swing arm, and a second swing arm. The angle of the grinding rod is then adjusted by controlling the drive seat, the first swing arm, and the second swing arm. Simultaneously, a scanning camera scans the shape of the precision parts, enabling the grinding rod to precisely deburr the edges or bevels of precision parts with different shapes. This improves the machining accuracy of the CNC machine tool while enhancing the compatibility of the machining process.

Description

Technical Field

[0001] This invention belongs to the field of burr removal technology, and specifically relates to a general-purpose CNC machine tool suitable for precision parts processing. Background Technology

[0002] CNC turning, CNC milling, grinding, drilling, and boring are the most mainstream forming methods for high-precision metal / non-metal parts. However, when the cutting edge of the tool is worn or dulled, it cannot achieve sharp cutting, which will cause the material to be squeezed and flanged to form burrs. At this time, it is necessary to use the corresponding CNC machine tool to remove the burrs of the precision parts.

[0003] A search revealed that in the prior art, Chinese Patent Publication No. CN119927746B, published on July 8, 2025, discloses a burr removal device for parts processing. This device includes a grinding machine body and a grinding assembly mounted on one side of the grinding machine body for grinding hexagonal nuts. The grinding machine body has a mounting groove on one side, and fixing rods are provided above and below the grinding assembly. A power assembly for controlling the movement of the fixing rods is disposed within the mounting groove. This invention utilizes the fixing rods to... A toothed ring is fixedly installed, and a limiting arc-shaped block is slidably installed in the sliding groove on the side wall of the mounting slot. After one side of the hexagonal nut is ground and deburred, the control rod drives the hexagonal nut to move. During the movement of the control rod, the toothed ring contacts the right-angle surface of the limiting arc-shaped block and rotates, which is used to control the face change of the hexagonal nut. When the control rod drives the hexagonal nut to move and reset, the toothed ring contacts the arc-shaped surface of the limiting arc-shaped block and pushes the limiting arc-shaped block into the sliding groove. The toothed ring does not rotate, which facilitates timely face change and deburring of the hexagonal nut.

[0004] However, the device still has the following drawbacks: Existing CNC machine tools used for deburring parts require frequent rotation of the parts when machining irregularly shaped workpieces, and can only perform deburring work in straight or arc directions. This makes the edges of the parts susceptible to uneven pressure, thereby reducing the machining accuracy of the CNC machine tool. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a general-purpose CNC machine tool suitable for precision parts machining, comprising a machining platform, two sets of support seats symmetrically arranged on both side walls of the machining platform, and a deburring mechanism at the top of the two sets of support seats; a negative pressure limiting mechanism is provided at the top of the machining platform; The deburring mechanism includes two sets of symmetrically arranged electric push rods; two sets of connecting columns are symmetrically connected to the output ends of the two sets of electric push rods; a guide column is provided between the two sets of connecting columns; a translation ring is sleeved on the outer wall of the guide column; a rotating ring is sleeved on the outer wall of the translation ring; and a drive seat is provided on the outer wall of the rotating ring. A first swing arm is driven to one side wall of the drive seat; a second swing arm is driven to the end of the first swing arm away from the drive seat; a grinding drive assembly is driven to the end of the second swing arm away from the first swing arm; a grinding rod is driven to the output end of the grinding drive assembly; a scanning camera is provided on the outer wall of the grinding drive assembly.

[0006] Furthermore, two sets of sliding grooves are symmetrically provided on both sides of the processing platform; the two sets of support seats are symmetrically slidably connected in the two sets of sliding grooves; a tube reel is provided at one edge of the top of the processing platform; an air pump is provided inside the processing platform; one end of the tube reel is connected to a negative pressure limiting mechanism, and the other end is connected to the air pump; a drive chamber is provided inside the processing platform; a slider is provided inside the drive chamber; a drive screw is provided in the drive chamber; the slider is threadedly connected to the drive screw and is also connected to the two sets of support seats.

[0007] Furthermore, a second sliding groove is provided on the outer wall of the guide post; a second driving cavity is provided inside the guide post; a second slider is provided inside the second driving cavity; a second driving screw is provided inside the second driving cavity; the second slider is threadedly connected to the second driving screw and is also connected to the translation ring drive.

[0008] Furthermore, the negative pressure limiting mechanism includes a guide seat; a guide groove is provided on the top of the guide seat; a guide plate is provided in the guide groove; the side view cross-section of the guide plate is fan-shaped and the central angle is greater than 180°; a drive groove is provided on the outer wall of the guide plate; and a negative pressure plate is provided on the inner wall of the guide plate.

[0009] Furthermore, the top of the guide seat is symmetrically provided with two sets of permanent magnets; the side view of the negative pressure plate is a fan-shaped annular section; the inner wall of the negative pressure plate is provided with a negative pressure protective cover; a processing groove is opened on the side wall of the negative pressure protective cover away from the negative pressure plate; two sets of folding protective plates are symmetrically provided on the inner walls of both sides of the processing groove.

[0010] Furthermore, two sets of electric push rods are symmetrically arranged at both ends of the inner wall of the negative pressure plate; a set of part limiting components is connected to the output end of each set of electric push rods; an air guide cavity is opened inside the negative pressure plate; several sets of negative pressure grooves are equally spaced on the inner wall of the negative pressure plate; a filter plate is provided at the opening of each set of negative pressure grooves; the air guide cavity is connected to several sets of negative pressure grooves, and the other end is connected to the hose reel; an anti-clogging cleaning component is provided inside the negative pressure plate.

[0011] Furthermore, the part limiting assembly includes a limiting seat; the limiting seat has a top view cross section that is a regular octagon; the top of the limiting seat has four sets of sliding grooves arranged in a circular array; each set of sliding grooves has a set of limiting rods; and each set of limiting rods has a set of pressure sensors.

[0012] Furthermore, a set of drive motors is provided on each of the four side walls of the limiting seat; a drive cavity three is provided inside the limiting seat; a connecting column two is provided at the center of the drive cavity three; the output end of each set of drive motors extends into the drive cavity three and is connected to a set of drive screw three; the other end of each set of drive screw three is rotatably connected to the side wall of the connecting column two.

[0013] Furthermore, the drive cavity three is provided with four sets of sliders three arranged in a ring array; each set of sliders three is threadedly connected to a corresponding set of drive screws three, and is also connected to a corresponding set of limit rods in a transmission connection.

[0014] Furthermore, the anti-clogging cleaning component includes two sets of symmetrically arranged permanent magnets II; each set of permanent magnets II has several sets of balls evenly distributed at its bottom; two sets of sliding grooves IV are symmetrically opened on the opposite side wall of the two sets of permanent magnets II; an installation plate is provided between the two sets of sliding grooves IV; several sets of sliding grooves V are opened at the bottom of the installation plate; sliding rods are slidably connected in the several sets of sliding grooves V; a scraper I is provided at the bottom of the sliding rod; a set of scraper II is elastically rotatably connected to both ends of the bottom of the sliding rod.

[0015] The beneficial effects of this invention are: 1. By controlling the translation ring to move horizontally, and then controlling the rotating ring to rotate on the outer wall of the translation ring, the height of the grinding drive assembly is adjusted by the drive seat, the first swing arm and the second swing arm. Then, the angle of the grinding rod is adjusted by controlling the drive seat, the first swing arm and the second swing arm. At the same time, the shape of the precision parts can be scanned by the scanning camera, so that the grinding rod can accurately deburr the edges or bevels of precision parts of different shapes. This improves the machining accuracy of CNC machine tools and the compatibility of machining work, thereby meeting the need for high versatility.

[0016] 2. The air pump connects to the air guide chamber via a hose reel, enabling several sets of negative pressure grooves to draw in air. This creates a negative pressure zone within the space between the negative pressure plate and the negative pressure protective cover, preventing part debris generated during deburring from dispersing into the air. After one end of the precision part is machined, the upper part limiting assembly can be used to alternately fix the precision part. Then, the control guide plate moves the upper part limiting assembly to the lower part, causing the part to flip. This eliminates the need for manual part flipping. Finally, after the deburring is completed, two sets of folding protective plates can be pulled out to form a closed space, preventing the limiting mechanism from being directly exposed to the external space. This not only improves the dustproof and protective effect of the CNC machine tool but also increases the efficiency of the machining process.

[0017] 3. The top view of the limiting seat of the part limiting assembly is a regular octagon. The four side walls arranged in a ring array are each equipped with a set of drive motors. By controlling the drive motors, the corresponding drive screws rotate. With the threaded connection between the drive screws and the sliders, the four sliders can drive the four limiting rods to abut against the outer or inner wall of the precision part, forming an internal support or external fixation limiting method for the precision part. At the same time, each limiting rod is equipped with a pressure sensor, which can automatically adjust the contact pressure. The two sets of part limiting assemblies are set opposite each other, and the eight limiting rods are staggered, so that alternating clamping and limiting work can be performed, which improves the limiting effect of CNC equipment and the compatibility of limiting work.

[0018] 4. Several sets of ball bearings are evenly distributed at the bottom of both sets of permanent magnets, allowing them to slide on the inner wall of the negative pressure plate. Simultaneously, under the magnetic attraction of the permanent magnets on both sides, the two sets of permanent magnets remain directly below the inner wall of the negative pressure plate during its movement. The scraper and the two sets of scrapers scrape away the debris adhering to the filter plate, preventing debris from clogging the filter plate and reducing the negative pressure effect. Furthermore, the scraper and the two sets of scrapers can slide and rotate to avoid obstruction by the two sets of electric push rods, improving both the working stability of the CNC equipment and the debris collection efficiency.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a CNC machine tool according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the structure of a CNC machine tool in operation according to an embodiment of the present invention is shown; Figure 3 A partial cross-sectional schematic diagram of a processing platform according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the deburring mechanism according to an embodiment of the present invention is shown; Figure 5 A partial cross-sectional schematic diagram of a deburring mechanism according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the negative pressure limiting mechanism according to an embodiment of the present invention is shown; Figure 7 A cross-sectional schematic diagram of a negative pressure limiting mechanism according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the structure of a part limiting assembly according to an embodiment of the present invention is shown; Figure 9 A cross-sectional schematic diagram of a part limiting assembly according to an embodiment of the present invention is shown; Figure 10 A schematic diagram of the anti-clogging cleaning component according to an embodiment of the present invention is shown.

[0022] In the diagram: 1. Machining platform; 2. Slide 1; 3. Support base; 4. Deburring mechanism; 5. Negative pressure limiting mechanism; 6. Tube reel; 7. Drive chamber 1; 8. Slider 1; 9. Drive screw 1; 401. Electric push rod 1; 402. Connecting column 1; 403. Guide column; 404. Slide 2; 405. Translation ring; 406. Rotating ring; 407. Drive base; 408. First swing arm; 409. Second swing arm; 410. Grinding drive assembly; 411. Grinding rod; 412. Scanning camera; 413. Drive chamber 2; 414. Slider 2; 415. Drive screw 2; 501. Guide base; 502. Guide groove; 503. Guide plate; 504. Drive groove; 505. Negative pressure plate; 506. Permanent Magnet I; 507. Negative Pressure Protective Cover; 508. Processing Groove; 509. Folding Protective Plate; 510. Electric Push Rod II; 511. Part Limiting Assembly; 512. Air Guide Chamber; 513. Negative Pressure Groove; 514. Filter Plate; 515. Anti-clogging Cleaning Assembly; 5111. Limiting Seat; 5112. Slide Rail III; 5113. Limiting Rod; 5114. Drive Motor; 5115. Drive Chamber III; 5116. Connecting Column II; 5117. Drive Screw III; 5118. Slider III; 5151. Permanent Magnet II; 5152. Ball Bearing; 5153. Slide Rail IV; 5154. Mounting Plate; 5155. Slide Rail V; 5156. Sliding Rod; 5157. Scraper I; 5158. Scraper II. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a general-purpose CNC machine tool suitable for machining precision parts, including a machining platform 1. For example, as shown... Figure 1 , Figure 2 and Figure 3 As shown, two sets of sliding grooves 2 are symmetrically arranged on the two side walls of the processing platform 1; two sets of support seats 3 are symmetrically arranged in the two sets of sliding grooves 2; a deburring mechanism 4 is provided on the top of the two sets of support seats 3; a negative pressure limiting mechanism 5 is provided on the top of the processing platform 1; a tube reel 6 is provided at one edge of the top of the processing platform 1; an air pump is provided inside the processing platform 1; one end of the tube reel 6 is connected to the negative pressure limiting mechanism 5, and the other end is connected to the air pump; a driving cavity 7 is provided inside the processing platform 1; a slider 8 is provided inside the driving cavity 7; a driving screw 9 is provided in the driving cavity 7; the slider 8 is threadedly connected to the driving screw 9 and is also connected to the two sets of support seats 3 in a transmission connection.

[0025] When performing deburring of precision parts, the precision parts are first fixed in the negative pressure limiting mechanism 5. Then, the deburring mechanism 4 is controlled to remove burrs from the edges or bevels of the precision parts. At the same time, the air pump creates a negative pressure area in the negative pressure limiting mechanism 5 to prevent part debris from scattering into the air. After the burrs on one edge or bevel of the precision parts are removed, the negative pressure limiting mechanism 5 alternately limits and flips the precision parts to remove burrs from the other edge or bevel. Meanwhile, the drive screw 9 is controlled to rotate. With the threaded connection between the drive screw 9 and the slider 8, the deburring mechanism 4 can avoid the flipping action of the negative pressure limiting mechanism 5.

[0026] For example, such as Figure 4 and Figure 5As shown, the deburring mechanism 4 includes two sets of symmetrically arranged electric push rods 401; two sets of connecting columns 402 are symmetrically connected to the output ends of the two sets of electric push rods 401; a guide column 403 is provided between the two sets of connecting columns 402; a sliding groove 404 is provided on the outer wall of the guide column 403; a translation ring 405 is sleeved on the outer wall of the guide column 403; a rotating ring 406 is sleeved on the outer wall of the translation ring 405; a drive seat 407 is provided on the outer wall of the rotating ring 406; a first swing arm 408 is connected to one side wall of the drive seat 407; the first swing arm 408 is located at... A second swing arm 409 is driven to one end of the drive seat 407; a grinding drive assembly 410 is driven to one end of the second swing arm 409 away from the first swing arm 408; a grinding rod 411 is driven to the output end of the grinding drive assembly 410; a scanning camera 412 is provided on the outer wall of the grinding drive assembly 410; a second drive cavity 413 is provided inside the guide post 403; a second slider 414 is provided inside the second drive cavity 413; a second drive screw 415 is provided inside the second drive cavity 413; the second slider 414 is threadedly connected to the second drive screw 415 and is driven to the translation ring 405.

[0027] During the deburring of precision parts, the precision parts are fixed within the negative pressure limiting mechanism 5. Then, the drive screw 415 is rotated. Through the threaded connection between the drive screw 415 and the slider 414, the slider 414 drives the translation ring 405 to move horizontally. Subsequently, the rotating ring 406 rotates on the outer wall of the translation ring 405. The height of the grinding drive assembly 410 is adjusted via the drive seat 407, the first swing arm 408, and the second swing arm 409. Then, the angle of the grinding rod 411 is adjusted by the drive seat 407, the first swing arm 408, and the second swing arm 409. Simultaneously, the scanning camera 412 scans the shape of the precision parts, enabling the grinding rod 411 to precisely deburr the edges or bevels of precision parts of different shapes. This improves the machining accuracy of the CNC machine tool while enhancing the compatibility of the machining process.

[0028] For example, such as Figure 6 and Figure 7As shown, the negative pressure limiting mechanism 5 includes a guide seat 501; a guide groove 502 is provided on the top of the guide seat 501; a guide plate 503 is provided inside the guide groove 502; the side view cross-section of the guide plate 503 is fan-shaped and the central angle is greater than 180°; a drive groove 504 is provided on the outer wall of the guide plate 503; a negative pressure plate 505 is provided on the inner wall of the guide plate 503; two sets of permanent magnets 506 are symmetrically provided on the top of the guide seat 501; the side view cross-section of the negative pressure plate 505 is fan-shaped; a negative pressure protective cover 507 is provided on the inner wall of the negative pressure plate 505; a negative pressure protective cover 507 is provided on the side wall of the negative pressure protective cover 507 away from the negative pressure plate 505. The processing groove 508 has two sets of folding protective plates 509 symmetrically arranged on its inner walls on both sides; two sets of electric push rods 510 are symmetrically arranged at both ends of the inner wall of the negative pressure plate 505; a set of part limiting components 511 are connected to the output end of each set of electric push rods 510; an air guide cavity 512 is opened in the negative pressure plate 505; several sets of negative pressure grooves 513 are equally spaced on the inner wall of the negative pressure plate 505; a filter plate 514 is provided at the opening of each set of negative pressure grooves 513; the air guide cavity 512 is connected to several sets of negative pressure grooves 513, and the other end is connected to the hose reel 6; an anti-clogging cleaning component 515 is provided in the negative pressure plate 505.

[0029] During the deburring of precision parts, the precision parts are fixed within a set of lower part limiting components 511. When the deburring mechanism 4 deburrs the precision parts, the air pump connects to the air guide chamber 512 via the hose reel 6, causing several sets of negative pressure grooves 513 to draw in air. This creates a negative pressure area within the space between the negative pressure plate 505 and the negative pressure protective cover 507, preventing the part debris generated during deburring from dispersing into the air. After one end of the precision part is processed, it can be alternately fixed by the upper part limiting components 511. Then, the control guide plate 503 moves the upper part limiting components 511 to the lower part, causing the part to flip, eliminating the need for manual flipping. Finally, after the deburring is completed, the two sets of folding protective plates 509 can be pulled out to form a closed space, preventing the limiting mechanism from being directly exposed to the external space. This not only improves the dustproof and protective effect of the CNC machine tool but also increases the efficiency of the processing work.

[0030] For example, such as Figure 8 and Figure 9As shown, the part limiting assembly 511 includes a limiting seat 5111; the top view of the limiting seat 5111 is a regular octagon; the top of the limiting seat 5111 has four sets of sliding grooves 5112 arranged in a circular array; each set of sliding grooves 5112 is provided with a limiting rod 5113; each set of limiting rods 5113 is provided with a pressure sensor; a set of drive motors 5114 are respectively provided on the four side walls of the limiting seat 5111; the limiting seat 5111 is provided with a driving cavity 5115; the driving cavity 5115... A connecting post 2 5116 is provided at the center of 15; the output end of each set of drive motors 5114 extends into the drive cavity 3 5115 and is connected to a set of drive screws 3 5117; the other end of each set of drive screws 3 5117 is rotatably connected to the side wall of the connecting post 2 5116; four sets of sliders 3 5118 are arranged in a ring array inside the drive cavity 3 5115; each set of sliders 3 5118 is threadedly connected to a corresponding set of drive screws 3 5117 and is connected to a corresponding set of limit rods 5113.

[0031] The limiting seat 5111 of the part limiting assembly 511 has a regular octagonal cross-section when viewed from above. Each of the four side walls arranged in a ring array is equipped with a set of drive motors 5114. By controlling the drive motors 5114 to drive the corresponding drive screws 5117 to rotate, the four sets of sliders 5118 can drive the four sets of limiting rods 5113 to abut against the outer or inner wall of the precision part, forming an internal support or external fixation limiting method for the precision part. At the same time, each limiting rod 5113 is equipped with a pressure sensor, which can automatically adjust the contact pressure. The two sets of part limiting assemblies 511 are arranged opposite each other, and the eight sets of limiting rods 5113 are staggered, so that alternating clamping and limiting work can be performed, which improves the limiting effect of CNC equipment and the compatibility of limiting work.

[0032] For example, such as Figure 10 As shown, the anti-clogging cleaning component 515 includes two sets of symmetrically arranged permanent magnets 5151; each set of permanent magnets 5151 has several sets of balls 5152 evenly distributed at its bottom; two sets of sliding grooves 5153 are symmetrically opened on the opposite side wall of the two sets of permanent magnets 5151; an installation plate 5154 is provided between the two sets of sliding grooves 5153; several sets of sliding grooves 5155 are opened at the bottom of the installation plate 5154; sliding rods 5156 are slidably connected in the several sets of sliding grooves 5155; a scraper 5157 is provided at the bottom of the sliding rod 5156; and a set of scrapers 5158 are elastically rotatably connected to both ends of the bottom of the sliding rod 5156.

[0033] Both sets of permanent magnets 5151 have several sets of ball bearings evenly distributed at their bottoms, allowing them to slide on the inner wall of the negative pressure plate 505. Simultaneously, under the magnetic attraction of the permanent magnets 506 on both sides, the two sets of permanent magnets 5151 remain directly below the inner wall of the negative pressure plate 505 during its movement. The scraper 5157 and the two sets of scrapers 5158 scrape away the debris adhering to the filter plate 514, preventing debris from clogging the filter plate 514 and reducing the negative pressure effect. Furthermore, the scraper 5157 and the two sets of scrapers 5158 can slide and rotate to avoid obstruction by the two sets of electric push rods 510, improving both the working stability of the CNC equipment and the debris collection efficiency.

[0034] By controlling the translation ring 405 to move horizontally, and then controlling the rotating ring 406 to rotate on the outer wall of the translation ring 405, the grinding drive assembly 410 is adjusted in height by the drive seat 407, the first swing arm 408 and the second swing arm 409. Then, the angle of the grinding rod 411 is adjusted by the drive seat 407, the first swing arm 408 and the second swing arm 409. At the same time, the shape of the precision parts can be scanned by the scanning camera 412, so that the grinding rod 411 can accurately deburr the edges or bevels of precision parts of different shapes. This improves the machining accuracy of the CNC machine tool and the compatibility of the machining work.

[0035] The air pump connects to the air guide chamber 512 via the hose reel 6, enabling several sets of negative pressure grooves 513 to draw in air. This creates a negative pressure zone within the space of the negative pressure plate 505 and the negative pressure protective cover 507, preventing part debris generated during deburring from dispersing into the air. After one end of the precision part is machined, the upper part limiting component 511 can be used to alternately fix the precision part. Then, the control guide plate 503 moves the upper part limiting component 511 to the lower part, causing the part to flip. This avoids the need for manual flipping of the part. Finally, after the deburring is completed, the two sets of folding protective plates 509 can be pulled out to form a closed space, preventing the limiting mechanism from being directly exposed to the external space. This not only improves the dustproof and protective effect of the CNC machine tool but also increases the efficiency of the machining process.

[0036] The limiting seat 5111 of the part limiting assembly 511 has a regular octagonal cross-section when viewed from above. Each of the four side walls arranged in a ring array is equipped with a set of drive motors 5114. By controlling the drive motors 5114 to drive the corresponding drive screws 5117 to rotate, the four sets of sliders 5118 can drive the four sets of limiting rods 5113 to abut against the outer or inner wall of the precision part, forming an internal support or external fixation limiting method for the precision part. At the same time, each limiting rod 5113 is equipped with a pressure sensor, which can automatically adjust the contact pressure. The two sets of part limiting assemblies 511 are arranged opposite each other, and the eight sets of limiting rods 5113 are staggered, so that alternating clamping and limiting work can be performed, which improves the limiting effect of CNC equipment and the compatibility of limiting work.

[0037] Both sets of permanent magnets 5151 have several sets of ball bearings evenly distributed at their bottoms, allowing them to slide on the inner wall of the negative pressure plate 505. Simultaneously, under the magnetic attraction of the permanent magnets 506 on both sides, the two sets of permanent magnets 5151 remain directly below the inner wall of the negative pressure plate 505 during its movement. The scraper 5157 and the two sets of scrapers 5158 scrape away the debris adhering to the filter plate 514, preventing debris from clogging the filter plate 514 and reducing the negative pressure effect. Furthermore, the scraper 5157 and the two sets of scrapers 5158 can slide and rotate to avoid obstruction by the two sets of electric push rods 510, improving both the working stability of the CNC equipment and the debris collection efficiency.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A general-purpose CNC machine tool suitable for machining precision parts, comprising a machining platform, characterized in that: The processing platform has two sets of support seats symmetrically arranged on its two side walls. The top of the two sets of support seats is equipped with a deburring mechanism; the top of the processing platform is equipped with a negative pressure limiting mechanism. The deburring mechanism includes two sets of symmetrically arranged electric push rods; two sets of connecting columns are symmetrically connected to the output ends of the two sets of electric push rods; a guide column is provided between the two sets of connecting columns; a translation ring is sleeved on the outer wall of the guide column; a rotating ring is sleeved on the outer wall of the translation ring; and a drive seat is provided on the outer wall of the rotating ring. A first swing arm is driven to one side wall of the drive seat; a second swing arm is driven to the end of the first swing arm away from the drive seat; a grinding drive assembly is driven to the end of the second swing arm away from the first swing arm; a grinding rod is driven to the output end of the grinding drive assembly; a scanning camera is provided on the outer wall of the grinding drive assembly.

2. The general-purpose CNC machine tool suitable for precision parts machining according to claim 1, characterized in that: Two sets of sliding grooves are symmetrically provided on both sides of the processing platform; two sets of support seats are symmetrically slidably connected in the two sets of sliding grooves; a tube reel is provided at one edge of the top of the processing platform; an air pump is provided inside the processing platform; one end of the tube reel is connected to a negative pressure limiting mechanism, and the other end is connected to the air pump; a drive chamber is provided inside the processing platform; a slider is provided inside the drive chamber; a drive screw is provided in the drive chamber; the slider is threadedly connected to the drive screw and is also connected to the two sets of support seats.

3. A general-purpose CNC machine tool suitable for precision parts machining according to claim 1, characterized in that: The guide post has a second sliding groove on its outer wall; the guide post has a second driving cavity; the second driving cavity has a second slider; the second driving cavity has a second driving screw; the second slider is threadedly connected to the second driving screw and is also connected to the translation ring drive.

4. A general-purpose CNC machine tool suitable for precision parts machining according to claim 1, characterized in that: The negative pressure limiting mechanism includes a guide seat; a guide groove is provided on the top of the guide seat; a guide plate is provided in the guide groove; the side view cross section of the guide plate is fan-shaped and the central angle is greater than 180°; a drive groove is provided on the outer wall of the guide plate; and a negative pressure plate is provided on the inner wall of the guide plate.

5. A general-purpose CNC machine tool suitable for precision parts machining according to claim 4, characterized in that: The top of the guide seat is symmetrically provided with two sets of permanent magnets; the side view of the negative pressure plate is a fan-shaped annular section; the inner wall of the negative pressure plate is provided with a negative pressure protective cover; a processing groove is opened on the side wall of the negative pressure protective cover away from the negative pressure plate; two sets of folding protective plates are symmetrically provided on the inner walls of both sides of the processing groove.

6. A general-purpose CNC machine tool suitable for precision parts machining according to claim 5, characterized in that: The inner wall of the negative pressure plate is symmetrically provided with two sets of electric push rods at both ends; each set of electric push rods is connected to a set of part limiting components at its output end; an air guide cavity is provided inside the negative pressure plate; several sets of negative pressure grooves are provided at equal intervals on the inner wall of the negative pressure plate; a filter plate is provided at the opening of each set of negative pressure grooves; the air guide cavity is connected to several sets of negative pressure grooves, and the other end is connected to the hose reel; an anti-clogging cleaning component is provided inside the negative pressure plate.

7. A general-purpose CNC machine tool suitable for precision parts machining according to claim 6, characterized in that: The part limiting assembly includes a limiting seat; the top view of the limiting seat is a regular octagon; the top of the limiting seat has four sets of sliding grooves arranged in a ring array; each set of sliding grooves has a set of limiting rods; each set of limiting rods has a set of pressure sensors.

8. A general-purpose CNC machine tool suitable for precision parts machining according to claim 7, characterized in that: A set of drive motors is provided on each of the four side walls of the limiting seat; a drive cavity three is provided inside the limiting seat; a connecting column two is provided at the center of the drive cavity three; the output end of each set of drive motors extends into the drive cavity three and is connected to a set of drive screws three; the other end of each set of drive screws three is rotatably connected to the side wall of the connecting column two.

9. A general-purpose CNC machine tool suitable for precision parts machining according to claim 8, characterized in that: The drive cavity three is provided with four sets of sliders three arranged in a ring array; each set of sliders three is threadedly connected to a corresponding set of drive screws three, and is also connected to a corresponding set of limit rods.

10. A general-purpose CNC machine tool suitable for precision parts machining according to claim 8, characterized in that: The anti-clogging cleaning component includes two sets of symmetrically arranged permanent magnets II; each set of permanent magnets II has several sets of balls evenly distributed at its bottom; two sets of sliding grooves IV are symmetrically opened on the opposite side wall of the two sets of permanent magnets II; an installation plate is provided between the two sets of sliding grooves IV; several sets of sliding grooves V are opened at the bottom of the installation plate; sliding rods are slidably connected in the several sets of sliding grooves V; a scraper I is provided at the bottom of the sliding rod; a set of scrapers II are elastically rotatably connected to both ends of the bottom of the sliding rod.

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