Numerical control machining table for granite lathe bed

Abstract

The invention discloses a numerical control machining table for a granite lathe bed, and belongs to the technical field of numerical control machining equipment.The numerical control machining table for the granite lathe bed comprises a machine tool base, a first guide rail is fixedly connected to the middle of the top end of the machine tool base, and a sliding saddle is slidably connected to the top end of the first guide rail; tool magazines are fixedly connected to the middles of the two sides of the machine tool base, a movable beam is fixedly connected between the top ends of the tool magazines, two main guide rails are arranged in the movable beam, and the bottom ends of the main guide rails are slidably connected with a six-head machining mechanism. Three-three symmetrical six-head machining mechanisms are adopted to form a six-head nine-shaft tool magazine for fine carving, each group of three-head machining mechanisms can operate independently and can also cooperate with one another to perform all-dimensional and multi-angle machining on a granite lathe bed, so that more complex and fine machining requirements are met, meanwhile, the machining period is greatly shortened, and the machining efficiency is improved. And the production efficiency is improved, and higher economic benefits are created for enterprises.

Description

Technical Field

[0001] The invention belongs to the technical field of numerical control processing equipment, and in particular relates to a numerical control processing table for a granite bed. Background Art

[0002] Granite has become the preferred material for machine tool bases due to its unique physical properties. Its excellent rigidity ensures that the machine tool can still maintain extremely high stability when subjected to cutting forces, thereby significantly improving processing accuracy. In addition, granite also has excellent vibration absorption capabilities, effectively reducing the vibration of the machine during operation, which is crucial for precision processing. Granite is not only easy to process into high-precision planes, but also becomes an ideal benchmark for precision measurement due to its excellent flatness. From the perspective of maintenance costs, granite has significant advantages due to its high wear resistance and easy maintenance, thereby extending its service life. At the same time, the production process of granite is relatively environmentally friendly, which is in line with the current policy orientation of a low-carbon economy.

[0003] Granite can often be customized according to needs to adapt to different machine tool designs. In this process, the processing and treatment of granite is particularly important. However, the granite processing machine tools on the current market generally have functional limitations. They are often equipped with only a single tool, resulting in low processing efficiency and high reliance on manual assisted operations. It is difficult to meet the urgent needs of modern industry for efficient and automated production lines. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a CNC machining table for a granite bed.

[0005] The technical solution adopted to solve the above technical problems is: a CNC machining table for a granite bed, comprising a machine tool base, a first guide rail is fixedly connected to the middle of the top of the machine tool base, a saddle is slidably connected to the top of the first guide rail, workbenches are slidably connected on both sides of the top of the saddle, granite is arranged between the two workbenches, a programming control box is arranged at one end of the machine tool base, a tool magazine is fixedly connected to the middle of both sides of the machine tool base, a moving beam is fixedly connected between the tops of the tool magazines, two main rails are arranged inside the moving beam, and a six-head machining mechanism is slidably connected to the bottom of the main rails.

[0006] Furthermore, the six-head processing mechanism is distributed symmetrically in threes, and the six-head processing mechanism includes a plurality of Z-shaped frames, the top of the Z-shaped frame is rotatably connected to a moving block, the top of the moving block is fixedly connected to an electric instrument rail, the electric instrument rail is slidably connected to the main rail, the top of one side of the Z-shaped frame is fixedly connected to a hydraulic push rod, the telescopic end of the hydraulic push rod is slidably connected to the bottom end of the Z-shaped frame, the telescopic end of the hydraulic push rod is fixedly connected to a rotating frame, the inner bottom end of the rotating frame is rotatably connected to a spindle motor, the rotating connection end of the spindle motor is provided with a convex column, and a tool is installed on the power interface at the bottom end of the spindle motor.

[0007] Through the above technical solution, a six-head processing mechanism with three-by-three symmetrical distribution is adopted to form a six-head nine-axis tool magazine for precision carving, which also greatly enhances the processing flexibility. Each group of three-head processing mechanisms can operate independently and cooperate with each other at the same time to perform all-round and multi-angle processing on the granite bed, thereby realizing more complex and sophisticated processing needs.

[0008] Furthermore, an electric guide rail is fixedly connected to the surface of one side of the rotating frame, a movable slider is slidably connected to the middle of the electric guide rail, a second push plate is fixedly connected to the surface of the movable slider, a second slide groove is provided at one end of the second push plate, a cylinder is slidably connected to the inner side of the second slide groove, a clamping column is fixedly connected to one end of the cylinder, and the clamping column is fixedly connected to the convex column at one end away from the cylinder.

[0009] Through the above technical solution, the tool angle can be adjusted by moving the slider precisely on the electric guide rail, so that multi-angle processing operations on granite can be achieved. This process is not only fast and accurate, but also greatly improves the processing accuracy and efficiency.

[0010] Furthermore, an electric door is provided on one surface of the inner side of the tool magazine, a fixed frame is fixedly connected to the inside of the tool magazine, a plurality of first slide grooves are fixedly connected to one end of the fixed frame, a C-type plate is slidably connected to the inner side of the first slide groove, a tooth groove is provided on one side of the C-type plate, a first gear is meshingly connected to one side of the tooth groove, a first motor is rotatably connected to the middle part of the first gear, a power output end of the first motor is fixedly connected to the first gear, and the first motor is fixedly connected to one side of the first slide groove.

[0011] Through the above technical solution, when the tool needs to be changed, the electric door opens, and the processing mechanism in the same row moves to the inside of the tool magazine through the main rail. The first motor drives the tool holder to rise and fall through the first gear and the tooth groove, and adjusts the tool placement rack of the corresponding height to the front of the assembly plate for automatic tool change.

[0012] Furthermore, a rotating column is rotatably connected to the inner side of the C-shaped plate, a plurality of tool placement racks are fixedly connected to the middle of the rotating column, the bottom end of the rotating column is rotatably connected to the C-shaped plate, a five-groove groove wheel is fixedly connected to the through end of the rotating column, a cam is meshingly connected to one side of the five-groove groove wheel, a motor fixing frame is rotatably connected to the surface of the cam, the motor fixing frame is fixedly connected to the C-shaped plate, a second motor is fixedly connected to the surface of the motor fixing frame, and a power output end of the second motor is fixedly connected to the cam.

[0013] Through the above technical solution, the second motor drives the rotating column to rotate with the help of the linkage mechanism of the groove wheel and the cam, and then places the tool at the specified position to ensure that the tool is accurately aligned with the assembly plate to facilitate the smooth selection of the tool.

[0014] Furthermore, a plurality of placement grooves are provided on the cylindrical surface of the tool placement rack, the placement grooves are fitted with the tool, the inner side of the placement grooves is rotatably connected with clamping teeth, a rotating shaft is fixedly connected between the clamping teeth, and a first push plate is fixedly connected to the cylindrical surface of the rotating shaft.

[0015] Through the above technical solution, the placement groove is used to store the tool, and the clamping teeth are used to fix the tool on the tool placement rack, which effectively prevents the tool from falling off and ensures the safety of the tool, so as to reduce property losses.

[0016] Furthermore, a hydraulic push column is fixedly connected to the middle part of the fixed frame, and the telescopic end of the hydraulic push column is fixedly connected to an assembly plate, and positioning rods are fixedly connected to both sides of the assembly plate, and a sleeve is slidably connected to the end of the positioning rod away from the positioning rod, and the sleeve is fixedly connected to the fixed frame, and a plurality of intersection grooves are provided on the side of the assembly plate close to the tool placement frame, and clamping blocks are slidably connected to the two sides of the inner side of the intersection groove, and a spring is fixedly connected to one end of the clamping block located inside the assembly plate, and the assembly plate is provided with protrusions fixedly connected to both sides of the intersection groove.

[0017] Through the above technical solution, the hydraulic push column pushes the assembly plate to contact the tool placement rack, the intersection groove and the tool sleeve are engaged, and the convex block at the front end of the assembly plate pushes the first push plate to rotate the clamping teeth to release the tool fixed on the tool placement rack. Then, the clamping block clamps the tool horizontally under the action of the spring, and finally the hydraulic push column returns to take the tool away from the tool placement rack. At this time, the processing mechanism inside the tool magazine sinks under the push of the hydraulic push rod, so that the spindle motor power interface and the tool interface are engaged to realize the loading of the tool. By reversing and repeating the above operations, the tool can be automatically replaced to meet different processing needs.

[0018] Furthermore, a hollow groove is provided in the middle part of the machine tool base, a third slide groove is provided at the bottom end of the slide saddle, the third slide groove is meshed and slidably connected with the first guide rail, a top plate is slidably connected to the middle part of the slide saddle, a top column is fixedly connected to the bottom end of the top plate, a cross groove is provided at the bottom end of the top column, a cross column is slidably connected to the inner side of the cross groove, a third motor is rotatably connected to the bottom end of the cross column, a power output end of the third motor is fixedly connected to the cross column, and the third motor is fixedly connected to the slide saddle.

[0019] Through the above technical solution, the saddle carries the granite into the six-head processing mechanism for processing. By adjusting the position of the saddle, the precise control of the processing path is achieved. At the same time, the third motor is connected to the cross column through a cross slot for sliding. When the top plate lifts the granite, it drives the granite to rotate, realizing flexible rotation adjustment and processing multiple sides of the granite, which greatly expands the operating flexibility and processing range of the processing table.

[0020] Furthermore, a plurality of annular convex strips are fixedly connected to the cylindrical surface of the top column, and the plurality of annular convex strips are arranged in an upper and lower array, and a second gear is meshingly connected to both sides of the plurality of annular convex strips for transmission, a transmission shaft is fixedly connected through the middle of the second gear, a fourth motor is rotatably connected to one end of the transmission shaft, a power output end of the fourth motor is fixedly connected to the transmission shaft, a reel is fixedly connected to the middle of the transmission shaft, a cross belt is frictionally connected between the reels, a square groove is provided on the saddle near one end of the transmission shaft, a square plate is slidably connected inside the square groove, and the middle of the square plate is threadedly connected to the threaded rod.

[0021] Through the above technical solution, the fourth motor drives the transmission shaft to rotate. This rotational power is converted into the vertical lifting movement of the top column through the precise engagement between the second gear and the annular convex strip, and at the same time drives the threaded rod to rotate. The square plate slides along the threaded rod in the square groove. This sliding drives the workbenches to move away from each other, releasing the fixed granite to facilitate the rotation of the granite.

[0022] Furthermore, several of the workbenches are symmetrically arranged, a groove is arranged on the top surface of the workbench, a fixed clamp is slidably connected to the inner side of the groove, and a leakage port is arranged at one end of the workbenches away from each other, and the leakage port is connected to the groove.

[0023] Through the above technical solution, the movable fixed clamp designed inside the groove not only ensures the firm clamping of granite of different sizes, but also greatly improves the flexibility and adaptability of processing, and ensures the stability and safety during the processing. The leakage port and the groove are connected to form an efficient debris discharge system. The generated debris and dust can be quickly discharged through the leakage port, effectively avoiding the influence of debris accumulation on the workbench and processing accuracy, and also reducing the burden of subsequent cleaning work.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention adopts three-by-three symmetrically distributed six-head processing mechanisms to form a six-head nine-axis tool magazine for precision carving, which greatly enhances the processing flexibility. Each group of three-head processing mechanisms can operate independently and cooperate with each other to perform all-round and multi-angle processing on the granite bed, thereby realizing more complex and sophisticated processing requirements. The mode of six heads working at the same time greatly shortens the processing cycle, improves production efficiency, and creates higher economic benefits for the enterprise.

[0026] 2. The present invention cooperates with the rotatable and liftable tool placement rack and the assembly plate. The tool placement rack adopts a high-precision rotating mechanism to ensure that the tool can be accurately positioned at the specified position during the tool change process, avoiding processing errors caused by tool position deviation. At the same time, the assembly plate can flexibly replace different types of tool modules according to different processing requirements, realizing rapid switching and adaptation of tools, further improving the flexibility and adaptability of the processing table. During the processing, the six-head processing mechanism automatically adjusts the tool according to the preset processing path and depth to ensure that each cutting, drilling or engraving is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a single processing mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the tool changing structure of the present invention;

[0031] Figure 5 It is an overall schematic diagram of the tool magazine structure of the present invention;

[0032] Figure 6 is a schematic diagram of a single tool holder structure from a first viewing angle of the present invention;

[0033] Figure 7 is a schematic diagram of a single tool holder structure of the present invention from a second viewing angle;

[0034] Figure 8 It is a schematic diagram of the structure of the tool placement rack of the present invention;

[0035] Fig. 9 It is a schematic cross-sectional view of the tool handover structure of the present invention;

[0036] Fig.10 It is a schematic diagram of the granite fixing structure of the present invention;

[0037] Fig.11 is a first cross-sectional schematic diagram of the granite fixing structure of the present invention;

[0038] Fig.12 It is a second cross-sectional schematic diagram of the granite fixing structure of the present invention.

[0039] 1. Machine tool base; 101. Hollow groove; 2. First guide rail; 3. Tool magazine; 301. Fixed frame; 302. First slide groove; 303. C-type plate; 304. Assembly plate; 305. First motor; 306. First gear; 307. Rotating column; 308. Tool placement frame; 309. Hydraulic push column; 310. Positioning rod; 311. Sleeve; 312. Tooth groove; 313. Cam; 314. Second motor; 315. Motor fixed frame; 316. Five-groove groove wheel; 317. Placement groove; 318. Clamping teeth; 319. Rotating shaft; 320. First push plate; 321. Intersection groove; 322. Clamping block; 323. Spring; 324. Bump; 4. Moving beam; 401. Main guide rail; 5. Six-head processing mechanism; 501. Z-type frame; 502. Moving block; 503. Hydraulic Push rod; 504, rotating frame; 505, spindle motor; 506, convex column; 507, clamping column; 508, cylinder; 509, second slide; 510, second push plate; 511, moving slider; 512, electric guide rail; 513, electric instrument rail; 6, saddle; 601, third slide; 602, top plate; 603, top column; 604, cross column; 605, cross groove; 606, third motor; 607, annular convex strip; 608, second gear; 609, transmission shaft; 610, threaded rod; 611, square groove; 612, reel; 613, cross belt; 614, fourth motor; 7, programming control box; 8, workbench; 801, groove; 802, leak; 803, square plate; 9, granite; 10, electric door; 11, fixed splint; 12, tool. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] like Figures 1 to 12As shown, a CNC machining table for a granite bed body in this embodiment includes a machine tool base 1, a first guide rail 2 is fixedly connected to the middle of the top of the machine tool base 1, a saddle 6 is slidably connected to the top of the first guide rail 2, workbenches 8 are slidably connected to the two sides of the top of the saddle 6, and granite 9 is arranged between the two workbenches 8. A programming control box 7 is arranged at one end of the machine tool base 1, a tool magazine 3 is fixedly connected to the middle of both sides of the machine tool base 1, and a moving beam 4 is fixedly connected between the tops of the tool magazines 3. The machine tool base 1 and the moving beam 4 both adopt an integral granite 9 structure, two main guide rails 401 are arranged inside the moving beam 4, and a six-head machining mechanism 5 is slidably connected to the bottom end of the main guide rail 401. The six-head machining mechanism 5 is symmetrically distributed in a three-by-three manner to form a six-head nine-axis tool magazine 3 precision engraving machine structure, which greatly enhances the machining flexibility.

[0042] like Figures 2 to 3 As shown, the six-head processing mechanism 5 is symmetrically distributed in threes, and the six-head processing mechanism 5 includes a plurality of Z-shaped frames 501. The top of the Z-shaped frame 501 is rotatably connected to a moving block 502, and the top of the moving block 502 is fixedly connected to an electric instrument rail 513. The electric instrument rail 513 is slidably connected to the main rail 401. A hydraulic push rod 503 is fixedly connected to the top of one side of the Z-shaped frame 501. The telescopic end of the hydraulic push rod 503 is slidably connected to the bottom end of the Z-shaped frame 501. The telescopic end of the hydraulic push rod 503 is fixedly connected to a rotating frame 504. The inner bottom end of the rotating frame 504 is rotatably connected to a spindle motor 505. A convex column 506 is provided at the rotating connection end of the spindle motor 505. A tool 12 is installed on the power interface at the bottom end of the spindle motor 505. Each processing mechanism can operate independently and cooperate with each other to perform all-round and multi-angle processing on the granite 9, thereby realizing more complex and sophisticated processing requirements.

[0043] like Figure 3 As shown, an electric guide rail 512 is fixedly connected to the surface of one side of the rotating frame 504, a movable slider 511 is slidably connected to the middle of the electric guide rail 512, a second push plate 510 is fixedly connected to the surface of the movable slider 511, a second slide groove 509 is arranged at one end of the second push plate 510, a cylinder 508 is slidably connected to the inner side of the second slide groove 509, a clamping column 507 is fixedly connected to one end of the cylinder 508, and the clamping column 507 is fixedly connected to the protruding column 506 at one end away from the cylinder 508. The precise sliding of the movable slider 511 on the electric guide rail 512 can realize the adjustment of the angle of the tool 12, and realize the multi-angle processing operation of the granite 9.

[0044] like Figures 4 to 5As shown, the tool magazine 3 is provided with an electric door 10 on one side surface of the interior, a fixed frame 301 is fixedly connected to the interior of the tool magazine 3, one end of the fixed frame 301 is fixedly connected to a plurality of first slide grooves 302, a C-type plate 303 is slidably connected to the inner side of the first slide groove 302, a tooth groove 312 is provided on one side of the C-type plate 303, a first gear 306 is meshingly connected to one side of the tooth groove 312, a first motor 305 is rotatably connected to the middle part of the first gear 306, a power output end of the first motor 305 is fixedly connected to the first gear 306, the first motor 305 is fixedly connected to one side of the first slide groove 302, the first motor 305 drives the C-type plate 303 to rise and fall through the first gear 306 and the tooth groove 312, and adjusts the placement rack of the tool 12 of the corresponding height to the front of the assembly plate 304 for automatic tool change.

[0045] like Figure 6 to Figure 7 As shown, a rotating column 307 is rotatably connected to the inner side of the C-type plate 303, and a plurality of tool placement racks 308 are fixedly connected to the middle part of the rotating column 307. The bottom end of the rotating column 307 is rotatably connected to the C-type plate 303 through the rotating column 307, and a five-slot groove wheel 316 is fixedly connected to the through end of the rotating column 307. A cam 313 is meshingly connected to one side of the five-slot groove wheel 316 for transmission. A motor fixing frame 315 is rotatably connected to the surface of the cam 313. The motor fixing frame 315 is fixedly connected to the C-type plate 303, and a second motor 314 is fixedly connected to the surface of the motor fixing frame 315. The power output end of the second motor 314 is fixedly connected to the cam 313. The second motor 314 drives the rotating column 307 to rotate by means of the linkage mechanism between the five-slot groove wheel 316 and the cam 313. Subsequently, the tool 12 is placed at a specified position to ensure that the tool 12 is accurately aligned with the assembly plate 304, so as to smoothly carry out the selection operation of the tool 12.

[0046] like Figures 8 to 9 As shown, a plurality of placement grooves 317 are provided on the cylindrical surface of the tool placement rack 308, and the placement grooves 317 are fitted with the tool 12. A clamping tooth 318 is rotatably connected to the inner side of the placement groove 317, and a rotating shaft 319 is fixedly connected between the clamping teeth 318. A first push plate 320 is fixedly connected to the cylindrical surface of the rotating shaft 319. The clamping teeth 318 are used to fix the tool 12 on the tool placement rack 308, which effectively prevents the tool 12 from falling off and ensures the safety of the tool 12, so as to reduce property losses.

[0047] like Figures 5 to 9As shown, a hydraulic push column 309 is fixedly connected to the middle part of the fixed frame 301, and the telescopic end of the hydraulic push column 309 is fixedly connected to the assembly plate 304, and positioning rods 310 are fixedly connected on both sides of the assembly plate 304. The positioning rod 310 away from the positioning rod 310 is penetrated by a sleeve 311 for sliding connection, and the sleeve 311 is fixedly connected to the fixed frame 301. A plurality of intersection grooves 321 are provided on the side of the assembly plate 304 close to the tool placement frame 308, and clamping blocks 322 are slidably connected on both sides of the inner side of the intersection groove 321. One end of the clamping block 322 located inside the assembly plate 304 is fixedly connected with a spring 323. The assembly plate 304 is provided with protrusions 324 fixedly connected on both sides of the intersection groove 321. The protrusion 324 at the front end of the assembly plate 304 pushes the first push plate 320, so that the clamping teeth 318 rotate, and the tool 12 fixed on the tool placement frame 308 is released.

[0048] like Figure 2 and Fig.10 As shown, a hollow groove 101 is provided in the middle of the machine tool base 1, a third slide groove 601 is provided at the bottom end of the slide saddle 6, the third slide groove 601 is meshed and slidably connected with the first guide rail 2, a top plate 602 is slidably connected to the middle of the slide saddle 6, a top column 603 is fixedly connected to the bottom end of the top plate 602, a cross groove 605 is provided at the bottom end of the top column 603, a cross column 604 is slidably connected to the inner side of the cross groove 605, a third motor 606 is rotatably connected to the bottom end of the cross column 604, a power output end of the third motor 606 is fixedly connected to the cross column 604, and the third motor 606 is fixedly connected to the slide saddle 6. By adjusting the position of the slide saddle 6, the precise control of the processing path is achieved, and flexible adjustment is achieved, so that multiple sides of the granite 9 can be processed, which greatly expands the operating flexibility and processing range of the processing table.

[0049] like Figure 11 to Figure 12 As shown, a plurality of annular convex strips 607 are fixedly connected to the cylindrical surface of the top column 603, and the plurality of annular convex strips 607 are arranged in an upper and lower array. The second gear 608 is meshed and transmission-connected on both sides of the plurality of annular convex strips 607. A transmission shaft 609 is fixedly connected through the middle of the second gear 608, and a fourth motor 614 is rotationally connected to one end of the transmission shaft 609. A power output end of the fourth motor 614 is fixedly connected to the transmission shaft 609, and a reel 612 is fixedly connected to the middle of the transmission shaft 609. A cross belt 613 is frictionally connected between the reels 612. A square groove 611 is provided near one end of the saddle 6 near the transmission shaft 609, and a square plate 803 is slidably connected inside the square groove 611. The middle of the square plate 803 is threadedly connected to the threaded rod 610, and the square plate 803 slides along the threaded rod 610 in the square groove 611. This sliding drives the workbenches 8 to move away from each other, releases the fixed granite 9, and facilitates the rotation of the granite 9.

[0050] like Fig.10As shown, several workbenches 8 are symmetrically arranged, and a groove 801 is arranged on the top surface of the workbench 8, and a fixed clamp 11 is slidably connected to the inner side of the groove 801. The movable fixed clamp 11 designed inside the groove 801 not only ensures the firm clamping of granite 9 of different sizes, but also greatly improves the flexibility and adaptability of processing, and ensures the stability and safety during the processing. A leakage port 802 is arranged at one end of the workbench 8 away from each other, and the leakage port 802 is connected with the groove 801, so that the generated debris and dust can be quickly discharged through the leakage port 802, which effectively avoids the influence of debris accumulation on the workbench 8 and processing accuracy, and also reduces the burden of subsequent cleaning work.

[0051] The working principle of this embodiment is as follows:

[0052] The staff moves the whole granite 9 onto the slide saddle 6, fixes the fixed clamping plate 11 in the groove 801, and programs the processing steps through the programming control box 7. Then the fourth motor 614 drives the transmission shaft 609 inside the slide saddle 6 to rotate, and the threaded rod 610 at the front end of the transmission shaft 609 pushes the square plate 803 threadedly connected to it to move, so that the two workbenches 8 are close to each other, and the fixed clamping plate 11 clamps and fixes the granite 9. The slide saddle 6 is pushed by the first guide rail 2 to move to the six-head processing mechanism 5 to prepare for processing operations, and the hydraulic push column 309 pushes the assembly plate 304 and the tool placement rack 3 08 contacts, the intersection groove 321 is engaged with the tool sleeve, the convex block 324 at the front end of the assembly plate 304 pushes the first push plate 320, so that the clamping tooth 318 rotates, and the tool 12 fixed on the tool placement rack 308 is released, and then the clamping block 322 clamps the tool 12 horizontally under the action of the spring 323, and finally the hydraulic push column 309 returns to take the tool 12 away from the tool placement rack 308. At this time, the processing mechanism inside the tool magazine 3 sinks under the push of the hydraulic push rod 503, so that the power interface of the spindle motor 505 is fitted with the interface of the tool 12, so that the loading of the tool 12 is realized, and the above operation can be realized by reversing and repeating. The tool 12 can be automatically replaced to meet different processing requirements. The angle of the tool 12 can be adjusted by accurately sliding the moving slider 511 on the electric guide rail 512, so that the granite 9 can be processed at multiple angles. Not only can the top surface of the granite 9 be processed, but also the side can be processed. When the side processing is completed, the saddle 6 moves to one end. At this time, the fourth motor 614 drives the transmission shaft 609 to rotate. This rotational power is converted into the vertical lifting movement of the top column 603 through the precise meshing between the second gear 608 and the annular convex strip 607, and the granite 9 is initially lifted. At the same time, The threaded rod 610 is driven to rotate, and the square plate 803 slides along the threaded rod 610 in the square groove 611. This sliding drives the workbenches 8 to move away from each other and release the fixed granite 9. At the same time, the third motor 606 is slidably connected to the cross column 604 through the cross groove 605. When the top plate 602 lifts up the granite 9, it drives the granite 9 to rotate. After rotating 90 degrees, the fourth motor 614 reverses, and the granite 9 sinks and is fixed, so that the processing machine tool can realize flexible rotation adjustment of the granite 9 and can process multiple sides of the granite 9, which greatly expands the operating flexibility and processing range of the processing table.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A CNC machining table for a granite bed, comprising a machine tool base (1), characterized in that: A first guide rail (2) is fixedly connected to the middle of the top of the machine tool base (1), a saddle (6) is slidably connected to the top of the first guide rail (2), workbenches (8) are slidably connected to the two sides of the top of the saddle (6), and granite (9) is arranged between the two workbenches (8). A programming control box (7) is arranged at one end of the machine tool base (1), a tool magazine (3) is fixedly connected to the middle of the two sides of the machine tool base (1), and a moving beam (4) is fixedly connected between the tops of the tool magazines (3), two main guide rails (401) are arranged inside the moving beam (4), and a six-head processing mechanism (5) is slidably connected to the bottom of the main guide rail (401); The six-head processing mechanism (5) is symmetrically distributed in threes, and comprises a plurality of Z-shaped frames (501). The top of the Z-shaped frame (501) is rotatably connected to a moving block (502), the top of the moving block (502) is fixedly connected to an electric instrument rail (513), the electric instrument rail (513) is slidably connected to the main rail (401), the top of one side of the Z-shaped frame (501) is fixedly connected to a hydraulic push rod (503), the telescopic end of the hydraulic push rod (503) is slidably connected to the bottom of the Z-shaped frame (501), the telescopic end of the hydraulic push rod (503) is fixedly connected to a rotating frame (504), the inner bottom end of the rotating frame (504) is rotatably connected to a spindle motor (505), the rotating connection end of the spindle motor (505) is provided with a convex column (506), and the power interface at the bottom end of the spindle motor (505) is installed with a tool (12); An electric guide rail (512) is fixedly connected to the surface of one side of the rotating frame (504), a movable slider (511) is slidably connected to the middle of the electric guide rail (512), a second push plate (510) is fixedly connected to the surface of the movable slider (511), a second slide groove (509) is provided at one end of the second push plate (510), a cylinder (508) is slidably connected inside the second slide groove (509), a clamping column (507) is fixedly connected to one end of the cylinder (508), and an end of the clamping column (507) away from the cylinder (508) is fixedly connected to the protruding column (506).

2. A CNC machining table for a granite bed according to claim 1, characterized in that: The tool magazine (3) is provided with an electric door (10) on one side surface of the interior, and a fixed frame (301) is fixedly connected inside the tool magazine (3), and one end of the fixed frame (301) is fixedly connected to a plurality of first slide grooves (302), and a C-shaped plate (303) is slidably connected to the inside of the first slide groove (302), and a tooth groove (312) is provided on one side of the C-shaped plate (303), and a first gear (306) is meshingly connected to one side of the tooth groove (312), and a first motor (305) is rotatably connected to the middle part of the first gear (306), and a power output end of the first motor (305) is fixedly connected to the first gear (306), and the first motor (305) is fixedly connected to one side of the first slide groove (302).

3. A CNC machining table for a granite bed according to claim 2, characterized in that: A rotating column (307) is rotatably connected to the inner side of the C-shaped plate (303), a plurality of tool placement racks (308) are fixedly connected to the middle of the rotating column (307), the bottom end of the rotating column (307) is rotatably connected to the C-shaped plate (303), a five-groove sheave (316) is fixedly connected to the through end of the rotating column (307), a cam (313) is meshingly connected to one side of the five-groove sheave (316), a motor fixing frame (315) is rotatably connected to the surface of the cam (313), the motor fixing frame (315) is fixedly connected to the C-shaped plate (303), a second motor (314) is fixedly connected to the surface of the motor fixing frame (315), and a power output end of the second motor (314) is fixedly connected to the cam (313).

4. A CNC machining table for a granite bed according to claim 3, characterized in that: The cylindrical surface of the tool placement rack (308) is provided with a plurality of placement grooves (317), the placement grooves (317) are fitted with the tool (12), the inner side of the placement grooves (317) is rotatably connected with clamping teeth (318), a rotating shaft (319) is fixedly connected between the clamping teeth (318), and the cylindrical surface of the rotating shaft (319) is fixedly connected with a first push plate (320).

5. The CNC machining table for a granite bed according to claim 2, characterized in that: A hydraulic push column (309) is fixedly connected to the middle of the fixed frame (301), and the telescopic end of the hydraulic push column (309) is fixedly connected to the assembly plate (304). Positioning rods (310) are fixedly connected to both sides of the assembly plate (304). A sleeve (311) is slidably connected to the end of the positioning rod (310) away from the positioning rod (310), and the sleeve (311) is fixedly connected to the fixed frame (301). A plurality of intersection grooves (321) are provided on the side of the assembly plate (304) close to the tool placement frame (308). Clamping blocks (322) are slidably connected to the two sides of the inner side of the intersection groove (321), and one end of the clamping block (322) located inside the assembly plate (304) is fixedly connected to a spring (323). The assembly plate (304) is provided with projections (324) fixedly connected to both sides of the intersection groove (321).

6. The CNC machining table for a granite bed according to claim 1, characterized in that: A hollow groove (101) is provided in the middle of the machine tool base (1), a third slide groove (601) is provided at the bottom end of the slide saddle (6), the third slide groove (601) is meshed and slidably connected with the first guide rail (2), a top plate (602) is slidably connected in the middle of the slide saddle (6), a top column (603) is fixedly connected at the bottom end of the top plate (602), a cross groove (605) is provided at the bottom end of the top column (603), a cross column (604) is slidably connected inside the cross groove (605), a third motor (606) is rotatably connected at the bottom end of the cross column (604), a power output end of the third motor (606) is fixedly connected to the cross column (604), and the third motor (606) is fixedly connected to the slide saddle (6).

7. A CNC machining table for a granite bed according to claim 6, characterized in that: A plurality of annular convex strips (607) are fixedly connected to the cylindrical surface of the top column (603), and the plurality of annular convex strips (607) are arranged in an up-and-down array. The two sides of the plurality of annular convex strips (607) are meshed and transmission-connected with a second gear (608). A transmission shaft (609) is fixedly connected through the middle of the second gear (608), and one end of the transmission shaft (609) is rotationally connected to a fourth motor (614), and the fourth motor (614) is powered The output end is fixedly connected to the transmission shaft (609), a reel (612) is fixedly connected to the middle of the transmission shaft (609), a cross belt (613) is frictionally connected between the reels (612), a square groove (611) is provided at one end of the saddle (6) close to the transmission shaft (609), a square plate (803) is slidably connected inside the square groove (611), and the middle of the square plate (803) is threadedly connected to the threaded rod (610).

8. The CNC machining table for a granite bed according to claim 1, characterized in that: A plurality of the workbenches (8) are symmetrically arranged, a groove (801) is arranged on the top surface of the workbenches (8), a fixed clamping plate (11) is slidably connected inside the groove (801), and a leakage port (802) is arranged at one end of the workbenches (8) away from each other, and the leakage port (802) is connected to the groove (801).

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