A numerical control cutting-off machine for cemented carbide rod for cutting tool

Abstract

The application relates to the technical field of machining, in particular to a hard alloy bar numerical control cutting-off machine for cutter machining, one side of a working bottom box is fixedly connected with a protection main box, the other side of the working bottom box is fixedly connected with a protection side box, a fixed top box is fixedly connected between the protection main box and the protection side box, a cutting-off cylinder is fixedly connected to the inner sides of the protection main box and the protection side box, a fixed pressing plate is fixedly connected to the top of the cutting-off cylinder, four protection frames are fixedly connected to the top of the fixed pressing plate, protection sliding blocks are slidably connected to the inner sides of the two protection frames respectively, fixed clamping blocks are fixedly connected to the bottom of the fixed top box and the top of the protection sliding blocks respectively, the fixed distance feeding, pressing, fixing and cutting-off machining of the hard alloy bar can be automatically completed, manual repeated positioning adjustment is not needed, and the efficiency and size precision of the hard alloy bar cutting-off machining are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a CNC cutting machine for cemented carbide bars used in cutting tools. Background Technology

[0002] Carbide bars are the core raw material for manufacturing cutting tools and wear-resistant tools. In the tool processing process, long carbide bars need to be cut into segments of a set length according to the specifications of the finished tool before further processing.

[0003] Traditional carbide bar cutting is mostly done using ordinary sawing equipment. The process requires manual operation of loading, positioning, and clamping, which is not only inefficient but also results in poor positioning accuracy. In addition, the cutting blades are easily damaged and difficult to replace. Therefore, this invention provides a CNC cutting machine for carbide bars for tool processing. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC cutting machine for cemented carbide bars used in cutting tools, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this invention is: a CNC cutting machine for cemented carbide bars for tool processing, comprising a working base box, a protective main box fixedly connected to one side of the working base box, a protective side box fixedly connected to the other side of the working base box, a fixed top box fixedly connected between the protective main box and the protective side box, a cutting cylinder fixedly connected to the inner side of the protective main box and the protective side box, a fixed pressure plate fixedly connected to the top of the cutting cylinder, four protective frames fixedly connected to the top of the fixed pressure plate, protective sliders slidably engaged on the inner sides of two of the protective frames, fixed clamping blocks fixedly connected to the bottom of the fixed top box and the top of the protective sliders, an auxiliary rotating plate rotatably connected between the two fixed clamping blocks, a cutting blade slidably engaged on the inner side of the fixed pressure plate, a top pull plate fixedly connected to the top of the cutting blade, a lower clamping block fixedly connected to the bottom of the fixed pressure plate, a fixed rotating shaft rotatably connected to the inner side of the lower clamping block, and two fixed rotating bars rotatably connected to the outer side of the fixed rotating shaft, with adjacent sides of the two fixed rotating bars rotating. The device is equipped with an inner mounting block, on one side of which an inner slider is fixedly connected. A pressure groove plate is slidably engaged on the outer side of the inner slider. An inner sliding shaft is fixedly connected to the inner side of the pressure groove plate, and the inner slider is slidably engaged on the outer side of the inner sliding shaft. A pressure spring is fixedly connected between the inner slider and the pressure groove plate. In use: The material to be cut is placed on top of the storage tray. During cutting, the cutting cylinder retracts, causing the fixed pressure plate to move downwards, which in turn moves the pressure groove plate downwards, pressing it against the top of the material for fixation. As the fixed pressure plate continues to move downwards, the fixed rotating bar rotates, causing the inner slider to slide inside the pressure groove plate. Buffered by the pressure spring, the cutting blade then contacts the material and cuts it. After completion, if the cutting blade needs to be replaced, the cutting cylinder extends to its maximum distance, the fixed pressure plate moves upwards, causing the auxiliary rotating plate to rotate, disengaging the protective slider from the top of the cutting blade. The top pull plate can then be removed for quick blade replacement. When the device returns to the center position, the protective slider presses against the top of the cutting blade.

[0006] Preferably, a storage rack is fixedly connected to the top of the working base box, a conveying rack is slidably engaged with the inner side of the storage rack, a conveying ball bearing is rotatably connected to the top of the conveying rack, a lifting motor is installed inside the working base box, a lifting shaft is fixedly connected to the output end of the lifting motor, a centrifugal disc is fixedly connected to the outer side of the lifting shaft, the centrifugal disc is located at the bottom of the conveying rack, a conveying top plate is fixedly connected to both ends of the conveying rack, and a side sliding column is fixedly connected to the bottom of the conveying top plate. The working base box has side base plates fixedly connected to both ends. A side sliding cylinder is fixedly connected to the top of the side base plates. A side sliding column is slidably engaged inside the side sliding cylinder. An internal spring is fixedly connected to the bottom of the side sliding column. Control boxes are fixedly connected to both sides of the protective main box. A material conveying motor is installed inside the control box. A material conveying shaft is fixedly connected to the output end of the material conveying motor. A threaded push plate is threadedly connected to the outer side of the material conveying shaft. A connecting slider is fixedly connected to one side of the threaded push plate. The threaded push plate and the connecting... The slider is slidably engaged with the inside of the control box. A material conveying plate is fixedly connected to the end of the slider away from the threaded push plate. Two matching sliding shafts are slidably engaged with the inner side of the material conveying plate. A material conveying pressing plate is fixedly connected to the bottom of each matching sliding shaft. A material conveying spring is fixedly connected between the material conveying pressing plate and the material conveying plate. The material conveying spring is movably sleeved on the outside of the matching sliding shaft. A matching top ring is fixedly connected to the top of the matching sliding shaft. In use: When material movement is required, the lifting motor is started, driving the centrifugal... The disc rotates, pushing the bottom of the conveying platen upwards, causing the conveying rollers to contact the bottom of the material, pushing the material to contact the bottom of the conveying pressing plate, thus fixing the material. An adaptive sliding shaft buffer is used to accommodate different materials. The conveying motor starts, and the threaded pusher plate moves, allowing the material to move at a fixed distance to cut to the required length. Afterwards, the centrifugal disc continues to rotate, causing the conveying platen to be pulled back by the internal spring, lowering it below the storage platen, and the material falls to the top of the storage platen.

[0007] This invention provides an improved CNC cutting machine for cemented carbide bars, which has the following improvements and advantages compared with the prior art:

[0008] Firstly, the present invention describes a CNC cutting machine for cemented carbide bars used in cutting tools. The material to be cut is placed on top of the storage rack. During cutting, the cutting cylinder retracts, causing the fixed pressure plate to move downwards and the pressure groove plate to move downwards, so that the pressure groove plate presses down on the top of the material for fixation. When the fixed pressure plate continues to move downwards, the fixed rotating bar will rotate, causing the inner slider to slide inside the pressure groove plate. Buffered by the pressure spring, the cutting blade then contacts the material for cutting. After completion, if the cutting blade needs to be replaced, the cutting cylinder extends to its maximum distance, the fixed pressure plate moves upwards, causing the auxiliary rotating plate to rotate, so that the protective slider disengages from the top of the cutting blade. Then, the top pull plate can be removed for quick cutting blade replacement. When returning to the center position, the protective slider presses down on the top of the cutting blade.

[0009] Secondly, the CNC cutting machine for cemented carbide bars for cutting tools described in this invention, when it is necessary to move the material, starts the lifting motor, drives the centrifugal disc to rotate, pushes the bottom of the conveying plate, causes the conveying plate to move up, and makes the conveying balls contact the bottom of the material, pushes the material to contact the bottom of the conveying pressing plate, and fixes the material. It can be adapted to different materials by using a sliding shaft buffer. When the conveying motor starts, the threaded pusher plate moves, and the material can be moved at a fixed distance to cut the required length. Afterwards, the centrifugal disc continues to rotate, and the conveying plate is pulled back by the spring in the cylinder, so that the conveying plate is lower than the storage plate, and the material falls to the top of the storage plate.

[0010] In summary, the CNC cutting machine for cemented carbide bars described in this invention can automatically complete the fixed-distance feeding, clamping, and cutting of cemented carbide bars without the need for repeated manual adjustments to the positioning, effectively improving the efficiency and dimensional accuracy of cemented carbide bar cutting. Simultaneously, the device can accommodate bars of different diameters for clamping and fixing, and provides flexible buffering during clamping to avoid hard contact that could cause bar breakage, reducing the probability of fracture defects. When the cutting blade wears out, the blade can be quickly replaced, shortening the equipment setup and maintenance time, and meeting the batch cutting needs of cemented carbide bars of various specifications. Attached Figure Description

[0011] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the working base box structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the cutting cylinder structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the fixed pressure plate structure of the present invention;

[0016] Figure 5 This is a schematic diagram of the fixed rotating strip structure of the present invention;

[0017] Figure 6 This is a schematic diagram of the material handling plate structure of the present invention;

[0018] Figure 7 This is a schematic diagram of the control box structure of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Working base box; 2. Control box; 3. Protective main box; 4. Protective side box; 5. Fixed top box; 6. Cutting cylinder; 7. Fixed pressure plate; 8. Protective frame; 9. Protective slider; 10. Fixed clamping block; 11. Auxiliary rotating plate; 12. Top pull plate; 13. Cutting blade; 14. Lower clamping block; 15. Fixed rotating shaft; 16. Fixed rotating strip; 17. Inner mounting block; 18. Pressure groove plate; 19. Inner slider; 20. Inner sliding shaft; 21. Storage rack; 22. 23. Side bottom plate; 24. Side sliding cylinder; 25. Side sliding column; 26. Inner cylinder spring; 27. Material conveying top plate; 28. Material conveying tray; 29. ​​Transport ball bearing; 30. Lifting motor; 31. Lifting shaft; 32. Centrifugal disc; 33. Material conveying motor; 34. Material conveying shaft; 35. Threaded push plate; 36. Connecting slider; 37. Material conveying pressure plate; 38. Adaptive sliding shaft; 39. Adaptive top ring; 40. Material conveying pressing plate; 41. Material conveying spring; 42. Pressure spring. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0022] This invention provides an improved CNC cutting machine for cemented carbide bars used in cutting tools. The technical solution of this invention is as follows:

[0023] like Figures 1-7As shown, a CNC cutting machine for cemented carbide bars for tool processing includes a working base box 1. A protective main box 3 is fixedly connected to one side of the working base box 1, and a protective side box 4 is fixedly connected to the other side of the working base box 1. A fixed top box 5 is fixedly connected between the protective main box 3 and the protective side box 4. A cutting cylinder 6 is fixedly connected to the inner side of the protective main box 3 and the protective side box 4. A fixed pressure plate 7 is fixedly connected to the top of the cutting cylinder 6. Four protective frames 8 are fixedly connected to the top of the fixed pressure plate 7. Protective sliders 9 are slidably engaged on the inner side of two of the protective frames 8. The fixed top box 5... The bottom of the fixed plate 7 and the top of the protective slider 9 are respectively fixedly connected to fixed clamping blocks 10. An auxiliary rotating plate 11 is rotatably connected between the two fixed clamping blocks 10. A cutting blade 13 is slidably engaged on the inner side of the fixed pressure plate 7. A top pull plate 12 is fixedly connected to the top of the cutting blade 13. A lower pressure clamping block 14 is fixedly connected to the bottom of the fixed pressure plate 7. A fixed rotating shaft 15 is rotatably connected to the inner side of the lower pressure clamping block 14. Two fixed rotating strips 16 are rotatably connected to the outer side of the fixed rotating shaft 15. An inner mounting block 17 is rotatably connected to the adjacent side of the two fixed rotating strips 16. An inner slider 19 is fixedly connected to the side, and a pressure trough plate 18 is slidably engaged with the outer side of the inner slider 19. An inner sliding shaft 20 is fixedly connected to the inner side of the pressure trough plate 18, and the inner slider 19 is slidably engaged with the outer side of the inner sliding shaft 20. A pressure spring 41 is fixedly connected between the inner slider 19 and the pressure trough plate 18. In use: the material to be cut is placed on top of the storage rack 21. When cutting, the cutting cylinder 6 retracts, causing the fixed pressure plate 7 to move downward, which in turn causes the pressure trough plate 18 to move downward, so that the pressure trough plate 18 presses down on top of the material. When the fixed pressure plate 7 continues to move downward, the fixed rotating bar 16 will rotate, causing the inner slider 19 to slide inside the pressure groove plate 18. The material is buffered by the pressure spring 41. Then the cutting blade 13 contacts the material to cut it. After completion, if the cutting blade 13 needs to be replaced, the cutting cylinder 6 extends to its maximum distance, the fixed pressure plate 7 moves upward, and the auxiliary rotating plate 11 rotates, causing the protective slider 9 to disengage from the top of the cutting blade 13. Then the top pull plate 12 can be removed, the cutting blade 13 can be quickly replaced, and when it returns to the center position, the protective slider 9 presses against the top of the cutting blade 13.

[0024] Furthermore, a storage rack 21 is fixedly connected to the top of the working base box 1. A conveying rack 27 is slidably engaged with the inner side of the storage rack 21. A conveying ball bearing 28 is rotatably connected to the top of the conveying rack 27. A lifting motor 29 is installed inside the working base box 1. A lifting shaft 30 is fixedly connected to the output end of the lifting motor 29. A centrifugal disc 31 is fixedly connected to the outer side of the lifting shaft 30. The centrifugal disc 31 is located at the bottom of the conveying rack 27. A conveying top plate 26 is fixedly connected to both ends of the conveying rack 27. A side sliding column 24 is fixedly connected to the bottom of the conveying top plate 26. Side base plates 22 are fixedly connected to both ends of the protective main box 3. A side sliding cylinder 23 is fixedly connected to the top of the side base plate 22. A side sliding column 24 is slidably engaged inside the side sliding cylinder 23. An internal spring 25 is fixedly connected to the bottom of the side sliding column 24. Control boxes 2 are fixedly connected to both sides of the protective main box 3. A material conveying motor 32 is installed inside the control box 2. A material conveying shaft 33 is fixedly connected to the output end of the material conveying motor 32. A threaded push plate 34 is threadedly connected to the outer side of the material conveying shaft 33. A connecting slider 35 is fixedly connected to one side of the threaded push plate 34. The threaded push plate 34 and the connecting slider 35 are slidably engaged in the control box 2. Inside the control box 2, a material conveying plate 36 is fixedly connected to the end of the connecting slider 35 away from the threaded push plate 34. Two matching sliding shafts 37 are slidably engaged on the inner side of the material conveying plate 36. A material conveying pressing plate 39 is fixedly connected to the bottom of the matching sliding shafts 37. A material conveying spring 40 is fixedly connected between the material conveying pressing plate 39 and the material conveying plate 36. The material conveying spring 40 is movably sleeved on the outer side of the matching sliding shafts 37. A matching top ring 38 is fixedly connected to the top of the matching sliding shafts 37. In use: When it is necessary to move materials, the lifting motor 29 is started, driving the centrifugal disc 31 to rotate and pushing the material conveying plate 36. The bottom of the material conveying plate 27 is moved upward, causing the transport ball bearing 28 to contact the bottom of the material, pushing the material to contact the bottom of the material conveying pressing plate 39, so that the material conveying pressing plate 39 fixes the material. The material conveying motor 32 is started, and the threaded pusher plate 34 is moved to move the material. The material can be moved at a fixed distance to cut the required length. Then the centrifugal disc 31 continues to rotate, causing the material conveying plate 27 to be pulled back by the inner spring 25, so that the material conveying plate 27 is lower than the storage plate 21, and the material falls to the top of the storage plate 21.

[0025] Working principle: In use: Place the material to be cut on top of the storage plate 21. During cutting, the cutting cylinder 6 retracts, causing the fixed pressure plate 7 to move downwards, which in turn moves the pressing groove plate 18 downwards, pressing the material on top of the material for fixation. As the fixed pressure plate 7 continues to move downwards, the fixed rotating bar 16 rotates, causing the inner slider 19 to slide inside the pressing groove plate 18. The material is buffered by the pressing spring 41. Then, the cutting blade 13 contacts the material and cuts it. After completion, if the cutting blade 13 needs to be replaced, the cutting cylinder 6 extends to its maximum distance, the fixed pressure plate 7 moves upwards, causing the auxiliary rotating plate 11 to rotate, disengaging the protective slider 9 from the top of the cutting blade 13. Then, the top pull plate 12 can be removed for quick replacement of the cutting blade 13. When the material returns to the center position, the protective slider 9 presses against the top of the cutting blade 13. When it is necessary to move the material, the lifting motor 29 is started, which drives the centrifugal disc 31 to rotate and pushes the bottom of the conveying plate 27, causing the conveying plate 27 to move upward. This causes the conveying ball bearings 28 to contact the bottom of the material and push the material to contact the bottom of the conveying pressing plate 39, thus fixing the material. The material is buffered by the adapter sliding shaft 37 to adapt to different materials. The conveying motor 32 is started, and the threaded pusher plate 34 is moved to move the material. The material can be moved at a fixed distance to cut the required length. Afterward, the centrifugal disc 31 continues to rotate, causing the conveying plate 27 to be pulled back by the inner spring 25, so that the conveying plate 27 is lower than the storage plate 21, and the material falls to the top of the storage plate 21.

[0026] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CNC cutting machine for cemented carbide bars used in cutting tools, comprising a working base (1), characterized in that: A protective main box (3) is fixedly connected to one side of the working base box (1), and a protective side box (4) is fixedly connected to the other side of the working base box (1). A fixed top box (5) is fixedly connected between the protective main box (3) and the protective side box (4). A cutting cylinder (6) is fixedly connected to the inner side of the protective main box (3) and the protective side box (4). A fixed pressure plate (7) is fixedly connected to the top of the cutting cylinder (6). Four protective frames (8) are fixedly connected to the top of the fixed pressure plate (7). A protective slider (9) is slidably engaged with the inner side of the two protective frames (8). A fixed clamping block (10) is fixedly connected to the bottom of the fixed top box (5) and the top of the protective slider (9). An auxiliary rotating plate (11) is rotatably connected between the two fixed clamping blocks (10). A cutting blade (13) is slidably engaged with the inner side of the fixed pressure plate (7). A top pull plate (12) is fixedly connected to the top of the cutting blade (13).

2. The CNC cutting machine for cemented carbide bars for tool processing according to claim 1, characterized in that: The bottom of the fixed pressure plate (7) is fixedly connected to a lower pressure clamp (14), the inner side of the lower pressure clamp (14) is rotatably connected to a fixed rotating shaft (15), the outer side of the fixed rotating shaft (15) is rotatably connected to two fixed rotating bars (16), and the adjacent side of the two fixed rotating bars (16) is rotatably connected to an inner mounting block (17).

3. A CNC cutting machine for cemented carbide bars for tool processing according to claim 2, characterized in that: An inner slider (19) is fixedly connected to one side of the inner mounting block (17). A pressure groove plate (18) is slidably engaged on the outer side of the inner slider (19). An inner sliding shaft (20) is fixedly connected to the inner side of the pressure groove plate (18). The inner slider (19) is slidably engaged on the outer side of the inner sliding shaft (20). A pressure spring (41) is fixedly connected between the inner slider (19) and the pressure groove plate (18).

4. A CNC cutting machine for cemented carbide bars for tool processing according to claim 3, characterized in that: The top of the working base box (1) is fixedly connected to a storage plate (21), and a material conveying plate (27) is slidably engaged on the inner side of the storage plate (21). A transport ball bearing (28) is rotatably connected to the top of the material conveying plate (27). A lifting motor (29) is installed on the inner side of the working base box (1). A lifting shaft (30) is fixedly connected to the output end of the lifting motor (29). A centrifugal disc (31) is fixedly connected to the outer side of the lifting shaft (30). The centrifugal disc (31) is located at the bottom of the material conveying plate (27).

5. A CNC cutting machine for cemented carbide bars for tool processing according to claim 4, characterized in that: The material conveying plate (27) is fixedly connected to the two ends of the material conveying plate (26), and the bottom of the material conveying plate (26) is fixedly connected to the side sliding column (24). The two ends of the working base box (1) are fixedly connected to the side bottom plate (22), and the top of the side bottom plate (22) is fixedly connected to the side sliding cylinder (23). The side sliding column (24) is slidably engaged inside the side sliding cylinder (23), and the bottom of the side sliding column (24) is fixedly connected to the inner spring (25).

6. A CNC cutting machine for cemented carbide bars for tool processing according to claim 1, characterized in that: The protective main box (3) is fixedly connected to the two sides of the control box (2). The control box (2) is equipped with a material conveying motor (32). The output end of the material conveying motor (32) is fixedly connected to a material conveying shaft (33). The outer side of the material conveying shaft (33) is threadedly connected to a threaded push plate (34). A connecting slider (35) is fixedly connected to one side of the threaded push plate (34). The threaded push plate (34) and the connecting slider (35) are slidably engaged with each other on the inner side of the control box (2).

7. A CNC cutting machine for cemented carbide bars for tool processing according to claim 6, characterized in that: The connecting slider (35) is fixedly connected to a material conveying plate (36) at one end away from the threaded push plate (34). Two matching slide shafts (37) are slidably engaged on the inner side of the material conveying plate (36). A material conveying pressing plate (39) is fixedly connected to the bottom of the matching slide shaft (37). A material conveying spring (40) is fixedly connected between the material conveying pressing plate (39) and the material conveying plate (36). The material conveying spring (40) is movably sleeved on the outer side of the matching slide shaft (37). A matching top ring (38) is fixedly connected to the top of the matching slide shaft (37).

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