A grinding and forming machine for cemented carbide blades

Abstract

The present application relates to the field of production and processing of cemented carbide tools, and discloses a grinding and forming machine for cemented carbide blades, including a base, wherein a lower concave portion is provided on the upper part of the base, a cavity is provided on the inner bottom, a ring-shaped table integrally formed therewith is provided on the bottom wall of the lower concave portion, a plurality of guide columns in a ring array around the center of the circle are provided on the upper surface of the ring-shaped table, a columnar table is embedded in the middle part of the base and rotatably connected, a lower grinding disc is fixedly connected to the upper surface of the columnar table, a rotating shaft is passed through the center of the columnar table and the lower grinding disc, the bottom end of the rotating shaft passes through the cavity and is fixedly connected to a bottom plate, a lifting device is provided between the bottom plate and the bottom wall of the cavity, and a power device is provided in the cavity. Through the cooperation of the nesting mechanism and the lifting device, not only does the grinding and forming machine have the functions of coarse grinding and fine grinding at the same time, but the switching between the two functions is simple and quick, eliminating the step of blade transfer, reducing the use cost, and improving the processing efficiency.

Description

Technical Field

[0001] The invention relates to the field of production and processing of cemented carbide tools, in particular to a grinding and forming machine for cemented carbide blades. Background Art

[0002] The requirements for CNC technology are not only about the intelligent processing technology of CNC itself, but also very strict requirements for CNC cutting tools. When cutting parts with extremely high hardness at high speed, diamond, cubic boron nitride diamond, ceramic and other tools are selected. These tools are expensive, and the industry generally chooses carbide tools for processing to reduce production costs. For high-precision cutting blades, not only the blade needs to be ground, but also the two planes need to be ground to ensure the flatness and smoothness of the surface, thereby ensuring the flatness of the edge of the cut workpiece and improving cutting efficiency and cutting quality.

[0003] Since the two surfaces of the carbide blade need to be smooth and flat, if the commonly used single-sided grinding equipment is used, it is not only difficult to operate, but also difficult to ensure the processing symmetry of the two surfaces. Therefore, double-sided grinding equipment is currently used for grinding. The processing principle is that the upper and lower grinding discs rotate in opposite directions to grind both sides of the workpiece evenly and synchronously. However, in the actual use of the existing double-sided grinding equipment, for each device, the roughness of the grinding disc is fixed. The grinding disc with a rougher surface can only be used for the rough grinding process of the carbide blade, while the grinding disc with a finer surface is used for further fine grinding of the carbide blade. This results in the need to prepare at least two grinding equipment of different specifications in the actual operation process, and to add a blade transfer step during the processing process, thereby increasing the processing cost and reducing the processing efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a grinding and forming machine for cemented carbide blades, which solves the problems of the existing double-sided grinding equipment having single function, high use cost and low processing efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a grinding and forming machine for cemented carbide blades, comprising a base, a lower recess is provided on the upper part of the base, a cavity is provided on the inner bottom, the bottom wall of the lower recess is provided with an annular table integrally formed therewith, a plurality of guide columns 1 are provided on the upper surface of the annular table and are arranged in an annular array around the center of the circle, a columnar table is embedded in the middle part of the base and rotatably connected, a lower grinding disc is fixedly connected to the upper surface of the columnar table, a rotating shaft is passed through the center of the columnar table and the lower grinding disc, the bottom end of the rotating shaft passes through the cavity and is fixedly connected to a bottom plate, a lifting device is provided between the bottom plate and the bottom wall of the cavity, the cavity is provided with a power device for driving the rotating shaft to rotate, a plurality of guide columns 2 are provided on the top end of the rotating shaft and are arranged in an annular array around the center of the circle, and a plurality of guide columns 2 are placed on the surface of the lower grinding disc A grinding disc, an eccentric hole is provided on the body of the grinding disc for placing the blade to be ground, and a plurality of tooth-shaped grooves are provided on the outer edge of the grinding disc in a ring array around the center of the circle, the tooth-shaped grooves are respectively meshed with the guide column one and the guide column two, so that the rotating shaft drives the grinding disc to perform planetary motion around the rotating shaft, and a nesting mechanism is also provided between the outer wall of the rotating shaft and the inner bottom of the cylindrical table. When the lifting device drives the rotating shaft to rise, the nesting mechanism combines the rotating shaft with the cylindrical table and rotates synchronously, an upper grinding disc is provided above the lower grinding disc, and an asymmetric device is provided in the middle of the upper grinding disc, when the lifting device drives the guide column two to rise and combine with the asymmetric device, the upper grinding disc rotates synchronously and in the opposite direction with the rotating shaft, and a circulation device is also provided at the lower recessed portion, which is used to inject fluid abrasive into the lower recessed portion so that the blade clamped by the lower grinding disc and the upper grinding disc is immersed in the fluid abrasive.

[0006] Preferably, the power device comprises a motor reducer unit, the outer wall of the motor reducer unit is fixedly connected to the bottom wall of the base plate, the output end passes through the base plate and is fixedly connected to the bottom end of the rotating shaft, and the bottom end of the rotating shaft is rotatably connected to the upper wall of the base plate.

[0007] Preferably, the lifting device includes a bracket, the top end of the bracket is fixedly connected to the bottom wall of the base plate, the bottom end is fixedly connected to the output end of the cylinder, the bottom end of the outer wall of the cylinder is fixedly connected to the bottom wall of the cavity, and the side wall of the base plate is slidably connected to the inner wall of the lower grinding disc.

[0008] Preferably, the outer wall of the rotating shaft is sleeved and fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is slidably connected to the inner wall of the cylindrical platform.

[0009] Preferably, the upper surface of the lower grinding disc and the lower surface of the upper grinding disc are respectively provided with a plurality of evenly distributed grooves, and the grooves extend from the center of the circle toward the edge of the outer circle and pass through.

[0010] Preferably, the different-direction device includes bevel gear 1, the bottom wall of bevel gear 1 is fixedly connected to the upper surface of the upper grinding disc, the outer edge of the upper surface of the upper grinding disc is also rotatably connected to a fixed cover, the inner upper wall of the fixed cover is rotatably connected to bevel gear 2, the bottom wall of bevel gear 2 is fixedly connected to a rotating column, the bottom end of the rotating column passes through the middle part of bevel gear 1 and is located in the center hole of the upper grinding disc, the bottom end of the rotating column is also provided with an embedding groove corresponding to guide column 2, which is used to insert guide column 2 into the embedding groove, the tooth end of bevel gear 1 and the tooth end of bevel gear 2 are both meshed with the tooth end of bevel gear 3, and the middle part of bevel gear 3 is rotatably connected to the inner wall of the fixed cover.

[0011] Preferably, the top wall of the fixed cover is fixedly connected with a suspension device for driving the fixed cover to rise and fall.

[0012] Preferably, the second outer wall of the guide column is embedded in and slidably connected to a slide groove opened in the upper inner part of the rotating shaft, and the second bottom end of the guide column is fixedly connected to the bottom wall of the slide groove through a spring.

[0013] Preferably, the nesting mechanism includes a fixed ring and a fixed seat, the inner wall of the fixed ring is sleeved and fixedly connected to the outer wall of the rotating shaft, a plurality of bosses are embedded and slidably connected to the upper part of the fixed ring body, the bottom end of the boss is fixedly connected to the fixed ring body by spring two, so that the boss retracts into the fixed ring body when pressure is applied, and pops out and resets under the action of spring two when contact pressure is applied, a limiting groove matching the boss is provided at the lower part of the fixed seat, and the outer wall of the fixed seat is fixedly connected to the inner wall of the columnar platform.

[0014] The present invention provides a grinding and forming machine for cemented carbide blades. It has the following beneficial effects:

[0015] The present invention cooperates with the nesting mechanism and the lifting device to drive the shaft to rise and fall, thereby realizing the combination and separation of the shaft and the column table, and then cooperates with the different-direction device, and also uses the lifting device to drive the shaft to rise and fall, thereby realizing the combination and separation of the shaft and the upper grinding disc, and then controls the lifting of the shaft through the lifting device, on the one hand, the shaft synchronously drives the upper grinding disc and the lower grinding disc to rotate in the opposite direction, and the grinding disc revolves around the shaft to make a planetary motion, thereby realizing the high-speed rough grinding process of the blade, and on the other hand, the shaft alone drives the grinding disc to revolve around the shaft to make a planetary motion, and at this time, the circulating device is cooperated to inject the fluid abrasive into the lower concave part, so that the blade is immersed in the fluid abrasive, thereby realizing the process of low-speed fine grinding of the blade. Therefore, not only does the grinding and forming machine have the functions of rough grinding and fine grinding at the same time, but the switching between the two functions is simple and fast, eliminating the step of blade transfer, reducing the use cost, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a grinding and forming machine for a cemented carbide blade according to the present invention;

[0017] Figure 2 It is a three-dimensional schematic diagram of the lower grinding disc in the present invention;

[0018] Figure 3 It is a schematic diagram of the internal structure of the base in the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the fixed cover in the present invention;

[0020] Figure 5 It is a schematic diagram of the combination of the rotating shaft and the rotating column in the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the nested mechanism in the present invention.

[0022] Among them, 1. base; 101. concave portion; 102. cavity; 2. annular table; 3. guide column 1; 4. cylindrical table; 5. lower grinding disc; 6. rotating shaft; 601. slide groove; 7. bottom plate; 8. guide column 2; 9. grinding disc; 10. upper grinding disc; 11. motor reducer unit; 12. bracket; 13. cylinder; 14. bearing; 15. groove; 16. bevel gear 1; 17. fixed cover; 18. bevel gear 2; 19. rotating column; 1901. embedded groove; 20. bevel gear 3; 21. suspension device; 22. spring 1; 23. fixing ring; 2301. convex column; 2302. spring 2; 24. fixing seat; 2401. limit groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1 -Attached Figure 6The embodiment of the present invention provides a grinding and forming machine for cemented carbide blades, including a base 1, a lower concave portion 101 is provided on the upper part of the base 1, a cavity 102 is provided on the inner bottom, a ring-shaped platform 2 integrally formed therewith is provided on the bottom wall of the lower concave portion 101, a plurality of guide columns 3 are provided on the upper surface of the ring-shaped platform 2 in a ring array around the center of the circle, a columnar platform 4 is embedded in the middle part of the base 1 and rotatably connected, a lower grinding disc 5 is fixedly connected on the upper surface of the columnar platform 4, a rotating shaft 6 is passed through the center of the columnar platform 4 and the lower grinding disc 5, the bottom end of the rotating shaft 6 penetrates into the cavity 102 and is fixedly connected to a bottom plate 7, a lifting device is provided between the bottom plate 7 and the bottom wall of the cavity 102, a power device is provided in the cavity 102 for driving the rotating shaft 6 to rotate, a plurality of guide columns 8 are provided on the top of the rotating shaft 6 in a ring array around the center of the circle, a plurality of grinding discs 9 are placed on the surface of the lower grinding disc 5, and the body of the grinding disc 9 An eccentric hole is provided on the top for placing the blade to be ground, and a plurality of tooth-shaped grooves in a ring array around the center of the grinding disc 9 are provided on the outer edge of the grinding disc 9, and the tooth-shaped grooves are respectively meshed with the guide column 1 3 and the guide column 2 8, so that the rotating shaft 6 drives the grinding disc 9 to perform planetary motion around the rotating shaft 6. A nesting mechanism is also provided between the outer wall of the rotating shaft 6 and the inner bottom of the cylindrical table 4. When the lifting device drives the rotating shaft 6 to rise, the nesting mechanism combines the rotating shaft 6 with the cylindrical table 4 and rotates synchronously. An upper grinding disc 10 is provided above the lower grinding disc 5, and an isotropic device is provided in the middle of the upper grinding disc 10. When the lifting device drives the guide column 2 8 to rise and combines with the isotropic device, the upper grinding disc 10 rotates synchronously and in the opposite direction with the rotating shaft 6. A circulation device is also provided at the lower recess 101 for injecting fluid abrasive into the lower recess 101, so that the blade clamped by the lower grinding disc 5 and the upper grinding disc 10 is immersed in the fluid abrasive.

[0025] It should be noted that the main function of the circulation device is to inject the fluid abrasive into the lower concave portion 101 so as to achieve the purpose of immersing the rotating blade in the fluid abrasive for fine grinding. After the fine grinding step is completed, the fluid abrasive in the lower concave portion 101 can be extracted again through the circulation device and filtered to remove impurities for subsequent reuse. At the same time, the step of injecting the fluid abrasive into the lower concave portion 101 while extracting and filtering can also be used to update the fluid abrasive in real time to achieve a better fine grinding effect. In addition, a sealing structure is provided between the cylindrical table 4 and the rotating shaft 6 and the annular table 2 to prevent the fluid abrasive from leaking into them. At the same time, a through hole is opened at the bottom of the annular table 2 to facilitate the outflow of the fluid abrasive in the annular table 2.

[0026] The nesting mechanism includes a fixed ring 23 and a fixed seat 24. The inner wall of the fixed ring 23 is sleeved and fixedly connected to the outer wall of the rotating shaft 6. A plurality of bosses 2301 are embedded and slidably connected to the upper part of the ring body of the fixed ring 23. The bottom end of the boss 2301 is fixedly connected to the ring body of the fixed ring 23 through a second spring 2302, so that the boss 2301 retracts into the ring body of the fixed ring 23 when pressure is applied. When contact pressure is applied, the boss 2301 pops up and resets under the action of the second spring 2302. A limiting groove 2401 matching the boss 2301 is provided at the lower part of the fixed seat 24, and the outer wall of the fixed seat 24 is fixedly connected to the inner wall of the columnar platform 4.

[0027] Through the cooperation of the nesting mechanism and the lifting device, the lifting device drives the shaft 6 to rise and fall, thereby realizing the combination and separation of the shaft 6 and the column table 4, and then cooperates with the different-direction device, and also uses the lifting device to drive the shaft 6 to rise and fall, thereby realizing the combination and separation of the shaft 6 and the upper grinding disc 10, and then controls the lifting of the shaft 6 through the lifting device, on the one hand, the shaft 6 synchronously drives the upper grinding disc 10 and the lower grinding disc 5 to rotate in the opposite direction, and the grinding disc 9 revolves around the shaft 6 to make a planetary motion, thereby realizing the high-speed rough grinding process of the blade, and on the other hand, the shaft 6 alone drives the grinding disc 9 to revolve around the shaft to make a planetary motion, at this time, the circulating device is cooperated to inject the fluid abrasive into the lower concave part 101, so that the blade is immersed in the fluid abrasive, thereby realizing the process of low-speed fine grinding of the blade. Therefore, not only does the grinding and forming machine have the functions of rough grinding and fine grinding at the same time, but the switching between the two functions is simple and fast, eliminating the step of blade transfer, reducing the use cost, and improving the processing efficiency.

[0028] The power device includes a motor reducer unit 11, the outer wall of the motor reducer unit 11 is fixedly connected to the bottom wall of the base plate 7, the output end passes through the base plate 7 and is fixedly connected to the bottom end of the rotating shaft 6, and the bottom end of the rotating shaft 6 is rotatably connected to the upper wall of the base plate 7.

[0029] It should be noted that the motor-reducer unit 11 is a combination of a motor and a reducer, and its purpose is to provide a relatively stable torque output on the one hand, and to achieve timely deceleration when the motor stops on the other hand.

[0030] The lifting device includes a bracket 12, the top of which is fixedly connected to the bottom wall of the bottom plate 7, the bottom of which is fixedly connected to the output end of the cylinder 13, the bottom of the outer wall of the cylinder 13 is fixedly connected to the bottom wall of the cavity 102, and the side wall of the bottom plate 7 is slidably connected to the inner wall of the lower grinding disc 5.

[0031] The bottom plate 7 is driven to rise and fall by the cylinder 13, thereby driving the rotating shaft 6 to rise and fall.

[0032] The outer wall of the rotating shaft 6 is sleeved and fixedly connected to the inner ring of the bearing 14 , and the outer ring of the bearing 14 is slidably connected to the inner wall of the columnar platform 4 .

[0033] In order to further improve the rotation stability of the rotating shaft 6, a bearing 14 is added between the rotating shaft 6 and the cylindrical platform 4 so that the two are in conflict with each other in the horizontal direction to improve stability.

[0034] A plurality of evenly distributed grooves 15 are respectively formed on the upper surface of the lower grinding disc 5 and the lower surface of the upper grinding disc 10 . The grooves 15 extend from the center of the circle toward the outer edge of the circle and penetrate through the circle.

[0035] The arrangement of the groove 15 allows the fluid abrasive to be retained in the groove 15 during the fine grinding step, thereby achieving retention of the fluid abrasive on the surfaces of the lower grinding disc 5 and the upper grinding disc 10. At the same time, both are immersed in the fluid abrasive, so that the finer fluid abrasive can fill the roughness of the surfaces of both, and the two can cooperate with the fluid abrasive to achieve a finer grinding effect.

[0036] The different-direction device includes a bevel gear 16, the bottom wall of which is fixedly connected to the upper surface of the upper grinding disc 10, and the outer edge of the upper surface of the upper grinding disc 10 is also rotatably connected to a fixed cover 17, and the inner upper wall of the fixed cover 17 is rotatably connected to a bevel gear 2 18, and the bottom wall of the bevel gear 2 18 is fixedly connected to a rotating column 19, and the bottom end of the rotating column 19 passes through the middle of the bevel gear 16 and is located in the center hole of the upper grinding disc 10, and the bottom end of the rotating column 19 is also provided with an embedding groove 1901 corresponding to the guide column 2 8, which is used to insert the guide column 2 8 into the embedding groove 1901, and the tooth ends of the bevel gear 16 and the tooth ends of the bevel gear 2 18 are both meshed with the tooth ends of the bevel gear 3 20, and the middle part of the bevel gear 3 20 is rotatably connected to the inner side wall of the fixed cover 17. The outer wall of the guide column 2 8 is embedded and slidably connected in the slide groove 601 opened in the upper inner part of the rotating shaft 6, and the bottom end of the guide column 2 8 and the bottom wall of the slide groove 601 are fixedly connected by a spring 1 22.

[0037] By setting the different-direction device, the guide column 2 8 is inserted into the embedding groove 1901, driving the bevel gear 2 18 to rotate, and then driving the bevel gear 3 20 to rotate, and finally realizing that the bevel gear 2 18 drives the upper grinding disc 10 to rotate in the opposite direction.

[0038] A suspension device 21 is fixedly connected to the top wall of the fixed cover 17 to drive the fixed cover 17 to rise and fall.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and shaping machine for cemented carbide blades, comprising a base (1), characterized in that: The base (1) has a lower concave portion (101) at the top and a cavity (102) at the bottom. The bottom wall of the lower concave portion (101) is provided with an annular platform (2) formed integrally therewith. The upper surface of the annular platform (2) is provided with a plurality of guide columns (3) arranged in an annular array around the center of the annular platform. A columnar platform (4) is embedded in the middle of the base (1) and is rotatably connected thereto. A lower grinding disc (5) is fixedly connected to the upper surface of the columnar platform (4). The columnar platform (4) and the lower grinding disc (5) are connected in a central position. A rotating shaft (6) is provided through the center of the rotating shaft (6), the bottom end of the rotating shaft (6) penetrates into the cavity (102) and is fixedly connected with a bottom plate (7), a lifting device is provided between the bottom plate (7) and the bottom wall of the cavity (102), the cavity (102) is provided with a power device for driving the rotating shaft (6) to rotate, a plurality of guide columns (8) are provided at the top end of the rotating shaft (6) and are arranged in a circular array around the center of the circle, a plurality of grinding sheets (9) are placed on the surface of the lower grinding disc (5), and the sheet body of the grinding sheet (9) is opened. An eccentric hole is provided for placing a blade to be ground, and a plurality of tooth-shaped grooves are provided on the outer edge of the grinding disc (9) in a circular array around the center of the circle, and the tooth-shaped grooves are respectively meshed with the first guide column (3) and the second guide column (8), so that the rotating shaft (6) drives the grinding disc (9) to perform planetary motion around the rotating shaft (6), and a nesting mechanism is also provided between the outer wall of the rotating shaft (6) and the inner bottom of the columnar platform (4). When the lifting device drives the rotating shaft (6) to rise, the nesting mechanism causes the rotating shaft (6) to be aligned with the columnar platform (4). The lower grinding disc (5) is combined and rotated synchronously. An upper grinding disc (10) is arranged above the lower grinding disc (5), and a different direction device is arranged in the middle of the upper grinding disc (10). When the lifting device drives the guide column 2 (8) to rise and is combined with the different direction device, the upper grinding disc (10) is caused to rotate synchronously and in the opposite direction along with the rotating shaft (6). A circulation device is also arranged at the lower concave portion (101) for injecting fluid abrasive into the lower concave portion (101) so that the blade clamped by the lower grinding disc (5) and the upper grinding disc (10) is immersed in the fluid abrasive.

2. A grinding and forming machine for cemented carbide blades according to claim 1, characterized in that: The power device comprises a motor reducer unit (11), the outer wall of the motor reducer unit (11) is fixedly connected to the bottom wall of the base plate (7), the output end passes through the base plate (7) and is fixedly connected to the bottom end of the rotating shaft (6), and the bottom end of the rotating shaft (6) is rotatably connected to the upper wall of the base plate (7).

3. A grinding and forming machine for cemented carbide blades according to claim 2, characterized in that: The lifting device comprises a bracket (12), the top end of the bracket (12) is fixedly connected to the bottom wall of the bottom plate (7), the bottom end is fixedly connected to the output end of the cylinder (13), the bottom end of the outer wall of the cylinder (13) is fixedly connected to the bottom wall of the cavity (102), and the side wall of the bottom plate (7) is slidably connected to the inner wall of the lower grinding disc (5).

4. The grinding and shaping machine for cemented carbide blades according to claim 1, characterized in that: The outer wall of the rotating shaft (6) is sleeved and fixedly connected to the inner ring of the bearing (14), and the outer ring of the bearing (14) is slidably connected to the inner wall of the columnar platform (4).

5. The grinding and shaping machine for cemented carbide blades according to claim 1, characterized in that: The upper surface of the lower grinding disc (5) and the lower surface of the upper grinding disc (10) are respectively provided with a plurality of evenly distributed grooves (15), and the grooves (15) extend from the center of the circle toward the outer circle edge and penetrate through.

6. The grinding and shaping machine for cemented carbide blades according to claim 1, characterized in that: The different-direction device comprises a bevel gear 1 (16), the bottom wall of which is fixedly connected to the upper surface of the upper grinding disc (10), the outer edge of the upper surface of the upper grinding disc (10) is also rotatably connected to a fixed cover (17), the inner upper wall of the fixed cover (17) is rotatably connected to a bevel gear 2 (18), the bottom wall of the bevel gear 2 (18) is fixedly connected to a rotating column (19), the bottom end of the rotating column (19) passes through the middle of the bevel gear 1 (16) and is located in the center hole of the upper grinding disc (10), the bottom end of the rotating column (19) is also provided with an embedding groove (1901) corresponding to the guide column 2 (8), for inserting the guide column 2 (8) into the embedding groove (1901), the tooth ends of the bevel gear 1 (16) and the tooth ends of the bevel gear 2 (18) are both meshed with the tooth ends of the bevel gear 3 (20), and the middle part of the bevel gear 3 (20) is rotatably connected to the inner side wall of the fixed cover (17).

7. A grinding and shaping machine for cemented carbide blades according to claim 6, characterized in that: The top wall of the fixed cover (17) is fixedly connected with a suspension device (21) for driving the fixed cover (17) to rise and fall.

8. The grinding and shaping machine for cemented carbide blades according to claim 7, characterized in that: The outer wall of the second guide column (8) is embedded in and slidably connected to a slide groove (601) provided in the upper inner part of the rotating shaft (6), and the bottom end of the second guide column (8) is fixedly connected to the bottom wall of the slide groove (601) via a spring (22).

9. The grinding and shaping machine for cemented carbide blades according to claim 1, characterized in that: The nesting mechanism comprises a fixing ring (23) and a fixing seat (24); the inner wall of the fixing ring (23) is sleeved and fixedly connected to the outer wall of the rotating shaft (6); a plurality of convex columns (2301) are embedded in and slidably connected to the upper part of the fixing ring (23) ring body; the bottom ends of the convex columns (2301) are fixedly connected to the ring body of the fixing ring (23) through a second spring (2302), so that the convex columns (2301) retract into the ring body of the fixing ring (23) when under pressure; when under contact pressure, the convex columns (2301) pop out and reset under the action of the second spring (2302); a limiting groove (2401) matching the convex columns (2301) is provided at the lower part of the fixing seat (24); and the outer wall of the fixing seat (24) is fixedly connected to the inner wall of the columnar platform (4).

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