An electromagnetic clamping five-axis linkage CNC tool grinding machine for workpieces and its usage method

Abstract

The invention discloses a five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces and a method for using the same, which belongs to the technical field of CNC tool grinders. The invention discloses a five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces, comprising a chassis main body, a motor fixedly arranged inside the chassis main body, and a fixed cylinder arranged on the top of the motor; the five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces drives the ratchet and the rotating rod to rotate synchronously by rotating a handwheel rod, and the rotating rod drives the rotating plate to rotate, so that the driving rod slides out of the rectangular hole of the circular plate, drives the sliding rod to slide outward, and causes the four annular clamping plates to simultaneously approach the center of the rotating cylinder, thereby achieving the function of clamping the workpiece in the cylinder clamp; after clamping, the ratchet is tightly clamped between the ratchet and the ratchet under the action of the elastic sheet, thereby fixing the ratchet and preventing it from rotating in the opposite direction, and further fixing the rotating plate, thereby causing the four annular clamping plates to tightly clamp the workpiece; the operation is simple, and the clamping speed is faster and firmer.

Description

Technical Field

[0001] The present invention relates to the technical field of CNC tool grinders, and in particular to a workpiece electromagnetic clamping five-axis linkage CNC tool grinder and a use method thereof. Background Art

[0002] The five-axis CNC tool grinder is an advanced metal cutting machine that can simultaneously control the movement of the tool in five degrees of freedom, thereby achieving high-precision grinding of complex tool geometries. It is widely used in the tool manufacturing industry, such as grinding drills, milling cutters, reamers, thread cutters, etc. It can be used to manufacture tools of various materials, including high-speed steel, cemented carbide, ceramics, etc. The five-axis CNC tool grinder can improve the processing accuracy, surface quality and production efficiency of the tool.

[0003] After searching, the Chinese patent authorization number CN 201736079 U discloses a workpiece electromagnetic clamping mechanism for a five-axis linkage grinder. The above patent has the following shortcomings: the pulling in and pushing out of the collet are both manually operated, either directly pushing and pulling, or using a spiral structure to convert the rotation of the turntable into axial forward and backward movement to achieve the clamping and loosening of the collet. However, such a structure is cumbersome to operate, slow, and inefficient, and may even cause insufficient clamping force, loosening, and affect the processing quality. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of low efficiency and poor stability of collet clamps in the prior art during clamping, and to propose a five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces includes a chassis main body, a motor is fixedly arranged inside the chassis main body, a fixed cylinder is arranged on the top of the motor, and also includes: a rotating cylinder, rotatably connected in the fixed cylinder, a circular plate is fixedly connected inside the rotating cylinder, a rectangular hole is opened on the surface of the circular plate; a sliding rod, slidably connected to the rectangular hole of the circular plate; an annular clamping plate is fixedly connected to the sliding rod; a driving rod is fixedly connected to the left side of the sliding rod; a rotating plate, rotatably connected in the rotating cylinder, four arc-shaped sliding holes are opened on the rotating plate; a rotating rod is fixedly connected to the left side of the rotating plate, a ratchet is fixedly connected to the left side of the rotating rod, and a handwheel rod is fixedly connected to the left side of the ratchet; a pawl is hinged on the inner wall of the rotating cylinder, and an elastic sheet is fixedly connected to the inner wall of the rotating cylinder.

[0007] Preferably, a mounting frame is fixedly connected to the top inner wall of the chassis body, the motor is placed in the mounting frame, the output end of the motor is fixedly connected to a first transmission rod, the first transmission rod passes through the mounting frame and is rotatably connected to the mounting frame, and the left surface of the mounting frame is fixedly connected to an L-shaped support plate.

[0008] Preferably, a second transmission rod passes through the surface of the L-shaped support plate and is rotatably connected to the L-shaped support plate, a synchronous belt is connected between the second transmission rod and the first transmission rod, the handwheel rod passes through the second transmission rod and is rotatably connected to the second transmission rod, the handwheel rod passes through the rotating drum, and the right end of the second transmission rod is fixedly connected to the rotating drum.

[0009] Preferably, a sliding groove is opened in the rectangular hole of the circular plate, the sliding rod is slidably connected in the sliding groove of the circular plate, and a first spring is sleeved on the sliding rod near the sliding groove of the circular plate. One end of the first spring is fixedly connected to the outer inner wall of the sliding groove of the circular plate, and the other end of the first spring is fixedly connected to the sliding rod.

[0010] Preferably, the driving rod passes through the arc-shaped sliding hole of the rotating plate and is slidably connected to the arc-shaped sliding hole of the rotating plate. A rotating groove adapted to the rotating plate is provided on the inner wall of the rectangular hole of the circular plate. A toggle rod is fixedly connected to the left side surface of the pawl. A sliding slot hole is provided on the left side surface of the rotating cylinder. The toggle rod passes through the sliding slot hole of the rotating cylinder and is slidably connected to the sliding slot hole of the rotating cylinder.

[0011] Preferably, a circular ring passes through the outer surface of the rotating cylinder and is fixedly connected to the rotating cylinder, an annular groove is opened on the inner wall of the fixed cylinder, the circular ring is rotatably connected to the annular groove of the fixed cylinder, and a smooth steel ball is rotatably connected between the annular groove of the fixed cylinder and the circular ring.

[0012] Preferably, a push rod passes through the surface of the annular clamping plate and is slidably connected to the annular clamping plate, a piston cavity is opened inside the rectangular hole of the circular plate, and a piston block is connected to the piston cavity inside the rectangular hole of the circular plate. The end of the push rod away from the annular clamping plate is fixedly connected to the piston block, and the push rod passes through the piston cavity of the circular plate and is slidably connected to the piston cavity of the circular plate.

[0013] Preferably, an air blowing pipe is fixedly connected to the inner wall of the top of the piston cavity of the rectangular hole of the circular plate, and an installation groove adapted to the air blowing pipe is provided on the inner wall of the rectangular hole of the circular plate. A one-way valve is fixedly installed inside the air blowing pipe, and one end of the air blowing pipe away from the piston cavity of the circular plate is fixedly connected to the annular clamping plate, and an air hole matching the air blowing pipe is provided on the annular clamping plate.

[0014] Preferably, an air intake pipe is fixedly connected to the inner wall of the piston cavity inside the rectangular hole of the circular plate, the air intake pipe passes through the circular plate and is fixedly connected to the circular plate, a one-way valve is fixedly installed inside the air intake pipe, and a second spring is provided on the surface of the push rod, one end of the second spring is fixedly connected to the annular clamping plate, and the other end of the second spring is fixedly connected to the outer wall of the rectangular hole of the circular plate.

[0015] A method for using a five-axis CNC tool grinder with electromagnetic clamping of a workpiece, which is operated by the following steps:

[0016] S1. When the workpiece needs to be clamped, the workpiece is placed in the collet, and the ratchet and the rotating rod are rotated synchronously by rotating the handwheel rod. The rotating rod drives the rotating plate to rotate, so that the driving rod slides along the arc-shaped sliding hole of the rotating plate.

[0017] S2. The driving rod pulls the sliding rod on the right side to slide out of the rectangular hole of the circular plate, and then drives the four annular clamping plates to slide toward the center of the rotating drum, clamping the collet and the workpiece inside. After clamping, the ratchet is clamped by the pawl, so that the ratchet cannot rotate in the opposite direction, thereby automatically locking the workpiece. After the workpiece is clamped, it cannot be loosened when the grinding chips are running and subjected to force processing.

[0018] Compared with the prior art, the present invention provides a five-axis CNC tool grinder with electromagnetic clamping of workpieces, which has the following beneficial effects:

[0019] 1. The workpiece electromagnetic clamping five-axis linkage CNC tool grinder drives the ratchet and the rotating rod to rotate synchronously by rotating the handwheel rod. The rotating rod drives the rotating plate to rotate, so that the driving rod slides out of the rectangular hole of the circular plate, driving the sliding rod to slide outward, so that the four annular clamping plates simultaneously move closer to the center of the rotating drum, and realize the clamping function of the workpiece in the collet. After clamping, the pawl is tightly stuck between the pawl and the ratchet under the action of the elastic sheet, so that the ratchet is fixed and cannot rotate in the opposite direction, thereby fixing the rotating plate, so that the four annular clamping plates tightly clamp the workpiece. The operation is simple, and the clamping speed is faster and stronger.

[0020] 2. The workpiece electromagnetic clamping five-axis linkage CNC tool grinder, through the external ring, the rotating drum rotates in the annular groove of the fixed drum, with smooth steel balls, can make the rotating drum rotate more smoothly, which helps to increase the service life.

[0021] 3. The electromagnetic clamping five-axis linkage CNC tool grinder for the workpiece, in the process of the annular clamping plate clamping the workpiece, the push rod first contacts the workpiece, causing the push rod to slide toward the inside of the rectangular hole of the circular plate, driving the piston block to slide in the piston cavity of the circular plate to perform piston motion, so that the gas in the piston cavity of the circular plate is squeezed and discharged from the blow pipe, blowing away the dust on the surface of the workpiece, making the workpiece surface cleaner, which helps to achieve a better clamping effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a five-axis CNC tool grinder with electromagnetic clamping for workpieces proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure inside the chassis body of a five-axis CNC tool grinder with electromagnetic clamping for workpieces proposed by the present invention;

[0024] Figure 3 This is a front cross-sectional structural diagram of a five-axis linkage CNC tool grinder with electromagnetic clamping for workpieces proposed by the present invention;

[0025] Figure 4 This is a schematic cross-sectional structure diagram of a fixed cylinder, a rotating cylinder, and a mounting frame in a five-axis linkage CNC tool grinder with electromagnetic clamping of a workpiece proposed by the present invention;

[0026] Figure 5 This invention proposes a five-axis CNC tool grinder with electromagnetic clamping for workpieces. Figure 4 Schematic diagram of the structure of part A;

[0027] Figure 6 This is a schematic diagram of the top cross-sectional structure of a five-axis CNC tool grinder with electromagnetic clamping for workpieces proposed by the present invention;

[0028] Figure 7 This invention proposes a five-axis CNC tool grinder with electromagnetic clamping for workpieces. Figure 6 Schematic diagram of the structure of part B;

[0029] Figure 8 This is a schematic diagram of the structure of a ring and a smooth steel ball between a fixed cylinder and a rotating cylinder in a five-axis CNC tool grinder with electromagnetic clamping of a workpiece proposed by the present invention;

[0030] Figure 9 This is a schematic structural diagram of the left side section of the rotary drum in a five-axis linkage CNC tool grinder with electromagnetic clamping of a workpiece proposed by the present invention;

[0031] Figure 10 This invention proposes a five-axis CNC tool grinder with electromagnetic clamping for workpieces. Figure 9 Schematic diagram of the structure of part C;

[0032] Figure 11 This is a schematic diagram of the structure inside the circular plate of a five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces proposed by the present invention.

[0033] In the figure: 1. chassis body; 2. motor; 3. fixed cylinder; 4. rotating cylinder; 5. circular plate; 6. sliding rod; 7. annular clamping plate; 8. driving rod; 9. rotating plate; 10. rotating rod; 11. ratchet; 12. handwheel rod; 13. pawl; 1301, toggle rod; 14. elastic sheet; 15. mounting frame; 16. first transmission rod; 17. L-shaped support plate; 18. second transmission rod; 19. synchronous belt; 20. first spring; 21. circular ring; 22. smooth steel ball; 23. push rod; 24. piston block; 25. blow pipe; 26. suction pipe; 27. second spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0036] Example 1: Reference Figures 1-11 , a five-axis linkage CNC tool grinder with electromagnetic clamping of workpieces, including a chassis main body 1, a motor 2 is fixedly arranged inside the chassis main body 1, a fixed cylinder 3 is arranged on the top of the motor 2, and also includes: a rotating cylinder 4, which is rotatably connected in the fixed cylinder 3, and a circular plate 5 is fixedly connected to the inside of the rotating cylinder 4, and a rectangular hole is opened on the surface of the circular plate 5; a sliding rod 6 is slidably connected to the rectangular hole of the circular plate 5; an annular clamping plate 7 is fixedly connected to the sliding rod 6; a driving rod 8 is fixedly connected to the left side of the sliding rod 6; a rotating plate 9 is rotatably connected in the rotating cylinder 4, and four arc-shaped sliding holes are opened on the rotating plate 9; a rotating rod 10 is fixedly connected to the left side of the rotating plate 9, and a ratchet 11 is fixedly connected to the left side of the rotating rod 10, and a handwheel rod 12 is fixedly connected to the left side of the ratchet 11; a pawl 13 is hinged on the inner wall of the rotating cylinder 4, and an elastic sheet 14 is fixedly connected to the inner wall of the rotating cylinder 4.

[0037] In the present invention, when clamping the workpiece, after putting it into the collet, the handwheel rod 12 is rotated to drive the ratchet 11 and the rotating rod 10 to rotate synchronously, and the rotating rod 10 drives the rotating plate 9 to rotate, so that the driving rod 8 slides along the arc-shaped sliding hole of the rotating plate 9, so that the driving rod 8 slides out of the rectangular hole of the circular plate 5, thereby driving the sliding rod 6 to slide outward, so that the four annular clamping plates 7 simultaneously move closer to the center of the rotating cylinder 4, and the workpiece in the collet is clamped. After clamping, the pawl 13 is tightly stuck between the pawl 13 and the ratchet 11 under the action of the elastic sheet 14, so that the ratchet 11 is fixed and cannot rotate in the opposite direction, thereby fixing the rotating plate 9, so that the four annular clamping plates 7 clamp the workpiece tightly, which is simple to operate and has a faster and stronger clamping speed.

[0038] Example 2: Reference Figures 1-11 , which is basically the same as the first embodiment, and further, a mounting frame 15 is fixedly connected to the top inner wall of the chassis body 1, the motor 2 is placed in the mounting frame 15, and the output end of the motor 2 is fixedly connected to a first transmission rod 16, the first transmission rod 16 passes through the mounting frame 15 and is rotatably connected to the mounting frame 15, and an L-shaped support plate 17 is fixedly connected to the left surface of the mounting frame 15.

[0039] A second transmission rod 18 passes through the surface of the L-shaped support plate 17 and is rotatably connected to the L-shaped support plate 17. A synchronous belt 19 is connected to the second transmission rod 18 and the first transmission rod 16. The handwheel rod 12 passes through the second transmission rod 18 and is rotatably connected to the second transmission rod 18. The handwheel rod 12 passes through the rotating drum 4, and the right end of the second transmission rod 18 is fixedly connected to the rotating drum 4.

[0040] In the present invention, the L-shaped support plate 17 can support the second transmission rod 18. When the workpiece needs to be rotated after being clamped, the first transmission rod 16 is driven to rotate by starting the motor 2, and the second transmission rod 18 is driven to rotate synchronously by the synchronous belt 19, and then the second transmission rod 18 drives the rotating drum 4 to rotate, so that the workpiece can be clamped and rotated at the same time, and after clamping, it cannot be loosened when the grinding chip is running and subjected to force processing. The handwheel rod 12 passes through the second transmission rod 18, so that the second transmission rod 18 is not affected by the handwheel rod 12 when it rotates.

[0041] A sliding groove is opened in the rectangular hole of the circular plate 5, and the sliding rod 6 is slidably connected in the sliding groove of the circular plate 5. A first spring 20 is sleeved on the sliding rod 6 near the sliding groove of the circular plate 5. One end of the first spring 20 is fixedly connected to the outer inner wall of the sliding groove of the circular plate 5, and the other end of the first spring 20 is fixedly connected to the sliding rod 6.

[0042] In the present invention, when the sliding rod 6 is pulled outward by the driving rod 8, the first spring 20 will be compressed. The first spring 20 can automatically reset the annular clamping plate 7 and the sliding rod 6 later. The sliding groove of the rectangular hole of the circular plate 5 can guide the sliding of the sliding rod 6.

[0043] The driving rod 8 passes through the arc-shaped sliding hole of the rotating plate 9 and is slidingly connected to the arc-shaped sliding hole of the rotating plate 9. A rotating groove adapted to the rotating plate 9 is opened on the inner wall of the rectangular hole of the circular plate 5. The left surface of the pawl 13 is fixedly connected with a toggle rod 1301. A sliding slot hole is opened on the left surface of the rotating drum 4. The toggle rod 1301 passes through the sliding slot hole of the rotating drum 4 and is slidingly connected to the sliding slot hole of the rotating drum 4.

[0044] In the present invention, the rotating plate 9 can be stably rotated through the rotating groove on the inner wall of the rectangular hole of the circular plate 5. When the clamping of the workpiece needs to be released, it is only necessary to push the toggle rod 1301 upward and slide it along the slide groove hole of the rotating cylinder 4 to drive the pawl 13 to compress the elastic sheet 14 and disengage it from the ratchet 11. The ratchet 11 can be rotated in the opposite direction, thereby reversing the rotating plate 9 and releasing the clamping of the workpiece.

[0045] Example 3: Reference Figure 6 、 Figure 8 、 Figure 9 , which is basically the same as the first embodiment, and further, a circular ring 21 is passed through the outer surface of the rotating cylinder 4 and is fixedly connected to the rotating cylinder 4, an annular groove is opened on the inner wall of the fixed cylinder 3, the circular ring 21 is rotatably connected to the annular groove of the fixed cylinder 3, and a smooth steel ball 22 is rotatably connected between the annular groove of the fixed cylinder 3 and the circular ring 21.

[0046] In the present invention, when the drum 4 rotates, the outer ring 21 rotates in the annular groove of the fixed drum 3, and then cooperates with the smooth steel ball 22, so that the drum 4 can rotate more smoothly, which helps to increase the service life.

[0047] Example 4: Reference Figure 4-11 , which is basically the same as the first embodiment. Furthermore, a push rod 23 is passed through the surface of the annular clamping plate 7 and is slidably connected to the annular clamping plate 7. A piston cavity is opened inside the rectangular hole of the circular plate 5. The piston inside the piston cavity of the rectangular hole of the circular plate 5 is connected to a piston block 24. The end of the push rod 23 away from the annular clamping plate 7 is fixedly connected to the piston block 24. The push rod 23 passes through the piston cavity of the circular plate 5 and is slidably connected to the piston cavity of the circular plate 5.

[0048] In the present invention, when the annular clamping plate 7 clamps the workpiece, the push rod 23 first contacts the workpiece, causing the push rod 23 to slide toward the inside of the rectangular hole of the circular plate 5, thereby driving the piston block 24 to slide in the piston cavity of the circular plate 5 to perform piston motion.

[0049] An air blowing pipe 25 is fixedly connected to the inner wall of the top of the piston cavity of the rectangular hole of the circular plate 5. A mounting groove compatible with the air blowing pipe 25 is opened on the inner wall of the rectangular hole of the circular plate 5. A one-way valve is fixedly installed inside the air blowing pipe 25. One end of the air blowing pipe 25 away from the piston cavity of the circular plate 5 is fixedly connected to the annular clamping plate 7. The annular clamping plate 7 is provided with an air hole matching the air blowing pipe 25.

[0050] In the present invention, the surface of the workpiece is picked up manually and is exposed to the outside for a long time, and the surface is easily covered with dust. When the piston block 24 slides, the gas in the piston cavity of the circular plate 5 is squeezed and discharged from the blow pipe 25, blowing away the dust on the surface of the workpiece, making the surface of the workpiece cleaner, which helps to achieve a better clamping effect of the workpiece.

[0051] An intake pipe 26 is fixedly connected to the inner wall of the piston cavity inside the rectangular hole of the circular plate 5. The intake pipe 26 passes through the circular plate 5 and is fixedly connected to the circular plate 5. A one-way valve is fixedly installed inside the intake pipe 26. A second spring 27 is sleeved on the surface of the push rod 23. One end of the second spring 27 is fixedly connected to the annular clamping plate 7, and the other end of the second spring 27 is fixedly connected to the outer wall of the rectangular hole of the circular plate 5.

[0052] In the present invention, the second spring 27 is compressed while the push rod 23 slides. Then, after the workpiece is released from clamping, the second spring 27 can make the push rod 23 pull the piston block 24 to automatically reset, thereby achieving air suction in the piston cavity of the circular plate 5, thereby sucking air from the outside into the piston cavity of the circular plate 5 through the suction pipe 26, so as to be used for cleaning dust when the workpiece is clamped next time.

[0053] Example 5: A method for using a five-axis CNC tool grinder with electromagnetic clamping of a workpiece, which is operated by the following steps:

[0054] S1. When a workpiece needs to be clamped, the workpiece is placed in the collet, and the handwheel rod 12 is rotated to drive the ratchet 11 and the rotating rod 10 to rotate synchronously. The rotating rod 10 drives the rotating plate 9 to rotate, so that the driving rod 8 slides along the arc-shaped sliding hole of the rotating plate 9;

[0055] S2, the driving rod 8 pulls the sliding rod 6 on the right side to slide out of the rectangular hole of the circular plate 5, and then drives the four annular clamping plates 7 to slide toward the center of the rotating drum 4, clamping and fixing the collet and the workpiece inside. After clamping, the ratchet 11 is clamped by the pawl 13, so that the ratchet 11 cannot rotate in the opposite direction, thereby automatically locking the workpiece, so that after the workpiece is clamped, it cannot be loosened when the grinding chip is running and subjected to force processing.

[0056] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A five-axis linkage CNC tool grinder with electromagnetic clamping of a workpiece, comprising a chassis body (1), a motor (2) fixedly arranged inside the chassis body (1), a fixing cylinder (3) arranged on the top of the motor (2), characterized in that: Also includes: A rotating drum (4) is rotatably connected to the fixed drum (3); a circular plate (5) is fixedly connected to the interior of the rotating drum (4); and a rectangular hole is provided on the surface of the circular plate (5); A sliding rod (6) is slidably connected to the rectangular hole of the circular plate (5); an annular clamping plate (7) fixedly connected to the sliding rod (6); A driving rod (8) fixedly connected to the left side of the sliding rod (6); A rotating plate (9) is rotatably connected to the rotating drum (4), and four arc-shaped sliding holes are formed on the rotating plate (9); A rotating rod (10) is fixedly connected to the left side of the rotating plate (9), a ratchet (11) is fixedly connected to the left side of the rotating rod (10), and a handwheel rod (12) is fixedly connected to the left side of the ratchet (11); A ratchet (13) is hinged on the inner wall of the rotating drum (4), and an elastic sheet (14) is fixedly connected to the inner wall of the rotating drum (4); A mounting frame (15) is fixedly connected to the top inner wall of the chassis body (1), the motor (2) is placed in the mounting frame (15), the output end of the motor (2) is fixedly connected to a first transmission rod (16), the first transmission rod (16) passes through the mounting frame (15) and is rotatably connected to the mounting frame (15), and an L-shaped support plate (17) is fixedly connected to the left surface of the mounting frame (15); A second transmission rod (18) is passed through the surface of the L-shaped support plate (17) and is rotatably connected to the L-shaped support plate (17). A synchronous belt (19) is connected to the second transmission rod (18) and the first transmission rod (16). The handwheel rod (12) passes through the second transmission rod (18) and is rotatably connected to the second transmission rod (18). The handwheel rod (12) passes through the rotating drum (4). The right end of the second transmission rod (18) is fixedly connected to the rotating drum (4).

2. The five-axis CNC tool grinder with electromagnetic clamping according to claim 1, characterized in that: A sliding groove is provided in the rectangular hole of the circular plate (5), and the sliding rod (6) is slidably connected in the sliding groove of the circular plate (5). A first spring (20) is sleeved on the sliding rod (6) near the inside of the sliding groove of the circular plate (5), one end of the first spring (20) is fixedly connected to the outer inner wall of the sliding groove of the circular plate (5), and the other end of the first spring (20) is fixedly connected to the sliding rod (6).

3. The five-axis CNC tool grinder with electromagnetic clamping according to claim 1, characterized in that: The driving rod (8) passes through the arc-shaped sliding hole of the rotating plate (9) and is slidably connected to the arc-shaped sliding hole of the rotating plate (9); a rotating groove adapted to the rotating plate (9) is provided on the inner wall of the rectangular hole of the circular plate (5); a toggle rod (1301) is fixedly connected to the left surface of the pawl (13); a sliding slot hole is provided on the left surface of the rotating cylinder (4); the toggle rod (1301) passes through the sliding slot hole of the rotating cylinder (4) and is slidably connected to the sliding slot hole of the rotating cylinder (4).

4. The five-axis CNC tool grinder with electromagnetic clamping according to claim 1, characterized in that: A circular ring (21) passes through the outer surface of the rotating cylinder (4) and is fixedly connected to the rotating cylinder (4). An annular groove is provided on the inner wall of the fixed cylinder (3). The circular ring (21) is rotatably connected to the annular groove of the fixed cylinder (3). A smooth steel ball (22) is rotatably connected between the annular groove of the fixed cylinder (3) and the circular ring (21).

5. The five-axis CNC tool grinder with electromagnetic clamping according to claim 1, characterized in that: A push rod (23) passes through the surface of the annular clamping plate (7) and is slidably connected to the annular clamping plate (7). A piston cavity is opened inside the rectangular hole of the circular plate (5). The piston inside the piston cavity of the rectangular hole of the circular plate (5) is connected to a piston block (24). One end of the push rod (23) away from the annular clamping plate (7) is fixedly connected to the piston block (24). The push rod (23) passes through the piston cavity of the circular plate (5) and is slidably connected to the piston cavity of the circular plate (5).

6. The five-axis CNC tool grinder with electromagnetic clamping according to claim 5, characterized in that: An air blowing pipe (25) is fixedly connected to the inner wall of the top of the piston cavity of the rectangular hole of the circular plate (5), and a mounting groove matching the air blowing pipe (25) is provided on the inner wall of the rectangular hole of the circular plate (5). A one-way valve is fixedly installed inside the air blowing pipe (25), and one end of the air blowing pipe (25) away from the piston cavity of the circular plate (5) is fixedly connected to the annular clamping plate (7), and the annular clamping plate (7) is provided with an air blowing hole matching the air blowing pipe (25).

7. The five-axis CNC tool grinder with electromagnetic clamping according to claim 5, characterized in that: An air intake pipe (26) is fixedly connected to the inner wall of the piston cavity of the rectangular hole of the circular plate (5), and the air intake pipe (26) passes through the circular plate (5) and is fixedly connected to the circular plate (5). A one-way valve is fixedly installed inside the air intake pipe (26), and a second spring (27) is sleeved on the surface of the push rod (23), one end of the second spring (27) is fixedly connected to the annular clamping plate (7), and the other end of the second spring (27) is fixedly connected to the outer wall of the rectangular hole of the circular plate (5).

8. The method for using a five-axis CNC tool grinder with electromagnetic clamping of a workpiece according to claim 1, characterized in that: A five-axis CNC tool grinder with electromagnetic clamping for a workpiece according to any one of claims 1 to 7 is operated by the following steps: S1. When a workpiece needs to be clamped, the workpiece is placed in the collet, and the handwheel rod (12) is rotated to drive the ratchet (11) and the rotating rod (10) to rotate synchronously. The rotating rod (10) drives the rotating plate (9) to rotate, so that the driving rod (8) slides along the arc-shaped sliding hole of the rotating plate (9); S2, the driving rod (8) pulls the sliding rod (6) on the right side to slide out of the rectangular hole of the circular plate (5), thereby driving the four annular clamping plates (7) to slide toward the center of the rotating drum (4), clamping and fixing the collet and the workpiece inside. After clamping, the ratchet (11) is clamped by the pawl (13), so that the ratchet (11) cannot rotate in the opposite direction, thereby automatically locking the workpiece, so that after the workpiece is clamped, it cannot be loosened when the grinding chip is subjected to force processing.

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