Nd-Fe-B magnet laser processing equipment based on dust cyclone separation linkage structure

Abstract

The application relates to the technical field of laser cutting, in particular to a neodymium-iron-boron magnet laser processing equipment based on a dust cyclone separation linkage structure, which comprises a machine shell, a bearing mechanism and a cutting mechanism, the cutting mechanism comprises a three-axis moving platform installed in the machine shell and a laser cutting head, and further comprises an upper dust suction mechanism, the upper dust suction mechanism comprises a mounting frame fixedly installed on the laser cutting head, and a dust suction pipe for absorbing dust on the upper surface of the neodymium-iron-boron material is fixedly connected to the bottom of the mounting frame. When the laser does not burn through the material, the neodymium-iron-boron material blocks the laser cutting head, the protective gas sprayed by the laser cutting head directly acts on the neodymium-iron-boron material, and the distance fluctuation between the laser cutting head and the neodymium-iron-boron material becomes larger, at this time, the controller controls the servo motor to drive the turnover plate to rotate from the vertical state to the horizontal state, so that the dust suction pipe can absorb the dust on the upper surface of the neodymium-iron-boron.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a neodymium iron boron magnet laser processing equipment based on a dust cyclone separation linkage structure. Background Technology

[0002] Neodymium magnets, also known as neodymium iron boron magnets, are tetragonal crystals formed from neodymium, iron, and boron. They are widely used in new energy vehicles, wind power equipment, consumer electronics, and medical devices. Their processing involves combining "magnetic characteristics" (easy to attract magnets and easily magnetized during processing) and "material properties" (high brittleness, hardness close to quenched steel), and is divided into four core stages: blank preparation, precision machining, surface treatment, and performance testing.

[0003] Neodymium iron boron (NdFeB) processing must follow the principle of "forming before magnetization, and roughing before finishing" (because magnetization will cause the material to attract iron filings, leading to a decrease in processing accuracy). NdFeB materials are generally first processed into sheets, then laser-cut to the required shape, followed by grinding, polishing, and electroplating, and finally magnetization. Laser cutting equipment generates slag and dust during the cutting process. Existing laser cutting equipment typically has a waste collection structure below the material to collect the slag. However, this method has the following drawback: when the laser does not burn through the sheet, the resulting sparks are fan-shaped and distributed on the upper surface of the NdFeB material. In this case, the waste collection structure below cannot absorb the slag and dust above the NdFeB material, causing the slag and dust to fall onto the upper surface, affecting the processing quality. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a NdFeB magnet laser processing device based on a dust cyclone separation linkage structure, comprising a housing, a support mechanism, and a cutting mechanism. The cutting mechanism includes a three-axis moving platform and a laser cutting head installed inside the housing, and also includes an upper dust collection mechanism. The upper dust collection mechanism includes a mounting bracket fixedly installed on the laser cutting head, and a dust collection pipe for absorbing dust on the surface of the NdFeB material is fixedly connected to the bottom of the mounting bracket.

[0005] The lower dust collection mechanism includes a dust collection funnel installed below the supporting mechanism for absorbing dust on the lower surface of the NdFeB material. The bottom of the dust collection funnel is fixedly connected to a feeding pipe. The bottom of the feeding pipe is equipped with a conveying component and a cyclone separator. A switching component is installed on the feeding pipe.

[0006] The switching assembly includes a connecting pipe fixedly connected to the right side of the feeding pipe and used to communicate with the dust suction pipe. A rotating plate for closing and flipping the connecting pipe is rotatably installed inside the feeding pipe. A servo motor for driving the rotating plate to rotate from a vertical state to a horizontal state is installed on the front side of the feeding pipe. A sensor probe is installed on the laser cutting head. A controller is installed on the front side of the machine housing. The servo motor and the sensor probe are both electrically connected to the controller.

[0007] In one possible implementation, the support mechanism includes a gantry mounted inside the housing and below the three-axis moving platform, with a clamping assembly for clamping and fixing the neodymium iron boron material mounted on the top of the gantry, and the dust collection funnel fixedly mounted on the bottom of the gantry.

[0008] In one possible implementation, a flared opening is fixedly connected to the side of the suction pipe near the laser cutting head nozzle, and a plurality of suction holes are evenly opened circumferentially inside the flared opening. An air suction pipe is fixedly connected to the right side of the suction pipe, and the top end of the connecting pipe is fixedly connected to and communicates with the end of the air suction pipe away from the suction pipe.

[0009] In one possible implementation, the sensor probe is used to detect the capacitance between the laser cutting head and the NdFeB material and convert it into an electrical signal, which is then transmitted to the controller. The controller determines the distance between the laser cutting head and the NdFeB material based on the received electrical signal. When the distance fluctuates greatly, the controller outputs an electrical signal to the servo motor to control the servo motor to drive the flip plate to rotate from a vertical state to a horizontal state. When the distance fluctuates little, the controller outputs an electrical signal to the servo motor to control the servo motor to drive the flip plate to rotate from a horizontal state to a vertical state.

[0010] In one possible implementation, the conveying assembly includes a conveying pipe fixedly connected to the bottom of the feed pipe, the right end of the conveying pipe extending through to the right side of the housing, the bottom of the feed pipe communicating with the top of the conveying pipe, a shaftless spiral blade rotatably mounted inside the conveying pipe, a drive motor fixedly mounted on the left side of the conveying pipe, a drive shaft fixedly mounted on the right side of the output shaft of the drive motor, and the right end of the drive shaft rotatably extending through the interior of the conveying pipe and then fixedly connected to the left end of the shaftless spiral blade.

[0011] In one possible implementation, the cyclone separator includes a cone fixedly connected to the right end of the feed pipe, a blower mounted on the top of the cone, and a pressure relief assembly mounted at the outlet of the blower.

[0012] In one possible implementation, the pressure relief assembly includes a perforated plate fixedly installed at the left end of the blower outlet. A movable rod is slidably mounted on the perforated plate. The left end of the movable rod passes through the left side of the perforated plate and is fixedly connected to a sealing plate for closing the perforated plate. The right end of the movable rod passes through the right side of the perforated plate and is fixedly connected to a baffle plate. A return spring sleeved on the outside of the movable rod is fixedly connected between the left side of the baffle plate and the right side of the perforated plate.

[0013] In one possible implementation, a cleaning assembly is installed inside the dust collection funnel. The cleaning assembly includes a shield fixedly installed on the top of the discharge pipe. An air blowing pipe is rotatably installed on the shield. A plurality of air jets are fixedly connected to the lower surface of the air blowing pipe, which is equidistantly distributed along its length. The bottom ends of the air jets are inclined towards the center of the dust collection funnel. A drive shaft is rotatably installed on the left side of the discharge pipe. The right end of the drive shaft passes through the interior of the discharge pipe and is connected to the bottom end of the air blowing pipe via a bevel gear set. The left end of the drive shaft is connected to a drive shaft via a belt. An air supply pipe is rotatably connected to the bottom end of the air blowing pipe. The right end of the air supply pipe passes through the right side of the discharge pipe and is fixedly connected to and communicates with the output port of the blower.

[0014] The beneficial effects of this invention are as follows: 1. When the laser cutting head cuts NdFeB material, the sensor probe converts the detected capacitance value into an electrical signal and transmits it to the controller. When the laser does not burn through the material, the generated sparks are fan-shaped and distributed on the upper surface of the NdFeB material. At this time, because the NdFeB material blocks the laser cutting head, the protective gas sprayed by the laser cutting head directly acts on the NdFeB material, and the distance between the laser cutting head and the NdFeB material fluctuates more. At this time, the controller controls the servo motor to drive the tilting plate to rotate from a vertical state to a horizontal state, so that the dust collection funnel... The dust collection hopper is separated from the feed pipe, but connected to it. This allows the dust collection hopper to absorb dust from the upper surface of the NdFeB material. Conversely, when the NdFeB material is burned through, it no longer obstructs the laser cutting head. At this point, the distance between the laser cutting head and the NdFeB material is stable. The controller controls the servo motor to drive the tilting plate to rotate from a horizontal to a vertical position, connecting the dust collection hopper to the feed pipe and separating it from the feed pipe. This allows the dust collection hopper to absorb dust from the lower surface of the NdFeB material, preventing dust from adhering to the upper and lower surfaces and improving the processing quality of the NdFeB material.

[0015] 2. The slag produced by the cutting process of this invention falls downward into the dust collection funnel, and then falls from the bottom of the dust collection funnel into the conveying pipe. Due to the use of shaftless spiral blades, when the drive motor drives the shaftless spiral blades to rotate and convey the slag, the center of the shaftless spiral blades can allow the airflow carrying dust to pass through, so that the cyclone separator can both absorb dust and centrally process the slag, eliminating the need to separate the slag and dust, and improving the efficiency of waste recycling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the dust collection mechanism of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the dust collection mechanism of the present invention.

[0020] Figure 5 This is a half-sectional structural diagram of the dust collection funnel of the present invention.

[0021] Figure 6 This is a schematic diagram of the movement state of the connecting pipe of the present invention.

[0022] Figure 7 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0023] Figure 8 This is a front cross-sectional view of the pressure limiting component of the present invention.

[0024] In the diagram: 1. Housing; 2. Load-bearing mechanism; 21. Gantry frame; 22. Clamping assembly; 3. Cutting mechanism; 31. Three-axis moving platform; 32. Laser cutting head; 4. Upper dust collection mechanism; 41. Mounting bracket; 42. Dust collection pipe; 43. Nozzle; 44. Suction pipe; 5. Lower dust collection mechanism; 51. Dust collection funnel; 52. Feeding pipe; 53. Conveying assembly; 531. Feeding pipe; 532. Shaftless spiral blade; 533. Drive motor; 534. Drive shaft; 54. Cyclone separator; 541. Cone; 542. Fan; 543. Pressure relief assembly; 5431. Perforated plate; 5432. Movable rod; 5433. Seal plate; 5434. Baffle; 5435. Return spring; 55. Switching assembly; 551. Connecting pipe; 552. Flip plate; 553. Servo motor; 554. Sensor probe; 555. Controller; 56. Cleaning assembly; 561. Shield; 562. Air blowing pipe; 563. Air nozzle; 564. Drive shaft; 565. Air supply pipe. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Please see Figure 1 - Figure 8 A laser processing device for neodymium iron boron magnets based on a dust cyclone separation linkage structure includes a housing 1, a support mechanism 2, and a cutting mechanism 3. The cutting mechanism 3 includes a three-axis moving platform 31 and a laser cutting head 32 installed inside the housing 1, and also includes an upper dust collection mechanism 4. The upper dust collection mechanism 4 includes a mounting bracket 41 fixedly installed on the laser cutting head 32, and a dust collection pipe 42 for absorbing dust on the surface of the neodymium iron boron material is fixedly connected to the bottom of the mounting bracket 41.

[0027] The lower dust collection mechanism 5 includes a dust collection funnel 51 installed below the support mechanism 2 for absorbing dust on the lower surface of the NdFeB material. The bottom of the dust collection funnel 51 is fixedly connected to a feeding pipe 52. A conveying component 53 and a cyclone separator 54 are installed at the bottom of the feeding pipe 52. A switching component 55 is installed on the feeding pipe 52.

[0028] The switching assembly 55 includes a connecting pipe 551 fixedly connected to the right side of the feeding pipe 52 and used to communicate with the dust suction pipe 42. A rotating flip plate 552 for closing the connecting pipe 551 is rotatably installed inside the feeding pipe 52. A servo motor 553 for driving the flip plate 552 to rotate from a vertical state to a horizontal state is installed on the front side of the feeding pipe 52. A sensor probe 554 is installed on the laser cutting head 32. A controller 555 is installed on the front side of the housing 1. The servo motor 553 and the sensor probe 554 are both electrically connected to the controller 555.

[0029] In practical use, the neodymium iron boron material is installed on the support mechanism 2. The laser cutting head 32 is moved by the three-axis moving platform 31, so that the laser cutting head 32 cuts the neodymium iron boron material. The capacitance value between the laser cutting head 32 and the neodymium iron boron material is detected by the sensor probe 554, and the detected capacitance value is converted into an electrical signal and transmitted to the controller 555. When the laser does not burn through the material, the generated sparks are fan-shaped and distributed on the upper surface of the neodymium iron boron material. At this time, due to the obstruction of the neodymium iron boron material, the sparks are blocked. The laser cutting head 32 emits a protective gas that directly acts on the NdFeB material. The distance between the laser cutting head 32 and the NdFeB material fluctuates more. The controller 555 controls the servo motor 553 to drive the tilting plate 552 to rotate from a vertical state to a horizontal state, so that the dust collection funnel 51 is separated from the feeding pipe 52 and the connecting pipe 551 is connected to the feeding pipe 52, so that the dust suction pipe 42 can absorb the dust on the surface of the NdFeB material and prevent the dust from falling onto the surface of the NdFeB material.

[0030] When the NdFeB material is burned through, it no longer obstructs the laser cutting head 32. At this point, the distance between the laser cutting head 32 and the NdFeB material is stable. The controller 555 controls the servo motor 553 to drive the flip plate 552 to rotate from a horizontal state to a vertical state, so that the dust collection funnel 51 is connected to the feeding pipe 52 and the connecting pipe 551 is separated from the feeding pipe 52. This allows the dust collection funnel 51 to absorb the dust on the lower surface of the NdFeB material, preventing dust from adhering to the upper and lower surfaces of the NdFeB material and improving the processing quality of the NdFeB material.

[0031] By switching the suction pipe 42 and the dust collection funnel 51 to absorb molten slag and dust separately, the mutual interference of the suction airflow on the upper and lower sides can be avoided, thus ensuring the suction effect.

[0032] The dust absorbed by the suction pipe 42 is transported to the discharge pipe 52 through the connecting pipe 551. The dust and slag absorbed by the dust collection funnel 51 fall into the discharge pipe 52 and then fall from the bottom of the discharge pipe 52 into the conveying assembly 53. After that, the conveying assembly 53 transports the dust to the cyclone separator 54 for centralized dust filtration.

[0033] Please see Figure 1 , Figure 2 The supporting mechanism 2 includes a gantry 21 installed inside the housing 1 and located below the three-axis moving platform 31. A clamping assembly 22 for clamping and fixing the neodymium iron boron material is installed on the top of the gantry 21, and a dust collection funnel 51 is fixedly installed on the bottom of the gantry 21. It should be noted that the clamping assembly 22 is prior art.

[0034] In practical use, the clamping component 22 is used to clamp and position the NdFeB material, thereby improving the stability of the NdFeB material and preventing it from moving during the cutting process.

[0035] Please see Figure 2 , Figure 3 A flared mouth 43 is fixedly connected to the side of the suction pipe 42 near the nozzle of the laser cutting head 32. Several suction holes are evenly opened on the circumferential direction of the suction pipe 42, located inside the flared mouth 43. An air suction pipe 44 is fixedly connected to the right side of the suction pipe 42. The top end of the connecting pipe 551 is fixedly connected to and communicates with the end of the air suction pipe 44 away from the suction pipe 42.

[0036] In practical use, when the laser fails to burn through the material, the generated sparks are fan-shaped and distributed on the upper surface of the NdFeB material. The flared mouth 43 blocks the sparks to prevent them from spreading outward. At the same time, the dust is absorbed by the dust suction pipe 42. Then, the dust is transported to the discharge pipe 52 through the suction pipe 44 and the connecting pipe 551 to prevent the dust from falling onto the upper surface of the NdFeB material.

[0037] Please see Figure 1 , Figure 3 and Figure 4 The sensor probe 554 is used to detect the capacitance value between the laser cutting head 32 and the NdFeB material and convert it into an electrical signal, which is then transmitted to the controller 555. The controller 555 determines the distance between the laser cutting head 32 and the NdFeB material based on the received electrical signal. When the distance fluctuates significantly, the controller 555 outputs an electrical signal to the servo motor 553 to control the servo motor 553 to drive the tilting plate 552 from a vertical to a horizontal position. When the distance fluctuates slightly, the controller 555 outputs an electrical signal to the servo motor 553 to control the servo motor 553 to drive the tilting plate 552 from a horizontal to a vertical position. It should be noted that both the sensor probe 554 and the controller 555 are existing technologies. The sensor probe 554 is a capacitive height sensing probe, and the controller 555 is a capacitive height sensing unit controller.

[0038] In practical use, an initial capacitance value is determined based on the initial distance between the laser cutting head 32 and the NdFeB material. When the laser cutting head 32 cuts the NdFeB material, the capacitance value detected by the sensor probe 554 is constant when the distance between the laser cutting head 32 and the NdFeB material is stable. When the distance between the laser cutting head 32 and the NdFeB material is unstable, the capacitance value detected by the sensor probe 554 will change.

[0039] When the laser fails to burn through the material, the NdFeB material blocks the laser cutting head 32, and the protective gas emitted by the laser cutting head 32 directly acts on the NdFeB material, causing the distance between the laser cutting head 32 and the NdFeB material to fluctuate more. At this time, the controller 555 controls the servo motor 553 to drive the tilting plate 552 from a vertical state to a horizontal state, so that the dust suction pipe 42 can absorb the dust on the upper surface of the NdFeB material. When the NdFeB material is burned through, the NdFeB material no longer blocks the laser cutting head 32, and the distance between the laser cutting head 32 and the NdFeB material stabilizes. The controller 555 controls the servo motor 553 to drive the tilting plate 552 from a horizontal state to a vertical state, so that the feeding pipe 52 absorbs the lower surface of the NdFeB material.

[0040] Please see Figure 2 , Figure 4 and Figure 5 The conveying assembly 53 includes a conveying pipe 531 fixedly connected to the bottom of the feeding pipe 52. The right end of the conveying pipe 531 extends through to the right side of the housing 1. The bottom of the feeding pipe 52 is connected to the top of the conveying pipe 531. A shaftless spiral blade 532 is rotatably installed inside the conveying pipe 531. A drive motor 533 is fixedly installed on the left side of the conveying pipe 531. A drive shaft 534 is fixedly installed on the right side of the output shaft of the drive motor 533. The right end of the drive shaft 534 rotatably extends through the inside of the conveying pipe 531 and is fixedly connected to the left end of the shaftless spiral blade 532.

[0041] Please see Figure 2 , Figure 4 and Figure 8 The cyclone separator 54 includes a cone 541 fixedly connected to the right end of the feed pipe 531. A blower 542 is installed on the top of the cone 541, and a pressure relief assembly 543 is installed at the output port of the blower 542. It should be noted that the cone 541 and the blower 542 are prior art, and a filter structure is installed at the input port of the blower 542.

[0042] In practical use, the air inside the cone 541 is discharged by the fan 542, creating a negative pressure in the cone 541. This allows the conveying assembly 53 and the discharge pipe 52 to absorb and convey the dust. The dust and slag entering the discharge pipe 52 fall downward into the conveying pipe 531. The drive motor 533 drives the drive shaft 534 and the shaftless spiral blade 532 to rotate. The shaftless spiral blade 532 conveys the slag to the right. Since the central axis of the shaftless spiral blade 532 is hollow, the airflow can pass through the central axis of the shaftless spiral blade 532 carrying dust. This allows the cyclone separator 54 to absorb both dust and slag, eliminating the need to separate the slag and dust and improving the efficiency of waste recycling.

[0043] Please see Figure 8The pressure relief assembly 543 includes a perforated plate 5431 fixedly installed at the left end of the outlet of the blower 542. A movable rod 5432 is slidably installed on the perforated plate 5431. The left end of the movable rod 5432 passes through the left side of the perforated plate 5431 and is fixedly connected to a sealing plate 5433 for closing the perforated plate 5431. The right end of the movable rod 5432 passes through the right side of the perforated plate 5431 and is fixedly connected to a baffle 5434. A return spring 5435 sleeved on the outside of the movable rod 5432 is fixedly connected between the left side of the baffle 5434 and the right side of the perforated plate 5431.

[0044] Please see Figure 4 , Figure 5 , Figure 7 and Figure 8 The dust collection funnel 51 is equipped with a cleaning component 56. The cleaning component 56 includes a shield 561 fixedly installed on the top of the discharge pipe 52. An air blowing pipe 562 is rotatably installed on the shield 561. Several air jets 563 are fixedly connected to the lower surface of the air blowing pipe 562, which are evenly distributed along its length. The bottom end of the air jets 563 is inclined towards the center of the dust collection funnel 51. A drive shaft 564 is rotatably installed on the left side of the discharge pipe 52. The right end of the drive shaft 564 passes through the interior of the discharge pipe 52 and is connected to the bottom end of the air blowing pipe 562 through a bevel gear set. The left end of the drive shaft 564 is connected to the drive shaft 534 through a belt. An air supply pipe 565 is rotatably connected to the bottom end of the air blowing pipe 562. The right end of the air supply pipe 565 passes through the right side of the discharge pipe 52 and is fixedly connected to and communicates with the output port of the blower 542.

[0045] In practical use, in the initial state, the return spring 5435 is in a compressed state. The rebound force of the return spring 5435 pushes the baffle 5434 to move to the right. The baffle 5434 pulls the sealing plate 5433 to fit against the right side of the perforated plate 5431 through the movable rod 5432. The sealing plate 5433 seals the perforated plate 5431, so that the output port of the blower 542 first delivers the discharged air to the air supply pipe 565. Then the air supply pipe 565 delivers the air to the blowing pipe 562. The air is blown onto the inner wall of the dust collection funnel 51 through the jet nozzle 563 on the lower surface of the blowing pipe 562. At the same time, the drive shaft 534 drives the transmission shaft 564 to rotate through the belt. The transmission shaft 564 drives the blowing pipe 562 to rotate through the bevel gear. This can blow the slag and dust attached to the inner wall of the dust collection funnel 51 into the feed pipe 52, avoiding dust from adhering to the inner wall of the dust collection funnel 51.

[0046] When the airflow from the blower 542 increases, the air pressure at the outlet of the blower 542 increases. When the air pressure exceeds the restoring force of the return spring 5435, the air supply pipe 565 is insufficient to discharge the air output by the blower 542 in time. At this time, the baffle plate 5433 is pushed to the left by the airflow, so that the airflow can be discharged outward through the perforated plate 5431, avoiding the blower 542 from malfunctioning due to poor exhaust and improving the stability of the blower 542 during operation.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A laser processing device for neodymium iron boron magnets based on a dust cyclone separation linkage structure, comprising a housing (1), a support mechanism (2), and a cutting mechanism (3), wherein the cutting mechanism (3) comprises a three-axis moving platform (31) and a laser cutting head (32) installed inside the housing (1), characterized in that, Also includes: The upper dust collection mechanism (4) includes a mounting bracket (41) fixedly mounted on the laser cutting head (32), and a dust collection tube (42) for absorbing dust on the upper surface of the neodymium iron boron material is fixedly connected to the bottom of the mounting bracket (41). The lower dust collection mechanism (5) includes a dust collection funnel (51) installed below the bearing mechanism (2) for absorbing dust on the lower surface of the neodymium iron boron material. The bottom of the dust collection funnel (51) is fixedly connected to a feeding pipe (52). The bottom of the feeding pipe (52) is equipped with a conveying assembly (53) and a cyclone separator (54). A switching assembly (55) is installed on the feeding pipe (52). The switching assembly (55) includes a connecting pipe (551) fixedly connected to the right side of the feeding pipe (52) and used to communicate with the suction pipe (42). A flip plate (552) for closing the connecting pipe (551) is rotatably installed inside the feeding pipe (52). A servo motor (553) for driving the flip plate (552) to rotate from a vertical state to a horizontal state is installed on the front side of the feeding pipe (52). A sensor probe (554) is installed on the laser cutting head (32). A controller (555) is installed on the front side of the housing (1). The servo motor (553) and the sensor probe (554) are both electrically connected to the controller (555). The sensor probe (554) is a capacitive height sensing probe, used to detect the capacitance value between the laser cutting head (32) and the neodymium iron boron material and convert it into an electrical signal to be transmitted to the controller (555). The controller (555) determines the distance between the laser cutting head (32) and the neodymium iron boron material based on the received electrical signal. When the distance fluctuates greatly, the controller (555) outputs an electrical signal to the servo motor (553) to control the servo motor (553) to drive the flip plate (552) to rotate from the vertical state to the horizontal state. When the distance fluctuates little, the controller (555) outputs an electrical signal to the servo motor (553) to control the servo motor (553) to drive the flip plate (552) to rotate from the horizontal state to the vertical state.

2. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 1, characterized in that: The bearing mechanism (2) includes a gantry (21) installed inside the housing (1) and located below the three-axis moving platform (31). The top of the gantry (21) is equipped with a clamping assembly (22) for clamping and fixing neodymium iron boron material. The dust collection funnel (51) is fixedly installed at the bottom of the gantry (21).

3. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 1, characterized in that: The suction pipe (42) is fixedly connected to a flared mouth (43) on the side near the nozzle of the laser cutting head (32). The suction pipe (42) has several suction holes evenly opened in the circumferential direction inside the flared mouth (43). The suction pipe (44) is fixedly connected to the right side of the suction pipe (42). The top end of the connecting pipe (551) is fixedly connected to and communicates with the end of the suction pipe (44) away from the suction pipe (42).

4. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 1, characterized in that: The conveying assembly (53) includes a conveying pipe (531) fixedly connected to the bottom of the feeding pipe (52). The right end of the conveying pipe (531) extends through to the right side of the housing (1). The bottom of the feeding pipe (52) is connected to the top of the conveying pipe (531). A shaftless spiral blade (532) is rotatably installed inside the conveying pipe (531). A drive motor (533) is fixedly installed on the left side of the conveying pipe (531). A drive shaft (534) is fixedly installed on the right side of the output shaft of the drive motor (533). The right end of the drive shaft (534) rotatably extends through the inside of the conveying pipe (531) and is fixedly connected to the left end of the shaftless spiral blade (532).

5. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 4, characterized in that: The cyclone separator (54) includes a cone (541) fixedly connected to the right end of the feed pipe (531), a blower (542) is installed on the top of the cone (541), and a pressure relief assembly (543) is installed at the output port of the blower (542).

6. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 5, characterized in that: The pressure relief assembly (543) includes a perforated plate (5431) fixedly installed at the left end of the outlet of the blower (542). A movable rod (5432) is slidably installed on the perforated plate (5431). The left end of the movable rod (5432) passes through the left side of the perforated plate (5431) and is fixedly connected to a sealing plate (5433) for closing the perforated plate (5431). The right end of the movable rod (5432) passes through the right side of the perforated plate (5431) and is fixedly connected to a baffle plate (5434). A return spring (5435) sleeved on the outside of the movable rod (5432) is fixedly connected between the left side of the baffle plate (5434) and the right side of the perforated plate (5431).

7. The laser processing equipment for neodymium iron boron magnets based on a dust cyclone separation linkage structure according to claim 6, characterized in that: The dust collection funnel (51) is equipped with a cleaning assembly (56). The cleaning assembly (56) includes a shield (561) fixedly installed on the top of the feed pipe (52). An air blowing pipe (562) is rotatably installed on the shield (561). A plurality of air jets (563) are fixedly connected to the lower surface of the air blowing pipe (562) and are evenly distributed along its length. The bottom end of the air jets (563) is inclined toward the center of the dust collection funnel (51). The left side of the feed pipe (52) is... A drive shaft (564) is rotatably mounted on the side. The right end of the drive shaft (564) passes through the inside of the feed pipe (52) and is connected to the bottom end of the air blowing pipe (562) through a bevel gear set. The left end of the drive shaft (564) is connected to the drive shaft (534) through a belt. The bottom end of the air blowing pipe (562) is rotatably connected to an air supply pipe (565). The right end of the air supply pipe (565) passes through the right side of the feed pipe (52) and is fixedly connected to the output port of the blower (542).

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