Neodymium iron boron automatic feeding and punching machine

Abstract

The present application relates to the technical field of neodymium iron boron drilling, and discloses an automatic feeding and punching machine for neodymium iron boron, which comprises a clamping mechanism, the clamping mechanism comprises a cylinder body, symmetrical guide bases are arranged in the piston cavity of the cylinder body, the guide bases are slidably connected with guide material hollow pipes with piston bodies, the cylinder body is provided with an air inlet joint and an air outlet joint; an end cover with a material butt joint pipe is arranged at the left end of the cylinder body, a first guide sleeve is arranged in the material butt joint pipe, and the guide material hollow pipes are provided with adaptive guide sliding grooves; a chuck fixing seat is arranged at the right end of the cylinder body, a first sliding bushing, a first guide rod and a second sliding bushing are sequentially arranged on the inner wall of the chuck fixing seat from left to right, an elastic chuck pipe is threadedly connected with the isolation cavity of the chuck fixing seat, and a second guide sleeve is arranged at the left end of the elastic chuck pipe; the present application replaces the traditional rear-pulling clamping mode with a front-pushing clamping structure, thereby eliminating the axial displacement problem in the clamping process of the neodymium iron boron bar from the root cause, and ensuring the position accuracy and coaxiality accuracy of the drilling process.

Description

Technical Field

[0001] This invention relates to the field of neodymium iron boron drilling technology, and particularly to an automatic neodymium iron boron feeding and drilling machine. Background Technology

[0002] Neodymium iron boron (NdFeB) is a high-performance rare-earth permanent magnet material widely used in precision motors, new energy equipment, electronic components and automated machinery. Drilling of rod-shaped NdFeB workpieces is the core finishing process in its forming production, which has high requirements for processing stability, drilling accuracy and finished product consistency.

[0003] Chinese utility model patent CN219131452U discloses a three-station drilling machine, relating to the field of processing equipment. It includes a first mounting platform, a second mounting platform, a spindle box, a third mounting platform, a fourth mounting platform, a fifth mounting platform, and a tool holder. A positioning tool, a drilling tool, and a reaming tool are arranged in parallel on the tool holder. The spindle box can be moved by the second and first mounting platforms, which are movable relative to each other, located at the bottom of the spindle box. Through the coordinated action of the third, fourth, and fifth mounting platforms, the tool holder can align any one of the positioning tool, drilling tool, or reaming tool with the spindle box by moving back and forth.

[0004] Currently, in publicly available technologies, drilling equipment for NdFeB rods generally uses chucks for workpiece clamping and positioning. Existing chuck structures mostly employ traditional pull-back fixing schemes. This type of structure generates axial tension on the rod during clamping and locking, causing a slight backward displacement of the NdFeB rod. This directly results in drilling position deviation, poor hole coaxiality, and difficulty in achieving the required drilling accuracy. Existing technologies can no longer meet the requirements for high-precision, continuous, and automated drilling production of NdFeB rods. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic feeding and punching machine for NdFeB rods, which solves the problem of low clamping accuracy of NdFeB rods mentioned in the background art.

[0006] The technical solution adopted in this invention is as follows: An automatic feeding and punching machine for neodymium iron boron (NdFeB) includes a cabinet, a groove installed on the top surface of the cabinet, two symmetrically arranged first supports installed in the groove, and a clamping mechanism installed on the first supports. The clamping mechanism includes a cylinder, a piston chamber inside the cylinder, two symmetrically arranged guide seats connected inside the piston chamber, a guide hollow tube slidably connected to the inner hole of the guide seats, a piston body connected to the outer wall of the guide hollow tube, and a piston body slidably connected to the piston chamber. An air inlet and an exhaust connector communicating with the piston chamber are installed on the side wall of the cylinder. An end cap is connected to the left end face of the cylinder. A material connecting pipe is connected to the left end face of the end cap. A symmetrically arranged first guide sleeve is installed on the inner wall of the material connecting pipe. The first guide sleeve is arc-shaped, and the gap between the two first guide sleeves is in the vertical direction. A clamp fixing seat is connected to the right end face of the cylinder. A first sliding cavity and an isolation cavity are sequentially opened on the inner wall of the clamp fixing seat from left to right. The system comprises a body and a second sliding cavity. A first sliding bushing is slidably connected within the first sliding cavity and is connected to a hollow guide tube. A first guide rod, arranged at equal angles, is connected to the end face of the first sliding bushing and is slidably connected to the isolation cavity. A second sliding bushing is connected to the free end of the first guide rod and is slidably connected to the second sliding cavity. The right end of the second sliding bushing is flared. An elastic chuck tube is threaded into the inner hole of the isolation cavity. The outer wall of the right end of the elastic chuck tube is trumpet-shaped and fits the second sliding bushing. The left side wall of the elastic chuck tube has spaced-apart first through grooves, and the right side wall has spaced-apart second through grooves. A symmetrically arranged second guide sleeve is connected to the left end of the elastic chuck tube. The second guide sleeves are arc-shaped, and the gap between the two second guide sleeves is vertical. The inner wall of the hollow guide tube has guide grooves that fit the first and second guide sleeves.

[0007] The beneficial effects of this invention are as follows: This equipment replaces the traditional pull-back clamping method with a front-push clamping structure, eliminating the axial displacement problem in the clamping process of NdFeB bars from the root. Combined with the elastic chuck tube with a multi-angle through-slot structure, it effectively improves the fit and stability of workpiece clamping, ensuring the positional accuracy and coaxiality accuracy of drilling. At the same time, by connecting the first guide sleeve and the second guide sleeve to each feeding pipeline, it eliminates the structural interference problem in the material conveying process. Combined with the fully automatic push structure, it realizes stable feeding of bars of different lengths and specifications, avoiding the problems of material jamming and feeding positioning deviation in traditional equipment. The equipment is equipped with an anti-chipping structure that adapts to the workpiece end face, effectively protecting the bar stock end face when the drill bit penetrates the workpiece, avoiding processing defects such as chipping and end face scratches, and steadily improving the finished product qualification rate. In addition, relying on the through-hole dust removal structure, high-pressure cleaning of the workpiece hole and clamping area can be performed after a single processing, promptly removing residual debris and preventing debris accumulation from affecting subsequent clamping accuracy and continuous operation performance of the equipment. With the automatic opening and closing sealing and plugging structure, the feeding pipeline can be closed during the cleaning operation, effectively preventing sewage and debris from flowing back and contaminating the internal pipeline of the equipment, ensuring the stability and cleanliness of the equipment for long-term continuous automated processing, and is fully adapted to the high-precision and continuous drilling processing production needs of NdFeB bars. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of this application.

[0009] Figure 2 This is a top view of the structure of this application.

[0010] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism.

[0011] Figure 4 This is a side view of the clamping mechanism.

[0012] Figure 5 This is a top-view cross-sectional structural diagram of the cylinder block.

[0013] Figure 6 This is a side view sectional diagram of the cylinder block.

[0014] Figure 7 This is a schematic diagram of the three-dimensional structure of the elastic clamp tube.

[0015] Figure 8 This is a schematic diagram of the three-dimensional structure of the hollow tube for material feeding.

[0016] Figure 9 This is a three-dimensional structural diagram of a material tee.

[0017] Figure 10 A three-dimensional structural diagram of an extended push rod.

[0018] Figure 11 This is a side view sectional structural diagram of the push rod.

[0019] Figure 12 A top-view cross-sectional structural diagram of the protective cap.

[0020] Figure 13 A top-view cross-sectional structural diagram of the anti-collapse sleeve.

[0021] Figure 14 Schematic diagram of the top cross-sectional structure of the dust removal through hole Figure 1 .

[0022] Figure 15 Schematic diagram of the top cross-sectional structure of the dust removal through hole Figure 2 .

[0023] Figure 16 This is a schematic diagram of the front cross-sectional structure of the fan-shaped sealing plate.

[0024] Figure 17 This is a three-dimensional structural diagram of a fan-shaped sealing plate.

[0025] In the diagram: 1. Cabinet; 2. Tank; 3. First Support; 4. Clamping Mechanism; 5. Cylinder; 6. Piston Chamber; 7. Guide Seat; 8. Hollow Guide Tube; 9. Piston Body; 10. Air Inlet Connector; 11. Exhaust Connector; 12. End Cap; 13. Material Connecting Pipe; 14. First Guide Sleeve; 15. Guide Slide; 16. Clamp Fixing Seat; 17. First Slide Chamber; 18. Isolation Chamber; 19. Second Slide Chamber; 20. First Sliding Bushing; 21. First Guide Rod; 22. Second Sliding Bushing; 23. Elastic Clamp Tube; 24. First Through Slot; 25. Second Through Slot; 26. Second Guide Sleeve; 27. Material T-Pipe; 28. Guide Plate; 29. ​​Second Support; 30. Pushing Mechanism; 31. Bearing Plate; 32. Second Guide Rail; 33. Second Slide; 34. First Carrier; 3 5. Positioning bushing; 36. Extended push rod; 37. Locking positioning pin; 38. Second carrier; 39. Push telescopic rod; 40. Sensing target plate; 41. Sensor adjustment seat; 42. Proximity sensor; 43. Anti-chipping assembly; 44. Push top rod; 45. Guide cone; 46. Sliding sleeve; 47. First spring; 48. Limiting groove; 49. Limiting pin; 50. Positioning pin hole; 51. Locking pin; 52. Protective top cap; 53. Second blind hole; 54. Spring mounting seat; 55. Second spring; 56. Anti-chipping sleeve; 57. Linear bearing; 58. Sealing gasket; 59. Dust removal through hole; 60. Third spring; 61. Second annular groove; 62. Positioning groove; 63. Fourth spring; 64. Fan-shaped sealing plate; 65. Sealing connection plate; 66. Connecting hose. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms “first,” “second,” “third,” “fourth,” “fifth,” “sixth,” “seventh,” “eighth,” “ninth,” and “tenth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] like Figure 1-9As shown in Embodiment 1, an automatic feeding and punching machine for neodymium iron boron (NdFeB) includes a cabinet 1. A trough 2 is installed on the top surface of the cabinet 1. Two symmetrically arranged first supports 3 are installed in the trough 2. A clamping mechanism 4 is installed on the first supports 3. The clamping mechanism 4 includes a cylinder 5. The cylinder 5 has a piston chamber 6. Two symmetrically arranged guide seats 7 are connected to the piston chamber 6. A guide hollow tube 8 is slidably connected to the inner hole of the guide seat 7. A piston body 9 is connected to the outer wall of the guide hollow tube 8. The piston body 9 is slidably connected to the piston chamber 6. An air inlet 10 and an exhaust 11 communicating with the piston chamber 6 are installed on the side wall of the cylinder 5. An end cap 12 is connected to the left end face of the cylinder 5. A material connecting pipe 13 is connected to the left end face of the end cap 12. The inner wall of the material connecting pipe 13 is fitted with... The cylinder 5 is equipped with symmetrically arranged first guide sleeves 14, which are arc-shaped. The gap between the two first guide sleeves 14 is in the vertical direction. The first guide sleeves 14 are used to connect the material connecting pipe 13 and the guide hollow pipe 8 to avoid structural interference during the conveying of NdFeB rods. One end of the material connecting pipe 13 is connected to a material tee pipe 27. A guide plate 28 is installed on the horizontal section of the material tee pipe 27. The cross-sectional shape of the guide plate 28 is V-shaped. The right end of the guide plate 28 abuts against the first guide sleeves 14. The inner wall of the guide hollow pipe 8 has a guide groove 15 that matches the first guide sleeves 14. The upper and lower inner walls of the guide groove 15 remain unchanged to ensure that no structural interference occurs during the conveying of NdFeB rods. The right end face of the cylinder 5 is connected to a chuck fixing seat 16. The inner wall of the fixed base 16 is provided with a first sliding cavity 17, an isolation cavity 18, and a second sliding cavity 19 from left to right. A first sliding bushing 20 is slidably connected in the first sliding cavity 17 and is connected to the guide hollow tube 8. A first guide rod 21 arranged at equal angles is connected to the end face of the first sliding bushing 20 and is slidably connected to the isolation cavity 18. A second sliding bushing 22 is connected to the free end of the first guide rod 21 and is slidably connected to the second sliding cavity 19. The right end of the second sliding bushing 22 is flared. An elastic chuck tube 23 is threadedly connected to the inner hole of the isolation cavity 18. The outer wall of the right end of the elastic chuck tube 23 is trumpet-shaped and is adapted to the second sliding bushing 22. The bushing 22 is used to compress the elastic clamp tube 23 to clamp the NdFeB rod. The left side wall of the elastic clamp tube 23 has a first through groove 24 arranged at 180° intervals, and the right side wall of the elastic clamp tube 23 has a second through groove 25 arranged at 90° intervals. The left end of the elastic clamp tube 23 is connected to a symmetrically arranged second guide sleeve 26. The second guide sleeve 26 is arc-shaped, and the gap between the two second guide sleeves 26 is in the vertical direction. The second guide sleeve 26 is used to connect the elastic clamp tube 23 and the guide hollow tube 8 to avoid structural interference when the NdFeB rod is conveyed. The inner wall of the guide hollow tube 8 has a guide groove 15 adapted to the second guide sleeve 26. The upper and lower inner walls of the guide groove 15 remain unchanged to ensure that no structural interference occurs when the NdFeB rod is conveyed.Technical Problems: Existing NdFeB drilling machines mostly adopt a pull-back clamping structure. During clamping, the bar stock is prone to axial displacement, resulting in poor clamping and positioning accuracy. Furthermore, the bar stock conveying channel has poor connectivity, easily leading to structural interference and jamming, making it difficult to guarantee drilling accuracy. Motion Process: The NdFeB bar stock is sequentially conveyed through the material connecting pipe 13, the second guide sleeve 26, the guide hollow tube 8, and the first guide sleeve 14 to the interior of the elastic chuck tube 23. Air intake in the cylinder 5 drives the piston body 9, causing the guide hollow tube 8 to slide. This, in conjunction with the first sliding bushing 20 and the first guide rod 21, causes the second sliding bushing 22 to compress the elastic chuck tube 23, achieving bar stock clamping. After clamping, the drilling machine drills holes in the bar stock. After processing, the cylinder 5 exhausts air, the guide hollow tube 8 reverses and resets, and the elastic chuck tube 23 springs back to release the bar stock. Beneficial effects: The forward-pushing clamping method eliminates the problem of axial displacement of the bar stock, ensuring accurate clamping and positioning, and improving drilling accuracy; the first and second guide sleeve structures connect the various feeding channels, avoiding interference and jamming of the conveying structure; the elastic chuck tube 23 is equipped with multiple sets of through slots at different angles, enhancing its own elastic deformation capability and making the clamping more stable and reliable.

[0031] like Figure 10As shown, as an optimization of Embodiment 1, a symmetrically arranged second support 29 is installed inside the tank 2. A pushing mechanism 30 is installed on the second support 29. The pushing mechanism 30 includes a bearing plate 31 connected to the second support 29. A second guide rail 32 is installed on the bearing plate 31. A second slide block 33 is slidably connected to the second guide rail 32. A first carrier 34 is installed on the top surface of the second slide block 33. A positioning bushing 35 is installed on the first carrier 34. An extended push rod 36 is slidably connected to the positioning bushing 35. A locking positioning pin 37 for fixing the extended push rod 36 is connected to the side wall of the positioning bushing 35. The extended push rod 36 is used to push the NdFeB rod material along the guide plate 2. 8. The second guide sleeve 26, the guide hollow tube 8, and the first guide sleeve 14 move, and the neodymium iron boron bar enters the elastic chuck tube 23. The extended push rod 36 stops moving. A second carrier 38 is installed on the bearing plate 31, and a push telescopic rod 39 is installed on the second carrier 38. The piston end of the push telescopic rod 39 is connected to the second slide 33. Preferably, a sensing target plate 40 is installed on the side of the second slide 33, and a sensor adjustment seat 41 is installed on the top surface of the bearing plate 31. The cross-sectional shape of the sensor adjustment seat 41 is U-shaped, and a proximity sensor 42 is installed on the sensor adjustment seat 41. The proximity sensor 42 is used to detect the position of the sensing target plate 40. Movement Process: The pusher telescopic rod 39 drives the second slide block 33 to slide along the second guide rail 32, which in turn drives the extended pusher rod 36 to move horizontally. The bar stock is pushed sequentially through the guide plate 28, the second guide sleeve 26, the guide hollow tube 8, and the first guide sleeve 14, and then transported to the elastic chuck tube 23 for positioning. The proximity sensor 42, in conjunction with the sensing target plate 40, detects the movement stroke in real time and controls the pushing distance. Beneficial Effects: This system achieves fully automatic bar stock pushing, replacing manual operation, reducing labor intensity, and improving pushing and positioning accuracy. The extended pusher rod 36 is adjustable in length, adapting to bar stock processing of different specifications and lengths, thus broadening the equipment's adaptability.

[0032] like Figure 11As shown, as an optimization of Embodiment 1, the end face of the extended push rod 36 is connected to an anti-splitting component 43. The anti-splitting component 43 includes a push rod 44, which has a T-shaped cross-section. The head of the push rod 44 has a guide cone 45. A sliding sleeve 46 is slidably connected to the side wall of the push rod 44. A first spring 47 is sleeved on the side wall of the push rod 44, and the first spring 47 is located between the push rod 44 and the sliding sleeve 46. The side wall of the sliding sleeve 46 has a limiting groove 48, and a limiting pin 49 that is slidably connected to the limiting groove 48 is connected to the side wall of the push rod 44. The side wall of the sliding sleeve 46 has a positioning pin hole 50. A locking pin 51 is slidably connected to the positioning pin hole 50, and a guide cone 45 is used to push the locking pin 51 outward. A protective cap 52 is connected to the right end of the sliding sleeve 46. The protective cap 52 abuts against the NdFeB rod. The center of the protective cap 52 has a second blind hole 53. The inner diameter of the second blind hole 53 is larger than the diameter of the deep hole drill bit used. When the protective cap 52 abuts against the NdFeB rod, the second blind hole 53 can prevent the edge from chipping when the deep hole drill bit penetrates the NdFeB rod. The extended push rod 36 continues to move, and the guide cone 45 pushes the locking pin 51 out to abut against the inner wall of the guide hollow tube 8, further improving the support stability of the extended push rod 36. Technical problem: The NdFeB rod is prone to chipping defects at the moment of penetration during drilling, which affects the appearance and quality of the product. At the same time, the support stability of the extended push rod 36 is insufficient during the pushing process, which can easily cause the rod to deviate and shake. Movement Process: After the extended push rod 36 pushes the bar stock into position, the protective cap 52 fits against the end face of the bar stock, and the second blind hole 53 covers the drilling position, blocking drilling debris and preventing edge chipping. The extended push rod 36 continues to feed in small increments, and the guide cone 45 pushes the locking pin 51 to extend and press against the inner wall of the guide hollow tube 8, strengthening the support rigidity of the extended push rod 36. After processing is completed, the spring returns to its original position, and all structures return to their initial state. Beneficial Effects: Effectively solves the problem of bar stock penetration and edge chipping during drilling, improving the appearance quality of finished products and the processing qualification rate; the locking pin 51 provides tight support, improving the pushing stability of the extended push rod 36, eliminating bar stock deviation and shaking during processing, and ensuring drilling accuracy.

[0033] like Figure 12As shown in Embodiment 2, unlike Embodiment 1, a spring mounting base 54 is installed inside the second blind hole 53. A second spring 55 is connected to the spring mounting base 54, and an anti-splitting sleeve 56 is connected to the free end of the second spring 55, protruding outside the second blind hole 53. Technical problem: The fixed anti-splitting structure of Embodiment 1 cannot adapt to NdFeB rods of different lengths, resulting in poor fit and unstable anti-splitting effect. Movement process: When the protective cap 52 is attached to the end face of the rod, the retractable anti-splitting sleeve 56 preferentially contacts the drilled position of the rod, compressing and deforming the second spring 55. The spring force ensures that the anti-splitting sleeve 56 tightly adheres to and presses against the end face of the rod. Beneficial effect: Utilizing the spring's telescopic characteristics achieves self-adaptation, adapting to the processing of rods of different lengths, ensuring that the anti-splitting sleeve 56 always tightly adheres to the drilled area, and continuously and stably performing its anti-splitting function.

[0034] like Figure 13 As shown, as an optimization of Embodiment 2, a linear bearing 57 is installed in the second blind hole 53. The inner hole of the linear bearing 57 is used to install the anti-chipping sleeve 56 and the spring mounting seat 54. By setting the linear bearing 57, the anti-chipping sleeve 56 can press the NdFeB rod material tightly, and the anti-chipping effect is better as the deep hole drill bit rotates. Technical problem: The conventional anti-chipping sleeve 56 is a fixed structure and cannot rotate synchronously with the drill bit. During processing, it will rub and scratch against the end face of the rod material, which can easily damage the workpiece surface and affect the anti-chipping and processing effect. Movement process: When the drill bit rotates at high speed to drill, the linear bearing 57 provides the anti-chipping sleeve 56 with rotational freedom, so that the anti-chipping sleeve 56 rotates synchronously with the drill bit, and at the same time, it continuously presses the end face of the rod material under the action of the second spring 55. Beneficial effect: It realizes the synchronous rotation of the anti-chipping sleeve 56 and the drill bit, eliminates the relative friction between the parts, avoids wear and scratches on the end face of the rod material, further optimizes the anti-chipping effect, and improves the product processing quality.

[0035] like Figure 14 and 15As shown, as an optimization of Embodiment 2, the cross-sectional shape of the spring mounting base 54 is T-shaped. The small-diameter section of the spring mounting base 54 extends into the anti-breakage sleeve 56, and a sealing gasket 58 is used to connect the spring mounting base 54 and the anti-breakage sleeve 56. A dust removal through hole 59 is opened in the center of the spring mounting base 54, which passes through the protective top cap 52, the push rod 44, and the extended push rod 36. The dust removal through hole 59 on the push rod 44 and the dust removal through hole 59 on the spring mounting base 54 are connected by a connecting hose 66. After drilling, the elastic chuck tube 23 releases the NdFeB rod and injects water or air into the dust removal through hole 59 to clean the residue generated during drilling of the NdFeB rod, which is beneficial for the next clamping operation. Technical problem: The debris and residue generated during drilling are easy to remain in the rod hole and the clamping area of ​​the chuck. The accumulation of residue will affect the subsequent clamping accuracy and clamping stability, and reduce the continuity of processing. Movement Process: After drilling a single bar and releasing the workpiece via the elastic chuck tube 23, high-pressure airflow or water flow is introduced through the dust removal hole 59, which runs through the center of the extended push rod 36, the push rod 44, and the protective cap 52, to flush away and clean the residual debris inside the hole and in the clamping area. Beneficial Effects: Automatic cleaning of post-processing residues is achieved, eliminating the potential for residue buildup, ensuring stable clamping and holding of subsequent bar stock, and effectively improving the continuous processing efficiency of the equipment.

[0036] like Figure 16 and 17 As shown, as an optimization of Embodiment 2, after water injection, the residue may flow back into the material guiding hollow tube 8. A third spring 60 is connected to the locking pin 51 located in the sliding sleeve 46. The third spring 60 causes the locking pin 51 to retract into the positioning pin hole 50. A second annular groove 61 is opened on the side wall of the sliding sleeve 46, and a positioning groove 62 is opened on the top surface of the locking pin 51. A fourth spring 63 is installed in the positioning groove 62. A sector-shaped sealing plate 64 is connected to the free end of the fourth spring 63. A sealing connecting plate 65 is slidably connected between adjacent sector-shaped sealing plates 64. In the normal state, the sector-shaped sealing plate 64 and the sealing connecting plate 65 retract into the second annular groove 61. When the locking pin 51 is extended outward, the sector-shaped sealing plate 64 and the sealing connecting plate 65 are extended. With the cooperation of the sliding sleeve 46, the inner hole of the material guiding hollow tube 8 can be sealed to prevent the backflow of residue and sewage. Technical Issue: During high-pressure cleaning of residues, wastewater and debris easily flow back along the hollow guide tube 8, causing pipe blockage and structural contamination, affecting the normal operation of internal components. Movement Process: When the extended push rod 36 pushes the bar stock, the guide cone 45 pushes the locking pin 51 outward, causing the fan-shaped sealing plate 64 and the sealing connection plate 65 to unfold synchronously, sealing the inner channel of the hollow guide tube 8. During cleaning, it prevents wastewater and residue from flowing back; after processing, each spring-driven structure retracts and resets. Beneficial Effects: The hollow guide tube 8 automatically seals during processing and cleaning, effectively preventing wastewater and residue backflow, protecting the cleanliness of the internal structure, and ensuring long-term stable operation of the equipment.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic feeding and punching machine for neodymium iron boron magnets, characterized in that, The system includes a cabinet (1), a groove (2) installed on the top surface of the cabinet (1), a first support (3) installed inside the groove (2), a clamping mechanism (4) installed on the first support (3), the clamping mechanism (4) includes a cylinder (5), two symmetrically arranged guide seats (7) are fixed inside the piston chamber (6) of the cylinder (5), a guide hollow tube (8) is slidably connected to the inner hole of the guide seat (7), a piston body (9) that slides with the piston chamber (6) is connected to the outer wall of the guide hollow tube (8), and an air inlet (10) and an exhaust (11) that communicate with the piston chamber (6) are installed on the side wall of the cylinder (5); an end cap (12) is connected to the left end face of the cylinder (5); a chuck fixing seat (16) is connected to the right end face of the cylinder (5), and the chuck fixing seat (16) has... The inner wall is provided with a first sliding cavity (17), an isolation cavity (18), and a second sliding cavity (19) from left to right. The first sliding cavity (17) is slidably fitted with a first sliding bushing (20) connected to the guide hollow tube (8). The end face of the first sliding bushing (20) is connected to a first guide rod (21) slidably connected to the isolation cavity (18). The free end of the first guide rod (21) is connected to a second sliding bushing (22) slidably fitted to the second sliding cavity (19). An elastic clamp tube (23) is fixedly connected to the inner hole of the isolation cavity (18). The outer side wall of the elastic clamp tube (23) is wedge-shaped and adapted to the inner side wall of the second sliding bushing (22). The trough (2) is equipped with symmetrically arranged second supports (29). A pushing mechanism is installed on the second supports (29). (30) The pushing mechanism (30) includes a bearing plate (31) connected to the second support (29), a second guide rail (32) is mounted on the bearing plate (31), a second slide block (33) is slidably mounted on the second guide rail (32), a first carrier (34) is mounted on the top surface of the second slide block (33), and an adjustable extension push rod (36) is mounted on the first carrier (34); a second carrier (38) is mounted on the bearing plate (31), and a push telescopic rod (39) connected to the second slide block (33) is mounted on the second carrier (38); the end face of the extension push rod (36) is connected to an anti-scraping component (43), the anti-scraping component (43) includes a push top rod (44) with a T-shaped cross-section, and the head of the push top rod (44) has a guide. The cone (45) and the push rod (44) are slidably connected to a sliding sleeve (46). The push rod (44) is fitted with a first spring (47) on its side wall. The first spring (47) is located between the push rod (44) and the sliding sleeve (46). The side wall of the sliding sleeve (46) has a limiting groove (48). The side wall of the push rod (44) is connected to a limiting pin (49) that is slidably connected to the limiting groove (48). The side wall of the sliding sleeve (46) has a positioning pin hole (50). A locking pin (51) is slidably fitted on the positioning pin hole (50). The right end of the sliding sleeve (46) is connected to a protective cap (52). The center of the protective cap (52) has a second blind hole (53). The diameter of the second blind hole (53) is larger than the diameter of the deep hole drill bit.

2. The NdFeB automatic feeding and punching machine according to claim 1, characterized in that, The left end face of the end cap (12) is connected to a material connecting pipe (13). The inner wall of the material connecting pipe (13) is equipped with symmetrically arranged arc-shaped first guide sleeves (14), and the gap between the two first guide sleeves (14) is located in the vertical direction. The inner wall of the material guiding hollow pipe (8) has a guide groove (15) that is adapted to the first guide sleeve (14). The port of the material connecting pipe (13) is connected to a material tee pipe (27). The horizontal section of the material tee pipe (27) is equipped with a V-shaped guide plate (28), and the right end of the guide plate (28) abuts against the first guide sleeve (14).

3. The NdFeB automatic feeding and punching machine according to claim 1, characterized in that, The left side wall of the elastic clamp tube (23) has a first through groove (24) arranged at intervals, and the right side wall of the elastic clamp tube (23) has a second through groove (25) arranged at intervals.

4. The NdFeB automatic feeding and punching machine according to claim 1, characterized in that, The left end of the elastic clamp tube (23) is connected to a symmetrically arranged arc-shaped second guide sleeve (26), and the gap between the two second guide sleeves (26) is in the vertical direction; the inner wall of the guide hollow tube (8) has a guide groove (15) that is adapted to the second guide sleeve (26).

5. The NdFeB automatic feeding and punching machine according to claim 1, characterized in that, A spring mounting seat (54) is installed inside the second blind hole (53). A second spring (55) is connected to the spring mounting seat (54). An anti-splitting sleeve (56) is connected to the free end of the second spring (55). The anti-splitting sleeve (56) protrudes outside the second blind hole (53).

6. The NdFeB automatic feeding and punching machine according to claim 5, characterized in that, A linear bearing (57) is installed in the second blind hole (53). The inner hole of the linear bearing (57) is used to install the anti-splitting sleeve (56) and the spring mounting seat (54).

7. The NdFeB automatic feeding and punching machine according to claim 6, characterized in that, The cross-sectional shape of the spring mounting base (54) is T-shaped. The small diameter section of the spring mounting base (54) extends into the anti-collapse sleeve (56), and a sealing gasket (58) is connected to the fit gap between the spring mounting base (54) and the anti-collapse sleeve (56). A dust removal through hole (59) is opened in the center of the spring mounting base (54). The dust removal through hole (59) passes through the protective top cap (52), the push rod (44), and the extended push rod (36). The dust removal through hole (59) on the push rod (44) and the dust removal through hole (59) on the spring mounting base (54) are connected to a connecting hose (66).

8. The NdFeB automatic feeding and punching machine according to claim 7, characterized in that, A third spring (60) is connected to the locking pin (51) located in the sliding sleeve (46). The third spring (60) causes the locking pin (51) to retract into the positioning pin hole (50). A second annular groove (61) is provided on the side wall of the sliding sleeve (46). A positioning groove (62) is provided on the top surface of the locking pin (51). A fourth spring (63) is installed in the positioning groove (62). A sector-shaped sealing plate (64) is connected to the free end of the fourth spring (63). A sealing connecting plate (65) is slidably connected to the gap between adjacent sector-shaped sealing plates (64).

Images