Stepping motor stator inner hole burr removing equipment

Abstract

The invention relates to the technical field of stator manufacturing equipment, and particularly discloses stepping motor stator inner hole burr removing equipment which comprises a base plate, a supporting column is fixedly connected to the upper surface of the edge of the base plate, a mounting plate is fixedly connected to the top of the supporting column, and the mounting plate and the base plate are arranged on the same central axis. And a stator body is fixedly inserted into the upper surface of the mounting disc. Through plug-in installation, the inner hole of the stator presents a complete surface after the stator body and the filling column are plugged, so that the safety and stability of polishing and deburring are greatly improved, and the problem that the production efficiency is reduced due to the fact that manual polishing is needed due to the incompleteness of the inner hole of the stator at present is avoided. And meanwhile, the polishing pipe is indirectly protected, the problem that the service life is shortened due to the fact that the polishing pipe conducts polishing in an uneven inner hole for a long time is solved, the polishing pipe can be very easily taken out by inserting the inserting pipe and the driving pipe, and the later maintenance difficulty is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of stator manufacturing equipment, in particular to a device for removing burrs from the inner hole of a stepping motor stator. Background Art

[0002] In the motor manufacturing process, the removal of burrs from the inner hole of the stepper motor stator is a key process. The relevant equipment is designed to remove the burrs generated by the inner hole of the stator after processing (such as drilling, milling, etc.) through mechanical grinding, chemical corrosion or other process means. If these burrs are not removed, they will affect the performance of the motor, such as causing uneven magnetic field distribution, increasing motor operating noise and vibration, and reducing motor efficiency and reliability. Therefore, this equipment is crucial to ensure the quality of the motor.

[0003] Traditional stepper motor stator inner hole burr removal equipment has many shortcomings. In terms of processing accuracy and stability, due to the complex structure of the stator inner hole and partial incompleteness, it is often difficult for the grinding tool to evenly contact the inner hole surface, which not only leads to poor grinding effect and residual burrs, but also damages the grinding parts due to uneven force. Frequent tool replacement increases costs and reduces production efficiency. In addition, the degree of automation of the equipment is limited, and it mostly relies on manual operation for stator installation, tool adjustment and process monitoring. Manual operation has large errors and high labor intensity, making it difficult to ensure product consistency and quality stability. In addition, the debris cleaning mechanism is imperfect, and the burrs and debris generated by grinding are easy to accumulate in the stator inner hole, further scratching the inner hole surface and affecting the motor performance. There is a lack of effective means to prevent debris from accumulating inside the equipment, which increases the difficulty and frequency of equipment maintenance. It cannot meet the high-efficiency, high-precision and high-quality production requirements of modern motor manufacturing, and it is in urgent need of improvement. Summary of the invention

[0004] 1. Technical issues to be resolved The present invention provides a device for removing burrs from the inner hole of a stepping motor stator, which solves the problems mentioned in the above background technology.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a stepping motor stator inner hole burr removal device, including a chassis, the upper surface of the edge of the chassis is fixedly connected to a support column, the support column is arranged at a fixed interval around the central axis of the chassis, the top of the support column is fixedly connected to a mounting plate, the mounting plate and the chassis are arranged in the same size, and the mounting plate and the chassis are arranged on the same central axis, the upper surface of the mounting plate is fixedly plugged with a stator body, and also includes: A grinding mechanism, wherein the grinding mechanism is fixedly mounted in the middle of the mounting plate, and the grinding mechanism performs rotational motion along the central axis of the mounting plate; A reinforcing mechanism, wherein the reinforcing mechanism is fixedly mounted inside the grinding mechanism and the reinforcing mechanism and the grinding mechanism move in coordination with each other; The grinding mechanism includes a filling column, which is fixedly connected to the middle upper surface of the mounting disk. A plurality of filling columns are arranged at fixed intervals around the central axis of the mounting disk, wherein the number of filling columns corresponds to the number of slots for mounting coils on the stator body, wherein the inner surface of the filling column forms a complete surface with the inner hole of the stator body, and a center disk is arranged on the inner side of the filling column, wherein the center disk is fixedly embedded in the middle upper surface of the mounting disk, wherein the center disk and the mounting disk are arranged on the same central axis, and the upper surface of the center disk is rotatably connected to a driving tube.

[0006] Preferably, the outer surface of the driving tube is fixedly connected with a plug strip, the outer side of the driving tube is sleeved with a plug tube, the plug tube and the driving tube are fixedly plugged together through the plug strip, the outer surface of the plug tube is fixedly connected with a telescopic plate, three telescopic plates are arranged at fixed intervals around the central axis of the plug tube, the output end of the telescopic plate is fixedly connected with an adjustment plate No. 1, both ends of the adjustment plate No. 1 are slidably plugged with an adjustment plate No. 2, wherein the adjustment plate No. 1 and the adjustment plate No. 2 are combined into a tubular shape, and the outer surface of the adjustment plate No. 1 is fixedly connected with a polishing tube.

[0007] Preferably, the inner surface of the driving tube is connected to a driving rod via a thread, the bottom of the driving rod passes through the central disk, the top of the driving rod is fixedly connected to a top disk, and the top disk is arranged on the same central axis as the mounting disk and the bottom disk.

[0008] Preferably, the reinforcing mechanism includes a closing disk, the bottom surface of the closing disk is abutted and snapped on the upper surface of the stator body, a sliding rod is fixedly connected to the upper surface of the edge of the closing disk, three sliding rods are arranged at fixed intervals around the central axis of the closing disk, the top plate is slidably connected to the sliding rod, and the closing disk and the top plate are elastically connected by a spring.

[0009] Preferably, a bellows is fixedly connected to the middle upper surface of the closing disk, and the top of the bellows is fixedly connected to the bottom surface of the top disk. An input slot is penetrated through the upper surface of the closing disk, wherein three input slots are arranged at fixed intervals around the central axis of the closing disk, and the input slots are directly opposite to the inner hole gap of the stator body. An output slot is penetrated through the middle upper surface of the mounting disk.

[0010] Preferably, an extrusion groove is provided on the upper surface of the mounting plate, wherein the extrusion groove is arranged in a ring shape, and a plug-in rod is fixedly connected to the inner surface of the extrusion groove, and a plurality of the plug-in rods are arranged at fixed intervals around the central axis of the mounting plate, wherein the number of the plug-in rods corresponds to the number of reserved holes on the stator body.

[0011] Preferably, an extrusion bag is fixedly connected to the inner surface of the extrusion groove, and the extrusion bag is arranged between two adjacent plug-in rods. A pressure plate is fixedly connected to the top of the extrusion bag, and the pressure plate is arranged in a ring shape. The pressure plate passes through the plug-in rod and is elastically slidably connected. The internal cavity of the extrusion bag is connected to the internal cavity of the telescopic plate.

[0012] Preferably, a filling groove is provided inside the filling column, wherein three filling grooves are provided at fixed intervals around the central axis of the mounting disk, the inner surface of the filling groove is symmetrically fixedly connected to a limiting plate, an extrusion plate is slidably connected through the limiting plate, a convex cone is fixedly connected to the outer surface of the extrusion plate, the cross-section of the convex cone is triangular, the outer end of the convex cone protrudes from the filling column, the inner surface of the extrusion plate is symmetrically fixedly connected to a support plate, the support plate is arranged in an arc shape, wherein the support plate is arranged as an elastic plate.

[0013] Preferably, the sides of the support plates that are away from each other are fixedly connected with an expansion bag, and the expansion bag is connected to the internal cavity of the extrusion bag. The inner surface of the grinding tube is symmetrically fixedly connected with a limit strip, and the inner surface of the outer end of the limit strip is fixedly connected with a deformation plate, and the outer surface of the deformation plate is fixedly fitted and connected to the inner surface of the grinding tube. When it is necessary to deburr the inner hole of the stator body, the stator body can be clamped on the upper surface of the mounting plate through the filling column. When the stator body and the mounting plate are completely clamped, the driving rod can be moved down and connected with the driving tube through the hydraulic system. At this time, the closing disk is fitted with the upper surface of the stator. With the continuous reciprocating operation of the hydraulic system, the driving rod begins to move up and down along the driving tube, thereby driving the driving tube to reciprocate on the center disk, and then driving the grinding tube to start rotating through the plug-in tube, so that the grinding tube and the inner hole surface of the stator body produce friction, thereby achieving the deburring effect on the inner hole of the stator body.

[0014] (III) Beneficial effects The present invention provides a stepping motor stator inner hole burr removal device, which has the following beneficial effects: (I) This stepper motor stator inner hole burr removal equipment, through plug-in installation, makes the stator inner hole present a complete surface after the stator body and the filling column are plugged in, thereby greatly improving the safety and stability of grinding and deburring, avoiding the current problem of manual grinding due to the incompleteness of the stator inner hole, thereby reducing production efficiency. At the same time, it also indirectly protects the grinding tube, avoiding the problem of the grinding tube being polished on the uneven inner hole for a long time to reduce the service life, and the grinding tube can be easily removed by plugging the plug-in tube and the drive tube, greatly reducing the difficulty of later maintenance.

[0015] (II) In the stepper motor stator inner hole burr removal device, the stator body will come into contact with the upper surface of the pressure plate in advance when plugging with the filling column, and push the pressure plate downward, prompting the pressure plate to start moving downward along the plug-in rod and squeeze the extrusion bag, prompting the extrusion bag to transmit its internal air pressure to the telescopic plate, thereby pushing the No. 1 adjustment plate and the No. 2 adjustment plate to start expanding through the expansion of the telescopic plate, thereby greatly enhancing the extrusion force between the grinding tube and the inner hole of the stator body, thereby greatly improving the effect and efficiency of grinding and deburring, and at the same time making the stator When the body is just beginning to be plugged into the filling column, the grinding tube is in a contracted state, which is more conducive to the completion of the plugging of the stator body and avoids the problem that the expanded No. 1 adjustment plate and No. 2 adjustment plate affect the plugging of the stator body. When the grinding tube rotates along the inner hole of the stator body to grind and remove burrs, it will intermittently contact and squeeze the convex cone, thereby generating a scraping force on the outer surface of the grinding tube through the convex cone, helping to clean the outer surface of the grinding tube during work and avoiding the problem that debris and burrs adhere to the outer surface of the grinding tube for a long time and cause the inner hole of the stator body to be scratched.

[0016] (III) This stepper motor stator inner hole burr removal device uses the elastic support of the support plate to enable the convex cone to move into the filling column when subjected to a large extrusion pressure, and the extrusion bag will also transmit its internal air pressure to the expansion bag after being squeezed, thereby greatly limiting the bending deformation capacity of the support plate, thereby requiring a greater extrusion force for the convex cone to move into the filling column, ensuring the cleaning effect of the grinding tube, and the extrusion bag is arranged to be in a connected state with the telescopic plate and the expansion bag, thereby achieving a relatively stable balance between the convex cone and the grinding tube during grinding and deburring. The top plate will intermittently squeeze and stretch the bellows when driven up and down by the hydraulic system, thereby utilizing the change in the internal air pressure of the bellows to generate a blowing force on the inner hole of the stator through the input slot during the grinding process, thereby cooperating with the convex cone to automatically export burrs and debris during the grinding process, thereby avoiding the problem of burrs and debris staying in the inner hole of the stator for a long time and causing the stator to be scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the bellows of the present invention; Figure 3 It is a schematic structural diagram of a packed column of the present invention; Figure 4 It is a structural schematic diagram of the installation disk of the present invention; Figure 5 It is a schematic diagram of the structure of the extrusion bag of the present invention; Figure 6It is a structural schematic diagram of the center disk of the present invention; Figure 7 It is a schematic diagram of the structure of the driving tube of the present invention; Figure 8 It is a schematic structural diagram of the convex cone of the present invention.

[0018] In the figure: 1. chassis; 2. support column; 3. mounting plate; 4. stator body; 5. grinding mechanism; 51. filling column; 52. center plate; 53. drive tube; 54. plug-in strip; 55. plug-in tube; 56. telescopic plate; 57. No. 1 adjustment plate; 58. No. 2 adjustment plate; 59. grinding tube; 510. drive rod; 511. top plate; 6. reinforcement mechanism; 61. closing plate; 62. sliding rod; 63. bellows; 64. input slot; 65. output slot; 66. extrusion slot; 67. plug-in rod; 68. extrusion bag; 69. pressure plate; 610. filling slot; 611. limit plate; 612. extrusion plate; 613. convex cone; 614. support plate; 615. expansion bag; 616. limit strip; 617. deformation plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a stepping motor stator inner hole burr removal device, comprising a chassis 1, a support column 2 is fixedly connected to the upper surface of the edge of the chassis 1, four support columns 2 are arranged at fixed intervals around the central axis of the chassis 1, a mounting plate 3 is fixedly connected to the top of the support column 2, the mounting plate 3 is set to be the same size as the chassis 1, and the mounting plate 3 and the chassis 1 are set to have the same central axis, the upper surface of the mounting plate 3 is fixedly plugged with a stator body 4, and also includes: A grinding mechanism 5, which is fixedly mounted in the middle of the mounting plate 3, and rotates along the central axis of the mounting plate 3; A reinforcing mechanism 6, which is fixedly mounted inside the grinding mechanism 5, and the reinforcing mechanism 6 and the grinding mechanism 5 work in coordination with each other; The grinding mechanism 5 includes a filling column 51, which is fixedly connected to the middle upper surface of the mounting disk 3. A plurality of filling columns 51 are arranged at fixed intervals around the central axis of the mounting disk 3, wherein the number of the filling columns 51 corresponds to the number of slots for mounting the coils on the stator body 4, wherein the inner surface of the filling column 51 forms a complete surface with the inner hole of the stator body 4, and a center disk 52 is arranged on the inner side of the filling column 51, and the center disk 52 is fixedly embedded in the middle upper surface of the mounting disk 3, wherein the center disk 52 and the mounting disk 3 are arranged on the same central axis, and the upper surface of the center disk 52 is rotatably connected with a driving tube 53.

[0021] The outer surface of the driving tube 53 is fixedly connected with a plug strip 54, and the outer side of the driving tube 53 is sleeved with a plug tube 55, and the plug tube 55 is fixedly plugged with the driving tube 53 through the plug strip 54, and the outer surface of the plug tube 55 is fixedly connected with a telescopic plate 56, and three telescopic plates 56 are arranged at fixed intervals around the central axis of the plug tube 55, and the output end of the telescopic plate 56 is fixedly connected with a No. 1 adjustment plate 57, and the two ends of the No. 1 adjustment plate 57 are slidably plugged with a No. 2 adjustment plate 58, wherein the No. 1 adjustment plate 57 and the No. 2 adjustment plate 58 are combined into a tubular shape, and the outer surface of the No. 1 adjustment plate 57 is fixedly connected with a polishing tube 59.

[0022] The inner surface of the driving tube 53 is connected to a driving rod 510 via a thread. The bottom of the driving rod 510 passes through the center disk 52. The top of the driving rod 510 is fixedly connected to a top disk 511. The top disk 511 is arranged on the same central axis as the mounting disk 3 and the bottom disk 1.

[0023] Second embodiment: Figures 1 to 8 As shown, the reinforcing mechanism 6 includes a closing disk 61, the bottom surface of the closing disk 61 is abutted and snapped on the upper surface of the stator body 4, and a sliding rod 62 is fixedly connected to the upper surface of the edge of the closing disk 61. Three sliding rods 62 are arranged at fixed intervals around the central axis of the closing disk 61, and the top disk 511 is slidably connected to the sliding rod 62, and the closing disk 61 and the top disk 511 are elastically connected by a spring.

[0024] A bellows 63 is fixedly connected to the middle upper surface of the closing disk 61, and the top of the bellows 63 is fixedly connected to the bottom surface of the top disk 511. An input slot 64 is penetrated through the upper surface of the closing disk 61, wherein three input slots 64 are arranged at fixed intervals around the central axis of the closing disk 61, and the input slots 64 are directly opposite to the inner hole gap of the stator body 4. An output slot 65 is penetrated through the middle upper surface of the mounting disk 3.

[0025] An extrusion groove 66 is provided on the upper surface of the mounting plate 3, wherein the extrusion groove 66 is arranged in a ring shape, and a plug-in rod 67 is fixedly connected to the inner surface of the extrusion groove 66. A plurality of plug-in rods 67 are arranged at fixed intervals around the central axis of the mounting plate 3, wherein the number of the plug-in rods 67 corresponds to the number of reserved holes on the stator body 4.

[0026] An extrusion bag 68 is fixedly connected to the inner surface of the extrusion groove 66, and the extrusion bag 68 is arranged between two adjacent plug-in rods 67. A pressure plate 69 is fixedly connected to the top of the extrusion bag 68. The pressure plate 69 is arranged in a ring shape. The pressure plate 69 passes through the elastic sliding connection on the plug-in rod 67, and the internal cavity of the extrusion bag 68 is connected to the internal cavity of the telescopic plate 56.

[0027] A filling groove 610 is provided inside the filling column 51, wherein three filling grooves 610 are provided at fixed intervals around the central axis of the mounting disk 3, the inner surface of the filling groove 610 is symmetrically fixedly connected to a limiting plate 611, an extrusion plate 612 is slidably connected through the limiting plate 611, the outer surface of the extrusion plate 612 is fixedly connected to a convex cone 613, the cross-section of the convex cone 613 is triangular, the outer end of the convex cone 613 protrudes out of the filling column 51, the inner surface of the extrusion plate 612 is symmetrically fixedly connected to a support plate 614, the support plate 614 is arranged in an arc shape, wherein the support plate 614 is arranged as an elastic plate.

[0028] An expansion bag 615 is fixedly connected to one side of the support plate 614 that is away from each other. The expansion bag 615 is connected to the internal cavity of the extrusion bag 68. The inner surface of the polishing tube 59 is symmetrically fixedly connected to a limit strip 616. The inner surface of the outer end of the limit strip 616 is fixedly connected to a deformation plate 617. The outer surface of the deformation plate 617 is fixedly fitted to the inner surface of the polishing tube 59.

[0029] During operation, when it is necessary to deburr the inner hole of the stator body 4, the stator body 4 can be clamped on the upper surface of the mounting disk 3 through the filling column 51. After the stator body 4 and the mounting disk 3 are clamped, the driving rod 510 can be moved down and connected with the driving tube 53 through the hydraulic system. At this time, the closing disk 61 is in contact with the upper surface of the stator. With the continuous reciprocating operation of the hydraulic system, the driving rod 510 starts to move up and down along the driving tube 53, thereby driving the driving tube 53 to reciprocate on the center disk 52, and then drives the grinding tube 59 to start rotating through the plug-in tube 55, so that the grinding tube 59 and the inner hole surface of the stator body 4 generate friction, thereby achieving the deburring effect on the inner hole of the stator body 4. The plug-in installation makes After the stator body 4 and the filling column 51 are connected, the inner hole of the stator presents a complete surface, thereby greatly improving the safety and stability of grinding and deburring, avoiding the problem of manual grinding caused by the incompleteness of the inner hole of the stator, thereby reducing production efficiency, and indirectly protecting the grinding tube 59, avoiding the problem of the grinding tube 59 being polished on the uneven inner hole for a long time to reduce the service life, and the grinding tube 59 can be easily removed by connecting the plug-in tube 55 and the driving tube 53, greatly reducing the difficulty of later maintenance, and the stator body 4 will come into contact with the upper surface of the pressure plate 69 in advance when being connected with the filling column 51, and push the pressure plate 69 to move downward, prompting the pressure plate 69 to start moving downward along the plug-in rod 67 and The extrusion bag 68 is squeezed to cause the extrusion bag 68 to transmit its internal air pressure to the telescopic plate 56, so that the expansion of the telescopic plate 56 pushes the No. 1 adjustment plate 57 and the No. 2 adjustment plate 58 to start expanding, thereby greatly enhancing the extrusion force between the grinding tube 59 and the inner hole of the stator body 4, thereby greatly improving the effect and efficiency of grinding and deburring. At the same time, the grinding tube 59 is in a contracted state when the stator body 4 is just plugged into the filling column 51, which is more conducive to completing the plugging of the stator body 4 and avoiding the problem that the expanded No. 1 adjustment plate 57 and the No. 2 adjustment plate 58 affect the plugging of the stator body 4. When the grinding tube 59 rotates along the inner hole of the stator body 4 for grinding and deburring, it will intermittently contact and squeeze the convex cone 613, thereby passing through the convex cone 61 3 generates a scraping force on the outer surface of the grinding tube 59, which helps to clean the outer surface of the grinding tube 59 during work, and avoids the problem that debris and burrs adhere to the outer surface of the grinding tube 59 for a long time and cause the inner hole of the stator body 4 to be scratched. In addition, the elastic support of the support plate 614 allows the convex cone 613 to move into the filling column 51 when subjected to a large extrusion force, and the extrusion bag 68 will also transmit its internal air pressure to the expansion bag 615 after being squeezed, thereby greatly limiting the bending deformation ability of the support plate 614, so that the convex cone 613 moves into the filling column 51. The extrusion force required is greater, ensuring the cleaning effect of the grinding tube 59, and the extrusion bag 68 is arranged to be connected with the interior of the telescopic plate 56 and the expansion bag 615.Thus, when grinding and removing burrs, the convex cone 613 and the grinding tube 59 always maintain a relatively stable balanced extrusion state, and the corresponding extrusion force will be automatically adjusted according to the air pressure, thereby greatly improving the working stability of the device and also improving the working safety of the device. When the top plate 511 is driven up and down by the hydraulic system, it will intermittently squeeze and stretch the bellows 63, thereby generating a blowing force on the stator inner hole through the input groove 64 by utilizing the change of the internal air pressure of the bellows 63 during the grinding process, thereby automatically exporting burrs and debris during the grinding process in cooperation with the convex cone 613, and avoiding the problem of burrs and debris staying in the stator inner hole for a long time and causing the stator to be scratched.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stepper motor stator inner hole burr removal device, comprising a chassis (1), characterized in that: The upper surface of the edge of the chassis (1) is fixedly connected to a support column (2), four support columns (2) are arranged at fixed intervals around the central axis of the chassis (1), the top of the support column (2) is fixedly connected to a mounting plate (3), the mounting plate (3) and the chassis (1) are arranged in the same size, and the mounting plate (3) and the chassis (1) are arranged on the same central axis, the upper surface of the mounting plate (3) is fixedly plugged with a stator body (4), and further comprises: A grinding mechanism (5), wherein the grinding mechanism (5) is fixedly mounted in the middle of the mounting plate (3), and the grinding mechanism (5) performs rotational motion along the central axis of the mounting plate (3); A reinforcing mechanism (6), wherein the reinforcing mechanism (6) is fixedly mounted inside the grinding mechanism (5), and the reinforcing mechanism (6) and the grinding mechanism (5) move and work in coordination; The grinding mechanism (5) comprises a filling column (51), the filling column (51) being fixedly connected to the middle upper surface of the mounting plate (3), a plurality of the filling columns (51) being arranged at fixed intervals around the central axis of the mounting plate (3), wherein the number of the filling columns (51) corresponds to the number of slots on the stator body (4) for mounting the coils, wherein the inner surface of the filling column (51) forms a complete surface with the inner hole of the stator body (4), a center plate (52) being arranged on the inner side of the filling column (51), the center plate (52) being fixedly embedded in the middle upper surface of the mounting plate (3), wherein the center plate (52) and the mounting plate (3) are arranged on the same central axis, and the upper surface of the center plate (52) is rotatably connected to a driving tube (53).

2. The stepper motor stator inner hole burr removal device according to claim 1 is characterized in that: The outer surface of the driving tube (53) is fixedly connected with a plug-in strip (54), the outer side of the driving tube (53) is sleeved with a plug-in tube (55), the plug-in tube (55) and the driving tube (53) are fixedly plugged via the plug-in strip (54), the outer surface of the plug-in tube (55) is fixedly connected with a telescopic plate (56), three telescopic plates (56) are arranged at fixed intervals around the central axis of the plug-in tube (55), the output end of the telescopic plate (56) is fixedly connected with a first adjustment plate (57), the two ends of the first adjustment plate (57) are slidably plugged with a second adjustment plate (58), wherein the first adjustment plate (57) and the second adjustment plate (58) are combined into a tubular shape, and the outer surface of the first adjustment plate (57) is fixedly connected with a polishing tube (59).

3. The stepping motor stator inner hole burr removal device according to claim 2 is characterized in that: The inner surface of the driving tube (53) is connected to a driving rod (510) via a threaded connection. The bottom of the driving rod (510) passes through the central disk (52). The top of the driving rod (510) is fixedly connected to a top disk (511). The top disk (511) is arranged on the same central axis as the mounting disk (3) and the bottom disk (1).

4. The stepping motor stator inner hole burr removal device according to claim 3 is characterized in that: The reinforcing mechanism (6) comprises a closing disk (61), the bottom surface of the closing disk (61) being abutted and buckled on the upper surface of the stator body (4), a sliding rod (62) being fixedly connected to the upper surface of the edge of the closing disk (61), three sliding rods (62) being arranged at fixed intervals around the central axis of the closing disk (61), the top disk (511) penetrating and slidably connected to the sliding rod (62), and the closing disk (61) and the top disk (511) being elastically connected via a spring.

5. The stepping motor stator inner hole burr removal device according to claim 4, characterized in that: A bellows (63) is fixedly connected to the middle upper surface of the closing disk (61), and the top of the bellows (63) is fixedly connected to the bottom surface of the top disk (511). An input slot (64) is provided through the upper surface of the closing disk (61), wherein three input slots (64) are arranged at fixed intervals around the central axis of the closing disk (61), and the input slots (64) are directly opposite to the inner hole gap of the stator body (4). An output slot (65) is provided through the middle upper surface of the mounting disk (3).

6. The stepping motor stator inner hole burr removal device according to claim 5, characterized in that: An extrusion groove (66) is provided on the upper surface of the mounting plate (3), wherein the extrusion groove (66) is arranged in an annular shape, and a plug-in rod (67) is fixedly connected to the inner surface of the extrusion groove (66), and a plurality of the plug-in rods (67) are arranged at fixed intervals around the central axis of the mounting plate (3), wherein the number of the plug-in rods (67) corresponds to the number of reserved holes on the stator body (4).

7. The stepping motor stator inner hole burr removal device according to claim 6, characterized in that: An extrusion bag (68) is fixedly connected to the inner surface of the extrusion groove (66), and the extrusion bag (68) is arranged between two adjacent plug rods (67). A pressure plate (69) is fixedly connected to the top of the extrusion bag (68), and the pressure plate (69) is arranged in a ring shape. The pressure plate (69) penetrates and is elastically slidably connected to the plug rod (67), and the internal cavity of the extrusion bag (68) is connected to the internal cavity of the telescopic plate (56).

8. The stepper motor stator inner hole burr removal device according to claim 7, characterized in that: A filling groove (610) is provided inside the filling column (51), wherein three filling grooves (610) are provided around the central axis of the mounting plate (3) at fixed intervals, the inner surface of the filling groove (610) is symmetrically fixedly connected to a limit plate (611), a pressing plate (612) is slidably connected through the limit plate (611), the outer surface of the pressing plate (612) is fixedly connected to a convex cone (613), the cross section of the convex cone (613) is triangular, the outer end of the convex cone (613) protrudes from the filling column (51), the inner surface of the pressing plate (612) is symmetrically fixedly connected to a support plate (614), the support plate (614) is arranged in an arc shape, wherein the support plate (614) is arranged in an elastic plate.

9. The stepping motor stator inner hole burr removal device according to claim 8, characterized in that: An expansion bag (615) is fixedly connected to one side of the support plate (614) that is away from each other. The expansion bag (615) is communicated with the internal cavity of the extrusion bag (68). The inner surface of the polishing tube (59) is symmetrically fixedly connected to a limit strip (616). The inner surface of the outer end of the limit strip (616) is fixedly connected to a deformation plate (617). The outer surface of the deformation plate (617) is fixedly fitted to the inner surface of the polishing tube (59).

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