A motor cotter press-in device

Abstract

The application discloses a motor expanding nail pressing device, and relates to the technical field of motor assembling equipment, which comprises a clamping mechanism, a rotatable clamping disc and an elastic element, a plurality of through holes extending along the clamping disc in the axial direction are distributed in the circumferential direction on the clamping disc, and the elastic element interferes with each through hole in the radial direction; a feeding mechanism, a first driving element and a feeding plate driven by the first driving element, a nail groove is arranged on the feeding plate, and the nail groove reciprocates between a material taking position and a material discharging position; a feeding mechanism, a rotatable rotating shaft and an elastic clamping block arranged at the end of the rotating shaft, a clamping hole is arranged on the elastic clamping block; the elastic clamping block has a first station and a second station; when the elastic clamping block is in the first station, the clamping hole is coaxially aligned with the nail groove; when the elastic clamping block is in the second station, the clamping hole is coaxially aligned with one through hole; and a driving mechanism is used for pushing the expanding nail in the nail groove into the clamping hole and pushing the expanding nail in the clamping hole into the through hole. The application realizes the synchronous pressing of a plurality of expanding nails, and improves the automation level and production efficiency of motor assembly.

Description

A motor expansion pin pressing device Technical Field

[0001] This application relates to the field of motor assembly equipment technology, and in particular to a motor expansion pin pressing device. Background Technology

[0002] During motor assembly, a secure connection between the magnetic yoke and the stator support is crucial for ensuring motor performance and reliability. As the core component of the motor stator core, the magnetic yoke's tight fit with the stator support directly affects the motor's mechanical strength, electromagnetic performance, and operational stability. Therefore, fasteners such as expansion bolts must be used during assembly to enhance the connection strength and prevent loosening due to vibration or temperature rise, thereby ensuring the long-term reliability of the motor.

[0003] Traditional expansion bolt assembly methods typically rely on a vibratory feeder to arrange the bolts in an orderly manner, followed by a pressing mechanism that presses each bolt into the stator unit one by one. However, this method is significantly inefficient: the pressing mechanism needs to perform an independent pressing action for each bolt, meaning the number of pressing operations strictly corresponds to the number of bolts. This results in a time-consuming assembly process, making it difficult to meet the demands of modern motor manufacturing for efficient and automated assembly, especially in mass production where the efficiency bottleneck becomes even more pronounced.

[0004] Therefore, given the aforementioned background technology, how to overcome the efficiency limitations of the existing single-piece pressing mode is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a motor expansion pin pressing device that enables the synchronous pressing of multiple expansion pins, breaks through the efficiency limitations of the existing single-pin pressing mode, and improves the automation level and production efficiency of motor assembly.

[0006] To achieve the above objectives, this application provides a motor expansion pin pressing device, comprising:

[0007] The clamping mechanism includes a rotatable clamping disk and an elastic element disposed on the outer periphery of the clamping disk. The clamping disk has a plurality of through holes distributed circumferentially and extending axially along the clamping disk. The elastic element interferes radially with each of the through holes.

[0008] The feeding mechanism includes a first driving component and a feeding plate driven by it. The feeding plate is provided with a nail groove, which reciprocates between the material picking position and the material discharging position.

[0009] The loading mechanism includes a reciprocating rotating shaft and an elastic clamping block disposed at one end of the rotating shaft. The elastic clamping block is provided with a clamping hole. The elastic clamping block has a first working position and a second working position: in the first working position, the clamping hole is coaxially aligned with the nail groove; in the second working position, the clamping hole is coaxially aligned with a through hole.

[0010] A driving mechanism is used to push the expansion pin in the pin groove into the clamping hole when the elastic clamping block is in the first working position, and to push the expansion pin in the clamping hole into the corresponding through hole when the elastic clamping block is switched to the second working position.

[0011] Optionally, the loading mechanism includes a second driving member and a transmission part, wherein the transmission part is tractively connected to the second driving member and the rotating shaft to drive the rotating shaft to reciprocate.

[0012] During one reciprocating rotation cycle of the rotating shaft, the nail groove reciprocates between the material picking position and the material discharging position for one cycle;

[0013] During one reciprocating rotation cycle of the rotating shaft, the rotation angle of the clamping plate is equal to the central angle formed by the line connecting the center points of two adjacent through holes and the rotation center of the clamping plate.

[0014] Optionally, the transmission unit includes a rack fixedly mounted on the bracket and a gear located at the other end of the rotating shaft, the gear meshing with the rack;

[0015] The second driving member is fixedly mounted on the bracket. The actuating end of the second driving member is connected to a movable plate. The rotating shaft is rotatably mounted on the movable plate. The movable plate reciprocates under the action of the second driving member to drive the rotating shaft to reciprocate.

[0016] Optionally, the circumferential outer wall of the clamping plate is provided with an inner groove, and the elastic element is placed in the inner groove; the inner groove is connected to the through hole through an interference hole, and part of the elastic element interferes with the expansion pin in the through hole through the interference hole.

[0017] Optionally, the elastic element is a spring or an elastic band, and / or the elastic clamp is a rubber block.

[0018] Optionally, the feeding mechanism includes a feeding box disposed on the upper side of the feeding plate, the bottom of the feeding box having a square outlet corresponding to the nail groove.

[0019] Optionally, the driving mechanism includes a third driving member and a fourth driving member. The third driving member is fixedly mounted on the moving plate and has a third actuating end that extends or retracts along the axial direction of the clamping plate. The third actuating end can extend into the clamping hole.

[0020] The fourth driving member is fixedly mounted on the bracket. The fourth driving member has a fourth actuating end that extends or retracts along the length direction of the nail groove and can extend into the nail groove.

[0021] Optionally, it also includes a clamping platform, wherein the clamping mechanism, the feeding mechanism, the loading mechanism and the driving mechanism are all disposed on the clamping platform, the clamping platform has an mounting position for assembling the stator unit, and the clamping platform is provided with a pressing mechanism corresponding to the stator unit;

[0022] The pressing mechanism includes a fifth driving member and a pressure plate located at the actuating end of the fifth driving member. The pressure plate is used to press the expansion pins on the clamping plate into the expansion pin holes of the stator unit.

[0023] Optionally, the clamping mechanism includes a tray disposed on the clamping platform, the clamping plate being detachably disposed on the tray, and the tray rotating under the drive of a motor and a gearbox to change the position of the through hole.

[0024] Optionally, the stator unit has a coil frame adapted to the outer ring of the clamping plate, and the distribution of the through holes matches the distribution of the expansion pin holes of the stator unit.

[0025] The beneficial effects of this application are that, through the reciprocating motion of the nail slot of the feeding mechanism and the reciprocating rotating shaft and elastic clamp of the loading mechanism, the expansion nail is continuously and uninterruptedly transferred from the nail slot to the clamping hole and then to the through hole of the clamping plate. Under the radial pre-tightening force of the elastic element, the multiple through holes on the clamping plate pre-tighten multiple expansion nails, ensuring that the expansion nails will not fall off the clamping plate. When the magnetic yoke is assembled with the stator support, the pressing mechanism applies a pressing force, which overcomes the radial constraint of the elastic element, so that the expansion nail smoothly leaves the through hole and is embedded in the assembly slot of the stator support, realizing the synchronous pressing of multiple expansion nails and improving the motor assembly efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 is a schematic diagram of a motor expansion pin pressing device provided in an embodiment of this application;

[0028] Figure 2 is a schematic diagram of the cooperation structure of the clamping mechanism, feeding mechanism, loading mechanism and driving mechanism provided in the embodiment of this application;

[0029] Figure 3 is a schematic diagram of the structure from another perspective of Figure 2;

[0030] Figure 4 is a schematic diagram of the feeding mechanism provided in the embodiment of this application;

[0031] Figure 5 is a schematic diagram of the transmission structure provided in an embodiment of this application;

[0032] Figure 6 is an exploded view of the clamping mechanism provided in the embodiment of this application;

[0033] Figure 7 is a cross-sectional view of the clamping plate provided in an embodiment of this application;

[0034] Figure 8 is a schematic diagram of the assembly structure of the clamping plate and the elastic element provided in the embodiment of this application;

[0035] Figure 9 is an enlarged structural diagram of point A in Figure 8;

[0036] Figure 10 is a schematic diagram of the pressing mechanism provided in the embodiment of this application.

[0037] In the diagram: 1-Clamping platform; 2-Clamping mechanism; 3-Feeding mechanism; 4-Loading mechanism; 5-Drive mechanism; 6-Pressure fitting mechanism; 7-Stator unit; 8-Expansion pin;

[0038] 11-Staff;

[0039] 21-Clamping plate; 22-Elastic element; 23-Plate; 211-Through hole; 212-Inner groove; 213-Interference hole;

[0040] 31-First driving component; 32-Feed plate; 33-Feed box; 321-Nail groove;

[0041] 41-Rotating shaft; 42-Elastic clamping block; 43-Transmission unit; 44-Moving plate; 45-Second driving component; 46-Transition plate; 431-Rack; 432-Gear;

[0042] 51 - Third drive component; 52 - Fourth drive component;

[0043] 61-Fifth driving component; 62-Pressure plate. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does 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, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] As shown in Figures 1 to 10, in this embodiment, a motor expansion pin pressing device is provided. The device includes a clamping mechanism 2, a feeding mechanism 3, a loading mechanism 4, and a driving mechanism 5. The device constructs a complete, continuous, and closed-loop automated assembly process through the coordinated action of multiple mechanisms.

[0048] Specifically, the clamping mechanism 2 includes a rotatable clamping disk 21 and an elastic element 22 disposed on the outer periphery of the clamping disk 21. The clamping disk 21 has a plurality of through holes 211 extending axially along the clamping disk 21 in the circumferential direction. The through holes 211 are used to temporarily store the expansion pins 8. In some embodiments, the through holes 211 are arranged vertically.

[0049] When the elastic element 22 is arranged on the outer periphery of the clamping plate 21, the elastic element 22 can interfere with each through hole 211, thereby generating a radial clamping force on the expansion pin 8 in the through hole 211, so that each through hole 211 maintains a self-locking clamping state on the expansion pin 8 without the action of external force, ensuring that the expansion pin 8 can be stably placed in the through hole 211 and will not shake or fall off at will.

[0050] The feeding mechanism 3 is located on one side of the clamping mechanism 2. The feeding mechanism 3 includes a first driving member 31 and a feeding plate 32 driven by it. The feeding plate 32 is provided with a nail groove 321. In some embodiments, the feeding plate 32 is horizontally arranged, and the length direction of the nail groove 321 is horizontal. The feeding plate 32 is driven to move by the first driving member 31, so that the nail groove 321 can achieve periodic reciprocating motion, forming a continuous and reciprocating conveying of the nails 8.

[0051] The loading mechanism 4 includes a reciprocating rotating shaft 41 and an elastic clamping block 42 located at one end of the shaft 41. The elastic clamping block 42 has a clamping hole with a diameter slightly smaller than that of the expansion nail 8. The flexible material of the elastic clamping block 42 is used to clamp the expansion nail 8. Furthermore, the reciprocating rotating shaft 41 can drive the elastic clamping block 42 to periodically switch between the first station and the second station. When the elastic clamping block 42 is in the first station, its clamping hole is coaxially aligned with the nail groove 321 on the feed plate 32. At this time, the drive mechanism 5 applies force along the length of the nail groove through a rigid push rod, smoothly pushing the expansion nail 8 in the nail groove 321 into the clamping hole. The flexible material of the elastic clamping block 42 forms an inclusive clamping of the expansion nail 8, ensuring that it does not shift or get damaged during the transfer process.

[0052] As the rotating shaft 41 rotates periodically, the elastic clamping block 42 will switch from the first station to the second station. At this time, the clamping hole is coaxially aligned with a certain through hole 211 on the clamping plate 21. The drive mechanism 5 is activated to push the expansion pin 8 in the clamping hole into the through hole 211 along the axis, thus completing a complete clamping process of the expansion pin 8.

[0053] To achieve continuous clamping of multiple expansion nails 8, after the previous expansion nail 8 is clamped, the feed plate 32 moves to the take-up position, and the nail groove 321 carries the expansion nail 8 again. The nail groove 321 carrying the expansion nail 8 moves again to a predetermined position corresponding to the elastic clamping block 42. This predetermined position refers to the position where the nail groove 321 and the clamping hole are coaxially aligned when the elastic clamping block 42 is in the first station, i.e., the unloading position. During the movement of the feed plate 32, the elastic clamping block 42 switches from the second station to the first station, and at the same time, the clamping plate 21 rotates, driving the through hole 211 that is not clamped with an expansion nail 8 to rotate to a preset position. This preset position refers to the position where the elastic clamping block 42 is coaxially aligned with the clamping hole when it is in the second station. Repeating the above operation can realize the automatic assembly of the expansion nail 8 from nail take-up to clamping until each through hole 211 is clamped with an expansion nail 8.

[0054] In summary, the reciprocating motion of the nail groove 321 of the feeding mechanism 3, in coordination with the reciprocating rotating shaft 41 and elastic clamping block 42 of the loading mechanism 4, enables the continuous and uninterrupted transfer of the expansion nail 8 from the nail groove 321 to the clamping hole, and then to the through hole 211 of the clamping plate 21. Under the radial pre-tightening force of the elastic element 22, the multiple through holes 211 on the clamping plate 21 pre-tighten the multiple expansion nails 8, ensuring that the expansion nails 8 will not fall off the clamping plate 21. When the magnetic yoke is assembled with the stator support 11, the pressing mechanism 6 applies a pressing force, which overcomes the radial constraint of the elastic element 22, allowing the expansion nail 8 to smoothly disengage from the through hole 211 and embed into the assembly groove of the stator support 11, thereby achieving synchronous pressing of multiple expansion nails 8 and improving the motor assembly efficiency.

[0055] In some embodiments, the loading mechanism 4 further includes a second driving member 45 and a transmission part 43. The transmission part 43 is connected to the second driving member 45 and the rotating shaft 41, thereby driving the rotating shaft 41 to reciprocate. In one reciprocating rotation cycle of the rotating shaft 41 (the elastic clamping block 42 switches from the first station to the second station and then back to the first station, which is one rotation cycle, or the elastic clamping block 42 switches from the second station to the first station and then back to the second station, which is one rotation cycle), the nail groove 321 reciprocates between the picking position and the discharging position for one cycle (the nail groove 321 moves from the discharging position to the picking position and then back to the discharging position, which is one movement cycle).

[0056] When the elastic clamping block 42 is in the first station, the nail groove 321 is coaxially aligned with the clamping hole (in the horizontal direction). After the driving mechanism 5 pushes the expansion nail 8 in the nail groove 321 into the clamping hole, the second driving member 45 and the transmission part 43 drive the rotating shaft 41 to rotate until the rotating shaft 41 drives the elastic clamping block 42 to the second station. At this time, the second driving member 45 stops driving. After the driving mechanism 5 pushes the expansion nail 8 in the clamping hole (in the vertical direction) into the through hole 211, the second driving member 45 continues to drive and the rotating shaft 41 to rotate until the rotating shaft 41 drives the elastic clamping block 42 back to the first station. At this time, the feeding plate 32, driven by the first driving member 31, has completed the material picking action again, and the nail groove 321 carrying the expansion nail is once again coaxially aligned with the clamping hole in the first station. Repeating the above operation realizes the continuous transfer of the expansion nail 8 in the nail groove 321 into the clamping hole.

[0057] Furthermore, during one reciprocating rotation cycle of the rotating shaft 41, the rotation angle of the clamping plate 21 is equal to the central angle formed by the line connecting the center points of two adjacent through holes 211 and the rotation center of the clamping plate 21; the rotation of the clamping plate 21 can be driven by an independent drive unit. Specifically, when the elastic clamping block 42 is in the second position, the clamping hole is coaxially aligned with a through hole 211. After the drive mechanism 5 pushes the expansion pin 8 in the clamping hole into the through hole 211, the clamping plate 21 continues to rotate. When the elastic clamping block 42 rotates back to the second position again during one rotation cycle, the next through hole 211 adjacent to the previous through hole 211 on the clamping plate 21 is aligned with the clamping hole again; repeating the above operation realizes the continuous transfer of the expansion pin 8 from the clamping hole to each through hole 211.

[0058] The elastic clamping block 42 is located on one side of the feed plate 32 in the horizontal direction, the rotating shaft 41 is located above the clamping plate 21, and the elastic clamping block 42 is located directly above any through hole 211 on the clamping plate 21, so that when the elastic clamping block 42 rotates around the rotating shaft 41, the elastic clamping block 42 makes the clamping hole coaxial with the nail groove 321 in the first position, and makes the clamping hole correspond to the through hole 211 in the second position.

[0059] In some embodiments, the transmission unit 43 includes, but is not limited to, a gear and rack. For example, the transmission unit 43 includes a rack 431 fixedly mounted on the bracket 11 and a gear 432 located at the other end of the rotating shaft 41, the gear 432 meshing with the rack 431. A second driving member 45 is fixedly mounted on the bracket 11, the bracket 11 being fixedly mounted on the clamping platform 1. The actuating end of the second driving member 45 is connected to a movable plate 44, the movable plate 44 slidingly engaging with the bracket 11 via a slide rail. The rotating shaft 41 is rotatably mounted on the movable plate 44 via bearings. Under the action of the second driving member 45, the movable plate 44 reciprocates up and down, thereby driving the rotating shaft 41 to move up and down, and during the movement, it reciprocates under the action of the gear 432 and the rack 431.

[0060] In addition, to prevent the expansion pin 8 in the pin groove 321 from being unable to be stably inserted into the clamping hole due to the excessive distance between the pin groove 321 and the clamping hole when it is transferred into the clamping hole, a transition plate 46 can be set on the moving plate 44, and a transition hole coaxially aligned with the clamping hole can be set on the transition plate 46 to ensure that the expansion pin 8 can remain coaxially aligned with the clamping hole before entering the clamping hole and after the expansion pin 8 has entered the clamping hole in a small amount.

[0061] An inner groove 212 is provided on the circumferential outer wall of the clamping plate 21. The elastic element 22 is placed in the inner groove 212 in an overall ring structure. The inner groove 212 is connected to the through hole 211 through the interference hole 213, so that part of the elastic element 22 interferes with the expansion pin 8 in the through hole 211 through the interference hole 213, thereby generating a radial clamping force on the expansion pin 8.

[0062] Furthermore, the elastic element 22 is a spring or an elastic band. The spring includes a helical spring, a torsion spring, etc., and the elastic band is made of elastic materials such as rubber or polyurethane. Its geometric shape can be strip, sheet, or flexible strip.

[0063] To ensure the radial clamping force of the elastic element 22 on the expansion pin 8, in this embodiment, the width of the elastic element 22 extending into the through hole 211 through the interference hole 213 is X1, and the diameter of the through hole 211 is X2, wherein the range of X1:X2 is between 1:12 and 1:8, so as to ensure that the elastic element 22 can at least partially contact the expansion pin 8 in the through hole 211 and maintain a certain clamping force.

[0064] The feeding mechanism 3 also includes a feeding box 33 located on the upper side of the feeding plate 32. The bottom of the feeding box 33 is provided with a square outlet, which corresponds to the nail groove 321. Multiple expansion nails 8 are horizontally distributed in the feeding box 33. The distance between the front and rear side walls of the feeding box 33 is slightly greater than the length of the expansion nail 8, which can play a certain limiting role for the expansion nail 8, so that multiple expansion nails 8 can be initially sorted when loaded into the feeding box 33, so that multiple expansion nails 8 are arrayed inside the feeding box 33. As the feeding plate 32 moves, the nail groove 321 corresponds to a certain expansion nail 8 in the feeding box 33 at the square outlet, and the expansion nail 8 enters the nail groove 321 under its own gravity.

[0065] The drive mechanism 5 includes a third drive member 51 and a fourth drive member 52. The fourth drive member 52 is fixedly mounted on the bracket 11 and has a fourth actuating end that extends or retracts along the length direction of the nail groove 321. The fourth actuating end can extend into the nail groove 321 to ensure that the expansion nail 8 in the nail groove 321 is pushed out.

[0066] The third driving member 51 is fixedly mounted on the moving plate 44. The third driving member 51 has a third actuating end that extends or retracts along the axial direction of the clamping plate 21. The third actuating end can extend into the clamping hole, thereby ensuring that the expansion pin 8 in the clamping hole is pushed out.

[0067] It should be noted that the first driving component 31 to the fourth driving component 52 can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, etc. There are no restrictions here, as long as their moving ends can make linear movements, they all fall within the protection scope of this application.

[0068] The device also includes a clamping platform 1, and a clamping mechanism 2, a feeding mechanism 3, a loading mechanism 4, and a drive mechanism 5 are all located on the clamping platform 1. The clamping platform 1 is provided with an mounting position for assembling the stator unit 7, and the clamping platform 1 is also provided with a pressing mechanism 6 corresponding to the stator unit 7. After the clamping plate 21 is fully equipped with expansion pins 8, the clamping plate 21 can be placed on the stator unit 7 manually or automatically, and the expansion pins 8 are pressed into the expansion pin holes of the stator unit 7 by the pressing mechanism 6.

[0069] Furthermore, the pressing mechanism 6 includes a fifth driving member 61 and a pressing plate 62 at the actuating end of the fifth driving member 61. Under the drive of the fifth driving member 61, the pressing plate 62 simultaneously presses multiple expansion pins 8 on the clamping plate into the expansion pin holes of the stator unit 7.

[0070] In addition, the clamping mechanism 2 includes a tray 23 on the clamping platform 1, and the clamping plate 21 is detachably mounted on the tray 23. The detachable method includes, but is not limited to, snap-fit ​​connection, bolt connection, etc., or it can be directly placed on the tray 23. The detachable connection is achieved by using the friction or interference fit between the two to ensure that the clamping plate 21 does not shift during rotation.

[0071] The tray 23 achieves precise rotation driven by a motor and a gearbox. The motor and gearbox can be mounted on the clamping platform 1 to satisfy the rotational relationship between the clamping plate 21 and the rotating shaft 41, ensuring that each through hole 211 can correspond to the clamping hole at a preset position, so that each through hole 211 can clamp the expansion pin 8.

[0072] It should be noted that after the expansion pin 8 enters the through hole 211, the upper end of the expansion pin 8 should protrude from the through hole 211 to facilitate the subsequent pressing by the pressing mechanism 6. Based on this, when the clamping plate 21 is placed on the stator unit 7, the stator unit 7 has a coil frame that matches the outer ring of the clamping plate 21, thus ensuring that the clamping plate 21 can be stably placed on the stator unit 7. Furthermore, the distribution of the through holes 211 matches the distribution of the expansion pin holes in the stator unit 7, ensuring a one-to-one correspondence between the expansion pins 8 and the expansion pin holes. Through the cooperation between the outer ring of the clamping plate 21 and the inner ring of the coil frame, the positioning of the expansion pins 8 and the expansion pin holes can be achieved without excessive adjustment of the alignment.

[0073] Since the lower side of the expansion pin 8 will protrude from the clamping plate 21 when the pressing mechanism 6 presses down the clamping plate 21, the lower part of the expansion pin 8 will be embedded into the expansion pin hole of the stator unit 7 after the clamping plate 21 is initially positioned with the stator unit 7 during pressing. After pressing is completed, the elastic element 22 is removed, the clamping plate 21 moves upward, and the frictional resistance between the expansion pin 8 and the expansion pin hole is used to separate the clamping plate 21 from the expansion pin 8, thus completing the synchronous pressing of multiple expansion pins 8.

[0074] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0075] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A motor expansion pin pressing device, characterized in that, include: The clamping mechanism (2) includes a rotatable clamping disk (21) and an elastic element (22) disposed on the outer periphery of the clamping disk (21). The clamping disk (21) has a plurality of through holes (211) extending axially along the clamping disk (21) in the circumferential direction. The elastic element (22) and each of the through holes (211) interfere radially. The feeding mechanism (3) includes a first driving member (31) and a feeding plate (32) driven by it. The feeding plate (32) is provided with a nail groove (321). The nail groove (321) reciprocates between the material picking position and the material discharging position. The loading mechanism (4) includes a reciprocating rotating shaft (41). ) and an elastic clamping block (42) provided at one end of the rotating shaft (41), the elastic clamping block (42) having a clamping hole; the elastic clamping block (42) has a first working position and a second working position: in the first working position, the clamping hole is coaxially aligned with the nail groove (321); in the second working position, the clamping hole is coaxially aligned with a through hole (211); a driving mechanism (5) is used to push the expansion nail (8) in the nail groove (321) into the clamping hole when the elastic clamping block (42) is in the first working position, and to push the expansion nail (8) in the clamping hole into the clamping hole when the elastic clamping block (42) switches to the second working position. 8) Push into the corresponding through hole (211); the loading mechanism (4) includes a second driving member (45) and a transmission part (43), the transmission part (43) is connected to the second driving member (45) and the rotating shaft (41) to drive the rotating shaft (41) to reciprocate; in one reciprocating rotation cycle of the rotating shaft (41), the nail groove (321) reciprocates between the material taking position and the material releasing position for one cycle; in one reciprocating rotation cycle of the rotating shaft (41), the rotation angle of the clamping plate (21) is equal to the center point of two adjacent through holes (211) and the clamping plate (21). The central angle formed by the line connecting the rotation centers; the transmission part (43) includes a rack (431) fixedly mounted on the bracket (11) and a gear (432) located at the other end of the rotating shaft (41), the gear (432) meshing with the rack (431); the second driving member (45) is fixedly mounted on the bracket (11), the moving end of the second driving member (45) is connected to a moving plate (44), the rotating shaft (41) is rotatably mounted on the moving plate (44), the moving plate (44) reciprocates under the action of the second driving member (45) to drive the rotating shaft (41) to reciprocate.

2. The motor expansion pin pressing device according to claim 1, characterized in that, The clamping plate (21) has an inner groove (212) on its circumferential outer wall, and the elastic element (22) is placed in the inner groove (212); the inner groove (212) is connected to the through hole (211) through the interference hole (213), and part of the elastic element (22) interferes with the expansion pin (8) in the through hole (211) through the interference hole (213).

3. The motor expansion pin pressing device according to claim 2, characterized in that, The elastic element (22) is a spring or an elastic band, and / or the elastic clamp (42) is a rubber block.

4. The motor expansion pin pressing device according to claim 1, characterized in that, The feeding mechanism (3) includes a feeding box (33) located on the upper side of the feeding plate (32). The bottom of the feeding box (33) is provided with a square outlet, which corresponds to the nail groove (321).

5. The motor expansion pin pressing device according to claim 1, characterized in that, The drive mechanism (5) includes a third drive member (51) and a fourth drive member (52). The third drive member (51) is fixedly mounted on the moving plate (44). The third drive member (51) has a third actuating end that extends or retracts along the axial direction of the clamping plate (21) and can extend into the clamping hole. The fourth drive member (52) is fixedly mounted on the bracket (11). The fourth drive member (52) has a fourth actuating end that extends or retracts along the length direction of the nail groove (321) and can extend into the nail groove (321).

6. The motor expansion pin pressing device according to claim 1, characterized in that, It also includes a clamping platform (1), the clamping mechanism (2), the feeding mechanism (3), the loading mechanism (4) and the driving mechanism (5) are all located on the clamping platform (1), the clamping platform (1) has an mounting position for assembling the stator unit (7), and the clamping platform (1) is provided with a pressing mechanism (6) corresponding to the stator unit (7); the pressing mechanism (6) includes a fifth driving member (61) and a pressure plate (62) located at the actuating end of the fifth driving member (61), the pressure plate (62) is used to press the expansion pins (8) on the clamping plate (21) into the expansion pin holes of the stator unit (7).

7. The motor expansion pin pressing device according to claim 6, characterized in that, The clamping mechanism (2) includes a tray (23) disposed on the clamping platform (1), and the clamping disk (21) is detachably disposed on the tray (23). The tray (23) rotates under the drive of the motor and the gearbox to change the position of the through hole (211).

8. The motor expansion pin pressing device according to claim 6, characterized in that, The stator unit (7) has a coil frame that is adapted to the outer ring of the clamping plate (21), and the distribution of the through holes (211) matches the distribution of the expansion pin holes of the stator unit (7).

Images