Aircraft electric seat motor assembly device

Abstract

The present invention relates to the technical field of motor assembly tooling, and specifically proposes an aircraft electric seat motor assembly device; it is used for press-fitting a rotor assembly and a stator assembly, comprising: a workbench, on which a frame is fixed; a side clamping mechanism, assembled on the frame and used for positioning the side clamps of the stator assembly; a buffer positioning frame, provided at the top of the frame, comprising two horizontally oppositely arranged positioning support plates; an axis positioning mechanism, provided below the frame; and a pressing mechanism; when performing press-fitting, the pressing component drives the rotor assembly and the positioning support plates to descend synchronously, the lifting component pushes the guide cylinder upward, and the rotor shaft enters between the two side clamps; the device provided by the present invention greatly improves the accuracy of press-fitting positioning and the stability of press-fitting operation, improves the coaxiality of the press-fitting fit between the rotor assembly and the stator assembly, ensures the uniformity of the air gap, and improves the quality of press-fitting.

Description

Technical Field

[0001] The invention relates to the technical field of motor assembly tooling, and particularly provides an aircraft electric seat motor assembly device. Background Art

[0002] Aircraft power seat motors, as the name suggests, are the motors installed within aircraft power seats. They are key components for adjusting the seat's position, driving various functions such as forward and backward sliding, vertical height adjustment, and seatback tilt adjustment to meet passengers' diverse needs. While aircraft power seat motors function essentially the same as automotive power seat motors, they generally have higher requirements for durability, reliability, stability, low noise, and safety compared to automotive motors. Consequently, higher precision is required during the motor's manufacturing and assembly process.

[0003] In large-scale manufacturing enterprises, large-scale fully automatic production lines are generally used to complete the assembly of motors, but in smaller manufacturing enterprises, multiple semi-automatic assembly devices are usually used to cooperate for step-by-step assembly. Electric seat motors are the same as motors for other purposes in that they all have stator and rotor structures. In the process of step-by-step assembly, it is necessary to complete the pre-assembly of the stator and rotor related structures. The stator structure can be directly fixed in the motor housing, and the rotor structure needs to complete the bearing press-fitting. Aircraft electric seat motors are generally small and compact, so the rotor bearings are usually pressed into the motor housing that has been assembled with the stator structure in a tight fit to achieve fixed installation of the bearings. During actual assembly, it is necessary to ensure the coaxiality between the rotor structure and the stator structure. On the one hand, it is easy to align and achieve tight fit and press-fitting. On the other hand, it is particularly important to ensure the uniformity of the air gap between the rotor structure and the stator structure. Uneven air gaps will cause a series of problems such as increased vibration, increased noise, reduced efficiency, increased heat generation, accelerated bearing wear, and torque shifting.

[0004] In the existing semi-automatic assembly device for the final press-fitting of the rotor structure and the stator structure, the motor housing with the stator structure is generally clamped and positioned by a clamping and positioning structure first, and then the bearing seat in the rotor structure is clamped to indirectly achieve the positioning of the entire rotor structure, and the rotor shaft is inserted into a guide column with a socket at the top to achieve auxiliary support for the rotor structure, thereby cooperating with the pressing structure to complete the press-fitting. Although the above method can complete the final press-fitting, there are several problems as follows: (1) To ensure the uniformity of the air gap, it is necessary to ensure the coaxiality between the rotor structure and the stator structure. Further, it is necessary to ensure the coaxiality between the rotor shaft and the stator structure. In the above operation, the assembly error between the bearing seat and the motor housing does not directly affect the uniformity of the air gap, but the bearing seat is used to position the rotor structure indirectly. When there is an assembly error between the bearing seat and the rotor shaft, it will inevitably affect the coaxiality of the press-fitting, resulting in uneven air gap after the press-fitting.

[0005] (2) After the press-fitting is completed, the rotor shaft needs to be pulled out from the socket of the guide pin during unloading. Therefore, the radius of the guide pin socket is usually slightly larger than the radius of the rotor shaft. The guide pin only plays an auxiliary role in the press-fitting process and does not play a substantial role in the positioning accuracy and the final press-fitting accuracy. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides an aircraft electric seat motor assembly device, which is used to solve the problems mentioned in the above background technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions: an aircraft electric seat motor assembly device for press-fitting a rotor assembly and a stator assembly, comprising: a workbench with a frame fixed on the workbench; a side clamping mechanism assembled on the frame for positioning the stator assembly side clamps, comprising two horizontally opposed slide rail brackets and two corresponding side clamping assemblies assembled thereto; a buffer positioning frame disposed on the top of the frame, comprising two horizontally opposed positioning support plates for positioning and supporting the rotor assembly;

[0008] The shaft positioning mechanism is arranged under the frame and includes a lifting component, a guide cylinder is vertically fixed on the top of the lifting component, and two side clamps extending into the guide cylinder are relatively slidably installed on the lifting component, and the two side clamps are connected with adaptive connectors that vertically slide with adjacent slide rail brackets; a limit component that is equidistant from the center of the guide cylinder is connected between the two side clamps; and a pressing mechanism, including a pressing component located above the positioning support plate; when pressing, the pressing component drives the rotor component and the positioning support plate to descend synchronously, the lifting component pushes the guide cylinder upward, and the rotor shaft enters between the two side clamps; the side clamps clamp the stator component and at the same time drive the side clamps to clamp the rotor shaft through the adaptive connector. Before the pressing is completed, the positioning support plates move toward each other to a position that avoids both the rotor component and the stator component.

[0009] Preferably, the lifting component includes a vertically sliding lifting slide; a sliding portion is fixed to the bottom end of the side clamp, which cooperates with the lifting slide for horizontal sliding; the limiting assembly includes a sliding hinge seat installed on the lifting slide for horizontal sliding along a direction perpendicular to the sliding direction of the sliding portion, and two limiting links are hinged on the sliding hinge seat, and the two limiting links are hinged one by one on the sliding portions of the two side clamps.

[0010] Preferably, the side clamping piece is provided with a clamping groove extending from the top downward on the side wall facing the other side clamping piece, and the clamping groove includes a clamping surface clamped with the side wall of the rotor shaft and a lower supporting surface in contact with the bottom end of the rotor shaft.

[0011] Preferably, the upper end surface of the positioning support plate is provided with a limiting groove for positioning and supporting the rotor assembly; the pressing component includes a central pressure plate arranged centrally relative to the limiting grooves of the two positioning support plates, and a roller frame is installed on the top connecting part of the central pressure plate in a vertical sliding fit and elastic connection, and two rows of pressure rollers distributed on both sides of the central pressure plate are installed on the roller frame, and multiple pressure rollers in each row are arranged and distributed along the horizontal moving direction of the positioning support plate; and the lower cutting horizontal surface of the entire row of pressure rollers is lower than the lower end surface of the central pressure plate.

[0012] Preferably, the buffer positioning frame also includes two buffer brackets and two guide frames, both of which are assembled on the frame, and the two buffer brackets are located between the two guide frames; the two positioning pallets are horizontally slidably installed on the top of the two buffer brackets and connected between the two guide frames; during the descent of the positioning pallet, under the guidance of the two guide frames, the two positioning pallets slide horizontally away.

[0013] Preferably, the adaptive connector includes a guide rod horizontally fixed on the sliding part, a slider is slidably mounted on the guide rod, the slider is vertically slidably mounted on the slide rail bracket, an adaptive spring is sleeved on the guide rod, and both ends of the adaptive spring are respectively fixed on the sliding part and the slider.

[0014] Preferably, the buffer bracket includes two guide columns vertically slidably mounted on the frame and a beam slide rail horizontally fixed between the top ends of the two guide columns, and a buffer spring is vertically connected between the beam slide rail and the frame; the positioning support plate is slidably mounted on the beam slide rail.

[0015] Preferably, the guide frame is provided with two guide holes corresponding to the two positioning support plates one by one, the guide holes include a vertical hole section and an inclined hole section connected to the lower end of the vertical hole section with an arc transition, the inclined hole sections of the two guide holes are arranged in an "eight" shape, and the side end of the positioning support plate is horizontally rotatably installed with a movable pin that moves along the corresponding guide hole.

[0016] Preferably, the side clamp assembly includes a travel slider horizontally slidably installed on the frame, a guide block is slidably installed on the travel slider along its sliding direction, a side clamp block is fixed to one end of the guide block, and at least one side clamp spring is connected between the side clamp block and the travel slider; the slide rail bracket is fixed to the bottom end of the travel slider.

[0017] The above technical solution has the following advantages or beneficial effects: The present invention provides an aircraft electric seat motor assembly device, which is provided with a side clamping mechanism for positioning and clamping the stator assembly, and a buffer positioning frame for press-fitting auxiliary support and preliminary positioning of the rotor assembly. The side clamping mechanism is used as a reference to match the shaft positioning mechanism for positioning and clamping the rotor shaft, so that during the press-fitting process, the structural design and press-fitting method of the existing corresponding press-fitting device are changed, the side clamping assembly is used as a reference to position the stator assembly, the buffer positioning frame is used to support and preliminarily position the rotor assembly, and the shaft positioning mechanism is used to directly position the rotor shaft. In addition, the buffer positioning frame is used to assist in supporting and positioning during the press-fitting process, which improves the accuracy of press-fitting positioning and the stability of the press-fitting operation, improves the coaxiality of the press-fitting fit between the rotor assembly and the stator assembly, ensures the uniformity of the air gap, and improves the quality of press-fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0019] Figure 1 The figure is a schematic diagram of the three-dimensional structure of an aircraft electric seat motor assembly device provided by the present invention.

[0020] Figure 2 The figure is a front view of an aircraft electric seat motor assembly device provided by the present invention.

[0021] Figure 3 It is a three-dimensional structural diagram of the assembly and cooperation of the shaft positioning mechanism and the side clamping mechanism.

[0022] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0023] Figure 5 It is a three-dimensional structural diagram of the assembly of the side clamping mechanism partial structure and the shaft positioning mechanism partial structure.

[0024] Figure 6 It is a three-dimensional structural diagram of the buffer positioning frame.

[0025] Figure 7 It is a three-dimensional structural diagram of the assembly of the side clamp, the limit component and the adaptive connector.

[0026] Figure 8 It is a three-dimensional structural diagram of the pressing mechanism.

[0027] Figure 9 This is a three-dimensional structural diagram of the stator assembly.

[0028] Figure 10 This is a three-dimensional structural diagram of the rotor assembly.

[0029] Figure 11 It is a three-dimensional cross-sectional view of the stator assembly and the rotor assembly after press-fitting.

[0030] In the figure: 1. Workbench; 11. Frame; 2. Side clamping mechanism; 21. Side clamping assembly; 211. Travel slider; 212. Guide block; 213. Side clamping block; 214. Side clamping spring; 22. Slide rail bracket; 23. Side clamping cylinder; 3. Buffer positioning frame; 31. Buffer bracket; 311. Guide column; 312. Crossbeam slide rail; 313. Buffer spring; 32. Positioning support plate; 321. Limiting groove; 322. Moving pin; 33. Guide frame; 331. Guide hole; 4. Shaft positioning mechanism; 41. Vertical pole; 42. Lifting component; 421. Lifting slide plate; 42 2. Connecting plate; 43. Guide cylinder; 44. Side clamp; 441. Sliding part; 442. Clamping groove; 45. Limiting assembly; 451. Sliding hinge; 452. Limiting link; 46. Adaptive connecting piece; 461. Guide rod; 462. Slider; 463. Adaptive spring; 5. Pressing mechanism; 51. Support frame; 52. Pressing cylinder; 53. Pressing component; 531. Center pressure plate; 532. Roller frame; 533. Pressure roller; 534. Compression spring; 6. Stator assembly; 61. Casing; 7. Rotor assembly; 71. Rotor shaft; 72. Bearing seat; 73. Bearing. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] An aircraft electric seat motor assembly device for Figure 10 The rotor assembly 7 shown is similar to the Figure 9 The stator assembly 6 shown is press-fitted. It should be noted that Figure 10 The rotor assembly 7 shown in FIG. Figure 9 The stator assemblies 6 shown in the figure have all been pre-assembled accordingly. The motor stator structure of the stator assembly 6 is pre-fixed in the motor casing 61, and the rotor shaft 71 of the motor rotor structure in the rotor assembly 7 has pre-completed the press-fitting of two bearings 73, and one of the bearings 73 is fixed on a bearing seat 72 docked with one end of the casing 61. That is, in this embodiment, the stator assembly 6 includes a casing 61 portion, and the rotor assembly 7 includes a bearing 73 and a bearing seat 72. The assembly device provided by the present invention is used to press-fit the rotor assembly 7 into the stator assembly 6, so that the bearing 73 without the bearing seat 72 is pressed and fixed on the bearing mounting portion in the casing 61 in a tight fit, and ensure that the rotor assembly 7 is in the center position of the stator assembly 6, thereby ensuring the uniformity of the air gap; the final press-fit structure is as shown in FIG. Figure 11 shown.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 11 As shown, the assembly device includes a workbench 1, and a frame 11 is welded on the surface of the workbench 1; a window is opened at the top of the frame 11; a side clamping mechanism 2 for side clamping and positioning the stator assembly 6 is assembled on the frame 11 in the window; the side clamping mechanism 2 includes two horizontally oppositely arranged slide rail brackets 22 and two correspondingly assembled side clamping assemblies 21; two horizontally oppositely arranged side clamping cylinders 23 are fixed to the frame 11 by bolts, and the two slide rail brackets 22 are fixed to the output ends of the two side clamping cylinders 23 by bolts one by one; the side clamping assembly 21 includes a stroke slider 211 horizontally slidably installed in the window, and a guide block 212 is slidably mounted on the stroke slider 211 along its sliding direction, and a side clamping block 213 is fixed to one end of the guide block 212 by screws, and four side clamping springs 214 are welded between the side clamping block 213 and the stroke slider 211; the slide rail bracket 22 is fixed to the bottom end of the stroke slider 211 by bolts. The opposing surfaces of the two side clamping blocks 213 are side clamping surfaces that match the outer contour of the housing 61 .

[0035] When performing the press-fitting operation, first perform side clamp positioning on the stator assembly 6. Specifically, the stator assembly 6 is positioned according to Figure 1 In the state shown in the figure, the stator assembly 6 is placed between the two side clamping blocks 213, so that the stator assembly 6 is overlapped on the top of the two side clamping blocks 213. Subsequently, the two side clamping cylinders 23 are started synchronously, so that the two slide rail brackets 22 move toward each other, and the two stroke sliders 211 move synchronously therewith, and then the stator assembly 6 is positioned and clamped between the two side clamping blocks 213 through the housing 61, thereby achieving fixed positioning of the stator assembly 6.

[0036] like Figure 1 、 Figure 2 、 Figure 6 and Figure 11 As shown, the top of the frame 11 is equipped with a buffer positioning frame 3, which includes two buffer brackets 31, two positioning support plates 32 and two guide frames 33. The two buffer brackets 31 are located between the two guide frames 33; the buffer bracket 31 includes two guide columns 311 vertically slidably installed on the frame 11 and a beam slide rail 312 horizontally fixed between the top ends of the two guide columns 311 by screws. Buffer springs 313 are sleeved on the two guide columns 311, and the two ends of the buffer spring 313 are respectively welded to the bottom end of the beam slide rail 312 and the frame 11; the two positioning support plates 32 are horizontally arranged opposite to each other and slidably installed between the two beam slide rails 312. In this embodiment, the sliding direction of the positioning support plate 32 on the beam slide rail 312 is perpendicular to the sliding direction of the travel slider 211. The guide frame 33 is welded to the top of the frame 11. The guide frame 33 is provided with two guide holes 331 that correspond one-to-one with the two positioning support plates 32. The guide hole 331 includes a vertical hole section and an oblique hole section with an arc transition connected to the lower end of the vertical hole section. The oblique hole sections of the two guide holes 331 are arranged in an "eight" shape. The side end of the positioning support plate 32 is horizontally rotatably installed with a movable pin 322 that moves along the corresponding guide hole 331.

[0037] like Figure 6 and Figure 11 As shown, the two positioning support plates 32 are used to position and support the rotor assembly 7; the upper end surface of the positioning support plate 32 is provided with a limiting groove 321 for positioning and supporting the bearing seat 72 in the rotor assembly 7, and the limiting groove 321 is provided with a semicircular hole for vertical placement of the rotor assembly 7; it should be noted that, in this embodiment, the edge size of the limiting groove 321 is slightly larger than the edge size of the bearing seat 72, and the limiting groove 321 only plays a preliminary limiting role on the bearing seat 72, so as to facilitate the subsequent precise positioning of the rotor shaft 71 and retain the movable margin.

[0038] After the stator assembly 6 is positioned, the rotor assembly 7 can be placed. Specifically, the rotor assembly 7 is positioned as follows. Figure 1 In the state shown, the rotor assembly 7 is inserted between the two positioning support plates 32 and the bearing seat 72 is placed flat in the two limiting grooves 321, thereby completing the placement of the rotor assembly 7 and completing the preliminary positioning.

[0039] like Figure 1 、 Figure 2 、 Figure 8 and Figure 11As shown, a pressing mechanism 5 is assembled on the workbench 1; the pressing mechanism 5 includes a support frame 51 welded on the workbench 1, a pressing cylinder 52 vertically fixed to the top of the support frame 51 by bolts, and a pressing component 53 assembled at the output end of the pressing cylinder 52; the pressing component 53 includes a central pressure plate 531 centered relative to the two positioning support plates 32, the central pressure plate 531 is fixed to the output end of the pressing cylinder 52, the central pressure plate 531 and the bearing seat 72 of the rotor assembly 7 are both square structures, and the side length of the central pressure plate 531 is smaller than the side length of the bearing seat 72; the output end of the pressing cylinder 52 is vertically slidably fitted with a roller frame 532, and a compression spring 534 is welded between the roller frame 532 and the output end of the pressing cylinder 52, and the roller frame 532 is equipped with two rows of pressure rollers 533 symmetrically distributed on both sides of the central pressure plate 531, and multiple pressure rollers 533 in each row are evenly arranged and distributed along the horizontal movement direction of the positioning support plate 32. When the compression spring 534 is not compressed, the lower cutting horizontal surface of the entire row of pressure rollers 533 is lower than the lower end surface of the central pressure plate 531.

[0040] After the rotor assembly 7 is placed, the pressing mechanism 5 needs to perform preliminary pressing on the bearing seat 72. Specifically, the pressing cylinder 52 drives the pressing component 53 to move downward as a whole, and the two rows of pressing rollers 533 first press on the two positioning support plates 32. As the compression spring 534 is compressed, the center pressure plate 531 presses on the bearing seat 72. At this point, the preliminary pressing is completed, so that the pressing component 53, the bearing seat 72 and the positioning support plate 32 are pressed synchronously.

[0041] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 11As shown, in the present invention, in order to reduce the influence of the assembly error of the rotor assembly 7 itself on the press-fitting accuracy, the rotor assembly 7 is not press-fitted and positioned indirectly through the bearing seat 72, but the rotor shaft 71 is directly clamped and positioned to ensure the coaxiality of the press-fit between the rotor assembly 7 and the stator assembly 6. Therefore, an axis positioning mechanism 4 is also installed on the workbench 1. The axis positioning mechanism 4 is located below the frame 11. The axis positioning mechanism 4 includes two vertically welded vertical rods 41 on the workbench 1. A lifting component 42 is installed on the vertical rod 41. The lifting component 42 includes a lifting slide 421 vertically slidably installed between the two vertical rods 41 and a connecting plate 422 fixed to the bottom end of the lifting slide 421 by screws. The lifting component 42 can be driven to rise and fall by a cylinder. The cylinder is not shown in the figure. The cylinder can be vertically fixed to the bottom end of the workbench 1 by bolts, and the connecting plate 422 can be fixed by screws. The wire is fixed to the output end of the cylinder; a guide cylinder 43 is vertically welded to the top of the lifting slide 421, and the two ends of the guide cylinder 43 are open structures, and the bottom end of the guide cylinder 43 is connected to the lifting slide 421. It should be noted that in the present invention, the shaft positioning mechanism 4 is cooperated with the side clamping mechanism 2. When the stator rotor completes the side clamping positioning through the side clamping mechanism 2, the center axis of the stator assembly 6 coincides with the center axis of the guide cylinder 43; two side clamping members 44 extending into the guide cylinder 43 are relatively installed on the lifting slide 421 for relative sliding, and a sliding part 441 is welded at the bottom end of the side clamping member 44 for horizontal sliding cooperation with the lifting slide 421, and the sliding direction of the side clamping member 44 is along the sliding direction of the stroke slider 211; the side clamping member 44 is provided with a clamping groove 442 from the top downward on the side wall facing the other side clamping member 44, and the clamping groove 442 includes an arc clamping surface that is clamped with the side wall of the rotor shaft 71 and a lower supporting surface that contacts the bottom end of the rotor shaft 71. A limit assembly 45 is connected between the two side clamps 44 and is kept equidistant from the center of the guide cylinder 43; the limit assembly 45 includes a sliding hinge seat 451 mounted on the lifting slide 421 for horizontal sliding along a direction perpendicular to the sliding direction of the sliding portion 441, and two limit links 452 are hinged on the sliding hinge seat 451, and the two limit links 452 are hinged one by one on the sliding portions 441 of the two side clamps 44; through the constraint of the limit assembly 45, it is ensured that the two side clamps 44 are always at an equal distance from the center axis of the guide cylinder 43 after relative movement, so as to improve the clamping positioning accuracy.

[0042] like Figure 3 、 Figure 7 and Figure 11As shown, both side clamps 44 are connected to adaptive connectors 46 that vertically slide with adjacent rail supports 22. The adaptive connectors 46 include a guide rod 461 horizontally welded to a sliding portion 441. A slider 462 is slidably mounted on the guide rod 461. The slider 462 vertically slides on the rail supports 22. An adaptive spring 463 is sleeved on the guide rod 461. The ends of the adaptive spring 463 are welded to the sliding portion 441 and the slider 462, respectively. Through the mating connection between the adaptive connectors 46 and the rail supports 22, on the one hand, the rail supports 22 can indirectly push the side clamps 44 to slide via the adaptive connectors 46. On the other hand, the lifting component 42 can slide vertically along the two rail supports 22 via the two adaptive connectors 46. The rail supports 22 can cooperate with the vertical rod 41 to further provide a lifting guide.

[0043] It should be noted that in the present invention, the side clamping mechanism 2 needs to perform preliminary clamping and further clamping on the stator assembly 6. When the preliminary clamping is completed, the stator assembly 6 is clamped and positioned, but the position of the slide rail bracket 22 makes the adaptive spring 463 still in a stretched state, and the distance between the two side clamps 44 is at the maximum state.

[0044] After the initial tightening of the bearing seat 72 is completed, the cylinder connected to the lifting component 42 is started to drive the lifting component 42 to move upward. The two adaptive connecting parts 46 slide upward synchronously along the slide rail brackets 22 at their respective positions through the sliders 462, and the guide cylinder 43 extends into the interior of the stator assembly 6 as the lifting component 42 moves upward, so that the rotor shaft 71 extends into the inner cavity of the guide cylinder 43 and is located in the two clamping grooves 442. The guide cylinder 43 rises until the bottom end of the rotor shaft 71 touches the inner end surface of the clamping groove 442.

[0045] Next, the side clamping mechanism 2 performs further clamping, and the two slide rail brackets 22 move further toward each other, so that the adaptive spring 463 gradually changes from a stretched state to a compressed state, and under the restriction of the limit assembly 45, pushes the side clamping member 44 to clamp the rotor shaft 71 through the clamping groove 442, so that on the basis of completing the preliminary positioning of the rotor assembly 7, the rotor shaft 71 is clamped and positioned to achieve the final positioning of the rotor assembly 7, thereby changing the existing indirect positioning method by positioning the bearing seat 72, so as to improve the positioning accuracy and ensure the coaxiality of the press-fit between the rotor assembly 7 and the stator assembly 6.

[0046] Finally, the final press-fitting is completed by further pressing down the pressing mechanism 5. Specifically, the pressing cylinder 52 is started again, causing the pressing component 53 to further descend. At this time, the cylinder connected to the bottom end of the lifting component 42 keeps synchronization with the pressing cylinder 52, that is, the guide cylinder 43 and the pressing component 53 descend synchronously. By pressing down, when the moving pin 322 moves along the vertical hole section, the rotor assembly 7 always moves downward synchronously under the support of the two positioning support plates 32. When the moving pin 322 moves along the inclined hole section, during the downward movement of the positioning support plate 32, The two positioning plates 32 slide away from each other in the crossbeam slide rail 312 until the two positioning plates 32 move away from the bearing seat 72 and simultaneously avoid the casing 61 in the stator assembly 6, completing the press-fit avoidance. During this process, the rolling contact between the pressure roller 533 and the positioning plate 32 reduces the resistance when the positioning plate 32 moves away. As it continues to descend, the bearing 73 is aligned with the installation position of the casing 61 until the bottom end of the bearing seat 72 contacts the top end of the casing 61, thereby completing the press-fitting between the rotor assembly 7 and the stator assembly 6.

[0047] After the press-fitting is completed, the pressing component 53 moves upward, and the buffer positioning frame 3 is reset synchronously. Then, the side clamping mechanism 2 is released and the press-fitted motor can be taken out.

[0048] The present invention provides an aircraft electric seat motor assembly device, which is provided with a side clamping mechanism 2 for positioning and clamping a stator assembly 6, and a buffer positioning frame 3 for auxiliary support and preliminary positioning of a rotor assembly 7 for press-fitting. A shaft positioning mechanism 4 for positioning and clamping a rotor shaft 71 is provided in conjunction with the side clamping mechanism 2 as a reference, so that during the press-fitting process, the structural design and press-fitting method of the existing corresponding press-fitting device are changed, the side clamping assembly 21 is used as a reference for positioning the stator assembly 6, the buffer positioning frame 3 is used to support and preliminarily position the rotor assembly 7, and the shaft positioning mechanism 4 is used to directly position the rotor shaft 71. In addition, the buffer positioning frame 3 is used to assist in supporting and positioning during the press-fitting process, thereby improving the accuracy of press-fitting positioning and the stability of the press-fitting operation, improving the coaxiality of the press-fitted fit between the rotor assembly 7 and the stator assembly 6, ensuring the uniformity of the air gap, and improving the quality of press-fitting.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An aircraft electric seat motor assembly device, used for press-fitting the rotor assembly and the stator assembly, characterized in that: include: A workbench with a rack fixed on it; The side clamp mechanism is assembled on the frame and is used to position the side clamps of the stator assembly. It includes two horizontally oppositely arranged slide rail brackets and two correspondingly assembled side clamp assemblies. The buffer positioning frame is provided at the top of the frame and includes two positioning support plates arranged horizontally opposite to each other, which are used to position and support the rotor assembly; The shaft positioning mechanism is arranged below the frame and includes a lifting component, a guide cylinder is vertically fixed to the top of the lifting component, and two side clamps extending into the guide cylinder are relatively slidably mounted on the lifting component. Both side clamps are connected to adaptive connectors that vertically slide with adjacent slide rail brackets; a limit assembly is connected between the two side clamps and is kept equidistant from the center of the guide cylinder; and a pressing mechanism, including a pressing component located above the positioning support plate; during press-fitting, the pressing component drives the rotor component and the positioning support plate to descend synchronously, the lifting component pushes the guide cylinder upward, and the rotor shaft enters between the two side clamps; the side clamping assembly clamps the stator assembly and simultaneously drives the side clamps to clamp the rotor shaft through the adaptive connector, and before press-fitting is completed, the positioning support plates move toward each other to a position that avoids both the rotor assembly and the stator assembly; The lifting component includes a lifting slide that slides vertically; a sliding portion that slides horizontally with the lifting slide is fixed to the bottom end of the side clamp; the limiting assembly includes a sliding hinge seat that slides horizontally on the lifting slide in a direction perpendicular to the sliding direction of the sliding portion, and two limiting links are hinged on the sliding hinge seat, and the two limiting links are hinged on the sliding portions of the two side clamps in a one-to-one manner; The adaptive connector includes a guide rod horizontally fixed on the sliding part, a slider is slidably mounted on the guide rod, the slider is vertically slidably mounted on the slide rail bracket, an adaptive spring is sleeved on the guide rod, and both ends of the adaptive spring are respectively fixed on the sliding part and the slider.

2. The aircraft electric seat motor assembly device according to claim 1, characterized in that: The side clamping piece has a clamping groove extending downward from the top on the side wall facing the other side clamping piece. The clamping groove includes a clamping surface for clamping with the side wall of the rotor shaft and a lower supporting surface for contacting the bottom end of the rotor shaft.

3. The aircraft electric seat motor assembly device according to claim 1, characterized in that: The upper end surface of the positioning support plate is provided with a limiting groove for positioning and supporting the rotor assembly; the downward pressure component includes a central pressure plate arranged centrally relative to the two positioning support plates, and a roller frame is installed on the top connection part of the central pressure plate in a vertical sliding fit and elastic connection, and two rows of pressure rollers distributed on both sides of the central pressure plate are installed on the roller frame, and multiple pressure rollers in each row are arranged along the horizontal movement direction of the positioning support plate, and the lower cutting horizontal surface of the entire row of pressure rollers is lower than the lower end surface of the central pressure plate.

4. The aircraft electric seat motor assembly device according to claim 1, characterized in that: The buffer positioning frame also includes two buffer brackets and two guide frames, both of which are assembled on the frame, and the two buffer brackets are located between the two guide frames; two positioning trays are horizontally slidably installed on the top of the two buffer brackets and connected between the two guide frames; during the descent of the positioning tray, the two positioning trays slide horizontally away under the guidance of the two guide frames.

5. The aircraft electric seat motor assembly device according to claim 4, characterized in that: The buffer bracket includes two guide posts vertically slidably mounted on the frame and a beam slide rail horizontally fixed between the top ends of the two guide posts. A buffer spring is vertically connected between the beam slide rail and the frame; the positioning support plate is slidably mounted on the beam slide rail.

6. The aircraft electric seat motor assembly device according to claim 4, characterized in that: The guide frame is provided with two guide holes corresponding to the two positioning support plates one by one. The guide holes include a vertical hole section and an inclined hole section connected to the lower end of the vertical hole section with an arc transition. The inclined hole sections of the two guide holes are arranged in an "eight" shape, and a movable pin is installed at the side end of the positioning support plate for horizontal rotation and movement along the corresponding guide hole.

7. The aircraft electric seat motor assembly device according to claim 1, characterized in that: The side clamping assembly includes a travel slider horizontally slidably installed on the frame, a guide block is slidably installed on the travel slider along its sliding direction, a side clamping block is fixed to one end of the guide block, and at least one side clamping spring is connected between the side clamping block and the travel slider; the slide rail bracket is fixed to the bottom end of the travel slider.

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