A rivet assembly device

Abstract

The application discloses a riveting assembly device, and belongs to the technical field of riveting assembly, which is used for fixing a to-be-assembled component to another component for riveting assembly by the mode of rivet stamping and riveting. The riveting assembly device comprises a base, a bearing part, a pressing part and a supporting part. The base is provided with a through hole. The bearing part comprises an open shaft sleeve, and the open shaft sleeve penetrates through the base through the through hole. The pressing part is connected with the bearing part through a connecting piece. The supporting part is provided with an open accommodating cavity, and the opening direction of the open accommodating cavity is close to one side of the open shaft sleeve. The supporting part is connected with the base. A punch is assembled in the upper part of the open accommodating cavity. A center point is assembled in the lower part of the open accommodating cavity, and the center point and the punch are coaxial. The top of the to-be-assembled component is pressed and limited by the pressing part and the bearing part. Since the bearing part is provided with the open shaft sleeve, the to-be-assembled component can be fixed between the pressing part and the bearing part without disassembly. The upper and lower ends of the rivet are pressed and supported by the center point and the punch respectively, the rivet can be quickly and efficiently thickened and riveted, and the riveting assembly of the to-be-assembled component can be efficiently and accurately completed.

Description

Technical Field

[0001] This application relates to the field of riveting and assembly technology, and in particular, to a riveting and assembly device. Background Technology

[0002] Currently, the riveting of components requires a device that combines clamping, guiding, and riveting functions. Furthermore, the assembly process necessitates disassembling the components. For example, in turbine rotor disk components, the disk blades and disk are fixed using tenon and mortise structures to restrict radial and circumferential degrees of freedom, and rivets are used to restrict axial degrees of freedom (cylindrical coordinate system). During the assembly of turbine disk components, the assembly fitter needs to perform riveting. On one hand, due to the special structure of the turbine blades and the tilt angle of the turbine disk axis, and on the other hand, due to the assembly quality requirements of turbine disk components, the riveting work must use a device that combines clamping, guiding, and riveting functions. However, existing riveting fixtures have a complex overall structure, high manufacturing costs, and the turbine disk is inconvenient to disassemble and assemble, making it difficult to further improve the efficiency of the riveting process. Summary of the Invention

[0003] This application provides a riveting assembly device, which supports and clamps the wheel rotor assembly through a bearing part and a clamping part, and then completes the riveting assembly through the cooperation of the center and punch on the supporting part. The device has a simple structure, and the components to be assembled can be quickly and efficiently riveted without disassembly, thereby completing the riveting assembly of the components to be assembled efficiently and accurately.

[0004] According to one aspect of this application, an embodiment of this application provides a riveting assembly device, comprising: a base having a through hole; a pressure-bearing part including an open bushing, the open bushing passing through the through hole into the base; a clamping part connected to the pressure-bearing part via a connector; a support part having an open receiving cavity, the opening direction of the open receiving cavity being closer to the side of the open bushing, the support part being connected to the base; a punch assembled on the upper part of the open receiving cavity; and a center assembled on the lower part of the open receiving cavity, the center and the punch being coaxial.

[0005] Optionally, the pressure-bearing part further includes a wing plate, which is fixed to the radial direction of the outer surface of the open bushing.

[0006] Optionally, the clamping part further includes a pressure plate and a bushing, the pressure plate being fixed in the radial direction on the outer surface of the bushing, and the bushing being coaxial with the open bushing.

[0007] Optionally, the number of the wing plates and the pressure plates is the same, and the wing plates and pressure plates in the same radial direction are connected by the connector.

[0008] Optionally, the support portion is slidably connected to the base.

[0009] Optionally, both the punch and the tip can be axially movable.

[0010] Optionally, the head of the punch is provided with a recess, the center of the recess is provided with a point, the recess is coaxial with the punch, and the point is located at the axis of the punch.

[0011] Optionally, the head of the punch is located at one end of the punch near the opening receiving cavity.

[0012] Optionally, the pressure-bearing part can rotate around the axis of the open bushing through the through hole.

[0013] Optionally, the open bushing and the open receiving cavity form an assembly space, and the center and the punch cooperate to complete the riveting assembly.

[0014] The above-mentioned solution in this application has the following beneficial effects: The riveting assembly device of this application includes a base with a through hole; a pressure-bearing part, which includes an open bushing that passes through the through hole into the base; a clamping part connected to the pressure-bearing part via a connector; a support part with an open receiving cavity, the opening of which is closer to the side of the open bushing, and the support part connected to the base; a punch mounted on the upper part of the open receiving cavity; and a center mounted on the lower part of the open receiving cavity, with the center and punch coaxial. This application uses the clamping part and the pressure-bearing part to clamp and limit the top of the component to be assembled. Because the pressure-bearing part has an open bushing, the component to be assembled can be fixed between the clamping part and the pressure-bearing part without disassembly. The center and punch then clamp and support the upper and lower ends of the rivet, respectively, allowing for quick and efficient riveting and assembly of the component to be assembled.

[0015] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above simultaneously. In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. The application will be further described in detail below with reference to figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application; Figure 2 This is a schematic diagram of the assembly device and the wheel rotor assembly in a preferred embodiment of this application; Figure 3 yes Figure 2 Left view sectional view; Figure 4 These are a front cross-sectional view of the punch according to a preferred embodiment of this application and a partial enlarged view of one end of the punch.

[0017] Legend: 100, Disk rotor assembly; 101, Disk blade; 102, Rivet; 103, Washer; 1, Base; 11, Through hole; 2, Center; 3, Punch; 31, Punch head; 32, Limiting platform; 4, Clamping part; 41, Bushing; 42, Pressure plate; 5, Connecting part; 6, Support part; 61, Open receiving cavity; 62, Support column; 63, First limiting part; 64, Connecting part; 65, Second limiting part; 7, Pressure bearing part; 71, Wing plate; 72, Open bushing. Detailed Implementation

[0018] 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 protection scope of this application.

[0019] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application; Figure 2 This is a schematic diagram of the riveting assembly device and the wheel rotor assembly in a preferred embodiment of this application; Figure 3 yes Figure 2 Left view sectional view; Figure 4 These are a front cross-sectional view of the punch according to a preferred embodiment of this application and a partial enlarged view of one end of the punch.

[0020] See also Figure 1 , Figure 2 and Figure 3 This application provides a riveting assembly device, comprising: a base 1, the base 1 having a through hole 11; a pressure bearing part 7, the pressure bearing part 7 including an open bushing 72, the open bushing 72 passing through the through hole 11 and penetrating the base 1; a clamping part 4, the clamping part 4 being connected to the pressure bearing part 7 via a connector 5; a support part 6, the support part 6 having an open receiving cavity 61, the opening direction of the open receiving cavity 61 being closer to the side of the open bushing 41, the support part 6 being connected to the base 1; a punch 3, assembled on the upper part of the cavity of the open receiving cavity 61; and a tip 2, assembled on the lower part of the cavity of the open receiving cavity 61, the tip 2 and the punch 3 being coaxial.

[0021] It should be noted that the riveting assembly device of this application is used to fix and lock one component to another component by means of stamping rivets 102. This application can be applied to assembling turbine disks, where the disk blades 101 are locked and fixed to the disk by means of stamping rivets 102 to form a disk rotor assembly 100. It can also be applied to other riveting assembly requirements of the same type of structure. The following embodiments are described in detail for the purpose of assembling turbine disks.

[0022] In this embodiment, the pressure-bearing part 7 is disposed on the base 1, and the base 1 is provided with a through hole 11. The pressure-bearing part 7 includes an open bushing 72, which is used to support the bottom of the wheel and the wheel blade 101. The upper and lower surfaces of the through hole 11 can be set to be inclination angle consistent with the axis of the open bushing 72 according to actual needs. The open bushing 72 is an unclosed bushing, that is, the side of the open bushing 72 is provided with a groove, which is provided along the axial direction of the open bushing 72 and penetrates the upper and lower bottom surfaces of the open bushing 72, so that the side of the open bushing 72 is not closed. This allows the wheel rotor assembly 100 to be directly installed on the open bushing 72 along the radial direction of the bushing 72 without disassembly. By moving the wheel rotor assembly 100 up and down, it is positioned between the open bushing 72 and the clamping part 4, which effectively improves the riveting assembly efficiency of the wheel rotor assembly 100 (the assembly to be riveted) and ultimately improves the riveting assembly efficiency. The open bushing 72 passes through the through hole 11 into the base 1 and is radially connected to the base 1 via bearings, sliding mechanisms, etc., to enable the rotation of the open bushing 72. This allows the open bushing 72 to be tilted onto the base 1, clamping and fixing the wheel disc at an angle, ensuring the rivet 102 is in a vertical position. This facilitates the stamping and riveting of the rivet 102 by pressing down with an external device such as a press. It should be noted that the angle of this tilt is determined according to actual needs; of course, there are also cases where tilting is not required.

[0023] For example, the open bushing 72 is connected to the base 1 via a rotating connection mechanism, allowing the open bushing 72 to rotate relative to the base 1. The rotating connection mechanism can be a bearing or a sliding bushing. When the open bushing 72 is radially connected to the base 1 via a bearing, the rotating connection mechanism includes at least one rolling bearing. Preferably, the rotating connection mechanism includes two angular contact ball bearings, installed back-to-back in the through hole 11 of the base 1, to simultaneously withstand radial force and bidirectional axial force, thereby ensuring that the open bushing 72 can still maintain its integrity under riveting pressure. It maintains extremely high rotational accuracy and rigidity; when the open bushing 72 is radially connected to the base 1 through a sliding manner, the rotational connection mechanism includes a sliding bushing, which is pressed into the through hole 11 of the base 1. An interference fit (light pressure fit) can be used between the bushing and the base 1 to ensure that the bushing will not loosen, thereby realizing the rotation of the open bushing 72 based on the base 1. It should be noted that this embodiment does not restrict the selection of bearings. The bearing can be selected according to whether it mainly bears radial force or axial force, and the magnitude of the radial force or axial force.

[0024] In this embodiment, the clamping part 4 is connected to the pressure bearing part 7 through the connector 5. The connector 5 can be a detachable connector such as a bolt, screw, or pin. Thus, the wheel rotor assembly 100 can be installed between the open bushing 72 and the clamping part 4 by disassembling the connector. The wheel rotor assembly 100 itself does not need to be disassembled during the installation process, and the clamping and locking degree of the wheel rotor assembly 100 can be controlled by adjusting the height of the connector 5.

[0025] It should be noted that the wheel has riveting holes, and rivets 102 are disposed in the riveting holes. The wheel blades 101 are riveted and fixed to the wheel by the rivets 102. In some embodiments, a washer 103 is sleeved on the top of the rivet 102. The washer 103 abuts against the top of the riveting hole. The blades are locked and fixed by stamping and riveting the top of the rivet 102 and pressing the washer 103. This process can also protect the surface of the wheel during the stamping and riveting process.

[0026] The rivet 102 assembly device of this application supports the bottom of the wheel and wheel blades 101 of the wheel rotor assembly 100 through the open bushing 72 on the base 1, and then clamps and limits the top of the wheel and wheel blades 101 through the clamping part 4. The clamping part 4 can be connected to the pressure bearing part 7 through the connecting part 5, and the clamping and locking degree of the wheel rotor assembly 100 can be controlled by adjusting the height of the connecting part 5. The open bushing 72 passes through the base 1 through the through hole 11 and is radially connected to the base 1 through the bearing, sliding and other means to realize the rotation of the open bushing 72, so that the tilt angle between the pressure bearing part 7 and the horizontal line is equal to the axial tilt angle of the rotor blade. After the different rivets 102 are adjusted to a vertical state in sequence, the riveting assembly is completed by the cooperation of the punch 3 and the center 2. The angle between the axis of the open bushing 72 and the axis of the base 1 is equal to the angle between the axis of the rivet 102 and the axis of the wheel. The support part 6 is connected to the base 1 and is used to support the rivet 102. The support part 6 is provided with an open receiving cavity 61. The direction of the open receiving cavity 61 is close to the side of the open bushing 72. A punch 3 is provided on the upper part of the cavity of the open receiving cavity 61, and a tip 2 is provided on the lower part of the cavity of the open receiving cavity 61. The tip 2 and the punch are coaxially arranged. When the angle of the wheel rotor assembly 100 is adjusted so that the rivet 102, the tip 2, and the punch 3 are on the same axis and the wheel rotor assembly 100 is pressed and fixed, the tip 2 and the punch can respectively abut and limit the upper and lower ends of the rivet 102. The tip 2 presses against the bottom end of the rivet 102 to limit the rivet 102 axially, while the punch 3 abuts against the top end of the rivet 102 and can punch the rivet 102 to complete the rivet 102 riveting, locking the wheel blade 101 onto the wheel. This effectively improves the efficiency of the riveting process, and has universality. The overall structure of the device is more streamlined, the manufacturing cost is low, and it is conducive to application and promotion.

[0027] It is understood that the open receiving cavity 61 on the support part 6 can provide redundant space between the wheel and the wheel blade 101 rotating to the tip 2 and the punch 3, so that the wheel and the wheel blade 101 can enter the open receiving cavity 61. The upper and lower parts of the open receiving cavity 61 are respectively provided with the punch 3 and the tip 2. The tip 2 can be other support components, and the punch 3 can be other clamping parts. As long as the support components can tighten the bottom end of the rivet 102 and the clamping parts can abut the top end of the rivet 102 and punch the rivet 102 to complete the riveting, this embodiment does not limit the specific type of the punch 3 and the tip 2.

[0028] Preferably, the pressure-bearing part 7 further includes a wing plate 71, which is fixed to the radial direction of the outer surface of the open bushing 72. The wing plate 71 is connected to the pressing part 4 through the connector 5. The wing plate 71 can be fixed to the radial direction of the outer surface of the open bushing 72 by welding or by integral casting with the open bushing 72. This embodiment does not limit this.

[0029] Furthermore, the clamping part 4 includes a pressure plate 42 and a bushing 41. The pressure plate 42 is fixed in the radial direction on the outer surface of the bushing 41. The bushing 41 and the open bushing 72 are coaxial. The lower surface of the pressure plate 42 is flush with the lower surface of the bushing 41, and the upper surface of the open bushing 72 is higher than or flush with the upper surface of the wing plate 71. This enables the bottom of the disc and disc blades 101 of the disc rotor assembly 100 to be supported by the open bushing 72 or by the open bushing 72 and the wing plate 71. The top of the disc and disc blades 101 are then clamped and limited by the bushing 41 and the pressure plate 42 in the clamping part 4. It should be noted that by making the upper surface of the open bushing 72 higher than or flush with the upper surface of the wing plate 71, the open bushing 72 can support the center part of the rotor assembly 100, ensuring the stability of the rotor assembly 100 during the riveting assembly process. Furthermore, the lower surface of the pressure plate 42 is flush with the lower surface of the bushing 41, ensuring that the clamping part 4 contacts the rotor assembly 100 (the assembly to be riveted) with the maximum area, making the corresponding clamping force distribution more uniform. This further avoids the rotor assembly 100 from moving or shaking under pressure during the riveting assembly process, thus improving the assembly accuracy. The bushing 41 can be connected to the open bushing 72 via the pressure plate 42, the connector 5 and the blade 71, and the clamping and locking degree of the wheel rotor assembly 100 can be controlled by adjusting the height of the connector 5. In addition, the tilt angle of the pressure plate 42 is consistent with the axial tilt angle of the blade. The pressure plate 42 can be fixed to the radial direction of the outer surface of the bushing 41 by welding, or it can be fixed to the radial direction of the outer surface of the open bushing 72 by integral casting with the bushing 41. This embodiment does not limit this.

[0030] Understandably, when the open bushing 72 and / or the wing plate 71 support the bottom of the disc and disc blades 101, the bushing 41 and / or the pressure plate 42 work together to press and limit the top of the disc and disc blades 101. The open bushing 72 is also coaxially arranged with the bushing 41. The open bushing 72, in conjunction with the bushing 41, can stably clamp and limit the top and bottom of the disc and disc blades 1011, preventing the disc rotor assembly 100 from easily shifting. This is beneficial to improving the efficiency and quality of stamping and riveting, and ensures that the pressing part 4 and the bearing part 7 contact the rotor assembly 100 with the maximum area, making the corresponding pressing force distribution more uniform and improving the assembly accuracy.

[0031] Furthermore, the number of wing plates 71 and pressure plates 42 is the same, and the wing plates 71 and pressure plates 42 in the same radial direction are connected by a connector 5, thereby adjusting the height of the connector 5 to achieve the degree of clamping and locking of the wheel rotor assembly 100.

[0032] Preferably, the support part 6 is slidably connected to the base 1.

[0033] Since the radial distance between the rivets 102 and the axis of the disc blades 101 differs in different models of disc rotors, this application adapts to different models of disc rotors so that the radial distance between the rivets 102 and the axis of the disc blades 101 in different disc rotors can be adapted by the sliding of the support part 6 relative to the base 1. This ensures that the rivets 102 in different models of disc rotors can be on the same axis as the punch 3 and the tip 2 of this device. Therefore, the support part 6 is slidably connected to the base 1 to assemble different models of disc rotors.

[0034] To achieve a sliding connection between the support part 6 and the base 1, the support part 6 and the base 1 can be connected by a linear guide mechanism, allowing the support part 6 to slide relative to the base 1 along a preset linear trajectory. Further, the linear guide mechanism includes a first guide rail component and a second guide rail component that cooperate with each other, one of which is disposed on the base 1 and the other on the support part 6. It should be noted that the first guide rail component can be a linear guide rail, mounted on the upper surface of the base 1 by screws, and the second guide rail component can be a slider, fixed to the bottom surface of the support part 6 by screws. Thus, the first and second guide rail components allow the support part 6 to slide relative to the base 1 along a preset linear trajectory. Furthermore, the riveting assembly device also includes a displacement indicating mechanism and a locking mechanism. The displacement indicating mechanism is disposed on the base 1 and / or the support 6, and the locking mechanism is disposed on the base 1 and / or the support 6. Operating the locking mechanism can generate a locking force to suppress the relative movement between the support 6 and the base 1. For example, a threaded through hole 11 can be machined on the support 6, with the axis of the through hole 11 perpendicularly pointing to the slide rail or guide rail of the base 1. A locking handle is screwed into the threaded hole. When the handle is tightened, the end of the handle directly presses against the surface of the guide rail, and locking is achieved through friction. The displacement indicating mechanism and the locking mechanism ensure the accuracy and reliability of the sliding between the support 6 and the base 1. The displacement indicating mechanism can be a measuring scale structure or a mechanical scale and vernier structure. For example, a long strip scale can be connected by screws or fixedly installed on the side (or upper surface) of the base 1 by inlay. A vernier with an observation window and finer scale can be fixedly installed at the corresponding position of the support 6 and the observation window can be aligned with the scale of the scale to accurately measure the radial displacement of the support 6 relative to the base 1.

[0035] Preferably, both the punch 3 and the tip 2 can move axially.

[0036] It should be noted that the axial movement methods include sliding, threaded pair movement, etc.; preferably, the center 2 is threadedly connected to the support part 6 for threaded pair movement. The height of the center 2 can be changed by turning the center 2, and then the center 2 is pressed against the bottom end of the support rivet 102 to play a fixed and limiting role. The threaded pair movement method determines that the movement of the center 2 is precise and controllable, which makes it easy for the operator to accurately adjust the ejection height of the center 2 to adapt to different specifications of rivets 102 and rotor assemblies, ensuring that the support position is just right; while the punch 3 is set to be able to slide up and down. Therefore, the punch 3 can abut against the top of the rivet 102, and then the rivet 102 can be stamped by external press or other equipment in conjunction with the punch 3 to complete the riveting. Therefore, the punch 3 can play an effective guiding and high-precision stamping positioning role.

[0037] like Figure 2 As shown, the support part 6 includes a first limiting part 63, a connecting part 64, and a second limiting part 65. The first limiting part 63 is connected to the top end of the support column 62. One end of the first limiting part 63 is connected to the first end of the second limiting part 65 through the connecting part 64. The first limiting part 63, the connecting part 64, and the second limiting part 65 enclose the opening receiving cavity 61. A limiting screw hole is provided on the first limiting part 63, so that the tip 2 can move axially through the threaded drive. A limiting through hole is provided on the second limiting part 17, and the punch 3 passes through the limiting through hole to achieve its rapid axial movement. The limiting through hole and the limiting screw hole are vertically corresponding and opposite to each other in the vertical direction. The limiting screw hole on the first limiting part 63 and the limiting through hole on the second limiting part 65 are vertically opposite to each other, specifically arranged coaxially. This allows the center 2 and the punch 3 to abut against the bottom and top of the rivet 102 respectively, achieving precise positioning and facilitating fast and efficient stamping and riveting, effectively improving the efficiency and quality of riveting.

[0038] Furthermore, the limiting screw hole is machined with an internal thread, and the head of the tip 2 passes upward through the limiting screw hole. A support component is provided at the tail of the tip 2, which abuts against the bottom end of the support rivet 102. The outer wall of the tip 2 is provided with an external thread matching the internal thread. A gripping part is provided at the tail of the tip 2. It can be understood that by providing a gripping part at the tail of the tip 2, the tip 2 can be screwed to adjust its height, allowing the support component of the tip 2 to smoothly press against the bottom end of the support rivet 102. This operation is very convenient and helps improve the efficiency of riveting. Moreover, the gripping part can be a hexagonal head structure, which can be easily used with conventional tools to screw the tip 2, helping to reduce the labor intensity of manual operation.

[0039] Furthermore, the support column 62 is slidably connected to the base 1 to achieve a sliding connection between the support part 6 and the base 1, thereby adapting to different models of turbine rotors. This ensures that the rivets 102 of different models of turbine rotors can be aligned with the punch 3 and the tip 2 of this device via the sliding of the support part. To achieve the sliding connection between the support column 62 and the base 1, the support column 62 is connected to the base 1 via a straight-line guide mechanism, allowing the support part 6 to slide relative to the base 1 along a preset straight-line trajectory. Further, the straight-line guide mechanism includes a first guide rail component and a second guide rail component that cooperate with each other. The first guide rail component is disposed on the base 1, and the second guide rail component is disposed on the support column 62. The first guide rail component can be a linear guide rail, mounted on the upper surface of the base 1 by screws. The second guide rail component can be a slider, fixed to the bottom surface of the support column 62 by screws. Thus, the first and second guide rail components allow the support part 6 to slide relative to the base 1 along a preset straight-line trajectory.

[0040] Preferably, such as Figure 1 and 2 As shown, a limiting platform 32 is provided at the tail of the punch 3, and the diameter of the limiting platform 32 is larger than the diameter of the limiting through hole. It can be understood that by providing the limiting platform 32 at the tail of the punch 3, and with the diameter of the limiting platform 32 being larger than the diameter of the limiting through hole, when the punch 3 is inserted alone into the limiting through hole, the limiting platform 32 can limit the movement of the punch 3. In addition, the limiting platform 32 can also cooperate with an external press to perform the punching action, thereby achieving precise control of the punching force.

[0041] Furthermore, such as Figure 4As shown, the punch head 31 is located at the end of the punch 3 near the opening receiving cavity 61. The punch head 31 has a preset shape and is also used to punch the tip of the rivet 102 into the preset shape. For example, the punch head 31 is provided with a recess, and a point 301 is provided at the center of the recess. The recess is coaxial with the punch 3, and the point 301 is located at the axis of the punch 3. The point is used to control the plastic deformation of the tip of the rivet 102 from the center position to the surrounding area during the punching process. The tip of the rivet 102 after riveting... The height between the rivet and the wheel is equal to the height 302 of the recess. The diameter of the top of the rivet 102 after riveting is not greater than the diameter 303 of the recess. That is, in order to adapt to the preset shape requirements of the top of the rivet 102 after upsetting and riveting during the assembly process, the punch head 31 in this embodiment has a preset shape. For example, a mold can be made according to the shape of the rivet 102 top after being deformed by punching the top of the rivet 102 through the punch head 31, and then the head of the punch 3 is made into the preset shape according to the mold. Thus, in the specific rivet assembly process, under the punching, the punch 3 shapes the head of the rivet 102 to the preset shape. During the punching process, the punch tip 301 plays a centering role, controlling the plastic deformation of the rivet 102 head from the center position to the surrounding area. The height 302 of the punch recess can control the thickness of the top of the rivet 102 after upsetting, and the diameter 303 of the punch recess can constrain the diameter of the top of the rivet 202 after upsetting.

[0042] Preferably, such as Figure 3 As shown, the pressure bearing part 7 rotates around the axis of the open bushing 72 through the through hole 11, thereby adjusting the angle of the wheel rotor assembly 100 so that the rivet 102, the tip 2 and the punch 3 are on the same axis, so that the tilt angle of the pressure plate 42 is consistent with the axial tilt angle of the blade, and the rivet 102 is in a vertical state and is on the same axis as the head of the tip 2 and the head of the punch 31.

[0043] Preferably, the open bushing 72 and the open receiving cavity 61 form an assembly space, and the center 2 and the punch 3 cooperate to complete the riveting assembly. It should be noted that the lower surface of the upper part of the cavity 61 is equal to or higher than the lower surface of the bushing 41, and the upper surface of the lower part of the cavity 61 is equal to or lower than the upper surface of the open bushing 72. That is, the first limiting part 63, the connecting part 64, and the second limiting part 65 constitute the open receiving cavity 61, and the open bushing 72 and the open receiving cavity 61 form an assembly space. The lower surface of the second limiting part 65 is equal to or higher than the lower surface of the bushing 41, and the upper surface of the first limiting part 63 is equal to or lower than the upper surface of the open bushing 72, so that the components to be assembled can be smoothly accommodated without interference.

[0044] The riveting assembly device of this application supports the bottom of the wheel and blades of the wheel rotor assembly through a pressure-bearing part on the base, and then clamps and limits the top of the wheel and blades through a clamping part. The clamping part can be connected to the pressure-bearing part through a connector, and the wheel rotor assembly can be quickly installed by disassembling the connector. The wheel rotor assembly itself can be fixed and riveted without disassembly, which can effectively improve the efficiency of riveting assembly. After the wheel rotor assembly is clamped and fixed, the top and bottom ends of the rivet are abutted and limited by the center and the punch, and the rivet is pressed by the punch to complete the rivet fixing, locking the wheel blades to the wheel. This effectively improves the efficiency and accuracy of riveting assembly, and the overall structure of the device is more streamlined, the manufacturing cost is effectively controlled, and it is conducive to application and promotion.

[0045] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make various improvements, modifications, or variations without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the utility model concept and technical solution to other situations without modification, should all be considered as protected by this application.

Claims

1. A riveting assembly device, characterized in that, include: The base has through holes; The pressure-bearing part includes an open bushing, which passes through the base through the through hole; A clamping part, which is connected to the pressure-bearing part via a connector; The support portion is provided with an open receiving cavity, the opening direction of which is close to the side of the open bushing, and the support portion is connected to the base; A punch is assembled on the upper part of the opening receiving cavity; The tip is assembled at the lower part of the opening receiving cavity, and the tip and the punch are coaxial.

2. The riveting assembly device according to claim 1, characterized in that, The pressure-bearing part also includes a wing plate, which is fixed to the radial direction of the outer surface of the open bushing.

3. The riveting assembly device according to claim 2, characterized in that, The clamping part includes a pressure plate and a bushing. The pressure plate is fixed in the radial direction on the outer surface of the bushing, and the bushing is coaxial with the open bushing.

4. The riveting assembly device according to claim 3, characterized in that, The number of wing plates and pressure plates is the same, and the wing plates and pressure plates in the same radial direction are connected by the connector.

5. The riveting assembly device according to claim 1, characterized in that, The support portion is slidably connected to the base.

6. The riveting assembly device according to claim 1, characterized in that, Both the punch and the tip can move axially.

7. The riveting assembly device according to claim 1, characterized in that, The head of the punch has a recess, and the center of the recess has a pointed point. The recess is coaxial with the punch, and the pointed point is located at the axis of the punch.

8. The riveting assembly device according to claim 7, characterized in that, The head of the punch is located at the end of the punch that is close to the opening receiving cavity.

9. The riveting assembly device according to claim 1, characterized in that, The pressure-bearing part rotates around the axis of the open bushing through the through hole.

10. The riveting assembly device according to any one of claims 1-9, characterized in that, The open bushing and the open receiving cavity form an assembly space, and the center and the punch cooperate to complete the riveting assembly.

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