Universal pressure riveting tool and pressure riveting device

Abstract

The invention relates to the technical field of rivet pressing devices, and discloses a universal rivet pressing tool and a rivet pressing device.The universal rivet pressing tool comprises a rack and a vibration adjusting frame capable of moving on the rack in a double-axis mode, and an elastic reciprocating driving part is installed on the vibration adjusting frame; a vibration riveting frame capable of synchronously moving up and down and left and right in a reciprocating mode and a rotatable spinning shaft are installed on the elastic reciprocating driving component in a transmission mode, the spinning shaft is rotatably installed on the vibration riveting frame, and the up-down and left-right reciprocating frequency and the reciprocating stroke of the vibration riveting frame are periodically and cyclically changed. An execution frame is arranged below the rivet vibrating frame, a set of pressure applying push rods are installed between the rivet vibrating frame and the execution frame, a first linear transmission module is installed on the execution frame, and a conversion frame is installed on the first linear transmission module in a transmission mode. According to the method, dynamic parameter adjustment is accurate to adapt to the material deformation rule, the press riveting tightness is improved, the risk of crushing or infirm riveting is reduced, and the press riveting quality and the process adaptability are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting devices, and more specifically, the present invention relates to a general riveting tooling and a riveting device. Background Art

[0002] In the prior art, a patent document with the publication number CN110238341A discloses a rotary riveting mechanism and a hot-sealing riveting press, including: a conveying and rotating device and a rotary riveting and pressing device. The rotary riveting and pressing device is arranged at a peripheral position of the conveying and rotating device. The rotary riveting and pressing device includes a rotary feeding component, a rotary main driving component, a lifting and pressing component, and a longitudinal rotary riveting component. The rotary feeding component is used to drive the cap to perform a rotary motion. The rotary riveting mechanism in the above device has a simple and compact structure and a high degree of automation, and can automatically complete the rotary riveting operation of the cap, which can reduce labor costs and manual misoperations. However, the above riveting device has the following technical problems when in use: The existing device is not convenient to use the dynamic vibration pressing and rotary riveting technology to improve the riveting tightness and riveting effect of the riveting device. The specifications of the pressing head are single, the versatility is poor, the degree of automation is insufficient, and the material suction and material transfer rely on manual labor; Based on this, the present invention provides a general riveting tooling and a riveting device to solve the technical problems raised in the above background art. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a general riveting tooling and a riveting device. The dynamic parameters of the present invention are adjusted precisely to adapt to the material deformation law, the riveting tightness is improved, the risk of crushing or insecure riveting is reduced, and the riveting quality and process adaptability are significantly improved.

[0004] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention innovatively designs a cooperation mechanism between an elastic reciprocating driving component and a vibration riveting frame: through the alternating meshing of a large-angle sector gear, a small-angle sector gear and a passive gear, combined with the energy compensation of a energy storage torsion spring, the periodic cyclic change of the reciprocating frequency and stroke of the vibration riveting frame up and down and left and right is realized. At the same time, the rotary shaft drives the upper pressing head to rotate through the friction lines of the transmission pressure plate and the driven pressure plate, and cooperates with the auxiliary vibration of the vibrator, so that the contact stress distribution between the rivet and the workpiece is more uniform, and the plastic deformation of the material is more sufficient. Compared with the problems of "insufficient pre-pressing and easy deviation" or "insufficient fine-pressing time and weak bonding force" caused by the fixed frequency and stroke of the traditional riveting device, the dynamic parameter adjustment of the present invention precisely adapts to the material deformation law, the riveting tightness is improved, the risk of crushing or insecure riveting is reduced, and the riveting quality and process adaptability are significantly improved.

[0005] 2. The present invention realizes flexible adaptation for multi - specification riveting through the linkage design of the conversion frame and the driven frame. Multiple positioning rotary rings are regularly distributed on the conversion frame. Different - specification upper pressing heads are installed at the bottom of each T - shaped pressing shaft, and lower die heads with matching specifications are arranged at the corresponding positions on the driven frame. By driving the conversion frame to translate through the first linear drive module, the upper pressing head and the lower die head of the target specification can be quickly switched to be aligned. At the same time, the follow - up spring forms buffering and limiting for the T - shaped pressing shaft, and the synchronous pull column ensures the precise alignment of the upper and lower die heads.

[0006] 3. The present invention integrates a negative - pressure material suction component and an intelligent material transfer module: the negative - pressure main flow channel in the rotary pressing shaft is connected to the negative - pressure sub - flow channel of the T - shaped pressing shaft. A negative pressure is formed through a vacuum pump to adsorb the parts to be riveted. The air pressure probe monitors the adsorption force in real time to avoid part detachment. The material transfer frame is driven by the second linear drive module and cooperates with a quick clamp to achieve the quick clamping and precise conveying of the workpieces to be riveted. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic structural diagram of a general riveting tooling of the present invention; Figure 2 is a schematic structural diagram of the positioning slot and the second linear drive module of the present invention; Figure 3 is a schematic structural diagram of the vibration - adjusting frame and the conversion frame of the present invention; Figure 4 of the present invention Figure 3 is a partial enlarged structural diagram at A in; Figure 5 is a schematic structural diagram of the first reciprocating lead screw and the first linear drive module of the present invention; Figure 6 is a schematic structural diagram of the T - shaped pressing shaft and the follow - up spring of the present invention; Figure 7 is a schematic structural diagram of the vibration - riveting frame and the servo motor of the present invention; Figure 8 of the present invention Figure 7 is a partial enlarged structural diagram at B in; Figure 9 is a schematic structural diagram of the first reciprocating lead screw and the elastic pressure - relief part of the present invention; Figure 10 of the present invention Figure 9 is a partial enlarged structural diagram at C in.

[0008] In the figure: 1. Frame; 2. Vibration adjustment frame; 3. Riveting vibration frame; 4. Rotary shaft; 5. Execution frame; 6. First linear drive module; 7. Conversion frame; 8. Positioning rotary ring; 9. T-shaped pressing shaft; 10. Follow-up spring; 11. Upper pressing head; 12. Driven frame; 13. Synchronous pulling column; 14. Electric heating rod; 15. Lower die head; 16. Vibrator; 17. Biaxial drive platform; 18. Microcontroller; 19. Displacement sensor; 20. Active pulling seat; 21. Vertical vibration pressing frame; 22. Servo motor; 23. Hexagonal main shaft; 24. Hexagonal auxiliary shaft; 25. First reciprocating lead screw; 26. Elastic pressure relief part; 27. Second reciprocating lead screw; 28. Large sleeve shaft; 29. Small sleeve shaft; 30. Large angular spur gear; 31. Small angular spur gear; 32. Passive gear; 33. Energy storage torsion spring; 34. Longitudinal reciprocating frame; 35. Protection spring; 36. Wheel shaft; 37. Driven pressure plate; 38. Vacuum pump; 39. Material transfer frame; 40. Quick clamp; 41. Second linear drive module; 42. Positioning slot; 43. Insertion column; 44. Pressing push rod. Specific embodiments

[0009] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0010] As Figures 1 to 10 shown, the present invention provides a general riveting tooling and riveting device, including a frame 1 and a vibration adjustment frame 2 that can move biaxially on the frame 1; A biaxial drive platform 17 and a microcontroller 18 are installed on the frame 1, and the biaxial drive platform 17 is fixedly connected to the vibration adjustment frame 2; An elastic reciprocating drive component is installed on the vibration adjustment frame 2. A riveting vibration frame 3 that can reciprocate synchronously up and down and left and right and a rotatable rotary shaft 4 are drivingly installed on the elastic reciprocating drive component. The rotary shaft 4 is rotatably installed on the riveting vibration frame 3, and the up and down and left and right reciprocating frequencies and reciprocating strokes of the riveting vibration frame 3 change periodically in a cycle; A displacement sensor 19 is installed on the riveting vibration frame 3, and the data end of the displacement sensor 19 is data-connected to the microcontroller 18; The biaxial drive platform 17 can drive the vibration adjustment frame 2 to move biaxially on the frame 1 to achieve precise adjustment of the riveting position. The microcontroller 18 can monitor and control the frequencies and strokes of its up and down and left and right reciprocating motions in real time by receiving the displacement data of the riveting vibration frame 3 fed back by the displacement sensor 19, so as to meet the diverse requirements of different riveting processes for vibration frequencies and strokes; The vibration frame 2 is used as the core motion carrier, and realizes the two-dimensional movement of the X / Y axis through the dual-axis driving platform 17 on the frame 1, and works in coordination with the displacement sensor 19 installed on the vibration riveting frame 3: Before riveting, the microcontroller 18 adjusts the initial position of the vibration adjustment frame 2 through the dual-axis driving platform 17 according to the process parameters, so that the upper pressure head 11 is aligned with the riveting station; During riveting, the displacement sensor 19 collects the displacement data of the vibration riveting frame 3 in real time and feeds it back to the microcontroller 18. If the actual displacement is detected to be different from the preset parameters, the microcontroller 18 adjusts the speed of the servo motor 22 or the speed of the dual-axis drive platform 17 to correct the position of the vibration frame 2 or the output power of the driving component to ensure that the motion parameters meet the process requirements; In addition, the displacement sensor 19 can also identify abnormal working conditions, trigger shutdown protection to avoid equipment damage, and analyze the degree of wear of transmission components through long-term data comparison to provide a basis for preventive maintenance; An execution frame 5 is provided below the vibration riveting frame 3, and a group of pressure push rods 44 are installed between the vibration riveting frame 3 and the execution frame 5. A first linear transmission module 6 is installed on the execution frame 5, and a conversion frame 7 is installed on the first linear transmission module 6. A plurality of regularly distributed positioning rotary rings 8 are rotatably installed on the conversion frame 7. The inner wall of each positioning rotary ring 8 is provided with a T-shaped pressure shaft 9, and a follower spring 10 limited by the positioning rotary ring 8 is sleeved on the T-shaped pressure shaft 9; An upper pressing head 11 is installed at the bottom end of each T-shaped pressing shaft 9, a driven frame 12 is slidably installed on the frame 1 and at a position corresponding to the bottom of the conversion frame 7, a synchronous pulling column 13 slidably connected to the driven frame 12 is installed on the conversion frame 7, an electric heating rod 14 is installed on the driven frame 12 and at a position corresponding to each T-shaped pressing shaft 9, a lower die head 15 is installed at the top of each electric heating rod 14, the specifications of the multiple upper pressing heads 11 and the multiple lower die heads 15 are different, the electric heating rod 14 and the T-shaped pressing shaft 9 are integrated with heating blocks, and an exciter 16 is installed on the driven frame 12; A transmission pressure plate is fixedly installed at the bottom end of the spinning shaft 4, and a driven pressure plate 37 is provided at the top end of each T-shaped pressure shaft 9. The bottom surface of the transmission pressure plate and the top surface of the driven pressure plate 37 are fixedly provided with friction patterns. Before riveting, according to the specifications of the parts to be riveted, the first linear transmission module 6 can drive the conversion frame 7 to move, so that the upper pressing head 11 of different specifications is aligned with the position of the spinning shaft 4, and then adapt to different scenes or different specifications of riveting conditions; The specifications of each upper pressing head 11 correspond to the specifications of the lower die head 15 at the corresponding position; Moreover, the specifications and types of each upper pressing head 11 and each lower die head 15 can be customized according to actual needs, thereby meeting the universal requirements of the riveting tooling; The follower spring 10 can buffer and limit the T-shaped pressing shaft 9 to avoid excessive pressure during the riveting process to damage the parts. The synchronous pull column 13 makes the conversion frame 7 and the driven frame 12 work together. When the conversion frame 7 moves, the driven frame 12 slides accordingly to ensure that the upper pressure head 11 and the lower die head 15 are accurately aligned. The electric heating rod 14 and the heating block on the T-shaped pressing shaft 9 can preheat or heat the riveted parts, reduce the hardness of the material, and improve the efficiency and quality of the riveting. The vibrator 16 can generate vibration to assist the riveting process and make the parts more tightly combined. When the spinning shaft 4 is driven to rotate by the elastic synchronous toothed belt, the transmission pressure plate at its bottom and the driven pressure plate 37 at the top of the T-shaped pressure shaft 9 are in close contact through the friction lines, which can stably transmit the rotation torque to the T-shaped pressure shaft 9, driving the upper pressure head 11 to rotate synchronously. In the working process, when the spinning shaft 4 is driven by the elastic reciprocating driving component to move up and down, the transmission pressure plate and the driven pressure plate 37 always maintain surface contact, and the friction lines avoid slipping, ensuring that the upper pressure head 11 continues to rotate during the riveting process, so that the contact stress distribution between the rivet and the workpiece is more uniform; The elastic reciprocating drive component includes an active pull seat 20, a vertical vibration pressure frame 21, a servo motor 22 mounted on the vibration adjustment frame 2, a hexagonal main shaft 23 rotatably connected to the vibration adjustment frame 2, a hexagonal secondary shaft 24 and a first reciprocating screw rod 25; The active pull seat 20 and the vertical vibration pressure frame 21 are both slidably connected to the vibration adjustment frame 2, and an elastic pressure buffer 26 is installed between the active pull seat 20 and the vertical vibration pressure frame 21; The elastic pressure buffer 26 includes two T-shaped pull rods installed on the vertical vibration pressure frame 21, and the two T-shaped pull rods are slidably connected to the vertical vibration pressure frame 21. The positions above the two T-shaped pull rods and corresponding to the vertical vibration pressure frame 21 are sleeved with pressure buffer springs limited by the vertical vibration pressure frame 21; During the operation of the elastic reciprocating drive component, the elastic pressure buffer 26 can buffer the impact force between the active pull seat 20 and the vertical vibration pressure frame 21, reduce vibration and noise, and store and release energy through the elastic deformation of the spring to make the movement more stable; At the same time, the elastic pressure buffer 26 can be arranged to prevent the vertical vibration frame 21 from overloading the riveting material when it moves vertically. The output shaft end of the servo motor 22 is fixedly connected to the hexagonal main shaft 23. The second reciprocating screw rod 27, the large sleeve shaft 28 and the small sleeve shaft 29 are rotatably mounted on the vertical vibration and pressure frame 21. The large sleeve shaft 28 is driven by the hexagonal main shaft 23. An elastic synchronous toothed belt is installed between the large sleeve shaft 28 and the spinning shaft 4, and the hexagonal secondary shaft 24 is driven by the small sleeve shaft 29; The interior of the large sleeve shaft 28 is fixedly provided with a first hexagonal groove that is open at both ends and slidably connected to the hexagonal main shaft 23. The interior of the small sleeve shaft 29 is fixedly provided with a second hexagonal groove that is open at both ends and slidably connected to the hexagonal auxiliary shaft 24. The cross-sections of the hexagonal main shaft 23, the hexagonal auxiliary shaft 24, the first hexagonal groove, and the second hexagonal groove are all regular hexagons; A large angular sector gear 30 and a small angular sector gear 31 are respectively installed on the large sleeve shaft 28. Two symmetrically arranged energy storage and reset areas are provided on the large sleeve shaft 28 at positions corresponding to between the large angular sector gear 30 and the small angular sector gear 31. Two passive gears 32 are installed on the small sleeve shaft 29, and the two passive gears 32 are respectively meshed and connected to the large angular sector gear 30 and the small angular sector gear 31; The central angle corresponding to the large angular sector gear 30 is 180°, the central angle corresponding to the small angular sector gear 31 is 120°, the central angles corresponding to the two energy storage and reset areas are both 30°, the radii of the large angular sector gear 30 and the small angular sector gear 31 are the same, the radii of the two passive gears 32 are the same, and the radius of the large angular sector gear 30 is 8 times the radius of the passive gear 32; Both the first reciprocating lead screw 25 and the second reciprocating lead screw 27 are driven by the small sleeve shaft 29; There is a first belt in the transmission connection between the hexagonal auxiliary shaft 24 and the first reciprocating lead screw 25. A wheel shaft 36 is rotatably installed on the vertical vibration and pressing frame 21. There is a second belt in the transmission connection between the wheel shaft 36 and the small sleeve shaft 29. Conical gears are installed on both the wheel shaft 36 and the second reciprocating lead screw 27; Energy storage torsion springs 33 are provided at the rotational connection positions of the first reciprocating lead screw 25 and the tuning vibration frame 2 and at the rotational connection positions of the second reciprocating lead screw 27 and the vertical vibration and pressing frame 21. A longitudinal reciprocating frame 34 is installed on the second reciprocating lead screw 27 in a transmission manner. The vibration riveting frame 3 is slidably connected to the longitudinal reciprocating frame 34, and a protective spring 35 limited by the longitudinal reciprocating frame 34 is installed on the side of the vibration riveting frame 3; The servo motor 22 drives the hexagonal main shaft 23 to rotate, drives the large sleeve shaft 28 to rotate synchronously through the first hexagonal groove. The large sleeve shaft 28 can axially slide along the hexagonal main shaft 23 to maintain torque transmission. The large angular sector gear 30 and the small angular sector gear 31 on the large sleeve shaft 28 rotate with it and are respectively meshed with the passive gears 32 on the small sleeve shaft 29. When the large angular sector gear 30 is meshed with the passive gear 32, the passive gear 32 is driven at high speed and is transmitted to the second reciprocating lead screw 27 through the second belt, the wheel shaft 36, and the conical gear, driving the longitudinal reciprocating frame 34 to reciprocate at high speed and for a short stroke; When the small angular sector gear 31 is meshed with the passive gear 32, the rotational speed of the passive gear 32 decreases, and the second reciprocating lead screw 27 drives the longitudinal reciprocating frame 34 to change to reciprocate at low speed and for a long stroke; When the large sleeve shaft 28 rotates to the energy storage and reset area, the large angular sector gear 30 and the small angular sector gear 31 disengage from the passive gear 32, and the energy storage torsion spring 33 releases elastic potential energy to drive the passive gear 32 and the lead screw to reset in the reverse direction, completing the cycle; At the same time, the first reciprocating lead screw 25 synchronously controls the left and right reciprocating motion of the vibration riveting frame 3. Its rotational speed change logic is the same as that of the second reciprocating lead screw 27, and finally realizes the periodic change of the up and down, left and right reciprocating frequencies and strokes of the vibration riveting frame 3; This design adapts to the multi-stage riveting requirements through parameter dynamic adjustment; In the high-speed short-stroke stage, the pre-contact between the rivet and the workpiece can be quickly completed, reducing the time-consuming of the idle stroke; In the low-speed long-stroke stage, the pressing time is extended, so that the materials of the rivet and the workpiece are fully plastically deformed and combined more tightly. In the reset stage, the energy storage torsion spring 33 compensates for the energy loss, avoiding the motion lag caused by inertia and ensuring the smooth connection of each stage; Due to the fixed frequency and stroke of the traditional riveting device, problems such as insufficient pre-pressing leading to offset or insufficient fine-pressing time leading to weak bonding force are likely to occur; The above parameter dynamic adjustment conforms to the material deformation law, reduces the risks of crushing or insecure riveting, enhances the versatility of the tooling and extends the service life of the equipment; The protective spring 35 is installed between the vibration riveting frame 3 and the longitudinal reciprocating frame 34. When the vibration riveting frame 3 is driven by the first reciprocating lead screw 25 to move left and right, if a rigid collision occurs between it and the longitudinal reciprocating frame 34 due to sudden load changes such as rivet jamming or high-speed motion inertia, the protective spring 35 absorbs the instantaneous impact energy through compression or tension, avoiding the deformation or fracture of components such as the sliding track and connecting bolts of the vibration riveting frame 3 due to overload; The slow-pressure spring is installed between the active pull seat 20 and the vertical vibration pressing frame 21 through a T-shaped pull rod. When the servo motor 22 drives the active pull seat 20 to perform periodic reciprocating motion, the vertical vibration pressing frame 21 generates an instantaneous acceleration mutation due to the variable-speed transmission of the elastic reciprocating drive component. The slow-pressure spring absorbs the impact energy between the two through compression or rebound, avoiding tooth surface wear or fracture on the gear meshing surface due to instantaneous overload, and at the same time reducing the operation noise of the equipment; A negative pressure material suction component is arranged inside the rotation shaft 4.

[0011] The negative pressure material suction component includes a vacuum pump 38 installed on the vibration adjustment frame 2 and a negative pressure main flow channel opened inside the rotation shaft 4. The bottom end of the negative pressure main flow channel is open. The negative pressure end of the vacuum pump 38 is communicated with the negative pressure main flow channel through a vacuum tube. An air pressure probe electrically connected to the microcontroller 18 is installed on the vacuum tube. A negative pressure secondary flow channel adapted to communicate with the negative pressure main flow channel is fixedly opened inside the T-shaped pressing shaft 9, and the bottom end of the negative pressure secondary flow channel is communicated with the inner cavity of the upper pressing head 11.

[0012] The vacuum pump 38 is connected to the negative pressure main flow channel inside the rotary shaft 4 through a vacuum tube. A negative pressure is formed in the negative pressure main flow channel and the negative pressure sub-flow channel, sucking the parts to be riveted and pressed into the inner cavity of the upper pressure head 11, realizing automatic material suction. The air pressure probe is electrically connected to the microcontroller 18, and can monitor the air pressure in the vacuum tube in real time, ensuring the stability of the negative pressure adsorption force, avoiding the parts from falling off. The negative pressure material suction assembly realizes the automatic grasping and positioning of the parts, improves the automation degree and efficiency of the riveting and pressing operation, reduces manual operation, and lowers the labor intensity; It further includes a material transfer rack 39, a plurality of quick clamps 40, and a second linear drive module 41 installed on the frame 1. The second linear drive module 41 is in transmission connection with the material transfer rack 39. A set of positioning slots 42 are formed on the material transfer rack 39, and a plug post 43 adapted to the positioning slots 42 is installed on the bottom surface of each quick clamp 40.

[0013] The second linear drive module 41 drives the material transfer rack 39 to move, and can accurately convey the parts placed on the quick clamps 40 to the riveting and pressing position. The quick clamps 40 are matched with the positioning slots 42 on the material transfer rack 39 through the plug posts 43 on the bottom surface, realizing quick installation and positioning, facilitating the replacement of different specifications of clamps to adapt to the clamping requirements of different parts. The settings of the material transfer rack 39 and the quick clamps 40 improve the clamping and conveying efficiency of the parts to be riveted and pressed, reduce the auxiliary time, and enhance the overall production efficiency.

[0014] A general riveting and pressing device applies a general riveting and pressing tooling according to any one of the above.

[0015] The working principle and usage process of the present invention are as follows: During work, first, the second linear drive module 41 drives the material transfer rack 39 to convey the parts clamped on the quick clamps 40 to the riveting and pressing station. The first linear drive module 6 drives the conversion rack 7 to switch the upper pressure head 11 with the adapted specification to align with the lower die head 15, and the double-axis drive platform 17 adjusts the position of the vibration adjustment frame 2 to complete the initial positioning; Subsequently, the vacuum pump 38 sucks the parts to be riveted and pressed through the negative pressure main flow channel inside the rotary shaft 4 and the negative pressure sub-flow channel of the T-shaped pressing shaft 9. The heating block preheats the riveting and pressing parts, and the vibrator 16 is started to assist in vibration; During riveting and pressing execution, the servo motor 22 drives the hexagonal main shaft 23 to rotate. The large angular sector gear 30 on the large sleeve shaft 28 and the small angular sector gear 31 alternately mesh with the passive gear 32 of the small sleeve shaft 29, and cooperate with the energy storage torsion spring 33 to realize the periodic movement of the vibration riveting frame 3 with high-speed short-stroke pre-pressing, low-speed long-stroke fine-pressing, and energy storage reset. At the same time, the rotary shaft 4 drives the upper pressure head 11 to rotate through the friction lines of the transmission pressure plate and the driven pressure plate 37, optimizing the stress distribution; During the riveting process, the displacement sensor 19 feeds back the displacement data of the vibration riveting frame 3 to the microcontroller 18 in real time to dynamically adjust the motion parameters or trigger protection. After the riveting is completed, the vacuum pump 38 stops adsorption, and the material transfer rack 39 moves out the completed parts to enter the next cycle. This process realizes efficient, precise, and general riveting operations through dynamic parameter adjustment, multi-specification die adaptation, and automated material suction and transfer.

[0016] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0017] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A general riveting tooling, comprising a frame (1) and a vibration adjusting frame (2) that can move in two axes on the frame (1), characterized in that: An elastic reciprocating drive component is installed on the vibration adjustment frame (2). A riveting vibration frame (3) capable of synchronously reciprocating up and down and left and right and a rotatable rotation shaft (4) are installed on the elastic reciprocating drive component in a transmission manner. The rotation shaft (4) is rotatably installed on the riveting vibration frame (3). The reciprocating frequencies and reciprocating strokes of the riveting vibration frame (3) in the up and down and left and right directions change periodically in a cycle. An execution frame (5) is arranged below the riveting vibration frame (3), and a group of pressure application push rods (44) are installed between the riveting vibration frame (3) and the execution frame (5). A first linear transmission module (6) is installed on the execution frame (5). A conversion frame (7) is installed on the first linear transmission module (6) in a transmission manner. A plurality of regularly distributed positioning rotary rings (8) are rotatably installed on the conversion frame (7). A T-shaped pressing shaft (9) is arranged on the inner wall of each positioning rotary ring (8). A follower spring (10) limited by the positioning rotary ring (8) is sleeved on the T-shaped pressing shaft (9). An upper pressing head (11) is installed at the bottom end of each T-shaped pressing shaft (9). A driven frame (12) is slidably installed on the machine frame (1) at a position corresponding to the lower part of the conversion frame (7). A synchronous pulling column (13) slidably connected to the driven frame (12) is installed on the conversion frame (7). Electric heating rods (14) are installed on the driven frame (12) at positions corresponding to each T-shaped pressing shaft (9). A lower die head (15) is installed at the top end of each electric heating rod (14). The specifications of the plurality of upper pressing heads (11) and the plurality of lower die heads (15) are different. Heating blocks are integrated on both the electric heating rods (14) and the T-shaped pressing shafts (9). An exciter (16) is installed on the driven frame (12). A negative pressure material suction assembly is arranged in the rotation shaft (4).

2. The general riveting tooling according to claim 1, characterized in that: A double-axis drive platform (17) and a microcontroller (18) are installed on the machine frame (1). The double-axis drive platform (17) is fixedly connected to the vibration adjustment frame (2). A displacement sensor (19) is installed on the riveting vibration frame (3). The data end of the displacement sensor (19) is data-connected to the microcontroller (18).

3. The general riveting tooling according to claim 1, characterized in that: The elastic reciprocating drive component includes a driving pull seat (20), a vertical vibration pressing frame (21), a servo motor (22) installed on the vibration adjusting frame (2), a hexagonal main shaft (23) rotatably connected to the vibration adjusting frame (2), a hexagonal auxiliary shaft (24), and a first reciprocating lead screw (25). The driving pull seat (20) and the vertical vibration pressing frame (21) are both slidably connected to the vibration adjusting frame (2). An elastic pressure relief member (26) is installed between the driving pull seat (20) and the vertical vibration pressing frame (21). The output shaft end of the servo motor (22) is fixedly connected to the hexagonal main shaft (23). A second reciprocating lead screw (27), a large sleeve shaft (28), and a small sleeve shaft (29) are respectively rotatably installed on the vertical vibration pressing frame (21). The large sleeve shaft (28) is driven by the hexagonal main shaft (23). An elastic synchronous toothed belt is installed between the large sleeve shaft (28) and the rotation shaft (4). The hexagonal auxiliary shaft (24) is driven by the small sleeve shaft (29). A large angular sector gear (30) and a small angular sector gear (31) are respectively installed on the large sleeve shaft (28). Two symmetrically arranged energy storage and reset areas are arranged on the large sleeve shaft (28) at positions corresponding to between the large angular sector gear (30) and the small angular sector gear (31). Two driven gears (32) are installed on the small sleeve shaft (29). The two driven gears (32) are respectively meshed and connected to the large angular sector gear (30) and the small angular sector gear (31). The first reciprocating lead screw (25) and the second reciprocating lead screw (27) are both driven by the small sleeve shaft (29). Energy storage torsion springs (33) are arranged at the rotational connection of the first reciprocating lead screw (25) and the vibration adjusting frame (2) and at the rotational connection of the second reciprocating lead screw (27) and the vertical vibration pressing frame (21). A longitudinal reciprocating frame (34) is installed on the second reciprocating lead screw (27) in a transmission manner. The vibration riveting frame (3) is slidably connected to the longitudinal reciprocating frame (34). A protective spring (35) limited by the longitudinal reciprocating frame (34) is installed on the side of the vibration riveting frame (3).

4. The general riveting tooling according to claim 3, characterized in that: The central angle corresponding to the large angular sector gear (30) is 180°. The central angle corresponding to the small angular sector gear (31) is 120°. The central angles corresponding to the two energy storage and reset areas are both 30°. The large angular sector gear (30) and the small angular sector gear (31) have the same radius. The two driven gears (32) have the same radius. The radius of the large angular sector gear (30) is 7 to 10 times the radius of the driven gear (32).

5. The general riveting tooling according to claim 3, wherein: The large sleeve shaft (28) is provided with a first hexagonal groove with openings at both ends and slidably connected to the hexagonal main shaft (23). The small sleeve shaft (29) is provided with a second hexagonal groove with openings at both ends and slidably connected to the hexagonal secondary shaft (24). The cross-sections of the hexagonal main shaft (23), the hexagonal secondary shaft (24), the first hexagonal groove and the second hexagonal groove are all regular hexagons. A first belt is connected to the hexagonal secondary shaft (24) and the first reciprocating screw rod (25). A wheel shaft (36) is rotatably mounted on the vertical vibration and pressure frame (21). A second belt is connected to the wheel shaft (36) and the small sleeve shaft (29). Bevel gears are mounted on the wheel shaft (36) and the second reciprocating screw rod (27).

6. The general riveting tooling according to claim 3, characterized in that: The elastic pressure-relief member (26) comprises two T-shaped pull rods mounted on the vertical vibration pressure frame (21), the two T-shaped pull rods being slidably connected to the vertical vibration pressure frame (21), and pressure-relief springs limited by the vertical vibration pressure frame (21) being sleeved on the two T-shaped pull rods at positions corresponding to the top of the vertical vibration pressure frame (21).

7. The general riveting tooling according to claim 1, characterized in that: A transmission pressure plate is fixedly mounted on the bottom end of the spinning shaft (4), a driven pressure plate (37) is provided on the top end of each T-shaped pressure shaft (9), and friction patterns are fixedly provided on the bottom surface of the transmission pressure plate and the top surface of the driven pressure plate (37).

8. The general riveting tooling according to claim 1, wherein: The negative pressure suction component comprises a vacuum pump (38) mounted on a vibration adjustment frame (2) and a negative pressure main channel opened in a spinning shaft (4); the bottom end of the negative pressure main channel is open; the negative pressure end of the vacuum pump (38) is connected to the negative pressure main channel via a vacuum tube; an air pressure probe electrically connected to a microcontroller (18) is mounted on the vacuum tube; a negative pressure secondary channel adapted to be connected to the negative pressure main channel is fixedly opened inside the T-shaped pressing shaft (9); the bottom end of the negative pressure secondary channel is connected to the inner cavity of the upper pressing head (11).

9. A general riveting tooling according to claim 1, characterized in that: It also includes a material moving rack (39), a plurality of quick clamps (40) and a second linear transmission module (41) mounted on the frame (1), wherein the second linear transmission module (41) is in transmission connection with the material moving rack (39), a group of positioning slots (42) are provided on the material moving rack (39), and a plug post (43) adapted to the positioning slot (42) is installed on the bottom surface of each of the quick clamps (40).

10. A general riveting device, characterized in that, A universal riveting tool as described in any one of claims 1-9.

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