A fully automatic riveting device and riveting method for multi-dimensional transformation

Abstract

The present invention relates to a riveting technology, specifically a fully automatic riveting device and a riveting method with multi-dimensional transformation, including: a universal joint, the universal joint is installed on the mounting bracket, a riveting part is arranged on the universal joint, and a stud that can slide along the length direction is connected in the riveting part through a pneumatic part. By arranging a universal joint at the end of the riveting part, the flexible connection between the riveting part and the mounting bracket is realized through the universal joint in the present invention. This design enables the riveting part to be adaptively adjusted in multiple angles and directions. When there are local depressions or curved surface arcs on the surface of the workpiece and there is an inclined angle that is not perpendicular between the riveting part and the working surface of the workpiece, at the moment of contact when the riveting part performs riveting, the non-perpendicular extrusion force is generated. The two-dimensional elastic part deforms under the action of the extrusion force and cooperates with the universal joint, so that the placement angle of the riveting part relative to the working surface is automatically adjusted and finally remains perpendicular to the working surface.

Description

Technical Field

[0001] The present invention relates to a riveting technology, in particular to a fully automatic riveting device and a riveting method with multi-dimensional transformation. Background Art

[0002] A fully automatic riveting device is an automated equipment used in industrial production, mainly for fixing rivets on workpieces; it completes a series of operations such as inserting, pulling and fixing the rivets through an automated control system without manual intervention; this device usually includes a positioning system, a riveting device and a control system, and can precisely control parameters such as torque and tensile force during the riveting process to ensure the uniformity and high efficiency of the riveting quality. It is widely used in industries such as automotive, aviation, and electronics, suitable for workpieces of various materials and shapes, and can ensure the completion of riveting tasks under high-precision requirements.

[0003] A fully automatic riveting device with multi-dimensional transformation is a device integrating multi-dimensional adjustment and automated control technologies, specifically for riveting work in industrial production; it can not only complete the traditional functions of inserting and fixing rivets, but also, through a multi-dimensional motion control system, enable the device to be flexibly adjusted in multiple directions; this device is usually applicable to complex workpieces that require high precision and multi-angle positioning, and can automatically complete the riveting task, thereby improving production efficiency and product quality.

[0004] Although the fully automatic riveting device with multi-dimensional transformation in the current industrial field realizes multi-degree-of-freedom positioning in terms of spatial adjustment ability, and can adjust the spatial coordinates of the riveting head through a robotic arm or a slide rail system to align it with the basic position of the workpiece, when facing riveting workpieces with non-planar surfaces (such as curved surfaces, special-shaped structures or local concavities and convexities), there are still technical bottlenecks. Due to the geometric complexity of the workpiece surface, the actual working angle of the contact surface between the riveting head and the workpiece may have a slight inclination (usually a deviation of 0.5° - 3°) due to local deformation or assembly tolerance; this deviation will cause the axial force application direction during the riveting process to deviate from the preset ideal path, thereby leading to the problem of uneven stress on the rivets.

[0005] Specifically, when there is an angular deviation between the riveting head and the workpiece working surface, the rivet will undergo asymmetric deformation due to the action of the lateral component force during the plastic deformation stage; this not only causes uneven material flow in the neck of the rivet, forming a single-sided thin wall or local stress concentration, but also leads to microscopic gaps (usually 5 - 50 μm) between the rivet flange and the workpiece mating surface; in a dynamic load environment, such defects will significantly reduce the fatigue resistance of the connection structure, and even cause the rivet to loosen or fracture and fail; affecting the riveting quality of the rivet nut. Summary of the Invention

[0006] The object of the present invention is to provide a fully automatic riveting device with multi-dimensional transformation and a riveting method to solve the problems proposed in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A fully automatic riveting device with multi-dimensional transformation includes a transverse moving frame and a mounting frame. A second sliding member is slidably arranged on the transverse moving frame, and a two-dimensional elastic member is arranged between the second sliding member and the mounting frame;

[0009] An automatic riveting structure is arranged on the mounting frame, and the automatic riveting structure includes:

[0010] A universal connecting member, which is installed on the mounting frame. A riveting member is arranged on the universal connecting member, and a stud that can slide along the length direction is connected to the inside of the riveting member through a pneumatic member;

[0011] A driving member arranged on the universal connecting member and connected to the riveting member, and the driving member is used to drive the riveting member to rotate on the universal connecting member;

[0012] A limiting member arranged on the mounting frame for limiting or releasing the limiting state of the riveting member. When the limiting member is in the state of releasing the limit and the riveting member moves towards the working surface, the two-dimensional elastic member deforms under the action of the extrusion force and cooperates with the universal connecting member, so that the placement angle of the riveting member relative to the working surface is automatically adjusted and finally kept perpendicular to the working surface.

[0013] The fully automatic riveting device with multi-dimensional transformation as described above: The universal connecting member includes a universal seat installed on the mounting frame, a universal ball head movably clamped on the universal seat, a pneumatic rotating disc fixedly connected to the universal ball head, and a connecting pipe arranged on one side of the pneumatic rotating disc. A through hole is opened on the pneumatic rotating disc.

[0014] The fully automatic riveting device with multi-dimensional transformation as described above: The riveting member includes a housing mechanism arranged on the pneumatic rotating disc and a first gear fixed on the housing mechanism;

[0015] The housing mechanism includes a housing connected to one end of the pneumatic rotating disc, a first cavity opened inside the housing, a second cavity opened on the housing inside the first cavity, and a plugging column fixed on the inner wall of the second cavity near one end of the pneumatic rotating disc;

[0016] A slot hole communicating with the through hole is opened on the plugging column, and a piston ring is slidably arranged in the first cavity.

[0017] A fully automatic riveting device for multi-dimensional transformation as described above: The driving member includes a fixed seat mounted on the pneumatic rotating disc, a motor disposed on the fixed seat, and a second gear fixed on the output shaft of the motor;

[0018] The second gear meshes with the first gear to drive the first gear to rotate.

[0019] A fully automatic riveting device for multi-dimensional transformation as described above: The limiting member includes a fixed ring mounted on the mounting frame, a linkage member rotatable within the fixed ring, and a plurality of abutting rods annularly arrayed and inserted on the fixed ring;

[0020] The plurality of abutting rods are connected to the linkage member, and when the linkage member rotates, it is used to adjust the radial sliding of the plurality of abutting rods on the fixed ring.

[0021] A fully automatic riveting device for multi-dimensional transformation as described above: A rotation groove for the rotation of the linkage member is provided on the inner wall of the fixed ring, and a plurality of guide holes for the sliding of the abutting rods are annularly arrayed on the fixed ring;

[0022] A fitting groove communicating with the rotation groove is provided on the outer wall of one side of the fixed ring, and a rotating seat is fixed on the fixed ring at the fitting groove portion;

[0023] The linkage member includes a fourth gear rotatable within the rotation groove and a scroll pattern fixed on the fourth gear, and the scroll pattern is connected to the plurality of abutting rods.

[0024] A fully automatic riveting device for multi-dimensional transformation as described above: The transmission member includes two sets of symmetrically arranged coupling mechanisms and a plugging mechanism disposed between the two sets of coupling mechanisms;

[0025] The coupling mechanism includes a first connecting seat and a second connecting seat rotatably connected to the first connecting seat through a cross coupling. One of the first connecting seats is fixed on the second gear, and a rotating shaft is fixed on the other first connecting seat. The rotating shaft rotates on the rotating seat and a third gear is fixed above it. The third gear rotates within the fitting groove and meshes with the fourth gear.

[0026] A fully automatic riveting device for multi-dimensional transformation as described above: The plugging mechanism includes a sleeve, a connecting column inserted into the sleeve, a sliding groove opened on the connecting column, and a limiting rod fixed on the sleeve and sliding within the sliding groove;

[0027] One end of the connecting column is fixed to one of the second connecting seats, and one end of the sleeve is fixed to the other second connecting seat.

[0028] A fully automatic riveting device for multi-dimensional transformation as described above: A first slider and a second slider are slidably arranged on the transverse moving frame. The second slider includes a sliding seat and a U-shaped frame fixedly connected to the mounting frame. The U-shaped frame is connected to the sliding seat through a two-dimensional elastic member. An electromagnetic chuck is arranged on the first slider, and the electromagnetic chuck is in clamping fit with a clamping groove formed on the mounting frame.

[0029] A riveting method using a fully automatic riveting device for multi-dimensional transformation as described above, comprising the following steps:

[0030] Step 1: Through the action of the motor, the second gear drives the first gear to rotate, so that the stud inserted in the shell rotates synchronously. When the stud rotates, the riveting nut can be threadedly connected.

[0031] Step 2: When the motor drives the stud to tighten the nut, the fourth gear rotates, so that a plurality of abutting rods slide away from the fixed ring and lose the limit on the shell.

[0032] Step 3: The stud inserts the riveting nut into the hole position of the riveting workpiece, injects air into the first cavity through the connecting pipe, drives the sealing piston to act in the second cavity, and makes the stud lift vertically along the shell.

[0033] Step 4: When the stud is inclined to the riveting working surface, the riveting part moves towards the working surface. The two-dimensional elastic member deforms under the action of the extrusion force and cooperates with the universal joint, so that the placement angle of the riveting part relative to the working surface is automatically adjusted and finally kept perpendicular to the working surface.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] By arranging a universal joint at the end of the riveting part, a flexible connection is realized between the riveting part and the mounting frame through the universal joint. This design enables the riveting part to be adaptively adjusted in multiple angles and directions. When there are local depressions or curved surface arcs on the workpiece surface and the inclination angle between the riveting part and the working surface of the workpiece is not perpendicular, at the moment of contact when the riveting part performs riveting, a non-perpendicular extrusion force is generated. The two-dimensional elastic member deforms under the action of the extrusion force and cooperates with the universal joint, so that the placement angle of the riveting part relative to the working surface is automatically adjusted and finally kept perpendicular to the working surface.

[0036] Specifically, the motor drives the stud to rotate. When the stud is connected to the rivet nut, the universal connector not only serves as a connection, but also plays a key role in adjusting the inclination angle of the rivet. When there is an inclination between the rivet head and the rivet working surface, the universal connector cooperates with the two-dimensional elastic part to effectively adjust to ensure that the rivet head always remains perpendicular to the workpiece surface, thereby avoiding deviations caused by inclination. The key to this design is that the universal connector cooperates with the two-dimensional elastic part to automatically adjust and compensate for the error caused by inclination during the working process of the rivet. When the rivet is performing a riveting operation, the vertical relationship between the rivet head and the workpiece is maintained, avoiding lateral forces caused by inclination. This design enables the rivet to effectively avoid unnecessary lateral forces when it is subjected to force, which is crucial to ensuring the forming effect of the rivet nut. In this way, the rivet can complete the riveting task efficiently and accurately on various workpieces without being affected by inclination. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of a fully automatic riveting device with multi-dimensional transformation.

[0038] Figure 2 This is a structural diagram of another orientation of the fully automatic riveting device with multi-dimensional transformation.

[0039] Figure 3 The diagram is a structural diagram of the automatic riveting structure in a fully automatic riveting device with multi-dimensional transformation.

[0040] Figure 4 This is a structural schematic diagram of another orientation of the automatic riveting structure in the fully automatic riveting device with multi-dimensional transformation.

[0041] Figure 5 This is a schematic diagram of the structure of the driving parts in a fully automatic riveting device with multi-dimensional transformation.

[0042] Figure 6 This is a schematic diagram of the internal structure of the rivet in a fully automatic riveting device with multi-dimensional transformation.

[0043] Figure 7 This is a structural diagram of the universal connector in a fully automatic riveting device with multi-dimensional transformation.

[0044] Figure 8 This is a schematic diagram of the structure of the pneumatic parts in the fully automatic riveting device with multi-dimensional transformation.

[0045] Figure 9 This is a schematic diagram of the structure of the limiter in the fully automatic riveting device with multi-dimensional transformation.

[0046] Figure 10 Schematic diagram of the separation state of the limiting parts in the fully automatic riveting device with multi-dimensional transformation.

[0047] Figure 11 Schematic diagram of the connection state between the driving part and the transmission part in the fully automatic riveting device for multi-dimensional transformation.

[0048] Figure 12 Exploded view of the structure of the transmission part in the fully automatic riveting device for multi-dimensional transformation.

[0049] Figure 13 Schematic diagram of the connection state between the mounting frame, the first sliding part and the second sliding part in the fully automatic riveting device for multi-dimensional transformation.

[0050] Figure 14 Schematic diagram of the connection state between the sliding seat and the two-dimensional elastic part in the fully automatic riveting device for multi-dimensional transformation.

[0051] Figure 15 Schematic diagram of the separated state between the sliding seat and the two-dimensional elastic part in the fully automatic riveting device for multi-dimensional transformation.

[0052] In the figure: 1. Transverse moving frame; 101. Linear driver; 102. Guide rail; 103. First sliding part; 1031. Electromagnetic chuck; 1032. Card slot; 104. Second sliding part; 1041. Sliding seat; 1042. Sliding bearing plate; 1043. U-shaped frame; 1044. First support column; 1045. Second support column; 1046. First cylindrical spring; 1047. Second cylindrical spring; 2. Mounting frame; 3. Universal joint seat; 4. Universal ball head; 5. Pneumatic rotating disk; 6. Connecting pipe; 7. Through hole; 8. Housing; 9. First gear; 10. First cavity; 11. Second cavity; 12. Insertion column; 13. Piston ring; 14. Spring; 15. Sealing piston; 16. Piston rod; 17. Stud; 18. Fixed seat; 19. Motor; 20. Second gear; 21. First connecting seat; 22. Cross coupling; 23. Second connecting seat; 24. Connecting column; 25. Chute; 26. Sleeve; 27. Limiting rod; 28. Third gear; 29. Transmission shaft; 30. Fixed ring; 31. Rotating groove; 32. Guide hole; 33. Fitting groove; 34. Rotating seat; 35. Contact rod; 36. Fourth gear; 37. Scroll pattern. Detailed implementation manners

[0053] 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 of the embodiments.

[0054] Please refer to Figures 1 - 5, in the embodiment of the present invention, a fully automatic riveting device for multi-dimensional transformation includes a transverse moving frame 1, a vertical driving member for driving the vertical movement of the transverse moving frame 1, and a mounting frame 2. A second sliding member 104 is slidably arranged on the transverse moving frame 1. A two-dimensional elastic member is arranged between the second sliding member 104 and the mounting frame 2. An automatic riveting structure is arranged on the mounting frame 2, and the automatic riveting structure includes:

[0055] A universal connecting member, the universal connecting member is installed on the mounting frame 2, a riveting member is arranged on the universal connecting member, and a stud 17 that can slide along the length direction is connected to the inside of the riveting member through a pneumatic member;

[0056] A driving member arranged on the universal connecting member and connected to the riveting member, the driving member is used to drive the riveting member to rotate on the universal connecting member;

[0057] A limiting member arranged on the mounting frame 2 for limiting or releasing the limiting state of the riveting member. When the limiting member is in the state of releasing the limit, when the riveting member moves towards the working surface, the two-dimensional elastic member deforms under the action of the extrusion force and cooperates with the universal connecting member, so that the placement angle of the riveting member relative to the working surface is automatically adjusted and finally remains perpendicular to the working surface.

[0058] Among them, please refer to Figure 1 、 Figure 2 、 Figures 13 - 15 , a first sliding member 103 and a second sliding member 104 are slidably arranged on the transverse moving frame 1. The first sliding member 103 is slidably connected to a guide rail 102 arranged on the transverse moving frame 1. In order to eliminate the misaligned movement of the first sliding member 103 relative to the mounting frame 2 when the mounting frame 2 moves or vibrates, therefore, in the actual use process, the guide rail 102 can be set as a transverse driving member, and the second sliding member 104 is connected to a linear driver 101 installed on the transverse moving frame 1.

[0059] The second sliding member 104 includes a sliding seat 1041 and a U-shaped frame 1043 fixedly connected to the mounting frame 2. The U-shaped frame 1043 is connected to the sliding seat 1041 through a two-dimensional elastic member. An electromagnetic chuck 1031 is arranged on the first sliding member 103, and the electromagnetic chuck 1031 is in snap-fit connection with a card slot 1032 formed on the mounting frame 2. The electromagnetic chuck 1031 can move towards the card slot 1032 when powered on, so as to snap into the card slot 1032 to ensure the overall stability of the mounting frame 2 when the riveting action is not executed.

[0060] Among them, the two-dimensional elastic member includes sliding bearing plates 1042 slidably mounted on both sides of the slide base 1041. The U-shaped frame 1043 is located inside the two sliding bearing plates 1042. At least two first support columns 1044 penetrating the U-shaped frame 1043 are also fixed between the two sliding bearing plates 1042. A first cylindrical spring 1046 is sleeved on the first support column 1044 between the sliding bearing plate 1042 and the U-shaped frame 1043, so that the first cylindrical springs 1046 on both sides of the U-shaped frame 1043 generate an elastic force towards each other on the U-shaped frame 1043;

[0061] On one side of the U-shaped frame 1043 parallel to the mounting frame 2, at least two second support columns 1045 fixed to the slide base 1041 penetrate through. Second cylindrical springs 1047 are sleeved on the second support columns 1045 on both sides of the U-shaped frame 1043. The two second cylindrical springs 1047 are both in a compressed state and have an elastic force towards the U-shaped frame 1043.

[0062] Through the arrangement of the two-dimensional elastic member, a slight elastic clearance is provided between the mounting frame 2 and the slide base 1041;

[0063] As can be seen from the above, there are two groups of elastic structures between the slide base 1041 and the U-shaped frame 1043. The two groups of elastic structures are perpendicular to each other and respectively correspond to the front-back and left-right orientations of the mounting frame 2.

[0064] In addition, the elastic structure has a large pre-tension force, that is, when the mounting frame 2 needs to move relative to the connecting block forward and backward and / or left and right, this pre-tension force needs to be overcome.

[0065] In this embodiment, during the riveting operation, the driving member controls the rotation of the riveting member through its precise movement, thereby driving the rotation of the stud 17 connected to the riveting member to connect it with the riveting nut. Through the cooperation of the transverse movement frame 1 and the mounting frame 2, it can ensure that the stud 17 accurately aligns with the hole position on the workpiece; during the connection process of the stud 17 and the riveting nut, the limiting member acts under the connection of the transmission member and the driving member to release the limit on the riveting member, so that the riveting member can swing and adjust slightly within the limiting member. At this time, the action of the pneumatic member enables the stud 17 to slide upward in a direction perpendicular to the riveting member, smoothly completing the riveting task. If there is a certain inclination angle between the contact surface of the stud 17 and the workpiece, the lateral component force generated during riveting will act on the universal connecting member. At this time, the existence of the universal connecting member enables the riveting member to swing and adjust on the mounting frame 2;

[0066] During the swinging adjustment of the universal connecting member, the mounting frame 2 will make forced adaptive forward or backward or left and right fine adjustments relative to the slide base 1041 through the transverse movement frame 1;

[0067] Specifically, during the riveting process, when there is an inclined angle and non-perpendicularity between the working surfaces of the riveting part and the workpiece, this design enables the mounting bracket 2 to achieve small-scale adaptive adjustment in the two-dimensional plane of front-back and left-right on the sliding seat 1041; ensuring that the mounting bracket 2 can be precisely adjusted as needed in different working environments. The role of the two-dimensional elastic member is to provide a small internal adjustment perpendicular to the riveting direction between the mounting bracket 2 and the connecting block, enabling the riveting part mounted on the mounting bracket 2 to not only adapt to the fine adjustment of front-back and left-right during the riveting process, but also resist external impacts or vibrations.

[0068] The mounting bracket 2 can be adjusted slightly in the front-back, left-right directions on the sliding seat 1041 through the two-dimensional elastic member, enabling the riveting part to freely swing and adjust slightly within the limiting member, thereby effectively compensating for the errors caused by the inclined angle. This process ensures that the stud 17 always remains perpendicular to the workpiece, avoiding interference to the riveting nut during the forming process due to the action of the lateral component force, thus affecting the quality of riveting;

[0069] After the riveting nut successfully completes the riveting and forming, the driving member will reverse the riveting part to separate the stud 17 from the riveting nut, and drive the action of the limiting member through the transmission member. This process can readjust the limiting member to perform centering clamping and limiting on the inclined riveting part, ensuring that the riveting part can return to its initial working state, ensuring the accuracy and stability of the next riveting operation. Through this design, the riveting operation can be carried out efficiently and precisely, not only solving the deviation problem caused by inclination in traditional riveting equipment, but also improving the automatic adjustment ability of the equipment; each riveting operation can maintain high-quality stability, ensuring that each workpiece on the production line meets the accuracy requirements, and enhancing the overall production efficiency and reliability.

[0070] Please refer to Figure 6 、 Figure 7 As a further solution of the present invention, the universal connecting member includes a universal seat 3 mounted on the mounting bracket 2, a universal ball head 4 movably engaged with the universal seat 3, a pneumatic rotating disk 5 fixedly connected to the universal ball head 4, and a connecting pipe 6 provided on one side of the pneumatic rotating disk 5. A through hole 7 is provided on the pneumatic rotating disk 5.

[0071] In this embodiment, the universal seat 3 is precisely mounted on the mounting bracket 2 to ensure its stability and efficient operation. The universal seat 3 is internally provided with a universal ball head 4 that can freely slide and engage, enabling the universal ball head 4 to be flexibly adjusted and move in multiple directions.

[0072] To ensure the normal operation of the pneumatic system, the connecting pipe 6 is connected to an external air pump. Under the action of the pneumatic rotating disk 5, the entire system can achieve stable air supply while performing precise rotational operations, without worrying about affecting the system performance due to insufficient air flow.

[0073] Please refer to Figures 3 - 5 Figures 3 - 5 As a further solution of the present invention, the riveting part includes a housing mechanism arranged on the pneumatic rotating disk 5 and a first gear 9 fixed on the housing mechanism;

[0074] The housing mechanism includes a housing 8 connected to one end of the pneumatic rotating disk 5, a first cavity 10 opened inside the housing 8, a second cavity 11 opened on the housing 8 inside the first cavity 10, and a plug post 12 fixed on the inner wall of the second cavity 11 near one end of the pneumatic rotating disk 5;

[0075] A slot hole communicating with the through hole 7 is opened on the plug post 12, and a piston ring 13 is slidably arranged in the first cavity 10.

[0076] The driving part includes a fixed seat 18 installed on the pneumatic rotating disk 5, a motor 19 arranged on the fixed seat 18, and a second gear 20 fixed on the output shaft of the motor 19;

[0077] The second gear 20 meshes with the first gear 9 to drive the first gear 9 to rotate.

[0078] The pneumatic part includes a spring 14 sleeved on the plug post 12, a sealing piston 15 abutted against one end of the spring 14 and slidable in the second cavity 11, and a piston rod 16 fixed on the sealing piston 15. The piston rod 16 is fixedly connected to the stud 17.

[0079] In this embodiment, one end of the housing 8 is rotatably connected to the pneumatic rotating disk 5 by adopting a connection method in the prior art. This design ensures the stable connection and good rotational performance between the two; in this connection method, the operation of the motor 19 can effectively drive the second gear 20 to mesh with the first gear 9, so that the first gear 9 rotates and drives the housing 8 to continuously rotate on the pneumatic rotating disk 5 while maintaining a sealed connection to avoid gas leakage;

[0080] During this process, the top of the piston ring 13 is connected to the first cavity 10, and gas is introduced into the first cavity 10 through the connecting pipe 6; the entry of the gas generates a driving force on the piston ring 13, prompting the piston ring 13 to move downward in the first cavity 10; as the piston ring 13 moves downward, the hydraulic oil in the first cavity 10 is forced to be squeezed downward and then flows into the second cavity 11; since the bottom of the first cavity 10 communicates with the bottom of the second cavity 11, the hydraulic oil quickly flows into the second cavity 11 when being squeezed, so as to meet the driving requirements;

[0081] When the hydraulic oil inside the second cavity 11 increases, the volume change of the hydraulic oil will cause the sealing piston 15 to move upward inside the second cavity 11; as the sealing piston 15 rises, the spring 14 on the top of the sealing piston 15 is compressed, generating a certain resilience; the spring 14 is sleeved on the insertion column 12, and the slot formed on the insertion column 12 is communicated with the through hole 7;

[0082] When the sealing piston 15 acts, it can drive the stud 17 to act through the piston rod 16, so that the stud 17 can rivet the blind rivet nut. Through the design of the guide groove and the guide strip, the piston rod 16 can only be vertically inserted into the housing 8 and cannot rotate, ensuring that when the housing 8 rotates, it can drive the piston rod 16 and the stud 17 to rotate synchronously.

[0083] Please refer to Figures 9 - 12 , as a further solution of the present invention, the limiting member includes a fixed ring 30 installed on the mounting bracket 2, a linkage member rotatable in the fixed ring 30, and a plurality of abutting rods 35 inserted in the fixed ring 30 in an annular array;

[0084] The plurality of abutting rods 35 are connected to the linkage member, and when the linkage member rotates, it is used to adjust the radial sliding of the plurality of abutting rods 35 on the fixed ring 30.

[0085] A rotating groove 31 for the rotation of the linkage member is formed on the inner wall of the fixed ring 30, and a plurality of guide holes 32 for the sliding of the abutting rods 35 are formed on the fixed ring 30 in an annular array;

[0086] A fitting groove 33 communicated with the rotating groove 31 is formed on the outer wall of one side of the fixed ring 30, and a rotating seat 34 is fixed on the fixed ring 30 at the position of the fitting groove 33;

[0087] The linkage member includes a fourth gear 36 rotatable in the rotating groove 31 and a scroll pattern 37 fixed on the fourth gear 36, and the scroll pattern 37 is connected to the plurality of abutting rods 35.

[0088] The transmission member includes two sets of symmetrically arranged coupling mechanisms and an insertion mechanism arranged between the two sets of coupling mechanisms;

[0089] Each coupling mechanism includes a first connecting seat 21 and a second connecting seat 23 rotatably connected to the first connecting seat 21 through a cross coupling 22. One of the first connecting seats 21 is fixed on the second gear 20, and a rotating shaft 29 is fixed on the other first connecting seat 21. The rotating shaft 29 rotates on the rotating seat 34 and a third gear 28 is fixed above it. The third gear 28 rotates in the fitting groove 33 and meshes with the fourth gear 36.

[0090] The plugging mechanism includes a sleeve 26, a connecting column 24 plugged into the sleeve 26, a sliding groove 25 formed on the connecting column 24, and a limiting rod 27 fixed on the sleeve 26 and sliding in the sliding groove 25;

[0091] One end of the connecting column 24 is fixed to one of the second connecting seats 23, and one end of the sleeve 26 is fixed to the other second connecting seat 23.

[0092] In this embodiment, when the motor 19 starts to operate, through the transmission of the transmission member, the limiting member can be driven to perform corresponding actions; specifically, the third gear 28 meshes with the fourth gear 36. As the third gear 28 rotates, the fourth gear 36 will also rotate synchronously; a scroll pattern 37 is fixed on the back of the fourth gear 36, and these scroll patterns 37 are connected to a plurality of abutting rods 35; when the fourth gear 36 rotates, the abutting rods 35 will displace along the path of the scroll pattern 37. Since the abutting rods 35 are limited within the fixed ring 30 and can only slide and plug along a certain track, the rotation of the fourth gear 36 will cause the plurality of abutting rods 35 to approach or move away from each other within the fixed ring 30; since the fixed ring 30 itself is a circular structure, this adjustment of the abutting rods 35 can cause the housing 8 to swing or adjust slightly within the circular space of the fixed ring 30. When the abutting rods 35 lose the abutment against the housing 8, the housing 8 can swing and adjust within the circular space of the fixed ring 30. When the abutting rods 35 abut against the housing 8, the housing 8 can be made to be at the center of the circular space of the fixed ring 30;

[0093] When the housing 8 swings or adjusts, the connection between the third gear 28 and the motor 19 is always maintained, ensuring that the power of the motor 19 is continuously transmitted to the system; this process is achieved through the action of the transmission member, enabling the motor 19 to continue to provide power support for the entire device while the system undergoes fine adjustment; the internal part of the sleeve 26 is limited and plugged with the connecting column 24 through the limiting rod 27, ensuring that the connecting column 24 can slide freely within the sleeve 26; this design of the sleeve 26 ensures that the internal components can move flexibly without any jamming phenomenon. One end of the sleeve 26 and one end of the connecting column 24 are respectively provided with a coupling mechanism to ensure that the third gear 28 and the second gear 20 are always connected; even if the housing 8 undergoes swing adjustment, the second gear 20 can still maintain a stable transmission connection with the third gear 28; through this precise design, the coordinated action between the connecting column 24 and the third gear 28 within the sleeve 26 enables the entire system to maintain a good operating state under any circumstances, whether during the fine adjustment of the housing 8 or under other dynamic change conditions, ensuring the efficient operation of the device.

[0094] A riveting method using a fully automatic riveting device with a multi-dimensional transformation as described above, comprising the following steps:

[0095] Step 1: Actuate the motor 19 so that the second gear 20 drives the first gear 9 to rotate, thereby causing the stud 17 inserted into the housing 8 to rotate synchronously. When the stud 17 rotates, it can thread-connect the riveting nut;

[0096] Step 2: When the motor 19 actuates to drive the stud 17 to tighten the nut, the fourth gear 36 rotates, causing the plurality of abutting rods 35 to slide away from the fixed ring 30 and lose the limit on the housing 8;

[0097] Step 3: The stud 17 inserts the riveting nut into the hole of the riveting workpiece, injects air into the first cavity 10 through the connecting pipe 6, drives the sealing piston 15 to act in the second cavity 11, and causes the stud 17 to lift linearly along the housing 8;

[0098] Step 4: When the stud 17 is inclined to the riveting working surface, the riveting part moves towards the working surface. The two-dimensional elastic member deforms under the action of the extrusion force and cooperates with the universal joint, so that the placement angle of the riveting part relative to the working surface is automatically adjusted and finally remains perpendicular to the working surface.

[0099] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present invention, all technical solutions that can implement the present invention in other specific forms are included in the present invention.

Claims

1. A fully automatic riveting device for multi-dimensional transformation, comprising a transverse moving frame and a mounting frame, characterized in that, A second sliding member is slidably disposed on the transverse moving frame, and a two-dimensional elastic member is disposed between the second sliding member and the mounting frame; An automatic riveting structure is provided on the mounting frame, and the automatic riveting structure includes: A universal connecting member, the universal connecting member is installed on the mounting frame, a riveting member is provided on the universal connecting member, and a stud that can slide along the length direction is connected to the inside of the riveting member through a pneumatic member; A driving member disposed on the universal connecting member and connected to the riveting member, the driving member is used to drive the riveting member to rotate on the universal connecting member; A limiting member provided on the mounting frame for limiting or releasing the limiting state of the riveting member. When the limiting member is in the released limiting state and the riveting member moves toward the working surface, the two-dimensional elastic member deforms under the extrusion force and cooperates with the universal connecting member, so that the placement angle of the riveting member relative to the working surface is automatically adjusted and finally remains perpendicular to the working surface; The universal connecting member includes a universal seat installed on the mounting frame, a universal ball head movably engaged on the universal seat, a pneumatic rotating disk fixedly connected to the universal ball head, and a connecting pipe disposed on one side of the pneumatic rotating disk. A through hole is provided on the pneumatic rotating disk; The riveting member includes a housing mechanism disposed on the pneumatic rotating disk and a first gear fixed to the housing mechanism; The housing mechanism includes a housing connected to one end of the pneumatic rotating disk, a first cavity opened inside the housing, a second cavity opened on the housing inside the first cavity, and a plugging column fixed to the inner wall of the second cavity near one end of the pneumatic rotating disk; A slot communicating with the through hole is provided on the plugging column, and a piston ring is slidably disposed in the first cavity; The driving member includes a fixed seat installed on the pneumatic rotating disk, a motor disposed on the fixed seat, and a second gear fixed to the output shaft of the motor; The second gear meshes with the first gear to drive the first gear to rotate; The limiting member includes a fixed ring installed on the mounting frame, a linkage member rotatably disposed in the fixed ring, and a plurality of abutting rods annularly inserted on the fixed ring; The plurality of abutting rods are connected to the linkage member, and when the linkage member rotates, it is used to adjust the radial sliding adjustment of the plurality of abutting rods on the fixed ring; A rotating groove for the linkage member to rotate is provided on the inner wall of the fixed ring, and a plurality of guiding holes for the abutting rods to slide are annularly provided on the fixed ring; A fitting groove communicating with the rotating groove is provided on the outer wall of one side of the fixed ring, and a rotating seat is fixed on the fixed ring at the fitting groove portion; The linkage member includes a fourth gear rotatably disposed in the rotating groove and a scroll pattern fixed to the fourth gear. The scroll pattern is connected to the plurality of abutting rods; The transmission member includes two sets of symmetrically arranged shaft connection mechanisms and a plugging mechanism disposed between the two sets of shaft connection mechanisms; The shaft connection mechanism includes a first connection seat and a second connection seat rotatably connected to the first connection seat through a cross coupling. One of the first connection seats is fixed to the second gear, and a rotating shaft is fixed to the other first connection seat. The rotating shaft rotates on the rotating seat and a third gear is fixed above it. The third gear rotates in the fitting groove and meshes with the fourth gear.

2. The fully automatic riveting device with multi-dimensional transformation according to claim 1, characterized in that, The plugging mechanism includes a sleeve, a connecting column inserted into the sleeve, a sliding groove opened on the connecting column, and a limiting rod fixed to the sleeve and sliding in the sliding groove; One end of the connecting column is fixed to one of the second connecting seats, and one end of the sleeve is fixed to the other second connecting seat.

3. The fully automatic riveting device with multi-dimensional transformation according to claim 1, characterized in that, The second sliding member includes a slide and a U-shaped frame fixedly connected to the mounting frame. The U-shaped frame is connected to the slide through a two-dimensional elastic member. A first sliding member is also slidably provided on the transverse moving frame. An electromagnetic card block is provided on the first sliding member. The electromagnetic card block is engaged with a card slot formed on the mounting frame.

4. A riveting method using a fully automatic riveting device for multi-dimensional transformation according to any one of claims 1-3, characterized in that, The following steps are involved: Step 1: The second gear drives the first gear to rotate through the action of the motor, thereby causing the stud inserted in the housing to rotate synchronously. When the stud rotates, the rivet nut can be threadedly connected; Step 2: When the motor drives the stud to tighten the nut, the fourth gear rotates, causing the multiple interference rods to slide away from the fixing ring and lose their position restraint on the housing; Step 3: The stud inserts the rivet nut into the hole of the rivet workpiece, and air is injected into the first cavity through the connecting pipe, driving the sealing piston to move in the second cavity, so that the stud is lifted up along the straight line of the shell; Step 4: When the stud is tilted to the rivet working surface, the rivet part moves toward the working surface. The two-dimensional elastic part is deformed under the action of the extrusion force and cooperates with the universal connector to automatically adjust the placement angle of the rivet part relative to the working surface and finally keep it perpendicular to the working surface.

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