Structures for feeding blind rivet bolts and full-automatic blind riveting devices

Abstract

The present invention relates to the technical field of automatic feeding, specifically a riveting bolt feeding structure and a full-automatic riveting device. The feeding structure includes a vibrating feeding tray and a conveying plate, and a guide rail is provided on the conveying plate. It further includes: a lateral clamping mechanism, the lateral clamping mechanism includes clamping plates arranged symmetrically, and the clamping plates are rotatable to adjust the clamping angle of the riveting bolts. By controlling the movement of the yaw control mechanism, the rotating rod is controlled to rotate a certain angle, thereby adjusting the included angle between the clamping plate and the riveting bolt, so that the direction of the clamping force generated by the clamping plate changes, and further reducing the included angle between the clamping plate and the adjacent perpendicular side of the edge. As the included angle decreases, the resistance generated by the edge gradually decreases until the resistance is less than the thrust provided by the clamping plate. Under the thrust of the clamping plate, the posture of the riveting bolt is corrected, so as to achieve the effect of clamping and positioning riveting bolts at different angles.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic feeding, and specifically to a rivet bolt feeding structure and a full-automatic riveting device. Background Art

[0002] Riveting, also known as riveting connection or rivet bolt connection, is a process of connecting two or more parts together by using rivet bolts (also known as blind rivets). A rivet bolt is a hollow rivet with a prefabricated nail core. By using a special tool to break the nail core, the tail of the rivet expands, thereby tightly fixing the parts together.

[0003] When a rivet bolt is installed, a riveting tool will clamp the pull ring of the nail core and apply a pulling force. As the pulling force increases, the nail core is gradually pulled into the nail body, and the tail of the nail body will expand due to the pulling of the nail core, thereby tightly clamping the connected parts. When the nail core is broken, the rivet bolt is installed, and the parts are firmly connected together.

[0004] Therefore, in order to ensure that the riveting gun can be smoothly connected to the rivet bolt, it is necessary to clamp and position the rivet bolt during the feeding of the rivet bolt. In the existing clamping method, a clamping plate is usually used to provide the clamping force for the rivet bolt to laterally clamp the rivet bolt. However, this method cannot ensure that the rivet bolt is in a vertical state, which may cause misalignment between the riveting gun and the rivet bolt.

[0005] To avoid the above situation, it can be solved by the method of multi-point clamping. However, taking a hexagonal prism rivet bolt as an example, when the clamping plate abuts against two symmetrically located edges of the rivet bolt, if the line connecting the two edges is perpendicular or nearly perpendicular to the clamping plate, the thrust provided by the clamping plate to the rivet bolt cannot overcome the resistance generated by the edges, making the rivet bolt unable to adaptively correct its posture, resulting in the rivet bolt unable to be positioned to the required position. Summary of the Invention

[0006] The purpose of the present invention is to provide a rivet bolt feeding structure and a full-automatic riveting device to solve the problems raised in the above background art.

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

[0008] A rivet bolt feeding structure includes a vibrating feeding tray and a conveying plate. A guide rail is provided on the conveying plate, and further includes:

[0009] A lateral clamping mechanism, the lateral clamping mechanism includes symmetrically arranged clamping plates, and the clamping plates are rotatable to adjust the clamping angle of the rivet bolt.

[0010] As a further solution of the present invention: it further includes:

[0011] A yaw control mechanism is used to drive the clamping plate to rotate so as to adjust the clamping angle of the clamping plate. It includes a rotating rod fixed to the clamping plate and two symmetrically arranged movable sleeves sleeved on the rotating rod for driving the rotating rod to perform forward and reverse rotations successively, so as to drive the clamping plate to automatically return to the correct position after adjusting the angle of the rivet bolt.

[0012] As a further scheme of the present invention: a guiding groove is provided on the circumferential outer wall of the rotating rod, and a first limiting block slidably matched with the guiding groove is arranged in the movable sleeve. Among them: the guiding groove includes a vertical groove, a first spiral groove and a second spiral groove opened on the circumferential outer wall of the rotating rod. Two ends of the second spiral groove are respectively connected to one end of the vertical groove and the first spiral groove, and the other end of the first spiral groove is connected to the vertical groove.

[0013] As a further scheme of the present invention: a third spiral groove is further formed on the rotating rod, and a second limiting block slidably matched with the third spiral groove is arranged in a follower ring sleeved on the rotating rod;

[0014] An elastic guiding member is further arranged between the movable sleeve and the follower ring. The elastic guiding member cooperates with the third spiral groove and the second limiting block on the follower ring to drive the rotating rod to have a torsional force relative to the movable sleeve.

[0015] As a further scheme of the present invention: it further includes a receiving plate for supporting the rotating rod. The receiving plate is slidably connected to a workbench for receiving a vibrating feeding tray. A first spring is sleeved on the rotating rod between the movable sleeve and the receiving plate;

[0016] A first connecting rod is hinged to the movable sleeve, and one end of the first connecting rod away from the movable sleeve is hinged to a pushing member.

[0017] As a further scheme of the present invention: the pushing member includes a movable plate and a sliding sleeve fixedly connected to the movable plate. The first connecting rod is hinged to the sliding sleeve, and the movable plate is driven by a telescopic driving member installed on the workbench to move.

[0018] As a further scheme of the present invention: a support column is installed on the workbench. The support column sequentially penetrates through the movable plate, the sliding sleeve and the receiving plate, and is slidably connected to the movable plate, the sliding sleeve and the receiving plate.

[0019] As a further scheme of the present invention: it further includes a lateral clamping assembly arranged on the clamping plate, including two inclined plates arranged symmetrically. When the clamping plate rotates, the two inclined plates move towards each other or in opposite directions to perform lateral clamping or releasing lateral clamping actions on the rivet bolt.

[0020] As a further solution of the present invention: a chute is formed on the clamping plate, and two sliding blocks respectively fixed to the two inclined plates are slidably installed in the chute;

[0021] A connecting seat is rotatably installed on the movable sleeve, and the connecting seat is hinged to the sliding block through a second connecting rod hinged thereto.

[0022] The full-automatic riveting device includes the above-mentioned riveting bolt feeding structure.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This application can realize multi-directional positioning and clamping of the riveting bolt through the cooperation of the inclined plate and the clamping plate, ensuring that the riveting gun can smoothly screw into the riveting bolt. The two clamping plates are controlled to approach each other through the transverse clamping mechanism to clamp two side walls of the riveting bolt, and the two inclined plates are controlled to approach each other through the lateral clamping assembly to clamp the other side walls of the riveting bolt. At the same time, the yaw adjustment mechanism can also adjust the clamping direction of the clamping plate to achieve the effect of clamping and positioning riveting bolts with different yaw angles.

[0024] By controlling the movement of the yaw adjustment mechanism, the rotating rod is rotated by a certain angle, thereby adjusting the angle between the clamping plate and the riveting bolt, changing the direction of the clamping force generated by the clamping plate, and further reducing the angle between the clamping plate and the adjacent vertical side of the edge. As the angle decreases, the resistance generated by the edge gradually decreases until the resistance is less than the thrust provided by the clamping plate. Under the thrust of the clamping plate, the posture of the riveting bolt is corrected, thereby achieving the effect of clamping and positioning riveting bolts at different angles.

[0025] The pre-thrust of the second spring and the interaction between the second limit block and the third spiral groove ensure that when the movable sleeve moves away from the limit ring, the first limit block can smoothly enter the first spiral groove. At the same time, during the clamping process of the clamping plate, the compression amount of the first spring will gradually increase, thereby ensuring that the clamping force provided by the clamping plate can meet the clamping requirements and guaranteeing the stability and reliability of the riveting bolt during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the riveting bolt feeding structure.

[0027] Figure 2 It is a schematic structural diagram of another angle in the embodiment of the riveting bolt feeding structure.

[0028] Figure 3 It is a schematic connection diagram of the transverse clamping mechanism, part of the yaw adjustment mechanism, and the lateral clamping assembly in the embodiment of the riveting bolt feeding structure.

[0029] Figure 4 This is a structural schematic diagram of the transverse clamping mechanism, clamping plate, partial deflection control mechanism, and lateral clamping assembly in an embodiment of the rivet bolt feeding structure.

[0030] Figure 5 This is a structural schematic diagram of part of the transverse clamping mechanism, part of the deflection control mechanism, and the lateral clamping assembly in the embodiment of the rivet bolt feeding structure.

[0031] Figure 6 This is a schematic diagram of a partially cutaway structure in an embodiment of a rivet bolt feeding structure.

[0032] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A.

[0033] Figure 8 This is a schematic diagram of the connection relationship between part of the transverse clamping mechanism and part of the deflection control mechanism in the embodiment of the rivet bolt feeding structure.

[0034] Figure 9 It is a schematic diagram of the exploded structure of part of the transverse clamping mechanism and part of the deflection control mechanism in the embodiment of the rivet bolt feeding structure.

[0035] Figure 10 This is a schematic diagram of the exploded structure of part of the transverse clamping mechanism in the embodiment of the rivet bolt feeding structure.

[0036] In the figure: 1. workbench; 2. vibrating loading tray; 3. conveying plate; 301. guide rail; 4. fixed plate; 5. support column; 6. receiving plate; 7. rotating rod; 701. vertical groove; 702. first spiral groove; 703. second spiral groove; 8. clamping plate; 801. slide groove; 9. sliding block; 10. tilting plate; 11. movable plate; 12. cylinder; 13. sliding sleeve; 14. limiting ring; 15. movable sleeve; 1501. first limiting block; 16. first connecting rod; 17. first spring; 18. second connecting rod; 19. third spiral groove; 20. follower ring; 21. second limiting block; 22. guide column; 23. second spring; 24. guide plate; 25. connecting seat. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In addition, an element in the present invention is referred to as "fixed to" or "disposed on" another element, and it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0039] Please refer to Figures 1 to 10 , in the embodiment of the present invention, a rivet bolt feeding structure includes:

[0040] A workbench 1, and a vibrating feeding tray 2 and a fixing plate 4 fixed on the workbench 1. A conveying plate 3 is fixed on the vibrating feeding tray 2, and a guide rail 301 is provided on the conveying plate 3;

[0041] It further includes:

[0042] A lateral clamping mechanism, the lateral clamping mechanism includes clamping plates 8 arranged symmetrically, and the clamping plates 8 are rotatable to adjust the clamping angle of the rivet bolts;

[0043] It further includes a yaw control mechanism for driving the clamping plates 8 to rotate to adjust the clamping angle of the clamping plates 8.

[0044] Specifically, when loading the hexagonal rivet bolt, multiple rivet bolts can be placed on the vibrating feeding tray 2. Under the action of the vibrating feeding tray 2, the rivet bolts will be guided into the guide rail 301. To ensure that the riveting gun can smoothly screw into the rivet bolt, the rivet bolt needs to be clamped. Since the outer wall of the rivet bolt is hexagonal, only the vertical surface on its side needs to be clamped. At this time, under the action of the transverse clamping mechanism, the two clamping plates 8 are controlled to move towards each other until the clamping plates 8 abut against the rivet bolt. At this time, the transverse clamping mechanism continues to move, and the clamping angle of the clamping plates 8 is continuously adjusted through the yaw control mechanism, so that the included angle between the two symmetrically located edges where the clamping plates 8 are in contact with the rivet bolt decreases. Thus, through the thrust provided by the clamping plates 8 to the rivet bolt, the rivet bolt itself is controlled to rotate, so that the vertical side surface of the rivet bolt moves to a position parallel and in contact with the clamping plates 8. Among them, since the vertical side surface of the rivet bolt may not be parallel to the clamping plates 8 during the movement process, and the rivet bolt itself may not be perpendicular to the workbench 1 either. Therefore, when the clamping plates 8 are in contact with the two symmetrically located edges of the rivet bolt, if the vertical side surface adjacent to this edge has a small included angle with the clamping plates 8, under the clamping force applied by the clamping plates 8, the rivet bolt will automatically adjust its posture so that its two symmetrically located vertical side surfaces are parallel and in contact with the clamping plates 8. If the included angle between the vertical side surface adjacent to the edge of the clamping plates 8 is large, or the connection line of the two edges is perpendicular to the clamping plates 8, at this time, the force applied by the clamping plates 8 to the rivet bolt is difficult to control the automatic rotation of the rivet bolt. In this case, the yaw control mechanism comes into play, which can adjust the direction of the force exerted by the clamping plates 8 on the rivet bolt, so that the included angle between the clamping plates 8 and the vertical side surface of the rivet bolt decreases, thereby controlling the rotation of the vertical side surface of the rivet bolt to a position in contact with the clamping plates 8, realizing stable clamping of the rivet bolt.

[0045] Please refer to Figures 1 - 6 、 Figure 10 The yaw control mechanism includes a rotating rod 7 fixed to the clamping plate 8 and two symmetrically arranged movable sleeves 15 sleeved on the rotating rod 7 for driving the rotating rod 7 to perform forward and reverse rotations in sequence, so as to drive the clamping plate 8 to automatically return to the correct position after adjusting the angle of the rivet bolt.

[0046] When the clamping plate 8 abuts against the rivet bolt, the following situations can be divided:

[0047] The clamping plate 8 just abuts against the two symmetrically located vertical side surfaces of the rivet bolt. Under the action of the clamping plate 8, the rivet bolt is fixed between the clamping plates 8, achieving a stable clamping effect;

[0048] The clamping plate 8 abuts against the edges at two symmetric positions of the rivet bolt, and the included angle between one of the vertical side faces adjacent to the edge and the clamping plate 8 is small. In this case, the resistance generated by the edge is less than the thrust provided by the clamping plate 8. Therefore, under the action of the clamping force, the rivet bolt itself will deflect by a certain angle, so that its vertical side face fits with the clamping plate 8, thereby realizing the clamping of the rivet bolt;

[0049] Third, the clamping plate 8 abuts against the edges at two symmetric positions of the rivet bolt, and the included angles between the two vertical side faces adjacent to the edges and the clamping plate 8 are both close to or equal to 60°. At this time, the thrust provided by the clamping plate 8 cannot overcome the resistance generated by the edges, resulting in a deviation in the clamping position of the rivet bolt.

[0050] A limit ring 14 is also fixed on the rotating rod 7. When the movable sleeve 15 is in contact with the limit ring 14, the two clamping plates 8 are in a state of not performing deflection.

[0051] A guide groove is provided on the circumferential outer wall of the rotating rod 7, and a first limit block 1501 that is slidably matched with the guide groove is provided in the movable sleeve 15, wherein: the guide groove includes a vertical groove 701, a first spiral groove 702, and a second spiral groove 703 opened on the circumferential outer wall of the rotating rod 7. Both ends of the second spiral groove 703 are respectively connected to one end of the vertical groove 701 and the first spiral groove 702, and the other end of the first spiral groove 702 is connected to the vertical groove 701.

[0052] A third spiral groove 19 is also formed on the rotating rod 7, and a second limit block 21 that is slidably matched with the third spiral groove 19 is provided in a follower ring 20 sleeved on the rotating rod 7;

[0053] An elastic guide member is further provided between the movable sleeve 15 and the follower ring 20. The elastic guide member, in cooperation with the third spiral groove 19 and the second limit block 21 on the follower ring 20, urges the rotating rod 7 to have a torsional force relative to the movable sleeve 15.

[0054] Before the rivet bolt is clamped, the movable sleeve 15 is in contact with the limiting ring 14, so that the first limiting block 1501 is located at the end of the stroke of the vertical groove 701 away from the second spiral groove 703. The sizes and specifications of the second spiral groove 703 and the third spiral groove 19 are the same. The second limiting block 21 is located at the end of the stroke of the third spiral groove 19 facing the vertical groove 701, so that the distance between the follower ring 20 and the limiting ring 14 is minimized, so that the elastic guide is in a compressed state. Since the vertical groove 701 and the first limiting block 1501 lock the rotating rod 7, the position of the follower ring 20 will not change. Under the action of the elastic guide, the follower ring 20 has a tendency to move away from the limiting ring 14. Under the action of the second limiting block 21 and the third spiral groove 19, the rotating rod 7 has a tendency to rotate;

[0055] When the rivet bolt needs to be clamped, at this time, the two clamping plates 8 move towards each other. When the clamping plate 8 abuts against the rivet bolt, if the abutting state between the rivet bolt and the clamping plate 8 is the first or second type, the rivet bolt can be directly clamped under the action of the thrust of the clamping plate 8. If the abutting state between the rivet bolt and the clamping plate 8 is the third type, at this time, the clamping plate 8 stops moving, and the movable sleeve 15 starts to move along the length direction of the rotating rod 7 and moves away from the limiting ring 14, so that the distance between the guide plate 24 and the follower ring 20 increases, so that the elastic force of the elastic guide decreases. The movable sleeve 15 will also drive the first limiting block 1501 to move along the vertical groove 701. When the first limiting block 1501 moves to the position where the vertical groove 701 is connected to the first spiral groove 702, the rotating rod 7 is no longer locked, and the elastic guide is elastically released, driving the follower ring 20 to move, so that the second limiting block 21 slides along the track of the third spiral groove 19, so that the rotating rod 7 rotates by a certain angle to ensure that the first limiting block 1501 smoothly enters the first spiral groove 702. The rotating rod 7 will drive the clamping plate 8 to swing by a certain angle to change the clamping direction of the clamping plate 8 on the rivet bolt, so as to reduce the angle between the clamping plate 8 and the adjacent vertical side of the edge;

[0056] When the thrust provided by the clamping plate 8 is greater than the resistance generated by the edge, the posture of the rivet bolt will automatically change until the vertical side of the rivet bolt fits the clamping plate 8. When the first limiting block 1501 moves to the connection position of the first spiral groove 702 and the second spiral groove 703, the movable sleeve 15 continues to move, so that the first limiting block 1501 disengages from the first spiral groove 702 and enters the second spiral groove 703, so that after the clamping plate 8 clamps the rivet bolt, it swings towards the initial angle until the first limiting block 1501 moves to the connection position of the second spiral groove 703 and the vertical groove 701, and the clamping plate 8 returns to the initial angle.

[0057] Among them, the elastic guide member includes a guide post 22 fixed to the follower ring 20. The guide post 22 passes through a guide plate 24 fixed to the movable sleeve 15 and is slidably connected to the guide plate 24. A second spring 23 is sleeved on the guide post 22 between the follower ring 20 and the guide plate 24. Two ends of the second spring 23 respectively abut against the guide plate 24 and the follower ring 20.

[0058] Please refer to Figures 3 - 5 and Figure 10 , and further includes a bearing plate 6 for supporting the rotating rod 7. The bearing plate 6 is slidably connected to a workbench 1 for bearing a vibrating feeding tray 2. A first spring 17 is sleeved on the rotating rod 7 between the movable sleeve 15 and the bearing plate 6;

[0059] A first connecting rod 16 is hinged to the movable sleeve 15. One end of the first connecting rod 16 away from the movable sleeve 15 is hinged to a pushing member.

[0060] The pushing member includes a movable plate 11 and a sliding sleeve 13 fixedly connected to the movable plate 11. The first connecting rod 16 is hinged to the sliding sleeve 13. The movable plate 11 is driven to move by a telescopic driving member installed on the workbench 1.

[0061] A support column 5 is installed on the workbench 1. The support column 5 sequentially passes through the movable plate 11, the sliding sleeve 13 and the bearing plate 6, and is slidably connected to the movable plate 11, the sliding sleeve 13 and the bearing plate 6.

[0062] Preferably, the telescopic driving member includes but is not limited to a cylinder 12, a hydraulic cylinder or an electric telescopic rod. In this embodiment, the cylinder 12 is preferably selected.

[0063] Specifically, before clamping the rivet bolt, under the action of the cylinder 12, the movable plate 11 and the sliding sleeve 13 are located at the end of the stroke towards the fixed plate 4. The first spring 17 is in a compressed state, so that the movable sleeve 15 abuts against the limit ring 14. Under the action of the first connecting rod 16, the distance between the bearing plate 6 and the movable plate 11 is the largest, the distance between the clamping plate 8 and the fixed plate 4 is the smallest, and the distance between the two clamping plates 8 is the largest. When it is necessary to clamp and position the rivet bolt, at this time, the cylinder 12 works and controls the sliding sleeve 13 to move along the length direction of the support column 5 and move away from the fixed plate 4. The sliding sleeve 13 will drive the movable sleeve 15 to move through the first connecting rod 16, so as to push the bearing plate 6 to move synchronously with the sliding sleeve 13 through the rotating rod 7. The rotating rod 7 will also drive the clamping plate 8 to move, so that the distance between the two clamping plates 8 gradually decreases until the clamping plate 8 abuts against the rivet bolt.

[0064] Therefore, when the above-mentioned third situation occurs, since the position of the clamping plate 8 remains unchanged, when the cylinder 12 continues to move, the sliding sleeve 13 will continue to slide along the support column 5, reducing the distance between the sliding sleeve 13 and the receiving plate 6. The first link 16 controls the movable sleeve 15 to slide along the length direction of the rotating rod 7 and compresses the first spring 17. Under the action of the movable sleeve 15, the rotating rod 7 is controlled to rotate by a certain angle, thereby adjusting the angle between the clamping plate 8 and the rivet bolt, causing the direction of the clamping force generated by the clamping plate 8 to change, and further reducing the angle between the clamping plate 8 and the adjacent vertical side of the edge. As the angle decreases, the resistance generated by the edge gradually decreases until the resistance is less than the thrust provided by the clamping plate 8. Under the thrust of the clamping plate 8, the attitude of the rivet bolt is corrected, thus achieving the effect of clamping and positioning rivet bolts at different angles.

[0065] Through the flexible adjustment of the yaw control mechanism, the clamping deviation problem caused by improper clamping angle can be effectively solved, ensuring that the rivet bolt is accurately clamped and positioned, and improving the reliability and stability of clamping.

[0066] It should be noted that before the rivet bolt is clamped, the first spring 17 is in a compressed state. Under the action of the cylinder 12, the movable sleeve 15 is in contact with the limit ring 14.

[0067] Preferably, the pre-thrust of the second spring 23 and the interaction between the second limiting block 21 and the third spiral groove 19 ensure that when the movable sleeve 15 moves away from the limiting ring 14, the first limiting block 1501 can smoothly enter the first spiral groove 702. This action changes the clamping direction of the clamping plate 8, thereby achieving the effect of clamping and positioning the rivet bolt at any angle. During the clamping process of the clamping plate 8, the compression amount of the first spring 17 will gradually increase, thereby ensuring that the clamping force provided by the clamping plate 8 can meet the clamping requirements and ensuring the stability and reliability of the rivet bolt during the clamping process. When the riveting gun is screwed into the rivet bolt, the cylinder 12 controls the sliding sleeve 13 to move towards the initial position to control the movement of the movable sleeve 15 through the first connecting rod 16. The first spring 17 elastically releases, causing the movable sleeve 15 to move towards the limiting ring 14 to control the first limiting block 1501 to slide along the vertical groove 701. Since the elastic potential energy of the first spring 17 is always greater than the elastic potential energy of the second spring 23, during the reset process of the first limiting block 1501, it will not enter the first spiral groove 702, ensuring that the angle of the clamping plate 8 will not deflect. When the movable sleeve 15 returns to the position where it abuts against the limiting ring 14, the cylinder 12 continues to move until the clamping plate 8 returns to the initial position. Through the action of the first limiting block 1501 and the vertical groove 701, it can be ensured that during the separation process of the clamping plate 8 and the rivet bolt, the angle of the clamping plate 8 will not deflect, so as to ensure that the clamping plate 8 will not interfere with the rivet bolt.

[0068] Please refer to Figures 3 - 6 , further including a lateral clamping assembly provided on the clamping plate 8, including two inclined plates 10 arranged symmetrically. When the clamping plate 8 rotates, the two inclined plates 10 move towards each other or in opposite directions to perform a lateral clamping or releasing lateral clamping action on the rivet bolt.

[0069] A chute 801 is formed on the clamping plate 8, and two sliding blocks 9 respectively fixed to the two inclined plates 10 are slidably installed in the chute 801;

[0070] A connecting seat 25 is rotatably installed on the movable sleeve 15, and the connecting seat 25 is hinged to the sliding block 9 through a second connecting rod 18 hinged thereto.

[0071] Furthermore, the angle between the inclined plate 10 and the clamping plate 8 is 60°. Therefore, after the clamping plate 8 laterally clamps the rivet bolt, the inclined plate 10 can clamp two adjacent vertical sides of the rivet bolt. In the initial state, the movable sleeve 15 and the limit ring 14 are in contact with each other. Under the action of the second connecting rod 18, the distance between the two inclined plates 10 is maximized. When the clamping plate 8 laterally clamps the rivet bolt, it can only ensure that the rivet bolt is parallel to the clamping plate 8. At this time, the rivet bolt may still be in a non-vertical state. Therefore, when the movable sleeve 15 moves along the length direction of the rotating rod 7 and moves away from the limit ring 14, it drives the second connecting rod 18 to move, thereby driving the two sliding blocks 9 to move towards each other, so that the distance between the two inclined plates 10 is reduced. During this process, the rotating rod 7 will rotate a certain angle, so that the direction of the clamping force provided by the clamping plate 8 to the rivet bolt changes to correct the posture of the rivet bolt. When the rotating rod 7 rotates towards the initial angle, it means that the vertical side of the rivet bolt fits with the clamping plate 8. At this time, the inclined plate 10 continues to move and controls the rivet bolt to move towards the center position of the clamping plate 8. When the movable sleeve 15 moves to the end of the stroke in the direction away from the limit ring 14, both inclined plates 10 will fit with the vertical sides of the rivet bolt, thereby performing center positioning and angle alignment on the rivet bolt.

[0072] The full-automatic riveting device includes the above-mentioned rivet bolt feeding structure.

[0073] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0074] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Riveting bolt feeding structure, including a vibrating feeding tray and a conveying plate, with guide rails opened on the conveying plate: characterized in that It further includes: A lateral clamping mechanism, including clamping plates arranged symmetrically, and the clamping plates are rotatable to adjust the clamping angle of the riveting bolt; A yaw control mechanism for driving the clamping plates to rotate to adjust the clamping angle of the clamping plates, including a rotating rod fixed to the clamping plates and two symmetrically arranged movable sleeves sleeved on the rotating rod for driving the rotating rod to perform forward and reverse rotations successively, so as to drive the clamping plates to automatically return to the correct position after adjusting the angle of the riveting bolt; A receiving plate for supporting the rotating rod, and the receiving plate is slidably connected to the workbench for receiving the vibrating feeding tray. A first spring is sleeved on the rotating rod between the movable sleeve and the receiving plate; a first connecting rod is hinged to the movable sleeve, and the end of the first connecting rod away from the movable sleeve is hinged to the driving member; A lateral clamping assembly arranged on the clamping plate, including two inclined plates arranged symmetrically. When the clamping plate rotates, the two inclined plates move towards or away from each other to perform lateral clamping or release the lateral clamping action on the riveting bolt; A guide groove is arranged on the circumferential outer wall of the rotating rod, and a first limit block slidably matched with the guide groove is arranged in the movable sleeve. Among them: the guide groove includes a vertical groove, a first spiral groove, and a second spiral groove opened on the circumferential outer wall of the rotating rod. The two ends of the second spiral groove are respectively connected to one end of the vertical groove and the first spiral groove, and the other end of the first spiral groove is connected to the vertical groove; A third spiral groove is further formed on the rotating rod, and a second limit block slidably matched with the third spiral groove is arranged in the follower ring sleeved on the rotating rod; An elastic guiding member is further arranged between the movable sleeve and the follower ring, and the elastic guiding member cooperates with the third spiral groove and the second limit block on the follower ring to drive the rotating rod to have a torsional force relative to the movable sleeve.

2. The riveting bolt feeding structure according to claim 1, characterized in that The driving member includes a movable plate and a sliding sleeve fixedly connected to the movable plate. The first connecting rod is hinged to the sliding sleeve, and the movable plate is driven by a telescopic driving member installed on the workbench to move.

3. The riveting bolt feeding structure according to claim 2, characterized in that, Support columns are installed on the workbench, and the support columns sequentially penetrate through the movable plate, the sliding sleeve and the receiving plate, and are slidably connected to the movable plate, the sliding sleeve and the receiving plate.

4. The riveting bolt feeding structure according to claim 3, characterized in that, Chute grooves are formed on the clamping plates, and two sliding blocks respectively fixed to the two inclined plates are slidably installed in the chute grooves; A connecting seat is rotatably installed on the movable sleeve, and the connecting seat is hinged to the sliding block through a second connecting rod hinged thereto.

5. Full-automatic riveting device, characterized in that, It includes the feeding structure according to any one of claims 1-4.

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