A rivet joining mechanism

Abstract

The application discloses a rivet joint mechanism and relates to the technical field of riveting equipment. The rivet joint mechanism comprises a joint track, a blocking piece, a trigger piece and an elastic reset piece. A conveying channel is formed in the joint track. The blocking piece is rotationally arranged on the top of the joint track. The elastic reset piece is arranged on the top of the joint track. The end of the elastic reset piece is connected with the blocking piece and is used for pulling the blocking piece to rotate and close the conveying channel. The trigger piece is arranged on a rivet feeding mechanism. When the joint track moves to the rivet feeding mechanism, the trigger piece pushes the blocking piece to rotate and open the conveying channel. In the process of supplementing the rivets, the opening and closing actions of the conveying channel are realized by a pure mechanical driving structure formed by the blocking piece and the trigger piece. The power is derived from the movement of a storage bin, and the dependence on electrical elements such as sensors and driving pieces is completely eliminated, so that the economy of the joint mechanism is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of riveting equipment technology, and in particular to a rivet connection mechanism. Background Technology

[0002] In automated automotive production lines, to improve the continuity and efficiency of the riveting process, riveting systems are typically equipped with rivet storage bins that store multiple rivets, as well as rivet receiving mechanisms that can automatically retrieve rivets. When the rivet reserves in the storage bin are depleted, the system will automatically replenish the rivets. A robotic arm will move the rivet receiving mechanism and the storage bin to the rivet supply mechanism to replenish the rivets and maintain continuous production.

[0003] Currently, the nail-attaching mechanism consists of a nail-attaching track, a drive unit, a sealing unit, and a sensor. The nail-attaching track is mounted on the robotic arm, the sealing unit is mounted on the feed end of the nail-attaching track, the drive unit is mounted on the nail-attaching track and is used to drive the sealing unit to open or close the feed end of the nail-attaching track, and the sensor is mounted on the nail-attaching track and is used to control the operation of the drive unit.

[0004] When the robotic arm moves the rivet-receiving mechanism to the rivet-supplying mechanism, the sensor controls the drive mechanism to operate. The drive mechanism drives the sealing component to open the feed end of the rivet-receiving track. After the rivet-receiving track is connected to the rivet-supplying mechanism, rivets can be replenished. When the rivet-receiving mechanism completes the replenishment and leaves the rivet-supplying mechanism, the sensor controls the drive mechanism to operate. The drive mechanism drives the sealing component to close the feed end of the rivet-receiving track, so that the rivets will not leak.

[0005] The accuracy and reliability of the sealing mechanism's operation are highly dependent on the coordinated control of the drive components and sensors. Currently, commonly used drive solutions include servo motors or cylinders, both of which are high-precision, high-response control elements. When used in conjunction with high-precision sensors, this significantly increases the procurement cost of key components of the fastening mechanism, thereby affecting the economics of the fastening system. Utility Model Content

[0006] In order to reduce the cost of rivet connection mechanism, this application provides a rivet connection mechanism.

[0007] The riveting mechanism provided in this application adopts the following technical solution:

[0008] A rivet connection mechanism includes a rivet connection track, a sealing member, a trigger member, and an elastic reset member. A conveying channel is formed within the rivet connection track. The sealing member is rotatably disposed at the top of the rivet connection track. The elastic reset member is disposed at the top of the rivet connection track. The end of the elastic reset member is connected to the sealing member and is used to pull the sealing member to rotate and close the conveying channel. The trigger member is disposed on a rivet feeding mechanism. When the rivet connection track moves to the rivet feeding mechanism, the trigger member pushes the sealing member to rotate and open the conveying channel.

[0009] By adopting the above technical solution, during the nail-repairing process, the robotic arm moves the nail-receiving track to the nail-supplying mechanism. The nail-receiving track causes the sealing component to first contact the trigger component. The trigger component then pushes the sealing component to rotate, opening the conveying channel. This allows the nail-receiving track to connect with the nail-supplying mechanism and perform the nail-repairing operation. After the nail-repair is completed, the robotic arm moves the nail-receiving track away. After the sealing component separates from the trigger component, the elastic reset component pulls the sealing component to rotate and close the conveying channel. With this configuration, the opening and closing of the conveying channel is achieved by a purely mechanical drive structure formed by the sealing component and the trigger component. Its power comes from the movement of the storage bin, completely eliminating the dependence on electrical components such as sensors and drive components, significantly improving the economy of the nail-receiving mechanism.

[0010] Preferably, the sealing component includes a sealing plate, a roller, and a connecting shaft. A mounting block is fixedly provided at the top of the pin-connecting track. The connecting shaft is mounted on the mounting block. The sealing plate is rotatably mounted on the connecting shaft. The elastic reset component is connected to the sealing plate and pulls the sealing plate to close the conveying channel. The roller is rotatably mounted on the sealing plate. The trigger component moves to contact the roller.

[0011] By adopting the above technical solution, when the robotic arm drives the nail-attaching track to move, the nail-attaching track drives the sealing plate and roller to move synchronously through the mounting block. The roller contacts the trigger, and the trigger drives the sealing plate to rotate on the connecting shaft through the roller, thereby opening the conveying channel.

[0012] Preferably, connecting plates are provided on both opposite side walls of the mounting block, and two elastic reset members are provided, with the two elastic reset members respectively connected to the two connecting plates.

[0013] By adopting the above technical solution, when the sealing plate rotates to open the conveying channel, it causes the two elastic reset members to stretch and deform. The contraction and deformation of the two elastic reset members can loosen the sealing plate and quickly rotate to close the conveying channel.

[0014] Preferably, the sealing plate is provided with tie rods on both sides, and the ends of the two elastic reset members away from the connecting plate are respectively connected to the two tie rods.

[0015] By adopting the above technical solution, the elastic reset component pulls the sealing plate to rotate and reset via a pull rod, thereby facilitating the rapid and stable rotation of the sealing plate to close the conveying channel.

[0016] Preferably, it also includes a guide rod disposed on the nail feeding mechanism, a mounting base is fixedly mounted on the bottom of the mounting block, a guide seat is fixedly disposed on the mounting base, a guide hole is opened in the guide seat, and the guide rod slides through the guide hole.

[0017] By adopting the above technical solution, when the robotic arm moves the nail receiving track to the nail supply mechanism, the guide rod is inserted into the guide hole of the guide seat. The guide rod and the guide seat work together to guide the movement of the nail receiving mechanism, making the docking of the nail receiving mechanism and the nail supply mechanism more precise.

[0018] Preferably, there are two connecting rails, and the two connecting rails are parallel to each other.

[0019] By adopting the above technical solution, two rivet-connecting tracks jointly transport rivets, improving the rivet transport efficiency and storage capacity.

[0020] Preferably, a sorting seat is fixedly provided at the bottom of the mounting base. Two feeding slots are provided in the sorting seat. The bottom ends of the two connecting rod tracks are respectively inserted into the two feeding slots. A sorting block is slidably provided on the sorting seat at the bottom of the two feeding slots. A discharge port is provided in the sorting block. A discharge slot is provided at the bottom of the sorting block on the sorting seat. The discharge slot is located between the two feeding slots. A driving component is provided on the sorting seat. The driving end of the driving component is connected to the sorting block and is used to drive the sorting block to move back and forth.

[0021] By adopting the above technical solution, the rivets in the two rivet tracks move into the two feed slots of the sorting seat. The drive unit drives the sorting block to move back and forth. When the discharge port of the sorting block moves to connect with one feed slot, a rivet in the feed slot enters the discharge port. When the discharge port of the sorting block moves towards the other feed slot, the discharge port will move past the discharge slot. When the discharge port connects with the discharge slot, the rivet in the discharge port is removed from the discharge slot. Repeating the above steps can make the two feed slots alternately supply rivets.

[0022] Preferably, the sorting block has clearance grooves on both sides of the feed inlet, and the rivet head is located in the clearance groove.

[0023] By adopting the above technical solution, during the reciprocating movement of the material distribution block, the rivet heads that are not fed to the bottom of the two feeding troughs are located in the clearance groove, thereby making the reciprocating movement of the material distribution block smoother.

[0024] Preferably, the sorting seat has a groove, and a slider is slidably arranged in the groove. The slider is fixedly connected to the driving end of the driving component, and the end of the sorting block is fixedly connected to the slider.

[0025] By adopting the above technical solution, the driving component drives the sorting block to move back and forth through the slider. The slider moves within the groove, thereby limiting the movement of the sorting block and making the reciprocating movement of the sorting block more stable.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. Utilizing a sealing component and a triggering component, during the nail patching process, the robotic arm moves the nail receiving track to the nail supply mechanism. The nail receiving track causes the sealing component to first contact the triggering component, which then pushes the sealing component to rotate and open the conveying channel. This allows the nail receiving track to connect with the nail supply mechanism and perform the nail patching operation. After the nail patching is completed, the robotic arm moves the nail receiving track away. After the sealing component and the triggering component separate, the elastic reset component pulls the sealing component to rotate and close the conveying channel. The opening and closing of the conveying channel is achieved by a purely mechanical drive structure formed by the sealing component and the triggering component. Its power comes from the movement of the storage bin, completely eliminating the dependence on electrical components such as sensors and drive components, significantly improving the economy of the nail patching mechanism.

[0028] 2. With the help of the guide rod and guide seat, when the robotic arm moves the nail receiving track to the nail feeding mechanism, the guide rod is inserted into the guide hole of the guide seat. The guide rod and guide seat work together to guide the movement of the nail receiving mechanism, making the docking of the nail receiving mechanism and the nail feeding mechanism more precise.

[0029] 3. Through the sorting seat, the rivets in the two rivet tracks move into the two feed slots of the sorting seat. The drive unit drives the sorting block to move back and forth. When the discharge port of the sorting block moves to connect with one feed slot, a rivet in the feed slot enters the discharge port. When the discharge port of the sorting block moves towards the other feed slot, the discharge port will move through the discharge slot. When the discharge port connects with the discharge slot, the rivet in the discharge port is removed from the discharge slot. Repeating the above steps can make the two feed slots alternately supply rivets. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the rivet connection mechanism of this application, to highlight the closed state of the conveying channel;

[0031] Figure 2 This is a partial structural side view of the rivet connection mechanism of this application, to highlight the open state of the conveying channel;

[0032] Figure 3 This is a schematic diagram of the overall riveting mechanism of this application.

[0033] Reference numerals: 1. Pin rail; 2. Sealing component; 21. Sealing plate; 22. Roller; 23. Connecting shaft; 3. Trigger; 4. Elastic reset component; 6. Connecting plate; 7. Pull rod; 8. Guide rod; 9. Mounting seat; 10. Mounting block; 11. Guide seat; 12. Guide hole; 13. Sorting seat; 14. Feed chute; 15. Sorting block; 16. Discharge port; 17. Discharge chute; 18. Driving component; 19. Clearance groove; 20. Slide groove; 24. Slider. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0035] This application discloses a rivet connection mechanism.

[0036] Reference Figure 1 and Figure 2 A riveting mechanism includes a riveting track 1, a sealing element 2, a trigger element 3, two elastic reset elements 4, and a guide rod 8. A conveying channel is formed within the riveting track 1. Two riveting tracks 1 are installed, and the two tracks 1 are parallel to each other. A mounting block 10 is fixedly installed at the top of each of the two riveting tracks 1, and a sorting seat 13 is fixedly installed at the bottom. A mounting base 9 is fixedly installed at the bottom of the mounting block 10, and the mounting base 9 is fixedly connected to the sorting seat 13 and fixedly mounted on a robotic arm.

[0037] The sealing component 2 is installed on the mounting block 10. The sealing component 2 includes a sealing plate 21, a roller 22, and a connecting shaft 23. The connecting shaft 23 is fixedly installed on the mounting block 10, the sealing plate 21 is rotatably installed on the connecting shaft 23, and the roller 22 is rotatably installed on one side of the sealing plate 21. The triggering component 3 is rod-shaped and fixedly installed on the nail feeding mechanism. The roller 22 moves to contact the triggering component 3, and the triggering component 3 can drive the sealing plate 21 to rotate and open the conveying channel through the roller 22.

[0038] Pull rods 7 are fixedly installed on both opposite side walls of the sealing plate 21, and one end of each of the two elastic reset members 4 is connected to the two pull rods 7. Connecting plates 6 are fixedly installed on both opposite side walls of the mounting block 10, and the ends of the two elastic reset members 4 away from the pull rods 7 are connected to the two connecting plates 6. In this application, the elastic reset members 4 can be selected as tension springs. The two elastic reset members 4 can pull the sealing plate 21 to rotate and close the conveying channel.

[0039] A guide seat 11 is fixedly installed at the top of the mounting base 9. Guide holes 12 are provided on both sides of the guide seat 11. Two guide rods 8 are fixedly installed on the nail feeding mechanism and located on both sides of the trigger rod. The two guide rods 8 slide through the two guide holes 12 respectively. When the robotic arm drives the nail receiving track 1 to connect with the nail feeding mechanism, the guide rods 8 are inserted into the guide holes 12, thereby guiding the movement of the nail receiving track 1.

[0040] Reference Figure 3 The top of the sorting seat 13 has two feed troughs 14, and the bottom ends of the two rivet rails 1 are respectively installed in the two feed troughs 14. The bottom of the sorting seat 13 has a discharge trough 17, which is located in the middle of the line connecting the two feed troughs 14. The rivet discharge bin is installed at the bottom of the sorting seat 13 and connected to the discharge trough 17.

[0041] A drive unit 18 is fixedly installed on one side of the sorting seat 13. A slide groove 20 is provided inside the sorting seat 13, and a slider 24 is slidably installed in the slide groove 20 in a horizontal direction. The drive end of the drive unit 18 is fixedly connected to the slider 24. In this application, the drive unit 18 can be a motor.

[0042] A sorting block 15 is slidably mounted horizontally inside the sorting seat 13. The end of the sorting block 15 is fixedly connected to the slider 24. The sorting block 15 is located between the feed chute 14 and the discharge chute 17. A discharge port 16 is opened in the middle of the sorting block 15. Alternating clearance grooves 19 are opened on both sides of the top wall of the sorting block 15 opposite to the discharge port 16. The body of the rivet at the bottom of the feed chute 14 is located on the sorting block 15, and the head of the rivet is located in the clearance groove 19. The driving component 18 drives the sorting block 15 to reciprocate horizontally via the slider 24, and the sorting block 15 drives the discharge port 16 to reciprocate between the two discharge chute 17.

[0043] In one work cycle: when the discharge port 16 of the sorting block 15 moves to align with the first feed chute 14, the discharge port 16 captures a rivet; the sorting block 15 moves in the reverse direction, carrying the rivet through the discharge chute 17 and completing the unloading there; the sorting block 15 continues to move, and its discharge port 16 aligns with the second feed chute 14, where the discharge port 16 captures another rivet. Through the continuous reciprocating movement of the sorting block 15, the timing control of the two feed chute 14 and the alternating, continuous transport of rivets are achieved.

[0044] The implementation principle of a rivet connection mechanism according to an embodiment of this application is as follows: During the rivet repair operation, the robotic arm drives the rivet connection track 1 to move to the corresponding position of the rivet supply mechanism. At this time, the guide rod 8 is first inserted into the guide hole 12, and the rivet connection track 1 drives the roller 22 to contact the trigger 3. The trigger 3 pushes the sealing plate 21 to rotate through mechanical action, thereby opening the conveying channel and realizing the docking of the rivet connection track 1 with the rivet supply mechanism for rivet repair operation. After the rivet repair task is completed, the robotic arm drives the rivet connection track 1 to withdraw, and the roller 22 disengages from the trigger 3. Under the action of the elastic reset member 4, the sealing plate 21 automatically rotates back to the initial position and closes the conveying channel. Through the pure mechanical linkage mechanism composed of the sealing member 2 and the trigger 3, the automatic opening and closing function of the conveying channel is realized. Its power comes from the relative movement of the robotic arm, without relying on electrical components such as sensors and drivers, which significantly improves the economy and structural reliability of the rivet connection mechanism.

[0045] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A rivet connection mechanism, characterized in that: The device includes a nail-receiving track (1), a sealing element (2), a trigger element (3), and an elastic reset element (4). The nail-receiving track (1) has a conveying channel. The sealing element (2) is rotatably mounted on the top of the nail-receiving track (1). The elastic reset element (4) is mounted on the top of the nail-receiving track (1). The end of the elastic reset element (4) is connected to the sealing element (2) and is used to pull the sealing element (2) to rotate and close the conveying channel. The trigger element (3) is mounted on the nail-supplying mechanism. When the nail-receiving track (1) moves to the nail-supplying mechanism, the trigger element (3) pushes the sealing element (2) to rotate and open the conveying channel.

2. The rivet connection mechanism according to claim 1, characterized in that: The sealing component (2) includes a sealing plate (21), a roller (22) and a connecting shaft (23). The top end of the connecting track (1) is fixedly provided with an installation block (10). The connecting shaft (23) is provided on the installation block (10). The sealing plate (21) is rotatably provided on the connecting shaft (23). The elastic reset component (4) is connected to the sealing plate (21) and pulls the sealing plate (21) to close the conveying channel. The roller (22) is rotatably provided on the sealing plate (21). The trigger component (3) moves to contact the roller (22).

3. The rivet connection mechanism according to claim 2, characterized in that: The mounting block (10) has connecting plates (6) on its opposite side walls. There are two elastic reset members (4), and the two elastic reset members (4) are respectively connected to the two connecting plates (6).

4. The rivet connection mechanism according to claim 2, characterized in that: Pull rods (7) are provided on both sides of the sealing plate (21), and the ends of the two elastic reset members (4) away from the connecting plate (6) are respectively connected to the two pull rods (7).

5. A rivet connection mechanism according to claim 3, characterized in that: It also includes a guide rod (8) set on the nail feeding mechanism. A mounting base (9) is fixedly installed at the bottom of the mounting block (10). A guide seat (11) is fixedly set on the mounting base (9). A guide hole (12) is opened in the guide seat (11). The guide rod (8) slides through the guide hole (12).

6. A rivet connection mechanism according to claim 5, characterized in that: There are two connecting rails (1), and the two connecting rails (1) are parallel to each other.

7. A rivet connection mechanism according to claim 5, characterized in that: A sorting seat (13) is fixedly provided at the bottom of the mounting base (9). Two feed slots (14) are opened in the sorting seat (13). The bottom ends of the two connecting rod rails (1) are respectively inserted into the two feed slots (14). A sorting block (15) is slidably provided at the bottom end of the two feed slots (14) of the sorting seat (13). A discharge port (16) is provided in the sorting block (15). A discharge slot (17) is opened at the bottom of the sorting block (15) of the sorting seat (13). The discharge slot (17) is located between the two feed slots (14). A driving member (18) is provided on the sorting seat (13). The driving end of the driving member (18) is connected to the sorting block (15) and used to drive the sorting block (15) to move back and forth.

8. A rivet connection mechanism according to claim 7, characterized in that: The sorting block (15) is provided with clearance grooves (19) on both sides of the feed inlet (16), and the head of the rivet is located in the clearance groove (19).

9. A rivet connection mechanism according to claim 7, characterized in that: The sorting seat (13) has a groove (20) inside, and a slider (24) is slidably arranged in the groove (20). The slider (24) is fixedly connected to the driving end of the driving member (18), and the end of the sorting block (15) is fixedly connected to the slider (24).

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