Automatic lock riveting machine

Abstract

The invention discloses an automatic lock head riveting machine, and particularly relates to the technical field of lock head riveting, the automatic lock head riveting machine comprises a seat stand, the upper surface of the seat stand is provided with a transmission motor, the output end of the transmission motor is fixedly connected with a rotating table, the upper surface of the rotating table is fixedly provided with a plurality of positioning jigs, and the positioning jigs are used for positioning lock heads; the manipulator assembly is located on one side of the rotating table and used for driving the riveting material to move to the lock head; and the material pressing assembly is installed on one side of the mechanical arm assembly and used for pressing the riveting material and the lock head. Lock heads are precisely conveyed into the positioning jigs on the rotating table through the feeding machine, and the automatic lock head machining device has the advantages that all links are seamlessly connected, intermediate circulation is not needed, the single-piece machining period is greatly shortened, and the production efficiency is remarkably improved, so that the problems that a large amount of time is wasted due to the fact that circulation is needed in the process operation, and the production cost is reduced are solved. And the production efficiency is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of riveting lock heads, more specifically, the present application relates to an automatic lock head riveting machine. BACKGROUND

[0002] The automatic lock head riveting machine is a device that combines automation technology and riveting process, mainly used for efficient and precise riveting assembly of lock heads. Its core use and advantage lies in firmly connecting the lock head with the base material through pressure or vibration, without the need for additional welding or bolt fixation, suitable for scenarios requiring high strength and anti-looseness.

[0003] In the existing public literature, patent CN116871450A discloses a new automatic riveting production process and device for disc buckle crossbar lock heads. This technology includes a lock head feeding station, a pin piece feeding station, a pin piece and lock head assembly station, a rivet feeding station, a defective product selection station, a riveting station, and a semi-finished product unloading station. Each station mechanism adopts modular design, with simple structure and convenient assembly and debugging. The riveting equipment can be used with a full-automatic crossbar welding equipment, and the semi-finished product after assembly and riveting is directly conveyed to the feeding position of the crossbar welding equipment, realizing full-automatic production process of disc buckle crossbar. However, this technology still has the following problems.

[0004] When the automatic lock head riveting machine is in use, due to various process operations, it is difficult to achieve universal and efficient flow processing of parts, so a lot of time is wasted in the middle of each process operation, greatly reducing production efficiency. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides the following technical scheme: an automatic lock head riveting machine, comprising a seat table, a transmission motor is installed on the upper surface of the seat table, the output end of the transmission motor is fixedly connected with a rotating table, a plurality of positioning jigs are fixed on the upper surface of the rotating table, and the positioning jigs are used for positioning lock heads; A mechanical hand assembly is located on one side of the rotating table, and the mechanical hand assembly is used to move riveting materials to the lock heads; A pressing assembly is installed on one side of the mechanical hand assembly, and the pressing assembly is used to press the riveting materials and the lock heads tightly; A riveting assembly is installed on one side of the pressing assembly, and the riveting assembly is used to rivet the riveting materials and the lock heads.

[0006] In a preferred embodiment, a plurality of positioning jigs are arranged in a circumferentially equidistant distribution, and the inner wall of the positioning jig is embedded in a groove.

[0007] In a preferred embodiment, the mechanical hand assembly comprises: A fixed platform is installed on one side of the rotary table, and the fixed platform is fixedly connected to the base. Multiple drive motors are fixedly installed on the inner wall of the fixed platform. A robotic arm is fixedly mounted on the output end of multiple drive motors. A hinge sleeve is hinged in the gap formed by the multiple robotic arms. A first solenoid valve is fixedly mounted on the inner wall of the hinge sleeve. The suction cup is threadedly installed at the bottom of the first solenoid valve.

[0008] In a preferred embodiment, a plurality of positioning fixtures are arranged in a circumferential distribution, and a plurality of the first solenoid valves are arranged in a circumferential distribution.

[0009] In a preferred embodiment, a material tray is provided below the suction cup, the material tray is fixedly connected to the fixed platform, and the inner wall of the material tray is a smooth surface.

[0010] In a preferred embodiment, the pressing assembly includes: A pressure base is located on one side of a fixed platform. The pressure base is fixedly connected to the platform. A pressure electric cylinder is fixedly installed on the top of the pressure base, and a pressure head is fixedly connected to the output end of the pressure electric cylinder.

[0011] In a preferred embodiment, the riveting assembly includes: a first riveting seat fixed to the upper surface of the base, a riveting electric cylinder fixedly mounted on the top of the first riveting seat, and a second riveting seat fixedly connected to the output end of the riveting electric cylinder; A riveting block is fixedly located at the bottom end of the second riveting seat. A sliding block is slidably installed on one side of the outer wall of the riveting block, and a compression electric cylinder is installed on one side of the sliding block. The extrusion cylinder is fixed to the first riveting seat.

[0012] In a preferred embodiment, the inner wall of the sliding block and the outer wall of the riveting block are both smooth surfaces, and the sliding block is used to position the riveting block.

[0013] In a preferred embodiment, a support seat is provided on one side of the first riveting seat, and the support seat is fixedly connected to the base. A sliding frame is fixedly installed at the top of the support base, and a stepper motor is fixedly installed at one end of the sliding frame. The stepper motor is used to drive the transmission screw to rotate, and a sleeve block is threadedly connected to the outer wall of the transmission screw. The socket block and the sliding frame are slidably connected. A movable electric cylinder is fixedly installed on one side of the socket block, and a second solenoid valve is fixedly connected to the output end of the movable electric cylinder. The bottom end of the second solenoid valve is fixedly connected to a disk.

[0014] In a preferred embodiment, a controller is provided on one side of the platform, and a conveyor line is installed on the other side of the platform.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention uses a feeding machine to precisely deliver the lock head to a positioning fixture on a rotating table. A drive motor drives the rotating table to rotate multiple positioning fixtures synchronously. When the fixtures move to the robotic arm component area, the robotic arm automatically grabs the rivet material and precisely places it on the lock head. Subsequently, the pressing component and the riveting component work together to complete the pressing and riveting process between the rivet material and the lock head in one go. The entire process realizes fully automated integration of lock head feeding, rivet material positioning, pressing, and riveting. Each link is seamlessly connected and there is no need for intermediate transfers. The processing cycle of a single piece is greatly shortened and the production efficiency is significantly improved.

[0016] 2. In this invention, the riveting material and the locking head are conveyed to the bottom of the pressing head. The pressing electric cylinder then supports the riveting electric cylinder, pushing the pressing head down to squeeze the riveting material. The base supports the first riveting seat, and the riveting electric cylinder is activated. The second riveting seat pushes the riveting block down to complete the riveting. The sliding block is then pushed to position the riveting block. The entire process of pressing and riveting is seamlessly connected, without intermediate transfer, which significantly shortens the processing time and greatly improves production efficiency.

[0017] 3. This invention uses a stepper motor to drive the transmission screw to rotate forward, causing the socket block to move to the right along the sliding frame. The disk moves down to insert the rivet material, and the second solenoid valve opens to lock the rivet material with negative pressure. The stepper motor reverses to drive the transmission screw to move the socket block to the left, simultaneously moving the rivet material and the locking head to the top of the conveyor line and placing them there. Finally, the conveyor line completes the automatic conveying. Through the coordinated linkage of the motor, screw, solenoid valve and disk, the entire process of rivet material grabbing, lifting, transferring and conveying is automated, significantly shortening the processing cycle and greatly improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the automatic riveting head machine of the present invention.

[0019] Figure 2 This is a partial structural diagram of the connection between the base and the fixed platform of the present invention.

[0020] Figure 3 This is a schematic diagram of a partial cut-off structure at the connection between the robotic arm and the hinge sleeve of the present invention.

[0021] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Figure 5 This is a partial structural diagram of the connection between the support base and the sliding frame of the present invention.

[0023] Figure 6This is a schematic diagram of a partial cut-off structure at the connection between the mobile electric cylinder and the disk of the present invention.

[0024] The attached figures are labeled as follows: 1. Base; 2. Drive motor; 3. Rotary table; 4. Positioning fixture; 5. Fixed table; 6. Drive motor; 7. Robotic arm; 8. Hinge sleeve; 9. First solenoid valve; 10. Suction cup; 11. Material tray; 12. Pressing seat; 13. Pressing cylinder; 14. Pressing head; 15. First riveting seat; 16. Riveting cylinder; 17. Second riveting seat; 18. Riveting block; 19. Extrusion cylinder; 20. Sliding block; 21. Support seat; 22. Sliding frame; 23. Stepper motor; 24. Drive screw; 25. Sleeve block; 26. Moving cylinder; 27. Second solenoid valve; 28. Disk disk; 29. ​​Controller; 30. Conveyor line. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1 - Figure 6 An automatic lock head riveting machine is shown, comprising a base 1, a drive motor 2 mounted on the upper surface of the base 1, a rotary table 3 fixedly connected to the output end of the drive motor 2, and multiple positioning fixtures 4 fixed on the upper surface of the rotary table 3 for positioning the lock head; a robotic arm assembly located on one side of the rotary table 3 for moving the riveting material to the lock head; a pressing assembly mounted on one side of the robotic arm assembly for pressing the riveting material to the lock head; and a riveting pressing assembly mounted on one side of the pressing assembly for riveting the riveting material to the lock head. The multiple positioning fixtures 4 are arranged in a circumferentially equidistant pattern, and the inner wall of the positioning fixtures 4 is embedded in a groove.

[0027] In this technology, the lock head is fed into the positioning fixture 4 on the rotary table 3 by a vibratory feeder. The rotary table 3 is driven to rotate by the drive motor 2. The rotary table 3 drives multiple positioning fixtures 4 to rotate. When it rotates to the area of ​​the robot arm component, the robot arm component moves the riveting material to the lock head. The pressing component can rivet the riveting material to the lock head. Finally, the riveting component can rivet the riveting material to the lock head, completing the integrated processing.

[0028] In this technical solution, such as Figure 1 - Figure 3As shown, the robotic arm assembly includes: a fixed platform 5, mounted on one side of the rotary table 3, and fixedly connected to the base 1; multiple drive motors 6 fixedly mounted on the inner wall of the fixed platform 5; robotic arms 7, fixedly mounted on the output ends of the multiple drive motors 6; a hinge sleeve 8 hinged in the gap formed by the multiple robotic arms 7; a first solenoid valve 9 fixedly mounted on the inner wall of the hinge sleeve 8; and a suction cup 10 threadedly mounted on the bottom end of the first solenoid valve 9. Multiple positioning fixtures 4 are arranged in a circumferential distribution, multiple first solenoid valves 9 are arranged in a circumferential distribution, and a material tray 11 is provided below the suction cup 10, fixedly connected to the fixed platform 5; the inner wall of the material tray 11 is a smooth surface.

[0029] When this technology is used, when the positioning fixture 4 rotates to the position of the suction cup 10, the fixed platform 5 supports multiple drive motors 6, and the robotic arm 7 drives the hinge sleeve 8 to move, so that the hinge sleeve 8 drives the first solenoid valve 9 to move the suction cup 10 and transport the riveting material to the top of the lock head. In this way, the robotic arm can perform the loading process and the loading effect is better.

[0030] In this technical solution, such as Figure 2 As shown, the pressing assembly includes: a pressing base 12, located on one side of the fixed platform 5, the pressing base 12 is fixedly connected to the platform 1, a pressing electric cylinder 13 is fixedly installed on the top of the pressing base 12, and a pressing head 14 is fixedly connected to the output end of the pressing electric cylinder 13 so that the platform 1 can support the pressing base 12, and the rivet and locking head are conveyed to the position below the pressing head 14. The pressing electric cylinder 13 supports the riveting electric cylinder 16, so that the pressing electric cylinder 13 pushes the pressing head 14 to move down, and the rivet and locking head are squeezed and locked, so that the locking effect is better.

[0031] In this technical solution, such as Figure 2 - Figure 4 As shown, the riveting assembly includes: a first riveting seat 15, fixed to the upper surface of the base 1, with a riveting electric cylinder 16 fixedly installed at the top of the first riveting seat 15, and a second riveting seat 17 fixedly connected to the output end of the riveting electric cylinder 16; and a riveting block 18, fixedly located at the bottom end of the second riveting seat 17, with a sliding block 20 slidably installed on one side of the outer wall of the riveting block 18, and a pressing electric cylinder 19 installed on one side of the sliding block 20. The pressing electric cylinder 19 is fixed to the first riveting seat 15. The inner wall of the sliding block 20 and the outer wall of the riveting block 18 are both smooth surfaces, and the sliding block 20 is used to position the riveting block 18.

[0032] In this technology, the first riveting seat 15 supports the riveting electric cylinder 16, ensuring that the riveting electric cylinder 16 pushes the second riveting seat 17 downward, and the riveting block 18 is pressed onto the riveting material. The first riveting seat 15 supports the extrusion electric cylinder 19, and the extrusion electric cylinder 19 pushes the sliding block 20 to achieve positioning of the riveting block 18, thus achieving a better riveting effect.

[0033] In this technical solution, such as Figure 2 - Figure 6 As shown, a support base 21 is provided on one side of the first riveting base 15, and the support base 21 is fixedly connected to the base 1. A slide frame 22 is fixedly installed on the top of the support base 21, and a stepper motor 23 is fixedly installed on one end of the slide frame 22. The stepper motor 23 is used to drive the transmission screw 24 to rotate, and a sleeve block 25 is threadedly connected to the outer wall of the transmission screw 24. The sleeve block 25 is slidably connected to the slide frame 22. A moving electric cylinder 26 is fixedly installed on one side of the sleeve block 25, and a second solenoid valve 27 is fixedly connected to the output end of the moving electric cylinder 26. A disk 28 is fixedly connected to the bottom end of the second solenoid valve 27. A controller 29 is provided on one side of the base 1, and a conveyor line 30 is installed on the other side of the base 1.

[0034] In this technology, the stepper motor 23 drives the transmission screw 24 to rotate forward, ensuring that the sleeve block 25 moves to the right along the outer wall of the slide frame 22. The moving electric cylinder 26 drives the second solenoid valve 27 to move to the right, and the disk 28 is inserted into the riveting material. By opening the second solenoid valve 27, the negative pressure suction air causes the disk 28 to lock the riveting material. The moving electric cylinder 26 drives the second solenoid valve 27 to move upward, and the controller 29 starts the stepper motor 23 to drive the transmission screw 24 to rotate in reverse. The sleeve block 25 drives the moving electric cylinder 26 to move to the left, and the disk 28 drives the riveted material and the lock head to move synchronously to the conveyor line 30, achieving better conveying effect and faster conveying speed.

[0035] The working principle of the automatic riveting head machine of this invention is as follows: Step 1: During loading, the lock head is conveyed to the positioning fixture 4 on the rotary table 3 by the vibratory feeder. The rotary table 3 is driven to rotate by the drive motor 2. The rotary table 3 drives multiple positioning fixtures 4 to rotate. When the positioning fixture 4 rotates to the position of the suction cup 10, the rivet material is placed inside the material tray 11. The fixed platform 5 is supported by the base 1. The fixed platform 5 supports multiple drive motors 6. The drive motors 6 can drive the robotic arm 7 to rotate. The robotic arm 7 drives the hinge sleeve 8 to move. The hinge sleeve 8 drives the first solenoid valve 9 to move the suction cup 10. In this way, the suction cup 10 is in contact with the rivet material and conveys the rivet material above the lock head, thus completing the stacking and loading operation.

[0036] Step 2: During the pressing process, the material is conveyed to the lower position of the pressing head 14 through the riveting material and the locking head. The pressing electric cylinder 13 is supported by the base 1, and the pressing electric cylinder 13 supports the riveting electric cylinder 16. The controller 29 can start the pressing electric cylinder 13, which pushes the pressing head 14 to move downward. The pressing head 14 presses against the riveting material, thereby pressing and locking the riveting material and the locking head to complete the locking operation.

[0037] Step 3: During riveting, the first riveting seat 15 is supported by the base 1, and the first riveting seat 15 supports the riveting electric cylinder 16. The riveting electric cylinder 16 is started by the controller 29, which pushes the second riveting seat 17 to move down. The second riveting seat 17 pushes the riveting block 18 to move down, and the riveting block 18 presses against the riveting material, completing the riveting process between the riveting material and the lock head. The first riveting seat 15 supports the pressing electric cylinder 19, and the controller 29 starts the pressing electric cylinder 19, which pushes the sliding block 20. The sliding block 20 pushes the outer wall of the riveting block 18, thereby achieving the positioning process of the riveting block 18. This stability allows the riveting material to be pressed and locked with the lock head.

[0038] Step 4: During conveying, the stepper motor 23 drives the transmission screw 24 to rotate forward. The transmission screw 24 drives the sleeve block 25 to move to the right under the action of the thread engagement force, and the sleeve block 25 moves to the right along the outer wall of the slide frame 22. At the same time, the sleeve block 25 drives the moving electric cylinder 26 to move to the right, and the moving electric cylinder 26 drives the second solenoid valve 27 to move to the right. The second solenoid valve 27 causes the disk 28 to move down, and at the same time, the disk 28 is inserted into the rivet. By opening the second solenoid valve 27, the negative pressure suction air locks the disk 28 into the rivet. Then, by moving... The electric cylinder 26 drives the second solenoid valve 27 to move upward, which in turn causes the disk 28 to move upward. Meanwhile, the controller 29 starts the stepper motor 23 to drive the transmission screw 24 to reverse. This causes the transmission screw 24 to drive the sleeve block 25 to move to the left under the action of the thread meshing force. At the same time, the sleeve block 25 drives the moving electric cylinder 26 to move to the left, and the moving electric cylinder 26 drives the second solenoid valve 27 to move the disk 28 to the left. Thus, the disk 28 drives the riveted material and the lock head to move synchronously to the conveyor line 30, and the conveyor line 30 realizes the conveying operation.

[0039] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic riveting head machine, comprising a base (1), characterized in that: A drive motor (2) is mounted on the upper surface of the base (1), and a rotary table (3) is fixedly connected to the output end of the drive motor (2). Multiple positioning fixtures (4) are fixed on the upper surface of the rotary table (3), and the positioning fixtures (4) are used to position the lock head. A robotic arm assembly is located on one side of the rotary table (3), and the robotic arm assembly is used to move the rivet material to the lock head; A clamping assembly is installed on one side of the robot arm assembly, and the clamping assembly is used to clamp the rivet material to the lock head; A riveting assembly is installed on one side of the pressing assembly, and the riveting assembly is used to rivet the rivet material to the lock head.

2. The automatic riveting head machine according to claim 1, characterized in that: Multiple positioning fixtures (4) are arranged in a circumferentially equidistant manner, and the inner wall of the positioning fixtures (4) is embedded in a groove.

3. The automatic riveting head machine according to claim 1, characterized in that: The robotic arm assembly includes: A fixed platform (5) is installed on one side of the rotating platform (3), and the fixed platform (5) is fixedly connected to the base (1). Multiple drive motors (6) are fixedly installed on the inner wall of the fixed platform (5). A robotic arm (7) is fixedly installed on the output end of multiple drive motors (6). A hinge sleeve (8) is hinged in the gap formed by the multiple robotic arms (7). A first solenoid valve (9) is fixedly installed on the inner wall of the hinge sleeve (8). The suction cup (10) is threadedly installed at the bottom of the first solenoid valve (9).

4. The automatic riveting head machine according to claim 3, characterized in that: The multiple positioning fixtures (4) are arranged in a circumferential distribution, and the multiple first solenoid valves (9) are arranged in a circumferential distribution.

5. The automatic riveting head machine according to claim 3, characterized in that: Below the suction cup (10) is a material tray (11), which is fixedly connected to the fixed platform (5). The inner wall of the material tray (11) is a smooth surface.

6. The automatic riveting head machine according to claim 1, characterized in that: The pressing assembly includes: The pressure seat (12) is located on one side of the fixed platform (5). The pressure seat (12) is fixedly connected to the platform (1). The top of the pressure seat (12) is fixedly installed with a pressure cylinder (13). The output end of the pressure cylinder (13) is fixedly connected with a pressure head (14).

7. The automatic riveting head machine according to claim 1, characterized in that: The riveting assembly includes: The first riveting seat (15) is fixed on the upper surface of the base (1). The top of the first riveting seat (15) is fixedly installed with a riveting electric cylinder (16), and the output end of the riveting electric cylinder (16) is fixedly connected to the second riveting seat (17). The riveting block (18) is fixedly located at the bottom end of the second riveting seat (17). A sliding block (20) is slidably installed on one side of the outer wall of the riveting block (18), and a compression electric cylinder (19) is installed on one side of the sliding block (20). The extrusion cylinder (19) is fixed to the first riveting seat (15).

8. The automatic riveting head machine according to claim 7, characterized in that: The inner wall of the sliding block (20) and the outer wall of the riveting block (18) are both smooth surfaces. The sliding block (20) is used to position the riveting block (18).

9. The automatic riveting head machine according to claim 7, characterized in that: The first rivet seat (15) has a support seat (21) on one side, and the support seat (21) is fixedly connected to the base (1); A slide frame (22) is fixedly installed at the top of the support base (21), and a stepper motor (23) is fixedly installed at one end of the slide frame (22). The stepper motor (23) is used to drive the transmission screw (24) to rotate, and the outer wall of the transmission screw (24) is threadedly connected to a sleeve block (25). The socket block (25) is slidably connected to the slide frame (22). A movable electric cylinder (26) is fixedly installed on one side of the socket block (25), and a second solenoid valve (27) is fixedly connected to the output end of the movable electric cylinder (26). The bottom end of the second solenoid valve (27) is fixedly connected to a disk (28).

10. The automatic riveting head machine according to claim 1, characterized in that: A controller (29) is provided on one side of the base (1), and a conveyor line (30) is installed on the other side of the base (1).

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