Automatic riveting press for a latch component

Abstract

The application relates to the field of mechanical processing, in particular to a latch part automatic riveting press, which comprises an intermittent transmission mechanism, a top rod feeding mechanism, a plug feeding mechanism, a riveting mechanism and a discharging mechanism are arranged in sequence along the transmission direction of the intermittent transmission mechanism, and processing stations are arranged correspondingly to the mechanisms; the intermittent transmission mechanism is provided with a plurality of positioning clamps for placing top rods and plugs; the top rod feeding mechanism is used for conveying the top rods to the positioning clamps of the corresponding stations; the plug feeding mechanism is used for conveying the plugs to the positioning clamps of the corresponding stations and inserting the plugs into the top rods in the positioning clamps; the riveting mechanism is used for pressing down to the top of the positioning clamps of the corresponding stations, and performs a riveting operation on the plugs and the top rods to obtain products; and the discharging mechanism is used for moving the products on the positioning clamps of the corresponding stations out. The automatic riveting press can meet the demand of large-scale production of latch parts, and improves the production efficiency and product quality of the latch parts.

Description

An automatic riveting machine for pin components Technical Field

[0001] This application relates to the field of machining, and in particular to an automatic riveting machine for pin components. Background Technology

[0002] In the fields of mechanical manufacturing and electronic component processing, pin components are widely used as an important part. Especially in electronic products and accessories, plugs, sockets, chargers, molds and accessories, pin components play a crucial role in connection and conductivity. With the rapid development of the electronics industry, the market demand for electronic products is constantly increasing, leading to a growing demand for pin components. The quality and production efficiency of pin components directly affect the performance and market competitiveness of the entire electronic product, and improvements in their manufacturing processes are crucial for enhancing product stability and safety. As electronic products continue to develop towards miniaturization and intelligence, higher requirements are placed on the precision and production efficiency of pin components. In the riveting operation of pin components, for the riveting of ordinary shaped pin components, a relatively mature automated production process has been developed in the market. Utilizing the precise positioning and control of automated equipment, fast and accurate riveting of pin components is achieved. However, for irregularly shaped plug components, such as conductive plugs in plugs, which include a push rod and a conductive tab, the push rod head at the end is a block structure with a convex ring with an annular groove on its surface. The conductive tab is an "L"-shaped structure with a socket. Riveting is achieved by inserting the push rod head into the socket of the conductive tab and applying pressure to ensure an interference fit between the tab and the annular groove of the convex ring. Current methods primarily rely on manual operation, with workers manually riveting the push rod and conductive tab to assemble the plug component. Some manufacturers use semi-automatic equipment to assist in the riveting process, requiring manual placement of the push rod and conductive tab onto the positioning platform of the riveting device. The riveting device then applies pressure to achieve the riveting, and the finished product is removed. Existing semi-automatic equipment has significant drawbacks in practical applications. The riveting process involves a high degree of manual intervention, resulting in low production efficiency and difficulty in meeting the needs of large-scale production. Furthermore, worker fatigue and negligence during manual operation can directly affect the riveting quality, leading to a high rate of defective products. Summary of the Invention

[0003] In order to meet the needs of large-scale production and improve the production efficiency and product quality of pin components, this application provides an automatic riveting machine for pin components.

[0004] This application provides an automatic riveting machine for pin components, including an intermittent transmission mechanism and a top rod feeding mechanism, a insert feeding mechanism, a riveting mechanism, and a unloading mechanism arranged sequentially along the transmission direction of the intermittent transmission mechanism;

[0005] The intermittent transmission mechanism is provided with processing stations along its transmission path corresponding to the positions of the push rod feeding mechanism, insert feeding mechanism, riveting mechanism and unloading mechanism, for realizing the intermittent transmission of push rods and inserts; the intermittent transmission mechanism is equipped with several positioning fixtures for placing push rods and inserts.

[0006] The push rod feeding mechanism is used to convey the push rod to the positioning fixture at the corresponding workstation; the insert feeding mechanism is used to convey the insert to the positioning fixture at the corresponding workstation and insert the push rod into the positioning fixture.

[0007] The riveting mechanism is used to press down onto the top of the positioning fixture at the corresponding work station to perform a riveting operation on the insert and the top rod to obtain the product;

[0008] The unloading mechanism is used to remove the product from the positioning fixture at the corresponding workstation. By adopting the above technical solution, an intermittent transmission mechanism is set up, with processing stations sequentially arranged along the conveying path corresponding to the positions of each mechanism, and equipped with positioning fixtures. This enables intermittent conveying of the push rod and insert, allowing each process to proceed in an orderly manner and avoiding time waste and errors caused by frequent manual operation. The push rod feeding mechanism conveys the push rod to the positioning fixture, and the insert feeding mechanism conveys the insert and inserts it into the push rod in the positioning fixture, realizing automatic feeding of the push rod and insert and reducing manual intervention. The riveting mechanism performs riveting operations on the push rod and insert in the positioning fixture to obtain the product, and the unloading mechanism removes the product. The entire process forms a complete automated production line. Compared with traditional manual or semi-automatic riveting methods, this automatic riveting machine greatly improves production efficiency and can meet the needs of large-scale production. At the same time, it reduces manual operation and reduces the impact of factors such as worker fatigue and negligence on riveting quality, thereby reducing the defect rate and improving product quality and stability. Preferably, the intermittent transmission mechanism further includes a turntable assembly and an angle control assembly. The turntable assembly rotates horizontally around its vertical axis. The positioning fixture is evenly and circumferentially disposed on the top of the turntable assembly, and the angle control assembly is disposed on the bottom of the turntable assembly to precisely control the single rotation angle of the turntable assembly. By adopting the above technical solution, since the intermittent transmission mechanism includes a turntable assembly and an angle control assembly, the turntable assembly rotates horizontally around its vertical axis, the positioning fixture is evenly and circumferentially disposed on the top of the turntable assembly, and the angle control assembly is disposed on the bottom of the turntable assembly to precisely control the single rotation angle of the turntable assembly, enabling the positioning fixture to accurately and intermittently rotate to each processing station. This precise angle control can avoid deviations in the position transmission of the positioning fixture, ensuring that the push rod and insert accurately reach the corresponding station. At the same time, the horizontal rotation of the turntable assembly allows for orderly connection of operations at each station, reducing waiting time between processes, improving the continuity and efficiency of automatic riveting of pin components, and better adapting to the rhythm of large-scale production, reducing the degree of manual intervention, reducing errors that may be caused by manual operation, thereby improving product quality and production efficiency. Preferably, the positioning fixture includes a base and a cover plate. The base is disposed on the turntable assembly and has a cavity structure. The cover plate is disposed on top of the base and has a positioning hole. A support platform is disposed inside the base corresponding to the position of the positioning hole. The push rod feeding mechanism clamps and conveys the push rod so that the end of the push rod passes through the positioning hole to the support platform, and the tip of the push rod protrudes from the surface of the cover plate. By adopting the above technical solution, the positioning fixture includes a base and a cavity structure, which provides space inside for a support platform. The cover plate, disposed on top of the base and having a positioning hole, can position the push rod during conveying. When the push rod feeding mechanism clamps and conveys the push rod, the positioning guidance of the positioning hole ensures that the end of the push rod accurately passes through the positioning hole to the support platform, guaranteeing the accuracy of the push rod's placement.Meanwhile, the tip of the push rod protrudes from the surface of the cover plate, facilitating the subsequent insertion of the insert piece into the push rod by the insert feeding mechanism. This provides good preparatory work for the riveting of the insert piece and the push rod, effectively improving the accuracy and efficiency of the riveting of the pin components, thereby enhancing product quality. Preferably, a buffer structure is provided between the base and the cover plate, and the cover plate can move vertically against the top of the base. By adopting the above technical solution, a buffer structure is provided between the base and the cover plate, allowing the cover plate to move vertically against the top of the base. When the riveting mechanism performs riveting operations on the push rod and insert piece in the positioning fixture, a large pressure is generated. Without a buffer structure, the rigid connection may cause the positioning fixture, push rod, or insert piece to be damaged due to excessive instantaneous pressure. The buffer structure can buffer the pressure during riveting, absorbing and dispersing some of the pressure, preventing the pressure from directly impacting the positioning fixture and the workpiece.

[0009] Preferably, the push rod feeding mechanism includes: a push rod vibratory feeder assembly, a push rod transfer assembly, and a push rod clamping assembly. The push rod vibratory feeder assembly is used to arrange and convey push rods with their ends facing downwards. The push rod transfer assembly is used to transfer push rods one by one from the discharge end of the push rod vibratory feeder assembly to a preparatory position. The push rod clamping assembly includes a sliding member, a lifting member, and a clamping member. The sliding member is located near the discharge end of the push rod vibratory feeder assembly. The sliding member is equipped with the lifting member. The lifting member is equipped with the clamping member for clamping the push rods. The sliding member drives the lifting member to reciprocate between the preparatory position and the corresponding working position. The lifting member drives the clamping member to reciprocate vertically to remove the push rods from the preparatory position and place them into the positioning fixture at the corresponding working position. By adopting the above technical solution, the push rod vibratory feeder assembly can arrange and convey push rods with their ends facing downwards, so that the push rods are transported to the discharge end in an orderly manner. Next, the push rod transfer assembly moves the push rods from the discharge end to the preparatory position one by one, achieving precise transfer of the push rods individually. The sliding component of the push rod clamping assembly is positioned near the discharge end, driving the lifting component to reciprocate between the preparatory position and the corresponding work position. The lifting component, in turn, drives the clamping component to reciprocate vertically, thus allowing the push rod to be removed from the preparatory position and placed into the positioning fixture at the corresponding work position. The entire push rod feeding mechanism automates push rod feeding, improving the production efficiency and feeding accuracy of the automatic riveting machine for pin components. Preferably, the push rod transfer assembly includes a first slider and a second slider, forming a receiving groove between the first slider and the second slider that can accommodate one push rod. When the push rod vibratory feeder assembly conveys the push rod to the receiving groove, the first slider and the second slider drive the push rod to move synchronously in a direction perpendicular to the push rod conveying direction to the preparatory position. By adopting the above technical solution, a receiving groove for accommodating one push rod is formed between the first and second sliders of the push rod transfer assembly. When the push rod vibratory feeder assembly transfers the push rod to this receiving groove, since the receiving groove can only accommodate one push rod, this ensures that only one push rod is processed at a time, avoiding the chaos that may be caused by multiple push rods moving simultaneously. Next, the first and second sliders drive the push rod to move synchronously to the preparatory position in a direction perpendicular to the push rod transfer direction. This vertical movement cleverly utilizes space, ensuring that the push rod transfer path does not interfere with the transfer path of the push rod vibratory feeder assembly, thus ensuring the smoothness of the push rod transfer process. Simultaneously, accurately transferring the push rod to the preparatory position facilitates the subsequent push rod clamping assembly's accurate removal of the push rod from the preparatory position and placement into the corresponding positioning fixture, contributing to improved working efficiency and stability of the entire automatic riveting machine for pin components.Preferably, the insert feeding mechanism includes an insert vibratory feeder assembly, an insert lifting assembly, and an insert clamping assembly. The insert vibratory feeder assembly arranges and conveys inserts with their inserts facing upwards. The insert lifting assembly lifts the inserts one by one from the discharge end of the insert vibratory feeder assembly for clamping. The insert clamping assembly clamps the inserts and conveys them to the positioning fixture above the corresponding workstation, aligning the insert's insert with the top rod and inserting it. By adopting the above technical solution, the insert vibratory feeder assembly can arrange and convey inserts with their inserts facing upwards. This arrangement ensures that the inserts are in a uniform posture that facilitates subsequent operations, avoiding the problem of disordered inserts that make accurate picking and installation difficult. The insert lifting assembly lifts the inserts one by one from the discharge end of the insert vibratory feeder assembly, facilitating clamping by the insert clamping assembly. The step-by-step lifting method ensures that only one insert is operated at a time, improving the accuracy and stability of the operation. The insert clamping assembly conveys the clamped insert to the position fixture above the corresponding workstation and aligns the insert's insertion port with the top rod for insertion, achieving precise docking between the insert and the top rod, thereby improving the riveting quality and production efficiency of the pin components. Preferably, the riveting mechanism includes a riveting assembly and a limiting assembly. The riveting assembly is used to perform riveting operations on the top rod and the insert. The limiting assembly includes a limiting member that is slidably disposed. The limiting member has two limiting portions on its side near the position fixture. The position fixture has two limiting holes corresponding to the two limiting portions. When the limiting member moves toward the corresponding position fixture, the two limiting portions are respectively inserted into the two limiting holes and penetrate deep into the position fixture until they abut against the bottom of the top rod protrusion ring. By adopting the above technical solution, the two limiting portions can respectively insert into the two limiting holes of the position fixture and penetrate deep into the position fixture to abut against the bottom of the top rod protrusion ring when the limiting member moves toward the position fixture. In this way, when the riveting assembly performs riveting operations on the push rod and insert, the limiting assembly can precisely limit the push rod. Because during the riveting process, the push rod may shift or wobble due to pressure, and the limiting part abuts against the bottom of the push rod's protruding ring, unnecessary movement of the push rod in the horizontal and vertical directions can be restricted, allowing the push rod and insert to maintain a stable relative position during riveting. Preferably, the unloading mechanism includes an ejection assembly and an unloading clamping assembly. The ejection assembly is movably disposed at the bottom of the turntable assembly, and its output end penetrates through the bottom of the base and connects to the support platform. The support platform is slidably disposed on the inner wall of the base. When the ejection assembly pushes the support platform vertically upward, thereby causing the product to protrude from the positioning hole, the unloading clamping assembly moves downward and clamps the product out of the corresponding workstation. By adopting the above technical solution, the ejection assembly of the unloading mechanism is movably disposed at the bottom of the turntable assembly, and its output end penetrates through the bottom of the base and connects to the support platform slidably disposed on the inner wall of the base.When the ejector assembly operates, it pushes the support platform vertically upward. Since the product is placed on the support platform, the upward movement of the platform causes the product to move upward until it is exposed in the positioning hole. This makes the product's position easier for the unloading clamping assembly to operate. The unloading clamping assembly moves downward, accurately clamping the exposed product and moving it out of the corresponding workstation. Preferably, the system further includes a detection mechanism, which comprises a first detection component, a second detection component, a third detection component, and a fourth detection component evenly distributed within the intermittent transmission mechanism. Each of the intermittent transmission mechanism has a detection station corresponding to the first, second, third, and fourth detection components, and each station is equipped with the positioning fixture. The first detection component is positioned between the push rod feeding mechanism and the insert feeding mechanism to detect the presence of a push rod at its corresponding detection station. The second detection component is positioned between the insert feeding mechanism and the riveting mechanism to detect the presence of an insert at its corresponding detection station. The third detection component is positioned between the riveting mechanism and the unloading mechanism to provide a buffer during processing idle periods. The fourth detection component is positioned between the unloading mechanism and the push rod feeding mechanism to detect the presence of a product at its corresponding detection station. By adopting the above technical solution, a detection mechanism is provided in the automatic riveting machine for pin components, and this detection mechanism includes a first detection component, a second detection component, a third detection component, and a fourth detection component evenly distributed within the intermittent transmission mechanism. The first detection component is positioned between the ejector feeding mechanism and the insert feeding mechanism. After the ejector feeding mechanism completes ejector feeding, the first detection component can promptly detect whether an ejector is present at the corresponding detection station. If no ejector is detected, a problem in the ejector feeding process can be identified in time, avoiding waste in subsequent insert feeding and riveting operations, and ensuring the continuity and effectiveness of the production process. The second detection component is positioned between the insert feeding mechanism and the riveting mechanism. After insert feeding, it can detect whether an insert is present at the corresponding detection station. If no insert is detected, an insert feeding fault can be promptly investigated, preventing riveting operations from being performed without inserts, thus improving riveting quality and efficiency. The third detection component is positioned between the riveting mechanism and the unloading mechanism, acting as a processing idle station, matching the rotation pattern of the turntable parts, and playing a buffering role in operation. The fourth detection component is positioned between the unloading mechanism and the top rod loading mechanism. Before a product enters the next loading cycle, it checks whether a product is present at the corresponding detection station. If no product is detected, it checks for problems in the unloading process, ensuring complete unloading and improving the product qualification rate and production efficiency. If no product is detected, it smoothly rotates to the processing station of the top rod loading mechanism, completing one product processing cycle. Overall, the placement and reasonable distribution of these detection components enable comprehensive monitoring and timely feedback of the entire automatic riveting process for pin components, significantly improving the quality and efficiency of pin component production.

[0010] In summary, this application includes at least one of the following beneficial technical effects:

[0011] 1. The automatic riveting machine for pin components is equipped with an intermittent transmission mechanism. Along its conveying direction, a top rod feeding mechanism, a insert feeding mechanism, a riveting mechanism, and a discharge mechanism are arranged sequentially. The intermittent transmission mechanism is equipped with a positioning fixture and a processing station, enabling intermittent conveying of the top rod and insert. The top rod feeding mechanism conveys the top rod to the positioning fixture, the insert feeding mechanism conveys the insert and inserts it into the top rod within the positioning fixture, the riveting mechanism performs the riveting operation, and the discharge mechanism removes the product. Through the coordinated work of these mechanisms, the riveting of pin components is automated, reducing manual intervention in the riveting process and thus improving production efficiency, meeting the needs of large-scale production.

[0012] 2. The intermittent transmission mechanism includes a turntable assembly and an angle control assembly. The angle control assembly is used to precisely control the single rotation angle of the turntable assembly, so that the positioning fixture can accurately and intermittently rotate to each processing station. The horizontal rotation mode of the turntable assembly allows the operation of each station to be connected in an orderly manner, reducing the waiting time between each process and improving the continuity and efficiency of automatic riveting of the pin parts.

[0013] 3. An inspection mechanism was set up to comprehensively monitor and provide timely feedback on the entire production process of automatic riveting of pin components, which greatly improved the quality and efficiency of pin component production. Attached Figure Description

[0014] Figure 1 is a structural diagram of an automatic riveting machine for pin components according to this application;

[0015] Figure 2 is a structural diagram of the riveted product of an automatic riveting machine for pin components according to this application;

[0016] Figure 3 is a structural diagram of the positioning fixture of an automatic riveting machine for pin components according to this application;

[0017] Figure 4 is a magnified view of point A in Figure 1;

[0018] Figure 5 is a structural diagram of an automatic riveting machine for pin components according to this application from another perspective.

[0019] Figure 6 is a top view of an automatic riveting machine for pin components according to this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Intermittent transmission mechanism; 2. Top rod feeding mechanism; 3. Insert feeding mechanism; 4. Riveting mechanism; 5. Unloading mechanism; 6. Detection mechanism; 7. Top rod; 8. Insert; 11. Positioning fixture; 12. Turntable assembly; 13. Angle control assembly; 111. Base; 112. Cover plate; 113. Buffer structure; 1111. Supporting platform; 1112. Slide groove; 1113. Alternating hole; 1121. Positioning hole; 1122. Limiting hole; 21. Top rod vibratory feeder assembly; 22. Top rod movement... 23. Feeding component; 221. Top rod clamping component; 222. First slider; 222. Second slider; 223. Receiving groove; 231. Sliding component; 232. Lifting component; 233. Clamping component; 31. Insert vibratory feeder assembly; 32. Insert lifting component; 33. Insert clamping component; 41. Riveting component; 42. Limiting component; 421. Limiting part; 51. Ejection component; 52. Unloading clamping component; 61. First detection component; 62. Second detection component; 63. Third detection component; 64. Fourth detection component. Detailed Implementation

[0021] The present application will be further described in detail below with reference to Figures 1-6.

[0022] This application provides an automatic riveting machine for pin components. Referring to Figure 1, it includes an intermittent transmission mechanism 1 arranged in a ring, a top rod feeding mechanism 2, a insert feeding mechanism 3, a riveting mechanism 4, and a bottom feeding mechanism 5 sequentially arranged around the intermittent transmission mechanism 1 along its conveying direction, and a detection mechanism 6 for detecting the processing effect of the top rod feeding mechanism 2, the insert feeding mechanism 3, the riveting mechanism 4, and the bottom feeding mechanism 5. The intermittent transmission mechanism 1 has four processing stations and four detection stations along its conveying path corresponding to the positions of the top rod feeding mechanism 2, the insert feeding mechanism 3, the riveting mechanism 4, the bottom feeding mechanism 5, and the detection mechanism 6. The four processing stations and four detection stations are arranged circumferentially in an alternating manner. The installation of the top rod and the insert in this embodiment is shown in Figure 2.

[0023] Specifically, the intermittent transmission mechanism 1 of this embodiment includes positioning fixtures 11, a turntable assembly 12, and an angle control assembly 13. The turntable assembly 12 rotates horizontally around its vertical axis. The positioning fixtures 11 are evenly and circumferentially arranged on the top of the turntable assembly 12, with positioning fixtures 11 provided for each of the four processing stations and four inspection stations, resulting in a total of eight positioning fixtures 11 on the turntable. The angle control assembly 13 is located at the bottom of the turntable assembly 12 and is used to precisely control the single rotation angle of the turntable assembly 12. The turntable assembly 12 consists of a circular turntable, which can be made of metal, such as stainless steel, to ensure sufficient strength and stability. The turntable is connected to the drive device through a central rotating shaft, enabling horizontal rotation around the vertical axis.

[0024] In this embodiment, the angle control component 13 employs a combination of a motor and an encoder. The motor drives the turntable assembly 12 to rotate, while the encoder precisely monitors the rotation angle, ensuring that each rotation angle meets the set requirements. Alternatively, in other embodiments, the angle control component 13 can be a hydraulic drive combined with an angle sensor. The hydraulic drive provides a larger driving force, while the angle sensor provides real-time angle feedback for precise control. The turntable assembly 12 and the angle control component 13 are connected via a signal. The angle control component 13 controls the turntable assembly 12 to rotate a fixed angle each time according to a preset program, ensuring that the positioning fixture 11 accurately reaches each processing station. This combination makes the entire intermittent transmission more precise and stable, providing a reliable transmission foundation for subsequent operations such as loading, riveting, and unloading.

[0025] Referring to Figure 3, the positioning fixture 11 in this embodiment includes a base 111 and a cover plate 112. The base 111 has a rectangular box-shaped structure and a cavity structure. The base 111 is evenly distributed circumferentially on the turntable surface of the turntable assembly 12. The cover plate 112 is disposed on the top of the base 111 and has a positioning hole 1121 for positioning the push rod 7. A support platform 1111 is disposed inside the base 111 at the position corresponding to the positioning hole 1121. The push rod feeding mechanism 2 clamps and conveys the push rod 7 so that the end of the push rod 7 passes through the positioning hole 1121 to the support platform 1111, and the head end of the push rod 7 is exposed on the surface of the cover plate 112. The base 111 is made of a metal material, such as aluminum alloy, which has a certain strength and corrosion resistance. Its cavity structure can be obtained by casting or machining. The cover plate 112 is a rectangular flat plate made of metal. The positioning hole 1121 is machined by drilling, and its size is adapted to the end of the push rod 7 to ensure that the push rod 7 can pass through accurately. When the push rod feeding mechanism 2 conveys the push rod 7, the end of the push rod 7 passes through the positioning hole 1121 and falls on the support platform 1111. At this time, the head end of the push rod 7 is exposed on the surface of the cover plate 112, which facilitates the subsequent insertion and riveting of the insert 8. This structural design of the positioning fixture 11 can accurately position the push rod 7 and ensure the stability of the push rod 7 during conveying and processing.

[0026] Furthermore, a buffer structure 113 is provided between the base 111 and the cover plate 112. The buffer structure 113 acts on the cover plate 112, allowing the cover plate 112 to move vertically against the top of the base 111. The buffer structure 113 is a set of two springs symmetrically distributed. Each spring is connected at both ends to the base 111 and the cover plate 112, respectively. A guide post is provided in the middle of each spring to guide the spring to move only axially. When the riveting mechanism 4 presses down, the cover plate 112 will be under pressure, and the springs will be compressed, thus buffering the pressure and preventing excessive pressure from damaging the top rod 7 and the insert 8. At the same time, the downward movement of the cover plate 112 facilitates the subsequent riveting operation.

[0027] Specifically, the push rod feeding mechanism 2 in this embodiment includes a push rod vibratory feeder assembly 21, a push rod transfer assembly 22, and a push rod clamping assembly 23. The push rod vibratory feeder assembly 21 is used to arrange and convey the push rods 7 with their ends facing downwards. The push rod transfer assembly 22 is used to transfer the push rods 7 from the discharge end of the push rod vibratory feeder assembly 21 to the preparatory position one by one. The push rod clamping assembly 23 is used to clamp the push rods 7 and convey them to the positioning hole 1121 of the positioning clamp 11 at the feed end of the turntable assembly 12.

[0028] Referring to Figure 4, the top rod vibratory feeder assembly 21 consists of a vibratory feeder and a controller. The vibratory feeder has a spiral track inside, and the top rod 7 is arranged on the track in the X-axis direction and moves towards the discharge end with its end facing down through vibration. The controller can adjust the frequency and amplitude of the vibration.

[0029] Referring to Figure 4, the push rod conveying assembly 22 includes a first slider 221 and a second slider 222. Both the first slider 221 and the second slider 222 are slidably disposed at the discharge port of the push rod vibratory feeder assembly 21. The bottoms of the first slider 221 and the second slider 222 are provided with a track arranged along the Y-axis. The bottoms of the first slider 221 and the second slider 222 are connected to an electric push rod, so that the two sliders can slide synchronously along the Y-axis direction on the track by the electric push rod. The first slider 221 and the second slider 222 are made of metal material and the surface is smoothed to reduce friction. A receiving groove 223 is formed between the first slider 221 and the second slider 222 to accommodate one push rod 7. The receiving groove 223 is connected to the discharge port of the push rod vibratory feeder assembly 21. When the push rod vibratory feeder assembly 21 conveys the push rod 7 to the receiving groove 223, the first slider 221 and the second slider 222 drive the push rod 7 to move synchronously along the Y-axis direction to the ready position, in preparation for the next clamping action of the push rod clamping assembly 23.

[0030] Referring to Figure 4, the push rod clamping assembly 23 consists of a sliding member 231, a lifting member 232, and a clamping member 233. The sliding member 231 is located near the discharge end of the push rod vibratory feeder assembly 21. The sliding member 231 is a combination of a linear guide rail and a slider, with the slider sliding on the guide rail. The lifting member 232 is located on the slider, and the slider drives the lifting member 232 to move. The lifting member 232 is an electric push rod capable of vertical extension and retraction. The output end of the electric push rod is equipped with a clamping member 233 for clamping the push rod 7. The clamping member 233 is a pneumatic gripper, and the opening and closing of the gripper is controlled by air pressure to clamp and release the push rod 7. The sliding member 231 is used to drive the lifting member 232 to reciprocate between the preparatory position and the corresponding working position. The lifting member 232 is used to drive the clamping member 233 to reciprocate vertically, for removing the push rod 7 from the preparatory position and placing the push rod 7 into the positioning fixture 11 of the corresponding working position. When the push rod 7 is in the ready position, the lifting member 232 descends, the clamping member 233 clamps the push rod 7, then the lifting member 232 rises, the sliding member 231 moves the lifting member 232 and the clamping member 233 to the corresponding work position, the lifting member 232 descends again, and places the push rod 7 into the positioning fixture 11.

[0031] Referring to Figure 5, specifically, the insert feeding mechanism 3 of this embodiment includes an insert vibratory feeder assembly 31, an insert lifting assembly 32, and an insert clamping assembly 33. The insert vibratory feeder assembly 31 is used to arrange and convey the inserts 8 with the insert opening facing upwards. The insert lifting assembly 32 is used to lift the inserts 8 at the discharge end of the insert vibratory feeder assembly 31 one by one for clamping. The insert clamping assembly 33 is used to clamp the inserts 8 and convey them to the positioning fixture 11 above the corresponding station, aligning the insert opening of the insert 8 with the top rod 7 and inserting it.

[0032] The insert vibratory plate assembly 31 consists of a vibratory plate and a controller. The vibratory plate has a spiral track inside. Vibration causes the inserts 8 to be arranged in the Y-axis direction on the track and move towards the discharge end with the inserts facing upwards. The controller can adjust the frequency and amplitude of the vibration. Its working principle is similar to that of the top rod vibratory plate assembly 21.

[0033] Referring to Figure 5, the insert lifting assembly 32 is a lifting cylinder. The lifting cylinder is located directly below the discharge port of the insert vibrating plate assembly 31. When the insert 8 reaches the discharge end, the lifting cylinder lifts the insert 8 upward to a certain height, so that the insert clamping assembly 33 can clamp it.

[0034] The insert clamping assembly 33 can adopt a structure similar to the top rod clamping assembly 23. Through the cooperation of the sliding member and the lifting member, the insert 8 is conveyed to the top of the positioning fixture 11, and then lowered to align the insertion port of the insert 8 with the head end of the top rod 7 and insert it.

[0035] Referring to Figure 5, specifically, the riveting mechanism 4 of this embodiment includes a riveting assembly 41 and a limiting assembly 42. The riveting assembly 41 is used to perform riveting operations on the top rod 7 and the insert 8. The limiting assembly 42 includes a limiting member, which is driven to slide by an electric push rod. The limiting member has two limiting portions 421 arranged in parallel in the horizontal direction on the side near the positioning fixture 11. The cover plate 112 has two limiting holes 1122 corresponding to the two limiting portions 421. The height of the limiting hole 1122 is greater than the thickness of the limiting portion 421. That is to say, the limiting portion 421 can have a certain amount of vertical movement space in the limiting hole 1122, which facilitates the movement of the cover plate 112 in the vertical direction. Specifically, the cover plate in this embodiment is provided with four limiting holes 1122, two in a group, and the two groups are symmetrically arranged on both sides of the cover plate 112. When the limiting member moves toward the corresponding positioning fixture 11, the two limiting parts 421 are respectively inserted into the two limiting holes 1122 and penetrate deep into the positioning fixture 11 until they abut against the bottom of the protruding ring of the top rod 7. The riveting assembly 41 consists of a servo press and a pressure head. The servo press can provide sufficient pressure for riveting operations, and the servo press drives the pressure head to move down to the surface of the insert 8.

[0036] Referring to Figure 5, the pressure head in this embodiment has a relief groove in the middle. When the pressure head presses down, the top end of the push rod 7 is inserted into the relief groove, so that the edge of the pressure head abuts against the top of the insert 8. After applying a certain pressure, the insert 8 is inserted into the protruding ring of the push rod 7 to achieve riveting. The limiting component is made of metal material. The limiting part 421 is a rectangular strip structure, which is machined by milling or turning. The limiting hole 1122 is a rectangular strip. The limiting hole 1122 is machined on the positioning fixture 11, and its size is adapted to the limiting part 421. When riveting is performed, the limiting component moves first, so that the limiting part 421 is inserted into the limiting hole 1122 and abuts against the bottom of the protruding ring of the push rod 7 in the base 111 to limit the push rod 7. Then the servo press starts to press down, and the pressure head presses against the top of the insert 8. The cover plate 112 also moves down during this process to ensure that the pressure head rivets the insert 8 and the push rod 7 into place.

[0037] Referring to Figure 3, specifically, the unloading mechanism 5 in this embodiment includes an ejector component 51 and an unloading clamping component 52. The ejector component 51 is movably disposed at the bottom of the turntable assembly 12. The ejector component 51 is an electric push rod, whose output end passes through the turntable and the base 111 in sequence and abuts against the support platform 1111 inside the base 111. The inner wall of the base 111 is provided with a vertical "T"-shaped slide groove 1112. The support platform 1111 slides vertically on the "T"-shaped slide groove 1112. The extension and retraction movement of the ejector component 51 pushes the support platform 1111 upward. The turntable and each base 111 are provided with a clearance hole 1113 corresponding to the position of the ejector component 51 to ensure that the output end of the ejector component 51 can smoothly pass through the clearance hole 1113 and abut against the bottom of the support platform 1111. When the ejector component 51 pushes the support platform 1111 to move vertically upward, the support platform 1111 can drive the product to be exposed in the positioning hole 1121. The unloading clamping assembly 52 can also use a pneumatic gripper to remove the product from the positioning fixture 11 and move it out of the corresponding station through the actions of lowering, clamping and raising, and transfer the product through the sliding member 231. Its working principle is similar to that of the top rod clamping assembly 23.

[0038] Referring to Figure 6, further, the detection mechanism 6 of this embodiment includes a first detection component 61, a second detection component 62, a third detection component 63, and a fourth detection component 64 evenly distributed in the intermittent transmission mechanism 1. The intermittent transmission mechanism 1 is provided with detection stations corresponding to the first detection component 61, the second detection component 62, the third detection component 63, and the fourth detection component 64, and each is provided with a positioning fixture 11. The first detection component 61 is located between the push rod feeding mechanism 2 and the insert feeding mechanism 3, and is used to detect whether the push rod 7 exists in its corresponding detection station. The second detection component 62 is located between the insert feeding mechanism 3 and the riveting mechanism 4, and is used to detect whether the insert 8 exists in its corresponding detection station. The third detection component 63 is located between the riveting mechanism 4 and the unloading mechanism 5, and plays a buffering role when the processing wheel is empty. The fourth detection component 64 is located between the unloading mechanism 5 and the push rod feeding mechanism 2, and is used to detect whether the product exists in its corresponding detection station. In this embodiment, the first detection component 61, the second detection component 62, the third detection component 63, and the fourth detection component 64 are each equipped with a sensor at each detection station. These sensors are infrared sensors. The third detection station, in particular, uses a sensor to detect whether a product exists after riveting. In other embodiments, the third detection station may not have a sensor, serving only as a buffer during processing downtime. When an abnormality is detected at any detection station, a signal can be promptly sent to the automatic riveting machine's control system. The control system then controls the operation of each mechanism or makes corresponding adjustments to ensure production continuity and product quality.

[0039] The specific processing technology is as follows:

[0040] Turntable rotation: Angle control component 13 controls the turntable component 12 to rotate at a fixed angle, so that the positioning fixture 11 with the top rod 7 placed on it moves sequentially to the first inspection station, the insert loading station, the second inspection station, the riveting station, the third inspection station, the unloading station, and the fourth inspection station, and then rotates back to the top rod loading station. The above steps are repeated to achieve continuous processing.

[0041] Top rod feeding: The top rod vibratory feeder assembly 21 arranges the top rods 7 with their ends facing downwards and conveys them to the discharge end through vibration. The first slider 221 and the second slider 222 of the top rod transfer assembly 22 move the top rods 7 from the discharge end to the preparatory position. The sliding member 231 of the top rod clamping assembly 23 drives the lifting member 232 and the clamping member 233 to the preparatory position. The lifting member 232 descends to make the clamping member 233 clamp the top rod 7. Then the lifting member 232 rises, and the sliding member 231 moves it to the positioning fixture 11 of the corresponding station. The lifting member 232 descends to place the top rod 7 into the positioning fixture 11. The end of the top rod 7 passes through the positioning hole 1121 to the support platform 1111, and the head end is exposed on the surface of the cover plate 112. Then it rotates to the first detection station to check whether the top rod 7 exists in the positioning hole 1121. If it exists, it continues to rotate to the insert feeding station. If it does not exist, the equipment reacts in time and stops running.

[0042] Insert feeding: The insert vibratory feeder assembly 31 arranges the inserts 8 with the inserts facing upwards and conveys them to the discharge end. The insert lifting assembly 32 lifts the inserts 8 at the discharge end, and the insert clamping assembly 33 clamps the inserts 8 and conveys them to the positioning fixture 11 above the corresponding station. Then, it descends and aligns the inserts 8 with the head of the push rod 7 for insertion. Then, it rotates to the second detection station to check whether there are inserts 8 in the positioning hole 1121. If there are, it continues to rotate to the riveting station. If there are no inserts, the equipment reacts in time and stops running.

[0043] Riveting operation: The limiting components move, causing the two limiting parts 421 to insert into the two limiting holes 1122 of the positioning fixture 11 and penetrate deep into the interior to abut against the bottom of the convex ring of the push rod 7, thus limiting the push rod 7. Subsequently, the riveting assembly 41 performs a riveting operation on the push rod 7 and the insert 8, so that the insert 8 and the annular groove of the convex ring of the push rod 7 are interference-fitted, completing the riveting. Then, it rotates to the third inspection station to check whether there is a product in the positioning hole 1121. If there is, it continues to rotate to the unloading station; if there is no product, the equipment reacts in time and stops operating.

[0044] Unloading operation: The ejector component 51 pushes the support platform 1111 to move vertically upward, causing the product to be exposed in the positioning hole 1121. The unloading clamping component 52 moves downward and clamps the product, then rises and moves out of the corresponding station, completing the product unloading. Then it rotates to the fourth detection station to check whether there is a product in the positioning hole 1121. If there is, it continues to rotate back to the ejector loading station. If there is no product, the equipment reacts in time and stops operating.

[0045] The implementation principle of this embodiment is as follows: the automatic riveting machine for pin components intermittently transmits the push rod 7 and the insert 8 to different processing stations through the intermittent transmission mechanism 1. Each feeding mechanism accurately feeds the materials, the riveting mechanism 4 performs the riveting, the unloading mechanism 5 removes the products, and the detection mechanism 6 monitors the production process in real time. This reduces manual intervention, improves production efficiency, and lowers the defect rate. It is especially suitable for riveting irregularly shaped pin components, providing a reliable solution for the automated production of pin components.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic riveting machine for pin components, characterized in that, The system includes an intermittent transmission mechanism (1) and a top rod feeding mechanism (2), a insert feeding mechanism (3), a riveting mechanism (4), and a discharge mechanism (5) arranged sequentially along the transmission direction of the intermittent transmission mechanism (1). The intermittent transmission mechanism (1) is provided with processing stations along its transmission path corresponding to the positions of the top rod feeding mechanism (2), the insert feeding mechanism (3), the riveting mechanism (4), and the discharge mechanism (5), for the purpose of realizing the intermittent transmission of the top rod (7) and the insert (8). The intermittent transmission mechanism (1) is equipped with several positioning fixtures (11) for placing the top rod (7) and the insert (8). The top rod feeding mechanism (2) is used to transmit the top rod (7) to the positioning fixture (11) at the corresponding station. The insert feeding mechanism (3) is used to transmit the insert (8) to the positioning fixture (11) at the corresponding station and insert the top rod (7) into the positioning fixture (11). The riveting mechanism (4) is used to press down onto the top of the positioning fixture (11) at the corresponding work station to perform riveting operations on the insert (8) and the push rod (7) to obtain the product; the unloading mechanism (5) is used to remove the product from the positioning fixture (11) at the corresponding work station; the intermittent transmission mechanism (1) also includes a turntable assembly (12) and an angle control assembly (13). The turntable assembly (12) rotates horizontally around its vertical axis. The positioning fixture (11) is evenly circumferentially arranged on the top of the turntable assembly (12). The angle control assembly (13) is arranged at the bottom of the turntable assembly (12) to precisely control the single rotation angle of the turntable assembly (12); the positioning fixture (11) includes a base (111) and a cover plate (112). The base (111) is arranged on the turntable assembly (12) and has a cavity structure. The cover plate (112) is disposed on the top of the base (111). The cover plate (112) is provided with a positioning hole (1121). The base (111) is provided with a support platform (1111) at the position corresponding to the positioning hole (1121). The top rod feeding mechanism (2) clamps and conveys the top rod (7) so that the end of the top rod (7) passes through the positioning hole (1121) to the support platform (1111). The head end of the top rod (7) is exposed on the surface of the cover plate (112). A buffer structure (113) is provided between the base (111) and the cover plate (112). The cover plate (112) can move and abut against the top of the base (111) in the vertical direction.The riveting mechanism (4) includes a riveting assembly (41) and a limiting assembly (42). The riveting assembly (41) is used to rivet the top rod (7) and the insert (8). The limiting assembly (42) includes a limiting member that is slidably disposed. The side of the limiting member near the positioning fixture (11) is provided with two limiting portions (421). The positioning fixture (11) is provided with two limiting holes (1122) corresponding to the two limiting portions (421). When the limiting member moves toward the corresponding positioning fixture (11), the two limiting portions (421) are respectively inserted into the two limiting holes (1122) and penetrate deep into the positioning fixture (11) until they abut against the bottom of the protruding ring of the top rod (7).

2. The automatic riveting machine for pin components according to claim 1, characterized in that, The top rod feeding mechanism (2) includes: a top rod vibratory feeder assembly (21), a top rod transfer assembly (22), and a top rod clamping assembly (23). The top rod vibratory feeder assembly (21) is used to arrange and convey the top rods (7) with their ends facing downwards. The top rod transfer assembly (22) is used to transfer the top rods (7) at the discharge end of the top rod vibratory feeder assembly (21) one by one to the preparatory position. The top rod clamping assembly (23) includes a sliding member (231), a lifting member (232), and a clamping member (233). The sliding member (231) is close to the top rod. The vibratory feeder assembly (21) is provided with a discharge end. The sliding member (231) is provided with a lifting member (232). The lifting member (232) is provided with a clamping member (233) for clamping the top rod (7). The sliding member (231) drives the lifting member (232) to move back and forth between the preparatory position and the corresponding working position. The lifting member (232) drives the clamping member (233) to move back and forth in the vertical direction for taking out the top rod (7) from the preparatory position and placing the top rod (7) to the positioning fixture (11) of the corresponding working position.

3. The automatic riveting machine for pin components according to claim 2, characterized in that, The push rod transfer assembly (22) includes a first slider (221) and a second slider (222). A receiving groove (223) for accommodating a push rod (7) is formed between the first slider (221) and the second slider (222). When the push rod vibrating plate assembly (21) transfers the push rod (7) to the receiving groove (223), the first slider (221) and the second slider (222) drive the push rod (7) to move synchronously in a direction perpendicular to the transfer direction of the push rod (7) to the preparatory position.

4. The automatic riveting machine for pin components according to claim 1, characterized in that, The insert feeding mechanism (3) includes an insert vibratory feeder assembly (31), an insert lifting assembly (32), and an insert clamping assembly (33). The insert vibratory feeder assembly (31) is used to arrange and convey the inserts (8) with the inserts facing upwards. The insert lifting assembly (32) is used to lift the inserts (8) at the discharge end of the insert vibratory feeder assembly (31) one by one for clamping. The insert clamping assembly (33) clamps the inserts (8) and conveys them to the position fixture (11) above the corresponding station, aligns the inserts (8) with the top rod (7), and inserts them.

5. The automatic riveting machine for pin components according to claim 1, characterized in that, The feeding mechanism (5) includes an ejection component (51) and a feeding clamping component (52). The ejection component (51) is movably disposed at the bottom of the turntable component (12). The output end of the ejection component (51) passes through the bottom of the base (111) and is connected to the support platform (1111). The support platform (1111) is slidably disposed on the inner wall of the base (111). When the ejection component (51) pushes the support platform (1111) to move vertically upward, the product is exposed in the positioning hole (1121). The feeding clamping component (52) moves downward and clamps the product to move out of the corresponding work station.

6. The automatic riveting machine for pin components according to claim 1, characterized in that, It also includes a detection mechanism (6), which includes a first detection component (61), a second detection component (62), a third detection component (63), and a fourth detection component (64) evenly distributed on the intermittent transmission mechanism (1). The intermittent transmission mechanism (1) is provided with detection stations for the first detection component (61), the second detection component (62), the third detection component (63), and the fourth detection component (64), and each of them is provided with the positioning fixture (11). The first detection component (61) is located between the top rod feeding mechanism (2) and the insert plate. Between the feeding mechanism (3), it is used to detect whether there is a top rod (7) at its corresponding detection station; the second detection component (62) is set between the insert feeding mechanism (3) and the riveting mechanism (4) to detect whether there is an insert (8) at its corresponding detection station; the third detection component (63) is set between the riveting mechanism (4) and the unloading mechanism (5) to play a buffer role when the processing wheel is empty; the fourth detection component (64) is set between the unloading mechanism (5) and the top rod feeding mechanism (2) to detect whether there is a product at its corresponding detection station.

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