An automatic riveting machine

Abstract

The application discloses an automatic riveting machine, which comprises a frame, an upper die conveying mechanism, a lower die conveying mechanism, an upper die punching mechanism and a lower die connecting mechanism. The innovation mainly lies in the lower die connecting mechanism, which comprises a lower die driving assembly, a lower die connecting part and a lower die punching part. The lower die driving assembly drives the lower die connecting part and the lower die punching part to move sequentially through a connecting driving part with a first action surface and a second action surface. During work, the lower die connecting part first bends the claw end of the claw buckle at the bending part of the punching position, and then the lower die punching part goes up to flatten the bent claw end, thereby completing a high-strength and high-reliability riveting process. The application realizes the two core actions of bending and flattening through single automatic operation, effectively simplifies the equipment structure and improves the riveting strength. The application has the beneficial effects of high riveting strength and simple equipment structure.

Description

Technical Field

[0001] This invention relates to the field of automated processing equipment technology, and in particular to an automatic riveting machine. Background Technology

[0002] In the assembly process of hardware parts, clothing accessories, and other products, riveting components consisting of claw buckles and bottom buckles are often used for connection. Automatic riveting machines are key equipment for realizing the automatic feeding, alignment, and pressing of such parts, and their performance directly affects production efficiency and the connection quality of the products.

[0003] In existing technologies, automated equipment for riveting male and female buckles is quite common. The typical working method involves an upper die mechanism applying downward pressure to press the claw end of the male buckle into the buckle cup of the female buckle, causing plastic deformation to achieve locking. However, the reliability of this process highly depends on the support and fit of the lower die on the female buckle. Some existing solutions use a simple rigid die as the base to receive the female buckle; under pressure, the claw end of the male buckle can only expand outwards, resulting in limited clamping force and a risk of loosening. More advanced solutions attempt to use complex multi-power-source drive structures to separately control the bending and shaping actions. While this improves riveting quality, it also leads to bulky equipment structures, high manufacturing costs, and complex synchronization and control logic between multiple power sources, increasing equipment failure rates and maintenance difficulty.

[0004] Existing technologies often rely on rigid riveting with a single action or require multiple power systems to complete complex actions, resulting in technical defects such as insufficient riveting strength and complex equipment structure. Summary of the Invention

[0005] The main objective of this invention is to propose an automatic riveting machine that addresses the technical problems of insufficient riveting strength and complex equipment structure in existing technologies, which rely heavily on rigid riveting with a single action or require multiple power systems to complete composite actions.

[0006] To achieve the above objectives, the present invention provides an automatic riveting machine, comprising:

[0007] frame;

[0008] The upper mold conveying mechanism is located at the head of the frame and is used to convey the claw buckles;

[0009] The lower mold conveying mechanism is located below the upper mold conveying mechanism and is used to convey the bottom buckle;

[0010] The upper die buckling mechanism is located at the conveying end of the upper die conveying mechanism. It includes an upper die buckling drive component and an upper die buckling component, and is configured such that the upper die buckling component is driven by the upper die buckling drive component to apply a vertically downward force.

[0011] A lower die buckling mechanism, located at the conveying end of a lower die conveying mechanism, includes a lower die drive assembly, a lower die buckling component, and a lower die top buckling component. The lower die drive assembly includes a lower die drive component and a buckling transmission component. The buckling transmission component includes a first working surface and a second working surface, which are movably connected to the bottom of the lower die buckling component and the lower die top buckling component, respectively. The lower die buckling component includes a buckling position at the top, which has a bent portion and a through receiving channel below. The lower die top buckling component is movably disposed in the receiving channel. The buckling transmission component is an eccentric wheel, and the first and second working surfaces are the annular surfaces of the two-stage rotating wheels of the eccentric wheel, respectively. The first working surface is the outer wheel annular surface, and the second working surface is the inner wheel annular surface. The radial dimension of the outer wheel is larger than that of the inner wheel. Under the action of the lower die drive component, the buckling transmission component drives the lower die buckling component to bend the claw end of the buckle through the first working surface, and drives the lower die top buckling component to flatten the claw end through the second working surface.

[0012] Furthermore, the bending portion includes a first inclined surface and a second inclined surface arranged opposite to each other, with an upper opening for accommodating the channel defined between the first inclined surface and the second inclined surface, and the first inclined surface and the second inclined surface are inclined toward the opening.

[0013] Furthermore, the receiving channel includes a lifting channel and a limiting channel. The lifting channel is located at the upper part of the receiving channel and is connected to the opening. The limiting channel is located at the lower part of the receiving channel, and the side of the limiting channel is wider than that of the lifting channel. The lower mold top buckle component includes a lifting part and a limiting part. The lifting part is located above the limiting part, and the side of the limiting part is wider than that of the lifting part. The lifting part can extend from the limiting channel into the lifting channel to the buckle position, while the limiting part limits the range of motion within the limiting channel.

[0014] Furthermore, it also includes a mechanical vibratory plate, which includes an upper mold vibratory plate and a lower mold vibratory plate respectively located on both sides of the frame. The upper mold vibratory plate and the lower mold vibratory plate respectively transport the claw buckle and the bottom buckle to the conveying start end of the upper mold conveying mechanism and the lower mold conveying mechanism. The lower mold conveying mechanism includes a first lower mold conveying component and a second lower mold conveying component arranged at a preset angle. The first lower mold conveying component is arranged parallel to the upper mold conveying mechanism and located directly below it. The lower mold vibratory plate is connected to the start end of the second lower mold conveying component, and the end end of the second lower mold conveying component is connected to the lateral inlet of the first lower mold conveying component.

[0015] Furthermore, the first lower die conveying assembly and the second lower die conveying assembly are arranged vertically. The upper die conveying mechanism includes an upper die conveying drive and an upper die conveying assembly. The upper die conveying assembly includes an upper die push rod and an upper ejector seat. The upper ejector seat includes an upper transport cavity and an upper connecting cavity. The upper die push rod is movably disposed in the upper transport cavity, and the upper connecting cavity is used to dock with the upper die vibrating plate. The first lower die conveying assembly includes a first lower die conveying drive, a first lower die push rod, and a first lower die ejector seat. The first lower die ejector seat includes a first lower transport cavity and a first lower connecting cavity. The first lower die push rod can extend into the first lower transport cavity, and the first lower connecting cavity is used to dock with the second lower die conveying assembly. The second lower die conveying assembly includes a second lower die conveying drive, a second lower die push rod, and a second lower die ejector seat. The second lower die ejector seat includes a second lower transport cavity and a second lower connecting cavity. The second lower die push rod can extend into the second lower transport cavity, and the second lower connecting cavity is used to dock with the lower die vibrating plate.

[0016] Furthermore, the end of the second lower die push rod is provided with a placement groove perpendicular to the second lower transport cavity. The placement groove is configured such that after being driven out of the second lower transport cavity by the second lower die conveying drive, it is directly aligned with the conveying start end of the first lower transport cavity.

[0017] Furthermore, the second lower die conveying assembly also includes a pad for supporting the second lower die push rod to prevent wear.

[0018] Furthermore, the pad includes a slider and a guide rail. The slider is slidably connected to the guide rail and is located above the guide rail. The slider is fixedly connected to the second lower mold push rod. The bottom of the second lower transport cavity is recessed, and the guide rail is located in the recess.

[0019] Furthermore, the upper die buckling drive component is a motor, and a buckling transmission assembly is provided between the upper die buckling drive component and the upper die buckling component. The upper die buckling component is eccentrically set on the upper die buckling drive component through the buckling transmission assembly, and is configured such that, driven by the upper die buckling drive component, it drives itself to rotate eccentrically and move downward and return to its original position through the buckling transmission assembly.

[0020] The technical solution of this invention includes a frame, an upper die conveying mechanism, a lower die conveying mechanism, an upper die snapping mechanism, and a lower die snapping mechanism. Its innovation lies primarily in the lower die snapping mechanism, which includes a lower die driving assembly, a lower die snapping component, and a lower die top snapping component. The lower die driving assembly, through a snapping transmission component with a first and a second working surface, simultaneously drives the lower die snapping component and the lower die top snapping component to move sequentially. During operation, the lower die snapping component first bends the claw end of the snapping claw at its snapping position, and then the lower die top snapping component moves upward to flatten the bent claw end, thereby completing a high-strength, high-reliability riveting process. This invention achieves the two core actions of bending and flattening through a single automated operation, effectively simplifying the equipment structure and improving the riveting strength. This invention has the beneficial effects of high riveting strength and a simple equipment structure. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a plan view of the present invention;

[0023] Figure 3 A schematic diagram showing the three-dimensional structure of the upper mold conveying mechanism, lower mold conveying mechanism, upper mold buckling mechanism, lower mold fastening mechanism, and padding cloth cutting mechanism.

[0024] Figure 4 This is a three-dimensional structural diagram of the lower mold fastening mechanism;

[0025] Figure 5 This is an exploded view of the lower mold fastening mechanism;

[0026] Figure 6 This is a three-dimensional structural diagram of the lower mold fastening component;

[0027] Figure 7 A planar structural sectional view showing the fit between the lower mold connecting component and the lower mold top fastening component;

[0028] Figure 8 A three-dimensional structural diagram showing the cooperation between the upper mold conveying mechanism and the lower mold conveying mechanism;

[0029] Figure 9 Schematic diagram of the exploded structure of the upper mold conveying mechanism and the lower mold conveying mechanism. Figure 1 ;

[0030] Figure 10 Schematic diagram of the exploded structure of the upper mold conveying mechanism and the lower mold conveying mechanism. Figure 2 ;

[0031] Figure 11 3D structural diagram of the second lower mold conveyor assembly Figure 1 ;

[0032] Figure 12 3D structural diagram of the second lower mold conveyor assembly Figure 2 ;

[0033] Figure 13 This is an exploded structural diagram of the second lower mold conveyor assembly;

[0034] Figure 14 A three-dimensional structural diagram showing the cooperation between the upper die buckling drive component and the buckling transmission assembly;

[0035] Figure 15 This is a three-dimensional structural diagram of the upper mold fastening component;

[0036] Figure 16 This is an exploded structural diagram of the upper mold buckle component.

[0037] The above figures include the following reference numerals:

[0038] 10. Frame; 1. Upper die conveying mechanism; 11. Upper die conveying drive unit; 12. Upper die conveying assembly; 121. Upper die push rod; 122. Upper ejector seat; 1221. Upper transport cavity; 1222. Upper connecting cavity; 2. Lower die conveying mechanism; 21. First lower die conveying assembly; 211. First lower die conveying drive unit; 212. First lower die push rod; 213. First lower die ejector seat; 2131. First lower transport cavity; 2132. First lower connecting cavity; 22. Second lower die conveying assembly Components; 221, Second lower die conveying drive unit; 222, Second lower die push rod; 2221, Placement groove; 223, Second lower die ejector seat; 2231, Second lower transport cavity; 22311, Recess; 2232, Second lower connecting cavity; 224, Pad; 2241, Slider; 2242, Guide rail; 3, Upper die snapping mechanism; 31, Upper die snapping drive component; 32, Upper die snapping component; 321, Base; 3211, Fixing rod; 3212, Sliding part; 3213, Buffer 32131, guide rod; 32132, spring; 3214, anti-slap hand assembly; 32141, anti-slap hand guard; 32142, slide block; 32143, guard drive component; 322, clamp; 3221, first gripper; 3222, second gripper; 33, snap-fit ​​transmission assembly; 331, snap-fit ​​eccentric wheel; 332, support base; 4, lower die snap-fit ​​mechanism; 41, lower die drive assembly; 411, lower die drive component; 412, snap-fit ​​transmission component; 41 21. First working surface; 4122. Second working surface; 42. Lower mold fastening component; 421. Fastening position; 422. Bending part; 4221. First inclined surface; 4222. Second inclined surface; 423. Accommodation channel; 4231. Opening; 4232. Lifting channel; 4233. Limiting channel; 43. Lower mold top fastening component; 431. Lifting part; 432. Limiting part; 5. Pad cutting mechanism; 61. Upper mold vibratory plate; 62. Lower mold vibratory plate; 7. Application program board; 8. Tray. Detailed Implementation

[0039] The technical solutions in 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 a part of the embodiments of the present invention, and not all of them. 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.

[0040] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] This invention proposes an automatic riveting machine.

[0043] In embodiments of the present invention, such as Figures 1 to 16As shown, the automatic riveting machine includes a frame 10 and other components for riveting. These components include an upper die conveying mechanism 1, a lower die conveying mechanism 2, an upper die snapping mechanism 3, and a lower die snapping mechanism 4. The upper die conveying mechanism 1 is located at the head of the frame 10 and is used to convey the claw snaps. The lower die conveying mechanism 2 is located below the upper die conveying mechanism 1 and is used to convey the bottom snaps. The upper die snapping mechanism 3 is located at the conveying end of the upper die conveying mechanism 1 and includes an upper die snapping drive component 31 and an upper die snapping component 32, configured such that the upper die snapping component 32 is driven by the upper die snapping drive component 31 to apply a vertically downward force. The lower die snapping mechanism 4 is located at the conveying end of the lower die conveying mechanism 2 and includes a lower die drive assembly 41, a lower die snapping component 42, and a lower die top snapping part. Component 43, the lower mold drive assembly 41 includes a lower mold drive component 411 and a snap-fit ​​transmission component 412. The snap-fit ​​transmission component 412 includes a first working surface 4121 and a second working surface 4122. The first working surface 4121 and the second working surface 4122 are respectively transmissively connected to the bottom of the lower mold snap-fit ​​component 42 and the lower mold top snap-fit ​​component 43. The lower mold snap-fit ​​component 42 includes a snap-fit ​​position 421 at the top, the snap-fit ​​position 421 is provided with a bent portion 422, and a through receiving channel 423 is provided below. The lower mold top snap-fit ​​component 43 is movably provided in the receiving channel 423. The snap-fit ​​transmission component 412 is configured such that, under the action of the lower mold drive component 411, the first working surface 4121 drives the lower mold snap-fit ​​component 42 to bend the claw end of the snap-fit, and the second working surface 4122 drives the lower mold top snap-fit ​​component 43 to flatten the claw end.

[0044] It should be noted beforehand that although the scope of protection of this invention is not limited to claw buckles and bottom buckles, the riveting principle of claw buckles and bottom buckles is also an important part of this invention. Therefore, the following description is provided for reference. The claw buckle referred to in this invention is a snap-lock structure with the claw end as the riveting point, while the bottom buckle is a snap-lock structure with a reserved riveting hole for the claw end to extend into. Under the driving action of the upper mold snap-lock component 32 driven by the upper mold snap-lock driving component 31, the claw buckle impacts the bottom buckle downward, causing the claw end to extend into the riveting hole. Subsequently, the snap-lock transmission component 412 is driven by the lower mold driving component 41, and the lower mold snap-lock component 42 and the lower mold top snap-lock component 43 are raised respectively through the first working surface 4121 and the second working surface 4122, so that the bending part 422 and the top of the lower mold top snap-lock component 43 bend and flatten the claw end of the claw buckle.

[0045] Furthermore, the driving components in this invention can be driven by conventional technologies in the art, such as motors and cylinders. The choice can be made based on the specific workstation's requirements for precision, efficiency, and cost. For example, stepper motors or servo motors are preferred for buttoning workstations with high precision requirements, while cylinders can be used for conveying workstations primarily used for pushing. The driving components in this invention are automatically controlled by the application program board 7 (i.e., PLC), thereby achieving automated processes. This part is prior art and will not be elaborated upon.

[0046] In some embodiments of the present invention, a specific and suitable assembly method for the bending portion 422 and the receiving channel 423 is proposed to better realize the bending and flattening operation of the claw buckle. The bending portion 422 includes a first inclined surface 4221 and a second inclined surface 4222 arranged opposite to each other. An upper opening 4231 of the receiving channel 423 is defined between the first inclined surface 4221 and the second inclined surface 4222. At the same time, the first inclined surface 4221 and the second inclined surface 4222 are inclined toward the opening 4231. The above-mentioned matching method of the bending portion 422 and the receiving channel 423 makes the overall structure more compact and simple. The purpose of tilting the first inclined surface 4221 and the second inclined surface 4222 toward the opening 4231 is to make the claw end bend inward, which meets the general riveting requirements. At the same time, since the opening 4231 of the receiving channel 423 is located between the first inclined surface 4221 and the second inclined surface 4222, the inward bending is more conducive to the direct engagement of the claw end of the claw buckle with the lower die top buckle component 43.

[0047] Specifically, the technical contents of the receiving channel 423 and the lower mold top fastening component 43 are defined here to facilitate the normal operation of the lower mold top fastening component 43. The receiving channel 423 includes a lifting channel 4232 and a limiting channel 4233. The lifting channel 4232 is located at the upper part of the receiving channel 423 and is connected to the opening 4231. The limiting channel 4233 is located at the lower part of the receiving channel 423, and the side of the limiting channel 4233 is wider than that of the lifting channel 4232. The lower mold top fastening component 43 includes a lifting part 431 and a limiting part 432. The lifting part 431 is located above the limiting part 432. The side of the limiting part 432 is wider than that of the lifting part 431. The lifting part 431 can extend from the limiting channel 4233 into the lifting channel 4232 to the fastening position 421, while the limiting part 432 limits the range of motion within the limiting channel 4233. The key point of this structure is that, through the separate setting of the lifting channel 4232 and the limiting channel 4233, the lower mold top buckle component 43 can limit its vertical movement range with the limiting part 432.

[0048] Specifically, the latching transmission component 412 is an eccentric wheel, and the first working surface 4121 and the second working surface 4122 are the annular surfaces of the two-stage rotating wheels of the eccentric wheel, wherein the first working surface 4121 is the outer wheel annular surface and the second working surface 4122 is the inner wheel annular surface; the radial dimension of the outer wheel is larger than that of the inner wheel. More specifically, with the lower mold latching component 42 and the lower mold top latching component 43 as references at the lowest point of the first working surface 4121 and the second working surface 4122, the radial dimensions of the first working surface 4121 and the second working surface 4122 gradually increase; the first working surface 4121 is configured such that after the lower mold latching component 42 is pushed to the highest point, its radial dimension remains unchanged, while the radial dimension of the second working surface 4122 continues to increase simultaneously, and independently lifts the lower mold top latching component 43 to the opening 4231.

[0049] In some embodiments of the present invention, the lower mold fastening mechanism 4 is equipped with a padding cloth cutting mechanism 5 in the horizontal direction. The padding cloth cutting mechanism 5 is used to cut the original cloth strip to be processed into padding cloth of a predetermined size and guide it to a predetermined position. This is the prior art and will not be described in detail.

[0050] In some embodiments of the present invention, a tray 8 is provided above the lower mold fastening mechanism 4 and the padding cloth cutting mechanism 5. The tray 8 is used to place the materials to be processed (such as cloth, cloth strips, etc.). This part is prior art and will not be described in detail.

[0051] In some embodiments of the present invention, a mechanical vibratory feeder is also included. The mechanical vibratory feeder includes an upper mold vibratory feeder 61 and a lower mold vibratory feeder 62 respectively disposed on both sides of the frame 10. The upper mold vibratory feeder 61 and the lower mold vibratory feeder 62 respectively transport the claw buckle and the bottom buckle to the starting end of the upper mold conveying mechanism 1 and the lower mold conveying mechanism 2. The mechanical vibratory feeder is a prior art component and will not be described in detail. It is worth noting that when the bottom buckle is narrow and long, it is prone to rolling or deflection during the conveying process, resulting in misalignment and inability to accurately reach the riveting station in the preset direction, thereby affecting the riveting quality. To solve the above technical problems, the present invention has made a special design for the lower mold conveying mechanism 2: the lower mold conveying mechanism 2 includes a first lower mold conveying component 21 and a second lower mold conveying component 22 arranged at a preset angle. The first lower mold conveying component 21 is arranged parallel to the upper mold conveying mechanism 1 and located directly below it. The lower mold vibratory feeder 62 is connected to the starting end of the second lower mold conveying component 22, and the end of the second lower mold conveying component 22 is connected to the lateral entrance of the first lower mold conveying component 21. The core advantage of this structure lies in its ability to achieve secondary directional transmission of the bottom buckle. Specifically, the bottom buckle is first output from the lower mold vibratory plate 62 and enters the second lower mold conveying assembly 22. Subsequently, the second lower mold conveying assembly 22 pushes the bottom buckle into its interior at a preset angle (such as perpendicular) to the conveying direction of the first lower mold conveying assembly 21. This lateral pushing action effectively corrects any deflection that may have occurred in the previous stage, ensuring that the bottom buckle is tightly attached to the inner wall of the first lower mold conveying assembly 21 and is ultimately conveyed by the first lower mold conveying assembly 21 to the bottom mold fastening mechanism 4 in a fixed and correct posture, thereby ensuring the reliability and consistency of the riveting process.

[0052] Specifically, the preset included angle is a right angle, the first lower mold conveying assembly 21 and the second lower mold conveying assembly 22 are arranged perpendicularly, the upper mold conveying mechanism 1 includes an upper mold conveying drive unit 11 and an upper mold conveying assembly 12, the upper mold conveying assembly 12 includes an upper mold push rod 121 and an upper outlet fastener 122, the upper outlet fastener 122 includes an upper transport cavity 1221 and an upper connecting cavity 1222, the upper mold push rod 121 is movably disposed in the upper transport cavity 1221, and the upper connecting cavity 1222 is used to dock with the upper mold vibrating plate 61; the first lower mold conveying assembly 21 includes a first lower mold conveying drive unit 211, a first lower mold push rod 212 and a first lower mold outlet fastener 213. The first lower die ejector seat 213 includes a first lower transport cavity 2131 and a first lower connecting cavity 2132. The first lower die push rod 212 can extend into the first lower transport cavity 2131, and the first lower connecting cavity 2132 is used to dock with the second lower die conveying assembly 22. The second lower die conveying assembly 22 includes a second lower die conveying drive part 221, a second lower die push rod 222, and a second lower die ejector seat 223. The second lower die ejector seat 223 includes a second lower transport cavity 2231 and a second lower connecting cavity 2232. The second lower die push rod 222 can extend into the second lower transport cavity 2231, and the second lower connecting cavity 2232 is used to dock with the lower die vibrating plate 62.

[0053] Specifically, the end of the second lower die push rod 222 is provided with a placement groove 2221 perpendicular to the second lower transport cavity 2231. The placement groove 2221 is configured such that, after being driven out of the second lower transport cavity 2231 by the second lower die conveying drive unit 221, it is directly aligned with the conveying start end of the first lower transport cavity 2131. The placement groove 2221 can limit the positioning of the fastener to a certain extent, preventing the fastener from shifting significantly during the conveying process.

[0054] In some embodiments of the present invention, the second lower die conveying assembly 22 further includes a pad 224 for supporting the second lower die push rod 222 to prevent wear. It is understood that the second lower die push rod 222 will inevitably wear against each other during the sliding process of the second lower transport cavity 2231. To solve this problem, a pad 224 is provided below the second lower die push rod 222 to separate the second lower die push rod 222 from the second lower transport cavity 2231, thereby achieving the technical effect of preventing wear and extending the service life of the product.

[0055] Specifically, the pad 224 includes a slider 2241 and a guide rail 2242. The slider 2241 is slidably connected to the guide rail 2242 and is located above the guide rail 2242. The slider 2241 is fixedly connected to the second lower die push rod 222. The bottom of the second lower transport cavity 2231 is recessed 22311, and the guide rail 2242 is located in the recessed 22311. After the second lower die push rod 222 is acted upon by the second lower die conveying drive unit 221, the second lower die push rod 222 and the slider 2241 move together along the guide rail 2242. This structure can effectively prevent wear during the conveying process. When maintenance is required, only the slider 2241, which has relatively low maintenance costs, needs to be replaced to restore the equipment performance. There is no need to replace or repair the more expensive push rod or outlet seat. This structure greatly reduces maintenance costs and downtime.

[0056] In some embodiments of the present invention, the upper die snapping drive component 31 is a motor, and a snapping transmission assembly 33 is provided between the upper die snapping drive component 31 and the upper die snapping component 32. The upper die snapping component 32 is eccentrically connected to the output end of the motor through the snapping transmission assembly 33, so that the rotation center of the upper die snapping component 32 does not coincide with the rotation center of the motor. The upper die snapping mechanism 3 is configured such that, driven by the upper die snapping drive component 31, it drives itself to rotate eccentrically and perform periodic downward and return movements through the snapping transmission assembly 33. It should be emphasized that the present invention uses the above structure to replace the complex transmission chain composed of a stroke screw, crank, and connecting rod commonly used in the prior art. The prior art solution requires multiple components to convert rotational motion into linear motion, resulting in problems such as bulky structure, complex assembly, many friction points, and easy generation of gaps and wear. The present invention directly realizes the periodic downward and return movements of the upper die snapping component 32 by transmitting the rotational action of the motor through the snapping transmission assembly 33, thereby saving assembly and simplifying the overall structure.

[0057] Specifically, the snap-fit ​​transmission assembly 33 includes a snap-fit ​​eccentric wheel 331 and a support base 332. The support base 332 is fixedly connected to the snap-fit ​​eccentric wheel 331 and moves with the snap-fit ​​eccentric wheel 331 as it rotates. The support base 332 is connected to the upper die snap-fit ​​component 32. The support base 332 mainly serves to enhance the stability of the connection.

[0058] Specifically, the upper die snap-fit ​​component 32 includes a base 321 and a clamp 322. A fixing rod 3211 extends from the bottom of the base 321. The clamp 322 is located below the base 321 and is used to grip the snap-fit. The clamp 322 includes a first jaw 3221 and a second jaw 3222 respectively located on both sides of the fixing rod 3211. The fixing rod 3211, the first jaw 3221, and the second jaw 3222 together limit the snap-fit. The base 321 has a buffer structure 3213 inside to cope with the periodic snap-fit ​​action. The buffer structure 3213 mainly uses a guide rod 32131 and a spring 32132 to form a buffer.

[0059] Specifically, the seat 321 has a sliding part 3212 on its side, and an anti-slapping component 3214 is provided in cooperation with the sliding part 3212. The anti-slapping component 3214 includes an anti-slapping guard 32141 and a slide block 32142. The anti-slapping guard 32141 is slidably connected to the sliding part 3212 via the slide block 32142. A guard driving component 32143 is also provided above the anti-slapping guard 32141. The guard driving component 32143 is preferably a cylinder.

[0060] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made based on the inventive concept of the present invention and the description and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic riveting machine, characterized in that, include: frame; The upper mold conveying mechanism is located at the head of the frame and is used to convey the claw buckles; The lower mold conveying mechanism is located below the upper mold conveying mechanism and is used to convey the bottom buckle; The upper die buckling mechanism is located at the conveying end of the upper die conveying mechanism. It includes an upper die buckling drive component and an upper die buckling component, and is configured such that the upper die buckling component is driven by the upper die buckling drive component to apply a vertically downward force. A lower die buckling mechanism, located at the conveying end of a lower die conveying mechanism, includes a lower die drive assembly, a lower die buckling component, and a lower die top buckling component. The lower die drive assembly includes a lower die drive component and a buckling transmission component. The buckling transmission component includes a first working surface and a second working surface, which are movably connected to the bottom of the lower die buckling component and the lower die top buckling component, respectively. The lower die buckling component includes a buckling position at the top, which has a bent portion and a through receiving channel below. The lower die top buckling component is movably disposed in the receiving channel. The buckling transmission component is an eccentric wheel, and the first and second working surfaces are the annular surfaces of the two-stage rotating wheels of the eccentric wheel, respectively. The first working surface is the outer wheel annular surface, and the second working surface is the inner wheel annular surface. The radial dimension of the outer wheel is larger than that of the inner wheel. Under the action of the lower die drive component, the buckling transmission component drives the lower die buckling component to bend the claw end of the buckle through the first working surface, and drives the lower die top buckling component to flatten the claw end through the second working surface.

2. The automatic riveting machine as described in claim 1, characterized in that: The bending portion includes a first inclined surface and a second inclined surface arranged opposite to each other, and an upper opening for accommodating a channel is defined between the first inclined surface and the second inclined surface. At the same time, the first inclined surface and the second inclined surface are inclined toward the opening.

3. The automatic riveting machine as described in claim 2, characterized in that: The receiving channel includes a lifting channel and a limiting channel. The lifting channel is located at the upper part of the receiving channel and is connected to the opening. The limiting channel is located at the lower part of the receiving channel, and the side of the limiting channel is wider than that of the lifting channel. The lower mold top buckle component includes a lifting part and a limiting part. The lifting part is located above the limiting part, and the side of the limiting part is wider than that of the lifting part. The lifting part can extend from the limiting channel into the lifting channel to the buckle position, while the limiting part limits the range of motion within the limiting channel.

4. The automatic riveting machine as described in claim 1, characterized in that: It also includes a mechanical vibratory plate, which includes an upper mold vibratory plate and a lower mold vibratory plate respectively located on both sides of the frame. The upper mold vibratory plate and the lower mold vibratory plate respectively transport the claw buckle and the bottom buckle to the starting end of the upper mold conveying mechanism and the lower mold conveying mechanism. The lower mold conveying mechanism includes a first lower mold conveying component and a second lower mold conveying component arranged at a preset angle. The first lower mold conveying component is arranged parallel to the upper mold conveying mechanism and located directly below it. The lower mold vibratory plate is connected to the starting end of the second lower mold conveying component, and the end of the second lower mold conveying component is connected to the lateral inlet of the first lower mold conveying component.

5. The automatic riveting machine as described in claim 4, characterized in that: The first lower die conveying assembly and the second lower die conveying assembly are arranged vertically. The upper die conveying mechanism includes an upper die conveying drive and an upper die conveying assembly. The upper die conveying assembly includes an upper die push rod and an upper ejector seat. The upper ejector seat includes an upper transport cavity and an upper connecting cavity. The upper die push rod is movably disposed in the upper transport cavity, and the upper connecting cavity is used to dock with the upper die vibrating plate. The first lower die conveying assembly includes a first lower die conveying drive, a first lower die push rod, and a first lower die ejector seat. The first lower die ejector seat includes a first lower transport cavity and a first lower connecting cavity. The first lower die push rod can extend into the first lower transport cavity, and the first lower connecting cavity is used to dock with the second lower die conveying assembly. The second lower die conveying assembly includes a second lower die conveying drive, a second lower die push rod, and a second lower die ejector seat. The second lower die ejector seat includes a second lower transport cavity and a second lower connecting cavity. The second lower die push rod can extend into the second lower transport cavity, and the second lower connecting cavity is used to dock with the lower die vibrating plate.

6. The automatic riveting machine as described in claim 5, characterized in that: The end of the second lower die push rod is provided with a placement groove perpendicular to the second lower transport cavity. The placement groove is configured such that after being driven out of the second lower transport cavity by the second lower die conveying drive, it is directly aligned with the conveying start end of the first lower transport cavity.

7. The automatic riveting machine as described in claim 5 or 6, characterized in that: The second lower die conveying assembly also includes pads for supporting the second lower die push rod to prevent wear.

8. The automatic riveting machine as described in claim 7, characterized in that: The pad includes a slider and a guide rail. The slider is slidably connected to the guide rail and is located above the guide rail. The slider is fixedly connected to the second lower mold push rod. The bottom of the second lower transport cavity is recessed, and the guide rail is located in the recess.

9. The automatic riveting machine as described in claim 1, characterized in that: The upper die buckling drive component is a motor. A buckling transmission assembly is provided between the upper die buckling drive component and the upper die buckling component. The upper die buckling component is eccentrically set on the upper die buckling drive component through the buckling transmission assembly, and is configured such that, driven by the upper die buckling drive component, it drives itself to rotate eccentrically and move downward and return to its original position through the buckling transmission assembly.

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