Punch riveting switching device and riveting machine

Abstract

The present application relates to a kind of punching riveting switching device and riveting machine, belong to riveting machine technical field, riveting machine includes punching portion, riveting portion and feeding portion, punching portion has punch upper die and punch lower die, riveting portion has riveting upper die and riveting lower die, feeding portion has upper buckle feeding mechanism and lower buckle feeding mechanism, punching riveting switching device includes connecting rod driving portion, connecting rod driving portion has upper die driving mechanism, lower die driving mechanism and power mechanism.The upper die driving mechanism and lower die driving mechanism of the present application are simultaneously driven multiple parts to carry out corresponding action, therefore, when power output fails, corresponding multiple parts cannot act, can effectively prevent the collision of each part, so as to reduce failure rate, and only need to drive each part to carry out corresponding action by single power simultaneously, so that each action can be carried out simultaneously, so as to improve work efficiency.

Description

Technical Field

[0001] This invention relates to a punching and riveting switching device and a riveting machine, belonging to the field of riveting machine technology. Background Technology

[0002] Riveting machines, also known as button attaching machines, are widely used in garment factories and leather goods processing enterprises. They are mainly used to attach various types of metal buttons to knitted garments, down jackets, denim clothing, shoes, hats, leather products, etc. Buttons typically consist of top buttons and bottom buttons, which are respectively placed on the front and back of the fabric and riveted together using a riveting machine.

[0003] Most existing riveting machines use a single cylinder to drive the various parts of the riveting machine, but this method has the following disadvantages: First, it is easy for the corresponding part to fail to move due to cylinder failure. Once this happens, the part that cannot move will collide with other normally moving parts, resulting in a high failure rate. Second, in order to avoid interference, each action needs to be performed step by step, resulting in low work efficiency.

[0004] Therefore, in order to reduce the failure rate and improve work efficiency, a new riveting machine with an optimized structure is needed. Summary of the Invention

[0005] The purpose of this invention is to provide a punching and riveting switching device and a riveting machine that can reduce the failure rate and improve work efficiency.

[0006] This invention provides a punching and riveting switching device, installed inside a riveting machine, for driving the riveting machine to switch between punching and riveting processes. The riveting machine includes:

[0007] The punching section has an upper punching die and a lower punching die;

[0008] The riveting part has an upper riveting die and a lower riveting die;

[0009] The feeding section has an upper feeding mechanism and a lower feeding mechanism;

[0010] The punching and riveting switching device, having the following characteristics, includes:

[0011] The linkage drive section includes an upper die drive mechanism, a lower die drive mechanism, and a power mechanism. The power mechanism provides power to the upper die drive mechanism and the lower die drive mechanism.

[0012] The upper die driving mechanism is connected to the punching upper die, the riveting upper die, and the upper buckle feeding mechanism to drive the punching upper die, the riveting upper die, and the upper buckle feeding mechanism to perform corresponding actions simultaneously.

[0013] The lower die driving mechanism is connected to the punching lower die, the riveting lower die, and the lower buckle feeding mechanism to simultaneously drive the punching lower die, the riveting lower die, and the lower buckle feeding mechanism to perform corresponding actions.

[0014] The punching and riveting switching device provided by the present invention may also have the following features:

[0015] When the upper punching die and the lower punching die are activated, they move between their respective punching positions and clearance positions. When the upper riveting die and the lower riveting die are activated, they move between their respective material picking positions and riveting positions. When the upper buckle feeding mechanism and the lower buckle feeding mechanism are activated, they move between their respective material receiving positions and material feeding positions.

[0016] The punching and riveting switching device provided by the present invention may also have the following features:

[0017] The upper mold driving mechanism includes:

[0018] Upper drive shaft; and

[0019] Two sets of conversion linkages, one of which has an input end connected to the upper drive shaft and an output end connected to the punching upper die and the riveting upper die;

[0020] The input end of the other set of conversion linkages is connected to the upper drive shaft, and the output end is connected to the upper feeding mechanism.

[0021] The punching and riveting switching device provided by the present invention may also have the following features:

[0022] The lower die drive mechanism includes:

[0023] Lower drive shaft;

[0024] Adapter shaft;

[0025] The adapter link has an input end connected to the lower drive shaft and an output end connected to the adapter shaft, used to power engage the lower drive shaft and the adapter shaft;

[0026] Two sets of conversion linkages, one set of which has its input end connected to the lower drive shaft and its output end connected to the riveting lower die, and the other set of which has its input end connected to the adapter shaft and its output end connected to the lower buckle feeding mechanism;

[0027] A lifting drive assembly is used to drive the riveting lower die to move between the material picking position and the riveting position; the output end of the conversion linkage is connected to the riveting lower die through the lifting drive assembly; and

[0028] A delay drive component is used to drive the lower punch die to move between the punching position and the clearance position. Its input end is connected to the adapter shaft, and its output end is connected to the lower punch die.

[0029] The punching and riveting switching device provided by the present invention may also have the following features:

[0030] The conversion linkage includes:

[0031] Input linkage; and

[0032] Output linkage,

[0033] One end of the input link is hinged to one end of the output link.

[0034] The other end of the input link constitutes the input end of the conversion link section, and the other end of the output link constitutes the output end of the conversion link section.

[0035] The punching and riveting switching device provided by the present invention may also have the following features:

[0036] The lifting drive assembly includes:

[0037] The lifting component can rotate between a first position and a second position. When it is in the first position, the riveting lower die is in the riveting position, and when it is in the second position, the riveting lower die is in the material taking position.

[0038] The movable component indirectly or directly abuts against and drives the lower end of the lifting component, and the output end of the conversion linkage is hinged to the movable component to drive the movable component to move in a first direction or the opposite direction of the first direction.

[0039] The lifting component, indirectly or directly abutting against the upper end of the lifting member, and the riveting lower mold fixed to the upper end of the lifting component; and

[0040] The first elastic reset element is used to give the lifting element a downward tendency.

[0041] When the moving member moves along the first direction, it engages with the lifting member and drives the lifting member to rotate toward the first position.

[0042] When the moving member moves in the opposite direction to the first direction, the lifting member rotates towards the second position under the action of the gravity of the lifting member and / or the reset force of the first elastic reset member.

[0043] The punching and riveting switching device provided by the present invention may also have the following features:

[0044] The lower end of the lifting member has a lifting drive part, and the moving member has a rolling part that abuts against the lifting drive part.

[0045] The lifting drive unit includes:

[0046] When the first driving part is in the first position, it abuts against the rolling part, and at this time the first driving part is in a horizontal state;

[0047] The second driving unit is inclined upward relative to the first driving unit; and

[0048] The third drive unit is inclined downward relative to the second drive unit. When in the second position, it abuts against the rolling part, at which point the third drive unit is in a horizontal state.

[0049] The second driving unit is located between the first driving unit and the third driving unit.

[0050] The punching and riveting switching device provided by the present invention may also have the following features:

[0051] The delay driving component includes:

[0052] The delay link has one end fixedly connected to the adapter shaft and the other end has a delay stroke groove;

[0053] The transmission connecting rod has a mating rod at one end, and the mating rod extends movably into the delay stroke groove.

[0054] Transmission shaft;

[0055] The reset link has one end fixedly connected to the transmission shaft and the other end hinged to the other end of the transmission link;

[0056] The second elastic reset element is used to drive the reset linkage to rotate back to its original position; and

[0057] The drive linkage has one end fixedly connected to the transmission shaft and the other end having a drive groove. The lower punching die has a drive rod that extends movably into the drive groove.

[0058] When the adapter shaft rotates in the second direction, after the delay connecting rod rotates at a certain angle, the mating rod abuts against a side wall in the extension direction of the delay stroke groove, thereby driving the punching die to move toward the punching position;

[0059] When the adapter shaft rotates in the opposite direction of the second direction, the reset link rotates back to its original position under the action of the second elastic reset member, thereby driving the punching die to move toward the clearance position.

[0060] The punching and riveting switching device provided by the present invention may also have the following features:

[0061] The power mechanism includes:

[0062] A first power unit is used to drive the upper drive shaft to rotate; and

[0063] A second power unit is used to drive the lower drive shaft to rotate; or...

[0064] The power mechanism includes:

[0065] A power unit for driving the upper drive shaft or the lower drive shaft to rotate; and

[0066] A power engagement portion is used to power engage the upper drive shaft and the lower drive shaft.

[0067] The present invention provides a riveting machine, characterized by including the punching and riveting switching device as described above.

[0068] Therefore, the present invention has the following advantages compared with the prior art:

[0069] According to the punching and riveting switching device and riveting machine of the present invention, the riveting machine includes a frame, a punching and riveting switching device, a punching drive device, an upper buckle feeding device, and a lower buckle feeding device. The riveting machine further includes a punching section, a riveting section, and a feeding section. The punching section has an upper punching die and a lower punching die, the riveting section has an upper riveting die and a lower riveting die, and the feeding section has an upper buckle feeding mechanism and a lower buckle feeding mechanism. The punching and riveting switching device includes a linkage drive section, which has an upper die drive mechanism, a lower die drive mechanism, and a power mechanism. When the upper die drive mechanism is working, it can simultaneously drive the punching and riveting machine. The upper die for punching, the upper die for riveting, and the upper feeding mechanism for buckling perform corresponding actions. When the lower die drive mechanism is working, it can simultaneously drive the lower die for punching, the lower die for riveting, and the lower feeding mechanism for buckling to perform corresponding actions. Since both the upper and lower die drive mechanisms drive multiple parts to perform corresponding actions simultaneously, when the power output fails, the corresponding multiple parts will not be able to move, which can effectively prevent collisions between the parts and reduce the failure rate. Moreover, only a single power source is needed to drive each part to perform corresponding actions simultaneously, so that each action can be performed at the same time, thereby improving work efficiency. Attached Figure Description

[0070] Figure 1 This is a three-dimensional structural schematic diagram of the riveting machine in Embodiment 1 of the present invention;

[0071] Figure 2 This is a three-dimensional structural schematic diagram of the punching and riveting switching device in Embodiment 1 of the present invention;

[0072] Figure 3 This is a three-dimensional structural diagram of the riveting machine in the punching process of Embodiment 1 of the present invention;

[0073] Figure 4 This is a three-dimensional structural diagram of the riveting machine in the riveting process of Embodiment 1 of the present invention;

[0074] Figure 5 This is a three-dimensional structural diagram of the stamping drive device in one direction according to Embodiment 1 of the present invention;

[0075] Figure 6 This is a three-dimensional structural diagram of the stamping drive device in another direction according to Embodiment 1 of the present invention;

[0076] Figure 7 This is a cross-sectional view of one of the stamping rods in Embodiment 1 of the present invention;

[0077] Figure 8 This is a three-dimensional structural diagram of the upper feeding mechanism in Embodiment 1 of the present invention;

[0078] Figure 9 This is a three-dimensional structural diagram of the lower feeding mechanism in Embodiment 1 of the present invention;

[0079] Figure 10 This is a three-dimensional structural diagram of the upper mold driving mechanism in Embodiment 1 of the present invention;

[0080] Figure 11 This is a three-dimensional structural diagram of the lower mold driving mechanism in one direction in Embodiment 1 of the present invention;

[0081] Figure 12 This is a three-dimensional structural diagram of the lower mold drive mechanism after the frame is removed in Embodiment 1 of the present invention;

[0082] Figure 13 This is a three-dimensional structural diagram of the lower mold driving mechanism in another direction in Embodiment 1 of the present invention;

[0083] Figure 14 This is a three-dimensional structural schematic diagram of the lifting drive component in Embodiment 1 of the present invention;

[0084] Figure 15 This is a three-dimensional structural diagram of the lifting component in Embodiment 1 of the present invention;

[0085] Figure 16 This is a three-dimensional structural schematic diagram of the delay driving component in Embodiment 1 of the present invention;

[0086] Figure 17 This is a partial three-dimensional structural schematic diagram of the delay drive component in Embodiment 1 of the present invention;

[0087] Figure 18This is a front view structural diagram of the power mechanism in Embodiment 2 of the present invention.

[0088] The markings in the attached diagram are described as follows: riveting machine 100; frame 10; lower die base 11; crossbar 12; lifting groove 13; punching and riveting switching device 20;

[0089] Punching section 21; upper punching die 211; lower punching die 212; drive rod 2121;

[0090] Riveting part 22; riveting upper mold 221; riveting lower mold 222; feeding part 23;

[0091] Upper feeding mechanism 231; upper feeding plate 2311; upper feeding rod 2312; upper feeding seat 2313; lower feeding mechanism 232; lower feeding plate 2321; lower clamping rod 2322; lower clamping assembly 2323; clamping drive 2324; lower feeding seat 2325; elastic receiving component 233;

[0092] Linkage drive section 24; upper mold drive mechanism 241; upper drive shaft 2411; conversion link section 2412; input link 2412a; output link 2412b; lower mold drive mechanism 242; lower drive shaft 2421; adapter shaft 2422; connecting link section 2423; first driven link 2423a; second driven link 2423b; engagement link 2423c;

[0093] Lifting drive assembly 2424; lifting member 2424a; lifting drive part 10a; first drive part 11a; second drive part 12a; third drive part 13a; rolling part 10b; moving member 2424b; lifting member 2424c; first elastic reset member 2424d;

[0094] Delay drive assembly 2425; delay link 2425a; delay stroke groove 20a; mating rod 20b; transmission link 2425b; transmission shaft 2425c; reset link 2425d; second elastic reset element 2425e; drive link 2425f; drive groove 10f;

[0095] Power mechanism 243; First power unit 2431; Power linkage 2431a; Power source 2431b; Second power unit 2432; Power unit 2433; Power connection part 2434;

[0096] Stamping drive device 30; translation seat 31; two punch rods 32; punch rod return spring 33; punch rod drive mechanism 34; stamping rod 341; eccentric cam assembly 342; eccentric wheel 3421; eccentric shaft 3422; rotating sleeve 3423; moving seat 3424; reducer 343; drive motor 344;

[0097] Upper feeding device 40; lower feeding device 50. Detailed Implementation

[0098] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the punching and riveting switching device and riveting machine of the present invention will be specifically described below in conjunction with embodiments and accompanying drawings.

[0099] <Example 1>

[0100] This embodiment provides a punching and riveting switching device and a riveting machine that can reduce the failure rate and improve work efficiency.

[0101] Figure 1 This is a three-dimensional structural schematic diagram of the riveting machine in Embodiment 1 of the present invention.

[0102] like Figure 1 As shown, the riveting machine 100 of this embodiment includes a frame 10, a punching and riveting switching device 20, a stamping drive device 30, an upper buckle feeding device 40, and a lower buckle feeding device 50.

[0103] Figure 2 This is a three-dimensional structural schematic diagram of the punching and riveting switching device in Embodiment 1 of the present invention.

[0104] like Figure 2 As shown, the riveting machine 100 includes a punching section 21, a riveting section 22, and a feeding section 23. The punching section 21 has an upper punching die 211 and a lower punching die 212. The riveting section 22 has an upper riveting die 221 and a lower riveting die 222. The feeding section 23 has an upper feed mechanism 231 and a lower feed mechanism 232. The punching and riveting switching device 20 includes a linkage drive section 24. The linkage drive section 24 has an upper die drive mechanism 241, a lower die drive mechanism 242, and a power mechanism 243. The power mechanism 243 provides power to the upper die drive mechanism 241 and the lower die drive mechanism 242. The upper die drive mechanism 241 is drivenly connected to the upper punching die 211, the upper riveting die 221, and the upper feed mechanism 231 to simultaneously drive the upper punching die 211, the upper riveting die 221, and the upper feed mechanism 231 to perform corresponding actions. The lower die drive mechanism 242 is connected to the punching lower die 212, the riveting lower die 222 and the lower buckle feeding mechanism 232 to drive the punching lower die 212, the riveting lower die 222 and the lower buckle feeding mechanism 232 to perform corresponding actions.

[0105] Understandably, when the upper die drive mechanism 241 is working, it can simultaneously drive the punching upper die 211, the riveting upper die 221, and the upper buckle feeding mechanism 231 to perform corresponding actions. When the lower die drive mechanism 242 is working, it can simultaneously drive the punching lower die 212, the riveting lower die 222, and the lower buckle feeding mechanism 232 to perform corresponding actions. Since both the upper die drive mechanism 241 and the lower die drive mechanism 242 drive multiple parts to perform corresponding actions simultaneously, when the power output fails, the corresponding multiple parts will not be able to move, which can effectively prevent collisions between the parts, thereby reducing the failure rate. Moreover, only a single power source is needed to drive each part to perform corresponding actions simultaneously, so that each action can be performed at the same time, thereby improving work efficiency.

[0106] Figure 3 This is a three-dimensional structural diagram of the riveting machine in the punching process of Embodiment 1 of the present invention; Figure 4 This is a three-dimensional structural diagram of the riveting machine in the riveting process of Embodiment 1 of the present invention.

[0107] like Figure 3 and Figure 4 As shown, when the punching upper die 211 and punching lower die 212 are activated, they move between their respective punching positions and clearance positions. When the riveting upper die 221 and riveting lower die 222 are activated, they move between their respective material taking positions and riveting positions. When the upper buckle feeding mechanism 231 and the lower buckle feeding mechanism 232 are activated, they move between their respective material receiving positions and material feeding positions.

[0108] In this embodiment, the punching upper die 211, punching lower die 212, riveting upper die 221, upper buckle feeding mechanism 231 and lower buckle feeding mechanism 232 all move in the horizontal direction, while the riveting lower die 222 moves in the vertical direction.

[0109] like Figure 2 As shown, the feeding section 23 also has an elastic receiving member 233, which is used to receive the upper buckle workpiece conveyed by the upper buckle feeding mechanism 231. When the riveting upper die 221 is in the material picking position, the riveting upper die 221 is aligned with the elastic receiving member 233. In this embodiment, the structure of the elastic receiving member 233 is consistent with the structure of the "upper buckle device" disclosed in the invention patent application number CN2020227679341, so it will not be described in detail here.

[0110] like Figure 2 As shown, a lower die base 11 is provided on the frame 10, the riveting lower die 222 is movably mounted on the lower die base 11, and the punching lower die 212 is movably mounted on the lower die base 11.

[0111] Understandably, during punching, both the upper punching die 211 and the lower punching die 212 move to the punching position. At this position, the upper punching die 211 and the lower punching die 212 are aligned, and the lower punching die 212 is located directly above the riveting die 222. Both the upper riveting die 221 and the lower riveting die 222 move to the material receiving position. At this position, the upper riveting die 221 is aligned with the elastic receiving part 233. At the same time, the upper buckle feeding mechanism 231 moves to the receiving position, and the lower buckle feeding mechanism 232 moves to the feeding position. At this position, the feeding end of the lower buckle feeding mechanism 232 moves directly above the riveting die 222.

[0112] During riveting, both the riveting upper die 221 and the riveting lower die 222 move to the riveting position. At this position, the riveting upper die 221 and the riveting lower die 222 are aligned, and both the punching upper die 211 and the punching lower die 212 move to the clearance position. At the same time, the upper feeding mechanism 231 moves to the feeding position, and the lower feeding mechanism 232 moves to the receiving position. At this position, the feeding end of the upper feeding mechanism 231 moves directly above the elastic receiving member 233.

[0113] like Figure 3 and Figure 4 As shown, the stamping drive device 30 is used to drive the upper punching die 211 and the upper riveting die 221 to move up and down. When both the upper punching die 211 and the lower punching die 212 are in the punching position, the upper riveting die 221 is in the material taking position. The stamping drive device 30 drives the upper punching die 211 to move down and cooperate with the lower punching die 212 to punch the fabric placed on the lower punching die 212, thereby completing the punching process. At the same time, the stamping drive device 30 also drives the upper riveting die 221 to move down and clamp the upper buckle workpiece on the elastic receiving part 233. When both the upper riveting die 221 and the lower riveting die 222 are in the riveting position, the stamping drive device 30 drives the upper riveting die 221 to move down and cooperate with the lower riveting die 222, thereby riveting the upper buckle workpiece clamped at the lower end of the upper riveting die 221 to the lower buckle workpiece placed at the upper end of the lower riveting die 222 on the front and back sides of the fabric, thereby completing the riveting process.

[0114] Figure 5 This is a three-dimensional structural diagram of the stamping drive device in one direction according to Embodiment 1 of the present invention; Figure 6 This is a three-dimensional structural diagram of the stamping drive device in another direction in Embodiment 1 of the present invention.

[0115] like Figure 5 and Figure 6As shown, the stamping drive device 30 includes a translation seat 31, two punch rods 32, two punch rod return springs 33, and a punch rod drive mechanism 34. The translation seat 31 is movably mounted on the frame 10 via two sliding rods. The two punch rods 32 slide vertically through the translation seat 31, and the punching upper die 211 and riveting upper die 221 are respectively fixed to the lower ends of the two punch rods 32. The two punch rod return springs 33 are respectively sleeved on the two punch rods 32, with one end abutting against the upper surface of the translation seat 31 and the other end abutting against the upper end of the corresponding punch rod 32. The punch rod drive mechanism 34 includes two stamping rods 341, an eccentric cam assembly 342, a reducer 343, and a drive motor 344. The two stamping rods 341 are positioned above the two punch rods 32 and correspond one-to-one with the two punch rods 32. The two stamping rods 341 are slidably mounted on the frame 10. The drive motor 344 is connected to the eccentric cam assembly 342 via a reducer 343. The reducer 343 and the drive motor 344 are mounted on the frame 10. The eccentric cam assembly 342 includes an eccentric wheel 3421 connected to the output shaft of the reducer 343, an eccentric shaft 3422 mounted on the eccentric wheel 3421, a rotating sleeve 3423 fitted on the eccentric shaft 3422, and a movable seat 3424 with a sliding groove. The rotating sleeve 3423 is slidably fitted in the sliding groove, the lower end of the movable seat 3424 is hinged to the upper end of one of the stamping rods 341, and the circumferential surface of the eccentric wheel 3421 abuts against the upper end of the other stamping rod 341.

[0116] Understandably, when the riveting die 222 is in the material taking position, the two punch rods 32 are aligned with the two stamping rods 341 respectively. At this time, the drive motor 344 drives the eccentric wheel 3421 to rotate through the reducer 343. The eccentric shaft 3422 rotates accordingly and drives the rotating sleeve 3423 to move in the slide groove of the moving seat 3424. In addition, the return spring 33 of the punch rods restores the return action, thereby driving the two punch rods 32 to move up and down, thereby driving the punching die 211 and the riveting die 221 to move up and down.

[0117] When the riveting lower die 222 is in the riveting position, the punch 32 where the riveting lower die 222 is located is aligned with a punching rod 341. At this time, the drive motor 344 drives the eccentric wheel 3421 to rotate through the reducer 343. The eccentric shaft 3422 rotates accordingly and drives the rotating sleeve 3423 to move in the slide groove of the moving seat 3424. In addition, the return spring 33 of the punch rod restores the return action, thereby driving the punch 32 where the riveting lower die 222 is located to move up and down, thereby driving the riveting upper die 221 to move up and down.

[0118] Figure 7 This is a cross-sectional structural schematic diagram of one of the stamping rods in Embodiment 1 of the present invention.

[0119] like Figure 7As shown, the lower end of the stamping rod 341 used to drive the riveting upper die 221 to move downward and clamp the upper buckle workpiece on the elastic receiving part 233 is an elastic telescopic end. The stamping rod 341 is provided with a compression spring 3411 and a telescopic rod 3412. The telescopic rod 3412 extends from the lower end of the stamping rod 341 and forms the elastic telescopic end of the stamping rod 341. When the stamping rod 341 moves downward, it pushes the punch rod 32 where the riveting upper die 221 is located to move downward through its elastic telescopic end. This makes it so that when the two stamping rods 341 move downward, the distance that the riveting upper die 221 moves downward is less than the distance that the punching upper die 211 moves downward. Since the distance between the riveting upper die 221 and the elastic receiving part 233 is less than the distance between the punching upper die 211 and the punching lower die 212, it is possible to prevent the riveting upper die 221 from pressing down excessively.

[0120] like Figure 1 , Figure 3 and Figure 4 As shown, the upper buckle feeding device 40 is used to transport the upper buckle workpiece to the upper buckle feeding mechanism 231 when it is in the receiving position, and the lower buckle feeding device 50 is used to transport the lower buckle to the lower buckle feeding mechanism 232 when it is in the receiving position. When the upper buckle feeding mechanism 231 moves to the feeding position, it pushes the upper buckle onto the elastic receiving member 233. When the upper buckle feeding mechanism 231 moves to the receiving position, this position can receive the upper buckle fed by the upper buckle feeding device 40. When the lower buckle feeding mechanism 232 moves to the feeding position, it pushes the lower buckle onto the riveting lower die 222 when it is in the picking position. When the lower buckle feeding mechanism 232 moves to the receiving position, this position can receive the lower buckle fed by the lower buckle feeding device 50. In this embodiment, both the upper buckle feeding device 40 and the lower buckle feeding device 50 are vibrating feeding trays.

[0121] Figure 8 This is a three-dimensional structural diagram of the upper feeding mechanism in Embodiment 1 of the present invention.

[0122] like Figure 8 As shown, the upper buckle feeding mechanism 231 is used to convey the upper buckle to the elastic receiving member 233. It includes an upper buckle feeding plate 2311 with an upper feeding groove, an upper buckle push rod 2312 disposed in the upper feeding groove, and an upper buckle feeding seat 2313 connected to the upper buckle push rod 2312. The upper buckle feeding plate 2311 is fixed on the frame 10, and the elastic receiving member 233 is disposed at the end of the feeding groove and located on the lateral side of the upper buckle feeding plate 2311. The upper buckle push rod 2312 is movably disposed above the upper buckle feeding plate 2311, and the upper buckle feeding seat 2313 is movably mounted on the frame 10 by two sliding rods. One end of the upper buckle push rod 2312 is fixed to the upper buckle feeding seat 2313.

[0123] In this embodiment, the other components in the upper feeding mechanism 231, except for the upper feeding plate 2311, move between the receiving position and the feeding position.

[0124] Figure 9 This is a three-dimensional structural diagram of the feeding mechanism in Embodiment 1 of the present invention.

[0125] like Figure 9 As shown, the buckle feeding mechanism 232 is used to transport the buckled workpiece to the riveting lower die 222 when it is in the material picking position. The buckle feeding mechanism 232 includes a buckle feeding plate 2321, a buckle clamping rod 2322, a buckle clamping assembly 2323, a clamping drive 2324, and a buckle feeding seat 2325. The buckle feeding plate 2321 is fixed on the frame 10, and the buckle clamping rod 2322 is movably arranged above the buckle feeding plate 2321. The buckle clamping assembly 2323 is arranged on the buckle clamping rod 2322 and is used to grab or release the buckled workpiece fed into the buckle clamping assembly 2323. The clamping drive 2324 is connected to the buckle clamping assembly 2323 and is used to drive the buckle clamping assembly 2323 to open or close to release or grab the workpiece. The lower clamping feed seat 2325 is movably mounted on the frame 10 via two sliding rods, and one end of the lower clamping clamping rod 2322 is fixed to the lower clamping feed seat 2325. In this embodiment, the structure of the lower clamping clamping rod 2322 and the lower clamping clamping assembly 2323 is consistent with the structure of the "clamping rod and clamping assembly" disclosed in CN2021231556796 utility model patent, so it will not be described in detail here. In addition, the clamping drive component 2324 is a cylinder.

[0126] In this embodiment, the other components in the lower feeding mechanism 232, except for the lower feeding plate 2321, move between the receiving position and the feeding position.

[0127] Figure 10 This is a three-dimensional structural diagram of the upper mold driving mechanism in Embodiment 1 of the present invention.

[0128] like Figure 10 As shown, the upper die drive mechanism 241 includes an upper drive shaft 2411 and two sets of conversion linkages 2412. The input end of one set of conversion linkages 2412 is connected to the upper drive shaft 2411, and the output end is connected to the punching upper die 211 and the riveting upper die 221. The input end of the other set of conversion linkages 2412 is connected to the upper drive shaft 2411, and the output end is connected to the upper feeding mechanism 231.

[0129] Understandably, the power output from the upper drive shaft 2411 is transmitted to the punching upper die 211 and the riveting upper die 221 through a set of conversion linkages 2412, and simultaneously transmitted to the upper feeding mechanism 231 through another set of conversion linkages 2412. This enables the punching upper die 211 to move between the punching position and the clearance position, the riveting upper die 221 to move between the material taking position and the riveting position, and the upper feeding mechanism 231 to move between the material receiving position and the material feeding position.

[0130] like Figure 10 As shown, the switching linkage 2412 includes an input linkage 2412a and an output linkage 2412b. One end of the input linkage 2412a is hinged to one end of the output linkage 2412b, the other end of the input linkage 2412a constitutes the input end of the switching linkage 2412, and the other end of the output linkage 2412b constitutes the output end of the switching linkage 2412.

[0131] In this embodiment, the upper drive shaft 2411 is rotatably supported on the frame 10, and the output end of one set of conversion linkages 2412 is connected to the translation seat 31. Specifically, one end of the output link 2412b in this set of conversion linkages 2412 is hinged to the translation seat 31. The output end of the other set of conversion linkages 2412 is connected to the upper feed seat 2313 in the upper feed mechanism 231. Specifically, one end of the output link 2412b in this set of conversion linkages 2412 is hinged to the upper feed seat 2313.

[0132] Figure 11 This is a three-dimensional structural diagram of the lower mold driving mechanism in one direction in Embodiment 1 of the present invention; Figure 12 This is a three-dimensional structural diagram of the lower mold drive mechanism after the frame is removed in Embodiment 1 of the present invention.

[0133] like Figure 11 and Figure 12As shown, the lower die drive mechanism 242 includes a lower drive shaft 2421, a transition shaft 2422, a transition link 2423, two sets of conversion link parts 2412, a lifting drive assembly 2424, and a delay drive assembly 2425. The input end of the transition link part 2423 is connected to the lower drive shaft 2421, and the output end is connected to the transition shaft 2422, for power engagement between the lower drive shaft 2421 and the transition shaft 2422. The input end of one set of conversion link parts 2412 is connected to the lower drive shaft 2421, and the output end is connected to the riveting lower die 222. The input end of the other set of conversion link parts 2412 is connected to the transition shaft 2422, and the output end is connected to the lower clamping feeding mechanism 232. The lifting drive assembly 2424 is used to drive the riveting lower die 222 to move between the material picking position and the riveting position. The output end of the conversion linkage 2412 is connected to the riveting lower die 222 through the lifting drive assembly 2424. The delay drive assembly 2425 is used to drive the punching lower die 212 to move between the punching position and the clearance position. Its input end is connected to the adapter shaft 2422, and its output end is connected to the punching lower die 212.

[0134] Understandably, the power output from the lower drive shaft 2421 is transmitted to the adapter shaft 2422 via the adapter link 2423, and simultaneously to the lifting drive assembly 2424 via one set of conversion links 2412, and then to the riveting lower die 222. At the same time, the power obtained by the adapter shaft 2422 is transmitted to the lower feeding mechanism 232 via another set of conversion links 2412, and simultaneously to the punching lower die 212 via the delay drive assembly 2425. Thus, the punching lower die 212 can be driven to move between the punching position and the clearance position, the riveting lower die 222 can move between the material picking position and the riveting position, and the lower feeding mechanism 232 can move between the receiving position and the loading position.

[0135] Figure 13 This is a three-dimensional structural diagram of the lower mold driving mechanism in another direction in Embodiment 1 of the present invention.

[0136] like Figure 13 As shown, the transition link 2423 includes a first driven link 2423a, a second driven link 2423b, and a connecting link 2423c. One end of the first driven link 2423a is fixedly connected to the lower drive shaft 2421, and this end constitutes the input end of the transition link 2423. One end of the second driven link 2423b is fixedly connected to the transition shaft 2422, and this end constitutes the output end of the transition link 2423. One end of the connecting link 2423c is hinged to the other end of the first driven link 2423a, and the other end is hinged to the other end of the second driven link 2423b.

[0137] Understandably, when the lower drive shaft 2421 rotates, it can drive the first driven link 2423a to rotate synchronously. When the first driven link 2423a rotates, it drives the second driven link 2423b to rotate through the connecting link 2423c, thereby driving the adapter shaft 2422 to rotate, thus realizing the engagement of power between the lower drive shaft 2421 and the adapter shaft 2422.

[0138] Figure 14 This is a three-dimensional structural diagram of the lifting drive component in Embodiment 1 of the present invention.

[0139] like Figure 12 and Figure 14 As shown, the lifting drive assembly 2424 includes a lifting member 2424a, a moving member 2424b, a lifting member 2424c, and a first elastic reset member 2424d. The lifting member 2424a is rotatable between a first position and a second position. In the first position, the riveting lower die 222 is in the riveting position; in the second position, the riveting lower die 222 is in the material-taking position. The moving member 2424b indirectly or directly abuts against and drives the lower end of the lifting member 2424a. The output end of the switching linkage 2412 is hinged to the moving member 2424b to drive the moving member 2424b to move in a first direction or the opposite direction. The lifting member 2424c indirectly or directly abuts against the upper end of the lifting member 2424a, and the riveting lower die 222 is fixed to the upper end of the lifting member 2424c. The first elastic reset member 2424d is used to give the lifting member 2424c a downward tendency.

[0140] Understandably, the power output from the lower drive shaft 2421 is transmitted to the moving member 2424b through the conversion linkage 2412 to drive the moving member 2424b to move in the first direction or the opposite direction. When the moving member 2424b moves in the first direction, it drives and cooperates with the lifting member 2424a to rotate to the first position. When the lifting member 2424a rotates, it pushes the lifting member 2424c upward and drives the riveting lower die 222 to move to the riveting position. When the moving member 2424b moves in the opposite direction of the first direction, the lifting member 2424c moves downward under its own weight and the reset force of the first elastic reset member 2424d and drives the riveting lower die 222 to move to the material picking position, while pushing the lifting member 2424a to rotate to the second position.

[0141] In this embodiment, the lower drive shaft 2421 and the adapter shaft 2422 are rotatably supported on the frame 10, and the output end of one set of conversion linkages 2412 is connected to the lower feed seat 2325 in the lower feed mechanism 232. Specifically, one end of the output link 2412b in this set of conversion linkages 2412 is hinged to the lower feed seat 2325. One end of the output link 2412b in another set of conversion linkages 2412 is hinged to the moving member 2424b.

[0142] Figure 15 This is a three-dimensional structural diagram of the lifting component in Embodiment 1 of the present invention.

[0143] like Figure 14 and Figure 15 As shown, the lower end of the lifting member 2424a has a lifting drive portion 10a, and the moving member 2424b has a rolling portion 10b that abuts against the lifting drive portion 10a. The lifting drive portion 10a includes a first drive portion 11a, a second drive portion 12a, and a third drive portion 13a. In the first position, the first drive portion 11a abuts against the rolling portion 10b, and the first drive portion 11a is in a horizontal state. The second drive portion 12a is inclined upward relative to the first drive portion 11a. The third drive portion 13a is inclined downward relative to the second drive portion 12a. In the second position, the third drive portion 13a abuts against the rolling portion 10b, and the third drive portion 13a is in a horizontal state. The second drive portion 12a is located between the first drive portion 11a and the third drive portion 13a.

[0144] Understandably, when the moving part 2424b moves along the first direction, the rolling part 10b moves from the position of the third driving part 13a to the position of the first driving part 11a. When the rolling part 10b passes the second driving part 12a, it engages with the driving part, thereby driving the lifting part 2424a to rotate to the first position. When the moving part 2424b moves in the opposite direction of the first direction, the rolling part 10b moves from the position of the first driving part 11a to the position of the third driving part 13a, so that the lifting part 2424a can rotate to the second position. In addition, through the abutting engagement of the first driving part 11a, the third driving part 13a and the rolling part 10b, the riveting lower die 222 can be stably maintained in the riveting position or the material taking position, respectively.

[0145] When the moving part 2424b moves along the first direction, the lifting part 2424a remains stationary while the rolling part 10b engages with the third driving part 13a before reaching the second driving part 12a. The lifting part 2424a only starts to rotate after the rolling part 10b reaches the second driving part 12a. This allows the riveting lower die 222 to move towards the riveting position after the lower feeding mechanism 232 has retracted a certain distance, thus avoiding a collision between the two.

[0146] like Figure 14 As shown, the lifting member 2424a includes two lifting rods symmetrically arranged on the outer side of the lifting member 2424c. One end of the lifting rod is hinged to the frame 10, and the other end abuts against the rolling part 10b.

[0147] like Figure 11 and Figure 12 As shown, the movable component 2424b is slidably mounted on the frame 10, and the lifting component 2424c is slidably mounted on the frame 10, with the lower end of the lifting component 2424c abutting against the upper surface of the movable component 2424b. A horizontally extending crossbar 12 passes through the lifting component 2424c, and both ends of the crossbar 12 abut against the upper ends of two lifting rods via rolling elements. The frame 10 has a lifting groove 13 through which the crossbar 12 slides, extending vertically. The first elastic reset component 2424d includes two tension springs corresponding to the two lifting components 2424a. These tension springs extend vertically, with their upper ends engaging with the corresponding ends of the crossbar 12 and their lower ends engaging with the frame 10. In this embodiment, the rolling elements can be rollers or rolling bearings.

[0148] like Figure 14 As shown, the rolling part 10b includes two rolling elements, which are rotatably disposed on opposite sides of the moving part 2424b. The lower ends of both lifting rods have lifting drive parts 10a, and the two rolling elements respectively abut against the lifting drive parts 10a at the lower ends of the two lifting rods. In this embodiment, the rolling elements can be rollers or rolling bearings.

[0149] Figure 16 This is a three-dimensional structural schematic diagram of the delay driving component in Embodiment 1 of the present invention; Figure 17 This is a partial three-dimensional structural schematic diagram of the delay driving component in Embodiment 1 of the present invention.

[0150] like Figure 16 and Figure 17As shown, the delay drive assembly 2425 includes a delay link 2425a, a transmission link 2425b, a transmission shaft 2425c, a reset link 2425d, a second elastic reset member 2425e, and a drive link 2425f. One end of the delay link 2425a is fixedly connected to the adapter shaft 2422, and the other end has a delay stroke groove 20a. One end of the transmission link 2425b has a mating rod 20b, which extends movably into the delay stroke groove 20a. One end of the reset link 2425d is fixedly connected to the transmission shaft 2425c, and the other end is hinged to the other end of the transmission link 2425b. The second elastic reset member 2425e is used to drive the reset link 2425d to rotate back to its original position. One end of the drive link 2425f is fixedly connected to the transmission shaft 2425c, and the other end has a drive groove 10f. The punching die 212 has a drive rod 2121 that extends into the drive groove 10f.

[0151] Understandably, when the adapter shaft 2422 rotates in the second direction, it can drive the delay link 2425a to rotate synchronously. After the delay link 2425a rotates a certain angle, the mating rod 20b can abut against a side wall in the extension direction of the delay stroke groove 20a. After the two abut against each other, as the delay link 2425a continues to rotate, it can drive the transmission link 2425b to move synchronously. When the transmission link 2425b moves, it drives the drive link 2425f to rotate synchronously through the transmission shaft 2425c, driving... When the connecting rod 2425f rotates, it can drive the punching die 212 to move towards the punching position through the cooperation of the drive groove 10f and the drive rod 2121; when the adapter shaft 2422 rotates in the opposite direction of the second direction, it can drive the delay connecting rod 2425a to rotate synchronously. When the delay connecting rod 2425a rotates, it no longer applies a thrust to the transmission connecting rod 2425b. At the same time, the reset connecting rod 2425d rotates back to its original position under the action of the second elastic reset member 2425e, thereby driving the punching die 212 to move towards the clearance position.

[0152] When the adapter shaft 2422 rotates in the second direction, the punching die 212 remains stationary until the mating rod 20b abuts against a side wall in the extension direction of the delay stroke groove 20a. The punching die 212 only begins to move after the mating rod 20b abuts against the side wall of the delay stroke groove 20a. This allows the punching die 212 to move towards the punching position after the riveting die 222 has moved a certain distance downward, thus avoiding a collision between the two.

[0153] like Figure 16 As shown, the transmission shaft 2425c is rotatably supported on the frame 10. The second elastic reset member 2425e is a tension spring. One end of the tension spring is engaged with the near end of the reset link 2425d that is connected to the transmission link 2425b, and the other end is engaged with the frame 10.

[0154] In this embodiment, both the delay stroke groove 20a and the drive groove 10f are waist-shaped grooves, and the delay stroke groove 20a is arc-shaped.

[0155] like Figure 10 and Figure 12 As shown, the power mechanism 243 includes a first power unit 2431 and a second power unit 2432. The first power unit 2431 is used to drive the upper drive shaft 2411 to rotate. The second power unit 2432 is used to drive the lower drive shaft 2421 to rotate. The structures of the first power unit 2431 and the second power unit 2432 are the same, and the first power unit 2431 will be specifically described here. The first power unit 2431 includes a power connecting rod 2431a and a power source 2431b. One end of the power connecting rod 2431a is fixed to the upper drive shaft 2411, and the other end is movably connected to the output end of the power source 2431b. The power source 2431b is fixedly mounted on the frame 10. In this embodiment, the power source 2431b is a cylinder. It can be understood that when the power source 2431b is working, it drives the power connecting rod 2431a to swing back and forth, thereby driving the upper drive shaft 2411 to rotate back and forth.

[0156] In other alternative embodiments, the first power unit 2431 and the second power unit 2432 can both be motors, and the upper drive shaft 2411 and the lower drive shaft 2421 are respectively connected to the motor shaft.

[0157] <Example 2>

[0158] Figure 18 This is a front view structural diagram of the power mechanism in Embodiment 2 of the present invention.

[0159] The difference between this embodiment and Embodiment 1 is that: Figure 18 As shown, the power mechanism 243 of this embodiment includes a power unit 2433 and a power engagement unit 2434. The power unit 2433 is used to drive the lower drive shaft 2421 to rotate. The power engagement unit 2434 is used to power engage the upper drive shaft 2411 and the lower drive shaft 2421.

[0160] In this embodiment, the structure of the power unit 2433 is consistent with that of the second power unit 2432. The lower end of the upper drive shaft 2411 and the upper end of the lower drive shaft 2421 are connected by a power coupling 2434. Understandably, when the power unit 2433 is working, it drives the lower drive shaft 2421 to rotate, thereby causing the upper drive shaft 2411 and the lower drive shaft 2421 to rotate synchronously.

[0161] The role and effect of the embodiments

[0162] According to the punching and riveting switching device and riveting machine involved in this embodiment, the riveting machine includes a frame, a punching and riveting switching device, a punching drive device, an upper buckle feeding device, and a lower buckle feeding device. The riveting machine also includes a punching section, a riveting section, and a feeding section. The punching section has an upper punching die and a lower punching die, the riveting section has an upper riveting die and a lower riveting die, and the feeding section has an upper buckle feeding mechanism and a lower buckle feeding mechanism. The punching and riveting switching device includes a linkage drive section, which has an upper die drive mechanism, a lower die drive mechanism, and a power mechanism. When the upper die drive mechanism is working, it can simultaneously drive the punching and riveting machine. The upper die for punching, the upper die for riveting, and the upper feeding mechanism for buckling perform corresponding actions. When the lower die drive mechanism is working, it can simultaneously drive the lower die for punching, the lower die for riveting, and the lower feeding mechanism for buckling to perform corresponding actions. Since both the upper and lower die drive mechanisms drive multiple parts to perform corresponding actions simultaneously, when the power output fails, the corresponding multiple parts will not be able to move, which can effectively prevent collisions between the parts and reduce the failure rate. Moreover, only a single power source is needed to drive each part to perform corresponding actions simultaneously, so that each action can be performed at the same time, thereby improving work efficiency.

[0163] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A punching and riveting switching device, disposed within a riveting machine, for driving the riveting machine to switch between a punching process and a riveting process, the riveting machine comprising: The punching part (21) has an upper punching die (211) and a lower punching die (212); The riveting part (22) has an upper riveting mold (221) and a lower riveting mold (222); The feeding section (23) has an upper feeding mechanism (231) and a lower feeding mechanism (232); The punching and riveting switching device is characterized in that it includes: The linkage drive section (24) includes an upper die drive mechanism (241), a lower die drive mechanism (242), and a power mechanism (243), wherein the power mechanism (243) provides power to the upper die drive mechanism (241) and the lower die drive mechanism (242). The upper die driving mechanism (241) is connected to the punching upper die (211), the riveting upper die (221) and the upper buckle feeding mechanism (231) to drive the punching upper die (211), the riveting upper die (221) and the upper buckle feeding mechanism (231) to perform corresponding actions simultaneously. The lower die driving mechanism (242) is driven to connect with the punching lower die (212), the riveting lower die (222) and the lower buckle feeding mechanism (232) to simultaneously drive the punching lower die (212), the riveting lower die (222) and the lower buckle feeding mechanism (232) to perform corresponding actions. When the punching upper die (211) and the punching lower die (212) are activated, they move between their respective punching positions and clearance positions. When the riveting upper die (221) and the riveting lower die (222) are activated, they move between their respective material taking positions and riveting positions. When the upper buckle feeding mechanism (231) and the lower buckle feeding mechanism (232) are activated, they move between their respective material receiving positions and material feeding positions. The upper mold driving mechanism (241) includes: Upper drive shaft (2411); and Two sets of conversion linkages (2412), one of which has its input end connected to the upper drive shaft (2411) and its output end connected to the punching upper die (211) and the riveting upper die (221); The input end of another set of the conversion linkage (2412) is connected to the upper drive shaft (2411), and the output end is connected to the upper feeding mechanism (231); The lower die drive mechanism (242) includes: Lower drive shaft (2421); Adapter shaft (2422); The adapter link (2423) has an input end connected to the lower drive shaft (2421) and an output end connected to the adapter shaft (2422), which is used to power engage the lower drive shaft (2421) and the adapter shaft (2422). Two sets of conversion linkages (2412), one set of which has its input end connected to the lower drive shaft (2421) and its output end connected to the riveting lower die (222), and the other set of which has its input end connected to the adapter shaft (2422) and its output end connected to the lower buckle feeding mechanism (232); A lifting drive assembly (2424) is used to drive the riveting lower die (222) to move between the material picking position and the riveting position; the output end of the conversion linkage (2412) is connected to the riveting lower die (222) through the lifting drive assembly (2424); and A delay drive assembly (2425) is used to drive the punching die (212) to move between the punching position and the clearance position. Its input end is connected to the adapter shaft (2422), and its output end is connected to the punching die (212).

2. The punching and riveting switching device according to claim 1, characterized in that: in, The conversion linkage (2412) includes: Input link (2412a); and Output linkage (2412b), One end of the input link (2412a) is hinged to one end of the output link (2412b). The other end of the input link (2412a) constitutes the input end of the conversion link (2412), and the other end of the output link (2412b) constitutes the output end of the conversion link (2412).

3. The punching and riveting switching device according to claim 1, Its features are: in, The lifting drive assembly (2424) includes: The lifting component (2424a) can rotate between a first position and a second position. When it is in the first position, the riveting lower die (222) is in the riveting position, and when it is in the second position, the riveting lower die (222) is in the material taking position. The movable member (2424b) indirectly or directly abuts against and drives the lower end of the lifting member (2424a), and the output end of the conversion linkage (2412) is hinged to the movable member (2424b) to drive the movable member (2424b) to move in a first direction or the opposite direction of the first direction; The lifting component (2424c) abuts directly or indirectly against the upper end of the lifting component (2424a), and the riveting lower mold (222) is fixed to the upper end of the lifting component (2424c); and The first elastic reset element (2424d) is used to give the lifting element (2424c) a downward tendency. When the moving member (2424b) moves along the first direction, it drives and cooperates with the lifting member (2424a) to drive the lifting member (2424a) to rotate toward the first position; When the moving member (2424b) moves in the opposite direction to the first direction, the lifting member (2424a) rotates to the second position under the action of the gravity of the lifting member (2424c) and / or the reset force of the first elastic reset member (2424d).

4. The punching and riveting switching device according to claim 3, characterized in that: in, The lower end of the lifting member (2424a) has a lifting drive part (10a), and the moving member (2424b) has a rolling part (10b) that abuts against the lifting drive part (10a). The lifting drive unit (10a) includes: When the first driving part (11a) is in the first position, it abuts against the rolling part (10b), and at this time the first driving part (11a) is in a horizontal state; The second drive unit (12a) is inclined upward relative to the first drive unit (11a); and The third drive unit (13a) is inclined downward relative to the second drive unit (12a). When it is in the second position, it abuts against the rolling part (10b). At this time, the third drive unit (13a) is in a horizontal state. The second drive unit (12a) is located between the first drive unit (11a) and the third drive unit (13a).

5. The punching and riveting switching device according to claim 1, Its features are: in, The delay drive component (2425) includes: The delay link (2425a) is fixedly connected at one end to the adapter shaft (2422) and has a delay stroke groove (20a) at the other end; The transmission link (2425b) has a mating rod (20b) at one end, which extends movably into the delay stroke groove (20a); Transmission shaft (2425c); The reset link (2425d) is fixedly connected at one end to the transmission shaft (2425c) and hinged at the other end to the other end of the transmission link (2425b); The second elastic reset element (2425e) is used to drive the reset link (2425d) to rotate back to its original position; as well as The drive linkage (2425f) is fixedly connected at one end to the transmission shaft (2425c) and has a drive groove (10f) at the other end. The punching die (212) has a drive rod (2121) that extends movably into the drive groove (10f). When the adapter shaft (2422) rotates in the second direction, after the delay connecting rod (2425a) rotates by a certain angle, the mating rod (20b) abuts against a side wall in the extension direction of the delay stroke groove (20a), thereby driving the punching die (212) to move toward the punching position; When the adapter shaft (2422) rotates in the opposite direction of the second direction, the reset link (2425d) rotates back to its original position under the action of the second elastic reset member (2425e), thereby driving the punching die (212) to move toward the clearance position.

6. The punching and riveting switching device according to claim 1, Its features are: in, The power mechanism (243) includes: A first power unit (2431) is used to drive the upper drive shaft (2411) to rotate; and The second power unit (2432) is used to drive the lower drive shaft (2421) to rotate; or, The power mechanism (243) includes: A power unit (2433) is used to drive the upper drive shaft (2411) or the lower drive shaft (2421) to rotate; and A power engagement portion (2434) is used to power engage the upper drive shaft (2411) and the lower drive shaft (2421).

7. A riveting machine, characterized in that, Includes the punching and riveting switching device as described in any one of claims 1-6.

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