Rivet feeding mechanism and caster wheel assembling machine

Abstract

The application discloses a rivet feeding mechanism, which comprises a rack, a storage device and a clamping assembly. The rack is provided with a rivet feeding position, and the rivet feeding position is provided with a jig. The jig is provided with at least two feeding grooves. The storage device comprises a storage disc arranged on the rack, and the storage disc is provided with storage grooves corresponding to all the feeding grooves. The clamping assembly comprises a moving seat and clamping portions corresponding to all the feeding grooves. When the moving seat moves close to the storage disc, all the clamping portions are aligned with all the storage grooves. When the moving seat moves close to the rivet feeding position, all the clamping portions are aligned with all the feeding grooves. Thus, the clamping assembly can clamp multiple rivets from the storage grooves of the storage disc into the feeding grooves of the jig through the clamping portions at one time, and the feeding process is convenient and fast, and the feeding efficiency is high. In addition, the application also discloses a caster assembling machine provided with the rivet feeding mechanism.

Description

Technical Field

[0001] This invention relates to the field of caster technology, and in particular to a rivet feeding mechanism and a caster assembly machine. Background Technology

[0002] Casters typically consist of two hubs and a roller mounted between them, with the two hubs connected by multiple rivets. During the assembly of the two hubs and the roller, the rivets need to be fed. Existing caster assembly machines typically employ a rivet feeding mechanism that includes a clamp and a fixture. The fixture has multiple slots for placing rivets, and the clamp sequentially picks up the rivets from the feeding device and places them into the respective slots.

[0003] During the feeding process, the clamp can only pick up the rivets sequentially into the various feeding slots of the fixture, resulting in low feeding efficiency. Furthermore, since the positions of the feeding slots are not the same, the clamp needs to be moved to different positions when feeding into different slots, making the feeding process complex and cumbersome. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a rivet feeding mechanism that can clamp multiple rivets to the rivet release position at one time, and has high feeding efficiency.

[0005] The present invention also proposes a caster assembly machine having the above-mentioned rivet feeding mechanism.

[0006] A rivet feeding mechanism according to an embodiment of the present invention includes: a frame with a rivet feeding position, the rivet feeding position being provided with a fixture, the fixture having at least two feeding slots; a storage device including a storage tray disposed on the frame, the storage tray having storage slots corresponding one-to-one with all the feeding slots; and a clamping assembly including a movable base and clamping parts corresponding one-to-one with all the feeding slots, the movable base being movably mounted on the frame and capable of reciprocating between the rivet feeding position and the storage device, and all the clamping parts being mounted on the movable base; when the movable base moves closer to the storage tray, all the clamping parts align with all the feeding slots, and each clamping part can acquire a rivet in the corresponding feeding slot; when the movable base moves closer to the rivet feeding position, all the clamping parts align with all the feeding slots, and each clamping part can place a rivet in the corresponding feeding slot.

[0007] The rivet feeding mechanism according to embodiments of the present invention has at least the following beneficial effects:

[0008] By setting up a material storage device, the storage tray of the device has storage slots that correspond one-to-one with the various feeding slots on the fixture. A clamping assembly is also included, whose movable seat can reciprocate between the rivet feeding position and the storage device. The movable seat is equipped with clamping parts that correspond one-to-one with each feeding slot. During loading, rivets are first stored in their respective storage slots. Each clamping part moves closer to the storage tray and aligns with all the storage slots, thus acquiring the rivet from its corresponding slot. Then, each clamping part moves again closer to the rivet feeding position and aligns with all the feeding slots, placing the rivet into its corresponding feeding slot. Throughout the rivet loading process, there is no need to load rivets one by one; the clamping assembly can pick up multiple rivets from the storage tray and place them into the feeding slots of the fixture at once, saving loading time and improving loading efficiency.

[0009] According to some embodiments of the present invention, the storage tray is movably mounted on the frame, and the storage device further includes a first driving device mounted on the frame. The first driving device is capable of driving the storage tray to rotate relative to the frame. When the storage tray rotates to a preset angle, the movable seat is capable of moving closer to the storage tray and aligning all the clamping parts with all the storage slots one by one.

[0010] According to some embodiments of the present invention, the storage device further includes a support base disposed on the frame, the support base having an installation groove, the storage tray being rotatably mounted in the installation groove, the side wall of the installation groove having an inlet, and the first driving device being mounted on the support base; each of the storage troughs has an opening on its side wall that can communicate with the inlet, and the first driving device can drive the storage tray to rotate relative to the support base so that one of the openings communicates with the inlet.

[0011] According to some embodiments of the present invention, each of the feeding troughs is provided with a magnetic suction component on its bottom wall, the magnetic suction component being capable of attracting rivets.

[0012] According to some embodiments of the present invention, the magnetic suction assembly includes a magnet disposed on the bottom wall of the feeding trough and a shielding member covering the upper surface of the magnet.

[0013] According to some embodiments of the present invention, at least one set of snap-fit ​​components is provided between the fixture and the frame. The snap-fit ​​components include a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part has a slot that can snap-fit ​​with the second snap-fit ​​part. One of the first snap-fit ​​part and the second snap-fit ​​part is provided in the fixture, and the other is provided in the frame.

[0014] According to some embodiments of the present invention, the clamping assembly further includes a mounting frame disposed on the frame, the movable seat is movably mounted on the mounting frame, the mounting frame is equipped with a second driving device that is throttle-connected to the movable seat, the second driving device being capable of driving the movable seat to reciprocate between the rivet feeding position and the storage device, the movable seat being equipped with a third driving device; all the clamping parts are throttle-connected to the third driving device, the third driving device being capable of driving all the clamping parts to reciprocate in the up-down direction.

[0015] According to some embodiments of the present invention, the clamping part is provided with a receiving cavity, a hollow push rod is movably inserted in the receiving cavity, a negative pressure channel communicating with the receiving cavity is formed inside the hollow push rod, a guide part is provided at the lower edge of the receiving cavity, and a fourth driving device is installed on the movable seat and is pulsatorically connected to the hollow push rod, the fourth driving device being able to drive the hollow push rod to move along the axial direction of the receiving cavity.

[0016] The rivet assembly machine according to an embodiment of the present invention is provided with a rivet feeding mechanism according to any of the above embodiments.

[0017] The rivet assembly machine according to embodiments of the present invention has at least the following beneficial effects:

[0018] By setting the rivet feeding mechanism in any of the above embodiments, each clamping part of the clamping assembly can sequentially clamp multiple rivets from each storage slot of the storage tray to each discharge slot of the fixture. The feeding process is convenient and fast, with high feeding efficiency, thereby improving the caster assembly efficiency of the caster assembly machine.

[0019] According to some embodiments of the present invention, a rotating seat is rotatably mounted on the frame, and there are multiple fixtures. All the fixtures are mounted on the rotating seat and arranged at intervals along the circumference of the rotating seat. The frame is also equipped with a fifth driving device that is pulsatorically connected to the rotating seat. The fifth driving device can drive the rotating seat to rotate and cause each fixture to rotate sequentially to the rivet feeding position.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the rivet feeding mechanism according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial schematic diagram of the rivet feeding mechanism is shown;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a schematic diagram of a material storage device according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Another schematic diagram of the storage device is shown;

[0027] Figure 6 This is a schematic diagram of the fixture according to an embodiment of the present invention;

[0028] Figure 7 for Figure 6 A schematic cross-sectional view of the fixture is shown;

[0029] Figure 8 This is a schematic diagram of the clamping assembly according to an embodiment of the present invention;

[0030] Figure 9 for Figure 8 A partial cross-sectional schematic diagram of the clamping assembly is shown;

[0031] Figure 10 This is a schematic diagram of a caster assembly machine according to an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the casters according to an embodiment of the present invention;

[0033] Figure 12 for Figure 11 A schematic diagram of the cross-section of the caster is shown.

[0034] Figure label:

[0035] Frame 100, rivet feeding position 110, rotating seat 120;

[0036] Fixture 200, feeding trough 210, magnet 220, shielding part 230, first snap-fit ​​part 240, snap-fit ​​slot 241, second snap-fit ​​part 250;

[0037] Storage device 300, storage tray 310, storage trough 311, first drive device 320, support base 330, and inlet 340;

[0038] Clamping assembly 400, movable seat 410, clamping part 420, accommodating cavity 421, hollow push rod 430, negative pressure channel 431, guide part 440, mounting bracket 450, third drive device 460, first connecting block 461, fourth drive device 470, second connecting block 471;

[0039] Caster 500, first hub 510, first mounting hole 511, second hub 520, second mounting hole 521, roller 530. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0042] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0043] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0044] Reference Figures 1 to 9An embodiment of the present invention provides a rivet feeding mechanism, which includes a frame 100, a storage device 300, and a clamping assembly 400. The frame 100 has a rivet placement position 110, and a fixture 200 is provided in the rivet placement position 110. The fixture 200 has three placement slots 210. The storage device 300 includes a storage tray 310 disposed on the frame 100, and the storage tray 310 has storage slots 311 corresponding to all the placement slots 210. The clamping assembly 400 includes a movable base 410 and clamping parts 420 corresponding to all the placement slots 210. The movable base 410 is movably mounted on the frame 100 and can reciprocate between the rivet placement position 110 and the storage device 300. All clamping parts 420 are mounted on the movable base 410. When the movable seat 410 moves closer to the storage tray 310, all the clamping parts 420 align with all the storage slots 311, and each clamping part 420 can pick up the rivets in the corresponding storage slot 311. When the movable seat 410 moves closer to the rivet release position 110, all the clamping parts 420 align with all the release slots 210, and each clamping part 420 can place the rivets in the corresponding release slot 210.

[0045] In the above structure, during feeding, the rivets from the feeding device can first be stored in the respective storage slots 311, and then the clamping assembly 400 transports the rivets from the storage slots 311 of the storage device 300 to the discharge slots 210 of the fixture 200. Specifically, the moving base 410 first moves each clamping part 420 closer to the storage tray 310, at which point all clamping parts 420 are aligned with all storage slots 311, so that each clamping part 420 can pick up the rivets in the corresponding storage slot 311. After picking up the rivets, the moving base 410 moves each clamping part 420 closer to the rivet discharge position 110, at which point all clamping parts 420 are aligned with all discharge slots 210, so that each clamping part 420 can place the rivets in the corresponding discharge slot 210. Throughout the rivet feeding process, there is no need to repeatedly feed the rivets one by one to the various discharge slots 210 of the fixture 200. The clamping assembly 400 can use the clamping parts 420 to clamp multiple rivets from the various storage slots 311 of the storage tray 310 to the various discharge slots 210 of the fixture 200 at one time. The feeding process is convenient and fast, and the feeding time of multiple rivets is shortened. Therefore, the rivet feeding mechanism has a high rivet feeding efficiency.

[0046] It is understood that each of the clamping parts 420 can acquire the rivets in the corresponding storage tank 311. Each clamping part 420 can acquire the rivets in the corresponding storage tank 311 sequentially or simultaneously. The present invention does not specifically limit this. Similarly, each of the clamping parts 420 can place the rivet into the corresponding feed slot 210. Each clamping part 420 can place the rivet into the corresponding feed slot 210 sequentially or simultaneously. The present invention does not specifically limit this, as long as each clamping part 420 can acquire the rivet in the corresponding storage slot 311 and place the rivet into the corresponding feed slot 210. Thus, the moving seat 410 can drive all the clamping parts 420 to move relative to the frame 100, and multiple rivets can be clamped from the storage slots 311 of the storage tray 310 into the feed slots 210 of the fixture 200 at one time, shortening the feeding time of multiple rivets.

[0047] In some embodiments, when all clamping parts 420 are aligned with all storage slots 311, all clamping parts 420 can simultaneously acquire the rivets in the corresponding storage slots 311, and when all clamping parts 420 are aligned with all discharging slots 210, all clamping parts 420 can simultaneously place the rivets in the corresponding discharging slots 210. This shortens the material handling time and discharging time for multiple rivets, thereby further improving the feeding efficiency of multiple rivets.

[0048] Understandably, referring to Figures 1 to 9 The aforementioned fixture 200 is provided with three material feeding slots 210, and the storage tray 310 is provided with storage slots 311 corresponding to all the material feeding slots 210. Specifically, the three material feeding slots 210 are arranged at intervals along the circumference of the fixture 200, and the three storage slots 311 are arranged at intervals along the circumference of the storage tray 310.

[0049] Understandably, the aforementioned jig 200 is equipped with three feeding slots 210, which is only for... Figures 1 to 9 This is an exemplary illustration. The number of feeding slots 210 can be three, two, four, or more; the present invention does not specifically limit this, as long as the fixture 200 has at least two feeding slots 210. Correspondingly, the storage slots 311 on the storage tray 310 correspond one-to-one with all the feeding slots 210, and all the clamping parts 420 also correspond one-to-one with all the feeding slots 210.

[0050] It is understood that the feeding device can be a part of the rivet feeding mechanism, or it can be a structure independent of the rivet feeding mechanism. This invention does not specifically limit the feeding device in this regard.

[0051] Reference Figures 3 to 5 In some embodiments, the storage tray 310 is movably mounted on the frame 100, and the storage device 300 further includes a first drive device 320 mounted on the frame 100, which can drive the storage tray 310 to rotate relative to the frame 100. When the storage tray 310 rotates to a preset angle, the movable seat 410 can move closer to the storage tray 310 and align all the clamping parts 420 with all the storage slots 311 one by one.

[0052] In the above structure, by rotatably mounting the storage tray 310 to the frame 100, the storage tray 310 can be rotated as needed, making the feeding of rivets more flexible and convenient. When the rivets in the feeding device are conveyed to each storage trough 311, the first drive device 320 can drive the storage tray 310 to rotate relative to the frame 100, and cause each storage trough 311 to move sequentially to correspond to the discharge port of the feeding device, so that the rivets in the feeding device can enter each storage trough 311 through the discharge port. When the clamping parts 420 of the clamping assembly 400 cannot be aligned with the storage slots 311 of the storage tray 310, the first driving device 320 can drive the storage tray 310 to rotate to a preset position. At this time, the moving seat 410 can drive the clamping parts 420 to move closer to the storage tray 310, so that all the clamping parts 420 are aligned with all the storage slots 311. Thus, each clamping part 420 can pick up the rivets in the corresponding storage slot 311. In this process, by rotating the storage tray 310 onto the frame 100, the adverse phenomenon of the storage slots 311 not being aligned with the clamping parts 420 of the clamping assembly 400 due to positional deviation of the storage tray 310 can be avoided. This allows each clamping part 420 to accurately pick up the rivets in the corresponding storage slot 311, improving the rivet feeding efficiency.

[0053] It is understood that the first driving device 320 may specifically be a rotary cylinder, or a rotary hydraulic cylinder, a motor, or other rotary driving device, and the present invention does not specifically limit it in this regard.

[0054] Reference Figures 3 to 5 In some embodiments, the storage device 300 further includes a support base 330 disposed on the frame 100. The support base 330 has an installation groove, and the storage tray 310 is rotatably installed in the installation groove. The side wall of the installation groove has an inlet 340. The first drive device 320 is installed on the support base 330. Each storage trough 311 has an opening on its side wall that can communicate with the inlet 340. The first drive device 320 can drive the storage tray 310 to rotate relative to the support base 330, so that one of the openings communicates with the inlet 340.

[0055] In the above structure, by opening an inlet 340 on the side wall of the mounting groove and opening an opening on the side wall of each storage trough 311, when it is necessary to transport rivets from the feeding device to each storage trough 311, the inlet 340 on the side wall of the mounting groove can be aligned with the outlet of the feeding device. The storage tray 310 is driven to rotate relative to the mounting groove by the first driving device 320, so that the openings of each storage trough 311 are connected to the inlet 340 in sequence. Thus, the rivets in the feeding device can enter each storage trough 311 through the outlet. The operation is convenient and quick, which helps to improve the feeding efficiency of rivets. When each storage slot 311 of the storage tray 310 contains rivets, the first driving device 320 drives the storage tray 310 to rotate relative to the mounting slot to a preset angle. At this time, the moving seat 410 can drive each clamping part 420 to move closer to the storage tray 310, so that all the clamping parts 420 are aligned with all the storage slots 311 one by one, thereby each clamping part 420 can obtain the rivets in the corresponding storage slot 311.

[0056] It is understood that when conveying the rivets from the feeding device to each storage trough 311, in addition to the above-described structure, the storage tray 310 can also be directly positioned below the discharge port of the feeding device. In this case, the first driving device 320 can drive the storage tray 310 to rotate relative to the frame 100, causing each storage trough 311 to move sequentially below the discharge port. When the storage trough 311 is below the discharge port, the rivets from the feeding device can enter the storage trough 311 through the discharge port. The present invention does not specifically limit the specific feeding structure of the storage trough 311.

[0057] Reference Figure 6 and Figure 7 In some embodiments, each feed trough 210 has a magnetic suction component on its bottom wall, which can attract rivets.

[0058] In the above structure, the magnetic suction component facilitates the positioning of rivets in the feeding slot 210, allowing the rivets to be attracted to the magnetic suction component and stably placed in the feeding slot 210, thereby facilitating the subsequent assembly of the rivets with other components.

[0059] Reference Figure 6 and Figure 7 In some embodiments, the magnetic attraction component specifically includes a magnet 220 disposed on the bottom wall of the feeding trough 210 and a shielding member 230 covering the upper surface of the magnet 220.

[0060] In the above structure, the magnet 220 can magnetically attract the rivet, so that the rivet is stably placed in the feed trough 210. The shield 230 can protect the magnet 220, preventing the magnet 220 from directly contacting the rivet, thereby reducing the occurrence of defects such as the magnet 220 breaking due to pressure when the rivet is assembled with other parts.

[0061] Understandably, referring to Figure 6 and Figure 7 To make the installation of magnet 220 more stable, magnet 220 can be embedded in shield 230.

[0062] Reference Figure 6 and Figure 7 In some embodiments, two sets of snap-fit ​​components are provided between the fixture 200 and the frame 100. The snap-fit ​​components include a first snap-fit ​​part 240 and a second snap-fit ​​part 250. The first snap-fit ​​part 240 has a slot 241 that can snap-fit ​​with the second snap-fit ​​part 250. The first snap-fit ​​part 240 is located on the fixture 200, and the second snap-fit ​​part 250 is located on the frame 100.

[0063] In the above structure, by setting a snap-fit ​​component, the second snap-fit ​​part 250 snaps into the slot 241 of the first snap-fit ​​part 240, thereby enhancing the installation stability between the fixture 200 and the frame 100, limiting the fixture 200, and preventing the fixture 200 from shifting or deflecting.

[0064] It is understood that two sets of snap-fit ​​components are provided between the aforementioned fixture 200 and the frame 100. These two sets of snap-fit ​​components can be correspondingly positioned on opposite sides of the fixture 200, thereby better limiting the position of the fixture 200 and enhancing the stability of the installation between the fixture 200 and the frame 100. Of course, the two sets of snap-fit ​​components can also be positioned at any other location on the fixture 200; this invention does not specifically limit this. Furthermore, the number of snap-fit ​​components can be two, one, three, or more; this invention also does not specifically limit this, and the choice can be made according to the actual situation.

[0065] Understandably, referring to Figure 6 and Figure 7The first snap-fit ​​portion 240 is disposed on the fixture 200. Specifically, the first snap-fit ​​portion 240 and the fixture 200 can be integrated into one structure, thereby facilitating the manufacturing and processing of the fixture 200 and the first snap-fit ​​portion 240. Of course, in addition, the first snap-fit ​​portion 240 and the fixture 200 can also be separately disposed, with the first snap-fit ​​portion 240 mounted on the fixture 200; the present invention does not specifically limit this. Similarly, the second snap-fit ​​portion 250 is disposed on the frame 100. The second snap-fit ​​portion 250 and the fixture 200 can also be integrated into one structure, or the second snap-fit ​​portion 250 can be separately disposed, with the second snap-fit ​​portion 250 mounted on the frame 100; the present invention does not specifically limit this either.

[0066] It is understandable that the aforementioned first latching part 240 is located on the fixture 200, and the second latching part 250 is located on the frame 100, which is only for... Figure 6 and Figure 7 This is one example. Alternatively, the first latching portion 240 may be provided on the frame 100, and the second latching portion 250 may be provided on the fixture 200; the present invention does not specifically limit this.

[0067] Reference Figure 8 and Figure 9 In some embodiments, the clamping assembly 400 further includes a mounting bracket 450 disposed on the frame 100. A movable seat 410 is movably mounted on the mounting bracket 450. The mounting bracket 450 is equipped with a second drive device that is throttle-connected to the movable seat 410. The second drive device can drive the movable seat 410 to reciprocate between the rivet feeding position 110 and the storage device 300. A third drive device 460 is mounted on the movable seat 410. All clamping parts 420 are throttle-connected to the third drive device 460, which can drive all clamping parts 420 to reciprocate in the vertical direction.

[0068] In the above structure, the second drive device can drive the moving seat 410 and move all the clamping parts 420 back and forth between the rivet feeding position 110 and the storage device 300. The third drive device 460 can drive all the clamping parts 420 to move back and forth in the vertical direction. During feeding, the second drive device first drives all the clamping parts 420 to move relative to the frame 100 above the storage tray 310. At this time, each clamping part 420 is aligned with each storage slot 311 on the storage tray 310. Then, the third drive device 460 drives all the clamping parts 420 to move downward relative to the frame 100 and closer to the storage tray 310, so that each clamping part 420 can pick up the rivets in the corresponding storage slot 311. After acquiring the rivets, the third drive device 460 drives all the clamping parts 420 to move upward relative to the frame 100 away from the storage tray 310. Then, the second drive device drives all the clamping parts 420 to move relative to the frame 100 above the rivet loading position. At this point, each clamping part 420 aligns with each of the feeding slots 210 of the fixture 200. Finally, the third drive device 460 drives all the clamping parts 420 to move downward relative to the frame 100 towards the fixture 200, allowing all the clamping parts 420 to place the rivets into their corresponding storage slots 311. Thus, the cooperation of the second and third drive devices 460 makes the rivet loading process more convenient and efficient.

[0069] It is understood that all the clamping parts 420 mentioned above are connected to the third drive device 460 in a transmission manner. Specifically, refer to... Figure 8 and Figure 9 The output end of the third driving device 460 has a first connecting block 461, and all the clamping parts 420 are mounted on the first connecting block 461. The first connecting block 461 can be a plate-like structure, or it can be composed of two interconnected plate-like structures, or it can adopt other structures. The present invention does not specifically limit the structure.

[0070] It is understood that the second and third drive devices 460 can be cylinders, or hydraulic cylinders, electric push rods, motor-driven screw and nut structures, or other linear drive devices. This invention does not specifically limit the choice of these devices.

[0071] It is understood that the movable seat 410 is movably mounted on the mounting frame 450. Specifically, a slide rail can be provided on the mounting frame 450, and the movable seat 410 is slidably mounted on the slide rail, so that the movable seat 410 can reciprocate between the rivet feeding position 110 and the storage device 300 along the slide rail.

[0072] Reference Figure 8 and Figure 9In some embodiments, the clamping part 420 is provided with a receiving cavity 421, and a hollow push rod 430 is movably inserted in the receiving cavity 421. A negative pressure channel 431 communicating with the receiving cavity 421 is formed inside the hollow push rod 430. A guide part 440 is provided at the lower edge of the receiving cavity 421. The moving seat 410 is equipped with a fourth driving device 470 that is pulsatorically connected to the hollow push rod 430. The fourth driving device 470 can drive the hollow push rod 430 to move along the axial direction of the receiving cavity 421.

[0073] In the above structure, the negative pressure channel 431 of the hollow top rod can be connected to an external negative pressure device, such as a vacuum generator, thereby creating a negative pressure within the receiving cavity 421. This allows the rivet to be adsorbed within the receiving cavity 421, meaning the clamping part 420 acquires the rivet through negative pressure adsorption. When acquiring the rivet, the guide part 440 at the lower edge of the receiving cavity 421 guides the rivet. When releasing the rivet, the fourth driving device 470 can drive the hollow top rod 430 downward along the axial direction of the receiving cavity 421, thereby pushing the rivet out of the receiving cavity 421 and releasing it. By configuring the clamping part 420 with the above structure, the acquisition and release of the rivet become more convenient.

[0074] It is understood that the movable seat 410 is equipped with a fourth drive device 470 that is pulverizedly connected to the hollow push rod 430. Specifically, each hollow push rod 430 may be pulverizedly connected to a fourth drive device 470, or all hollow push rods 430 may be pulverizedly connected to the same fourth drive device 470. The present invention does not make any specific limitation on this.

[0075] When all the hollow push rods 430 are connected to the same fourth drive device 470, the fourth drive device 470 can simultaneously drive all the hollow push rods 430 to reciprocate along the axial direction of the receiving cavity 421, thereby enabling all the clamping parts 420 to simultaneously acquire the rivets in the corresponding storage groove 311 and simultaneously place the rivets in the corresponding discharge groove 210. This can shorten the material picking time and discharge time of multiple rivets, thereby further improving the feeding efficiency of multiple rivets.

[0076] Specifically, when all the hollow push rods 430 are connected to the same fourth drive device 470, a second connecting block 471 can be provided at the output end of the fourth drive device 470, and all the hollow push rods 430 can be connected to the second connecting block 471. The second connecting block 471 can be an integral structure or a separate structure from the output end of the fourth drive device 470, and the present invention does not specifically limit this.

[0077] It is understood that the lower edge of the aforementioned accommodating cavity 421 is provided with a guide portion 440, wherein the guide portion 440 may specifically be a tapered guide surface disposed on the lower edge of the accommodating cavity 421. In addition, the guide portion 440 may also be configured as other guide structures that can guide the rivet, and the present invention does not specifically limit this.

[0078] It is understood that the fourth drive device 470 may be a cylinder, or it may be a hydraulic cylinder, an electric push rod or other linear drive device, and the present invention does not specifically limit it.

[0079] It is understood that the clamping part 420 can adopt a negative pressure adsorption structure, a mechanical gripper or other clamping structure, and the present invention does not specifically limit it in this regard.

[0080] Reference Figure 10 An embodiment of the present invention also provides a caster assembly machine, which includes the rivet feeding mechanism of any of the above embodiments.

[0081] In the above structure, by setting the rivet feeding mechanism of any of the above embodiments, each clamping part 420 of the clamping assembly 400 can clamp multiple rivets from each storage slot 311 of the storage tray 310 to each discharge slot 210 of the fixture 200 at one time. The feeding process is convenient and fast, saving the time required for feeding multiple rivets and having high feeding efficiency, thereby improving the assembly efficiency of the caster 500 of the caster assembly machine.

[0082] Reference Figure 11 and Figure 12 The caster 500 includes a first hub 510, a second hub 520, and a roller 530 disposed between the first hub 510 and the second hub 520. The first hub 510 and the second hub 520 are assembled together by multiple rivets. Specifically, the first hub 510 has multiple first mounting holes 511 for mounting rivets, and the second hub 520 also has multiple second mounting holes 521 for mounting rivets. All the first mounting holes 511 correspond one-to-one with all the second mounting holes 521, and the rivets are installed in the corresponding first mounting holes 511 and second mounting holes 521. The first mounting holes 511 can be arranged at intervals along the circumference of the first hub 510, and the second mounting holes 521 can also be arranged at intervals along the circumference of the second hub 520.

[0083] When the caster assembly machine is working, rivets can be fed first through the rivet feeding mechanism, and then the first hub 510, roller 530, and second hub 520 can be assembled in sequence, so that the rivets are installed in the corresponding first mounting holes 511 and second mounting holes 521. Alternatively, the first hub 510, roller 530, and second hub 520 can be fed first, and then the rivets can be fed through the rivet feeding mechanism and installed in the corresponding first mounting holes 511 and second mounting holes 521. This invention does not specifically limit the specific method used.

[0084] Reference Figure 10 In some embodiments, a rotating seat 120 is rotatably mounted on the frame 100, and there are multiple jigs 200. All jigs 200 are mounted on the rotating seat 120 and arranged at intervals along the circumference of the rotating seat 120. The frame 100 is also equipped with a fifth driving device that is pulsatorically connected to the rotating seat 120. The fifth driving device can drive the rotating seat 120 to rotate and cause each jig 200 to rotate sequentially to the rivet feeding position 110.

[0085] In the above structure, by setting a rotating disk and installing multiple jigs 200 on the rotating base 120, the fifth drive device can rotate each jig 200 sequentially to the rivet feeding position 110, thereby feeding the feeding slots 210 of each jig 200 sequentially, and enabling the rivet feeding process to be carried out simultaneously with the assembly process of other parts of the caster 500, which is beneficial to improving the assembly efficiency of the caster 500.

[0086] Specifically, refer to Figure 10 In addition to the rivet feeding position 110, the frame 100 also has a first hub feeding position, a roller feeding position, a first assembly position, a second hub feeding position, a second assembly position, a stamping position, and a unloading position. The first hub feeding position has a first hub feeding device and a first hub clamping device on one side, the roller feeding position has a roller feeding device and a roller clamping device on one side, the first assembly position has a first pressing device for assembling the roller 530 and the first hub 510 on one side, the second hub feeding position has a second hub feeding device and a second hub clamping device on one side, the second assembly position has a second pressing device for assembling the roller 530 and the second hub 520 on one side, the stamping position has a stamping device for stamping the caster 500, and the unloading position has an unloading device. The fifth drive device can drive the rotating seat 120 to rotate relative to the frame 100 and drive each fixture 200 to rotate sequentially to the above-mentioned work positions, so that each work position can work synchronously, thereby improving the caster assembly efficiency of the caster assembly machine.

[0087] It is understood that the fifth driving device may specifically be a rotary cylinder, or it may be a rotary hydraulic cylinder, a motor or other rotary driving device, and the present invention does not specifically limit it.

[0088] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A rivet feeding mechanism, characterized in that, include: The frame (100) is provided with a rivet feeding position (110), and the rivet feeding position (110) is provided with a fixture (200), and the fixture (200) is provided with at least two feeding slots (210). The storage device (300) includes a storage tray (310) disposed on the frame (100), and the storage tray (310) has storage slots (311) that correspond one-to-one with all the discharge slots (210). The clamping assembly (400) includes a movable base (410) and clamping parts (420) corresponding to all of the feeding slots (210). The movable base (410) is movably mounted on the frame (100) and can reciprocate between the rivet feeding position (110) and the storage device (300). All of the clamping parts (420) are mounted on the movable base (410). When the moving seat (410) moves close to the storage tray (310), all the clamping parts (420) are aligned with all the storage slots (311) one by one, and each clamping part (420) can obtain the rivet in the corresponding storage slot (311); When the moving seat (410) moves close to the rivet feeding position (110), all the clamping parts (420) are aligned with all the feeding slots (210) one by one, and each clamping part (420) can place the rivet in the corresponding feeding slot (210); Each of the feeding troughs (210) is provided with a magnetic suction component on its bottom wall, which is capable of attracting rivets; The magnetic suction assembly includes a magnet (220) disposed on the bottom wall of the feeding trough (210) and a shielding member (230) covering the upper surface of the magnet (220), wherein the magnet (220) is embedded in the shielding member (230); At least one set of snap-fit ​​components is provided between the fixture (200) and the frame (100). The snap-fit ​​components include a first snap-fit ​​part (240) and a second snap-fit ​​part (250). The first snap-fit ​​part (240) has a slot (241) that can snap-fit ​​with the second snap-fit ​​part (250). One of the first snap-fit ​​part (240) and the second snap-fit ​​part (250) is provided in the fixture (200), and the other is provided in the frame (100). The clamping assembly (400) further includes a mounting bracket (450) disposed on the frame (100), the movable seat (410) is movably mounted on the mounting bracket (450), the mounting bracket (450) is equipped with a second driving device that is pulsatorically connected to the movable seat (410), the second driving device is capable of driving the movable seat (410) to reciprocate between the rivet feeding position (110) and the storage device (300), and the movable seat (410) is equipped with a third driving device (460). All of the clamping parts (420) are connected to the third driving device (460) for transmission, and the third driving device (460) can drive all the clamping parts (420) to reciprocate in the up and down direction; The clamping part (420) is provided with a receiving cavity (421), and a hollow push rod (430) is movably inserted in the receiving cavity (421). A negative pressure channel (431) is formed inside the hollow push rod (430) and communicates with the receiving cavity (421). A guide part (440) is provided at the lower edge of the receiving cavity (421). The moving seat (410) is equipped with a fourth driving device (470) that is pulsatorically connected to the hollow push rod (430). The fourth driving device (470) can drive the hollow push rod (430) to move along the axial direction of the receiving cavity (421).

2. The rivet feeding mechanism according to claim 1, characterized in that, The storage tray (310) is movably mounted on the frame (100). The storage device (300) further includes a first drive device (320) mounted on the frame (100). The first drive device (320) is capable of driving the storage tray (310) to rotate relative to the frame (100). When the storage tray (310) is rotated to a preset angle, the moving seat (410) can move closer to the storage tray (310) and make all the clamping parts (420) aligned with all the storage slots (311).

3. The rivet feeding mechanism according to claim 2, characterized in that, The storage device (300) further includes a support base (330) provided on the frame (100), the support base (330) has an installation groove, the storage tray (310) is rotatably installed in the installation groove, the side wall of the installation groove has an inlet (340), and the first drive device (320) is installed on the support base (330). Each of the storage tanks (311) has an opening on its side wall that can communicate with the inlet (340). The first drive device (320) can drive the storage tray (310) to rotate relative to the support base (330) and make one of the openings communicate with the inlet (340).

4. A caster assembly machine, characterized in that, Includes the rivet feeding mechanism as described in any one of claims 1 to 3.

5. The caster assembly machine according to claim 4, characterized in that, A rotating seat (120) is rotatably mounted on the frame (100). There are multiple jigs (200). All jigs (200) are mounted on the rotating seat (120) and arranged at intervals along the circumference of the rotating seat (120). The frame (100) is also equipped with a fifth driving device that is pulsatorically connected to the rotating seat (120). The fifth driving device can drive the rotating seat (120) to rotate and cause each jig (200) to rotate sequentially to the rivet feeding position (110).

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