An automatic loading and unloading device for rivet processing

Abstract

This invention discloses an automatic loading and unloading device for rivet processing, belonging to the field of rivet conveying technology. It includes a base and a movable block. The base is equipped with a fixed cylinder and a mounting seat. A support block is provided on the top of the mounting seat, and a first linear track is mounted through the support block. An extension cylinder is mounted on the top of the fixed cylinder, and an annular plate is fixedly mounted on the outside of the extension cylinder. This invention uses an electromagnet coil and an inclined spring to drive the rivets upward, while simultaneously utilizing gravity for attitude correction to ensure the rivets are vertically downward. Lateral swaying is avoided by the sliding guide of the sidewall of the slot. The movable block and a cylinder inside the movable block collect the rivets that have moved onto the second linear track. Under the action of gravity and rear thrust, the rivets fall into the cylinder, achieving centralized collection. The first linear track is driven by a first drive motor to rotate a spiral blade covered with friction plates, which in turn moves the movable block, improving loading and unloading efficiency.

Description

Technical Field

[0001] This invention relates to the field of rivet conveying technology, and in particular to an automatic loading and unloading device for rivet processing. Background Technology

[0002] A rivet is a metal fastener used for permanent fastening. It consists of a head and a shaft. It achieves a firm connection between plates or components through riveting deformation. During the processing, it is necessary to transfer loose or rod-shaped semi-finished rivets from one station to the next.

[0003] During the rivet loading and unloading process, rivets tend to accumulate at the spiral track, and it is difficult to collect them, making it impossible to collect them in a concentrated manner for transfer.

[0004] Therefore, we propose an automatic loading and unloading device for rivet processing. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides an automatic loading and unloading device for rivet processing, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic loading and unloading device for rivet processing, comprising a base and a movable block, wherein a fixed cylinder and a mounting seat are provided on the base, a support block is provided on the top of the mounting seat, and a first linear track is mounted through the support block, an extension cylinder is mounted on the top of the fixed cylinder, an annular plate is fixedly mounted on the outside of the extension cylinder, a second linear track is provided on one side of the extension cylinder, an extension plate is provided on one side of the fixed cylinder, a feeding assembly is provided on the extension plate, a conveying assembly is provided below the second linear track on the fixed cylinder, and the device further comprises: a protective plate fixedly mounted on the annular plate, the annular plate... The internal structure is provided with several arc-shaped plates, and a fixed box is fixedly mounted on the annular plate. The arc-shaped plates extend into the interior of the fixed box. The conveying assembly includes a fixed frame fixedly connected to the fixed cylinder. Three rotating shafts are mounted on the fixed frame via couplings. A second drive motor is mounted on the guard plate. The output shaft of the second drive motor extends into the interior of the fixed frame and is mounted on a drive shaft via a coupling. A synchronous belt is tensioned around the outer ring of the drive shaft and the rotating shaft. A material tray is fixedly mounted inside the fixed cylinder. A spiral track is fixedly mounted on the material tray. A baffle is mounted on the spiral track. A cylinder is provided in the middle of the movable block. The cylinder is hollow inside.

[0007] In a preferred embodiment, the present invention can be further configured as follows: an electromagnet coil is provided on the inner side of the bottom of the fixed cylinder, an inclined spring is integrally formed on the outer ring of the bottom of the material tray, the inclined spring is adapted to the electromagnet coil, and an armature is welded to the bottom of the material tray.

[0008] In a preferred embodiment, the present invention may be further configured such that: a third drive motor is installed inside the fixed cylinder, the output shaft of the third drive motor is connected to a rotating rod via a coupling, the rotating rod extends to the top of the material tray and a rotating plate is welded thereon, and a gap is left between the rotating plate and the bottom of the material tray.

[0009] In a preferred embodiment, the present invention can be further configured such that: two arc-shaped blocks are welded to the top of the spiral track, and a first slot is provided between the two arc-shaped blocks in the spiral track, the first slot extending to the end of the spiral track, and the width of the first slot corresponding to the diameter of the rivet.

[0010] In a preferred embodiment, the present invention can be further configured as follows: a second slot is provided in the middle of the second linear track, the second slot is connected to the first slot, the width of the second slot is set to correspond to the rivet diameter, a second conveyor belt is installed on both sides of the second linear track in the second slot, and a third slot is provided on the rear side of the second linear track in the second slot, the width of the third slot being greater than the width of the second slot.

[0011] In a preferred embodiment, the present invention can be further configured such that: a limiting groove is formed at the bottom of the second linear track, the limiting groove is adapted to the limiting block, and a groove is formed at the bottom of the second linear track.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the movable block has extension strips on both sides, the cylinder has a diameter slightly larger than the width of the movable block, the cylinder has protrusions on both sides, the cylinder has a height slightly longer than the rivet length, the cylinder has a vertical groove on its side wall, a limiting block is engaged in the vertical groove, the limiting block is L-shaped and extends into the interior of the groove.

[0013] In a preferred embodiment, the present invention can be further configured as follows: a protective plate is welded to the annular plate, arc-shaped plates are spaced apart inside the annular plate, a fixing box is threaded onto the annular plate, a base plate is welded between the arc-shaped plates, adjacent arc-shaped plates and the base plate form a feeding area, and the feeding area extends into the interior of the fixing box.

[0014] In a preferred embodiment, the present invention can be further configured as follows: a through groove is provided at the bottom of the first linear track, a first drive motor is threadedly installed at the bottom of the first linear track, a helical blade is welded on the output shaft of the first drive motor, a friction plate is laid on the outer surface of the helical blade, the helical blade and the friction plate extend into the through groove and abut against the bottom of the movable block, and a limit plate is provided on one side of the first linear track.

[0015] In a preferred embodiment, the present invention can be further configured as follows: the feeding assembly includes a first fixing frame fixedly disposed on one side of the extension plate, a fixing plate welded to the top of the first fixing frame, a first opening on the fixing plate, a second fixing frame fixedly disposed on the top of the first opening on the fixing plate, a first electric telescopic mechanism threadedly mounted on one side of the first fixing frame, a second electric telescopic mechanism threadedly mounted on one side of the second fixing frame, the first electric telescopic mechanism and the second electric telescopic mechanism being disposed on the same side, and a first through hole being opened on the side of the second fixing frame near the fixing frame.

[0016] The beneficial effects of this invention are:

[0017] This invention uses an electromagnet coil and an inclined spring to drive the rivet upward. When the rivet rises to the top along the spiral track, two symmetrically arranged arc blocks and the first slot force the rivet rod to hang down naturally. Gravity is used to correct the posture and ensure that the rivet is vertically downward. The sliding guide of the side wall of the slot prevents lateral swaying and blockage.

[0018] The rivets that move to the second linear track are collected by the movable block and the cylinder set inside the movable block. Under the action of gravity and the rear thrust, the rivets fall into the cylinder in sequence to achieve centralized collection. After collection, they are transferred to the first linear track by an external robotic arm. The first drive motor drives the spiral blade covered with friction plates to rotate, which drives the movable block to move, thus improving the loading and unloading efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall rear view structure of the present invention;

[0021] Figure 3 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the active block structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the main view of the second linear track structure of the present invention;

[0024] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point B;

[0025] Figure 7 This is a schematic diagram of the fixing frame structure of the present invention;

[0026] Figure 8This is a schematic diagram of the main structure of the extension plate of the present invention;

[0027] Figure 9 This is a schematic cross-sectional view of the first fixed frame structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the internal structure of the second electric telescopic machine of the present invention;

[0029] Figure 11 This is a schematic diagram of the first drive motor structure of the present invention;

[0030] Figure 12 This is a bottom view of the fixing plate structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the second slot structure of the present invention;

[0032] Figure 14 This is a schematic diagram of the groove structure of the present invention;

[0033] Figure 15 This is a schematic diagram of part of the synchronous belt structure of the present invention.

[0034] In the diagram: 1. Base; 2. Mounting base; 3. Connecting plate; 4. Control plate; 5. Fixing cylinder; 6. Annular plate; 7. Extension cylinder; 8. Material tray; 9. Spiral track; 10. Rotating rod; 11. Rotating plate; 12. First linear track; 13. Support block; 14. First drive motor; 15. Limiting plate; 16. Extension plate; 17. First conveyor belt; 18. Second linear track; 19. Guard plate; 20. Arc plate; 21. Arc block; 22. Baffle; 23. First slot; 24. First electric telescopic mechanism; 25. First fixing frame; 26. Fixing plate; 27. Second electric telescopic mechanism; 28. Second fixing frame; 29. ​​Fixing Frame; 30. Rotating shaft; 31. Synchronous belt; 32. Second drive motor; 33. Drive shaft; 34. First contact plate; 35. Movable block; 36. Extension strip; 37. Cylinder; 38. Limiting block; 39. Second empty slot; 40. Second conveyor belt; 41. Limiting slot; 42. Groove; 43. First through hole; 44. First opening; 45. Second through hole; 46. Discharge area; 47. Fixed box; 48. Third empty slot; 49. Spiral blade; 50. Movable pallet; 51. Movable slot; 52. Rotating column; 53. Connecting rope; 54. Rack; 55. Second opening; 56. Second contact plate; 57. Third electric telescopic mechanism. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-15 An automatic loading and unloading device for riveting includes a base 1, a fixed cylinder 5 and a mounting seat 2 threadedly mounted on the base 1, a support block 13 welded to the top of the mounting seat 2, and a first linear track 12 threadedly mounted through the support block 13. An extension cylinder 7 is welded to the top of the fixed cylinder 5, an annular plate 6 is integrally formed on the outside of the extension cylinder 7, a second linear track 18 is welded to one side of the extension cylinder 7, an extension plate 16 is welded to one side of the fixed cylinder 5, a feeding assembly is provided on the extension plate 16, and a conveying assembly is provided below the second linear track 18 on the fixed cylinder 5.

[0037] It also includes a movable block 35, a cylinder 37 is provided in the middle of the movable block 35, the inside of the cylinder 37 is hollow, and extension strips 36 are provided on both sides of the movable block 35.

[0038] Furthermore, the diameter of cylinder 37 is slightly larger than the width of movable block 35, protrusions are provided on both sides of cylinder 37, and the height of cylinder 37 is slightly longer than the length of rivet.

[0039] The bottom of the first linear track 12 is provided with a through groove, and the bottom of the first linear track 12 is threaded with a first drive motor 14. The output shaft of the first drive motor 14 is welded with a spiral blade 49. The outer surface of the spiral blade 49 is covered with friction plates. The spiral blade 49 and the friction plates extend into the through groove at the bottom of the first linear track 12 and abut against the bottom of the movable block 35. A limit plate 15 is provided on one side of the first linear track 12.

[0040] The surface of the spiral blade 49 is covered with friction pads, which increases the friction with the bottom of the movable block 35. The spiral blade 49 extends into the through groove at the bottom of the track, and its rotation directly pushes the movable block 35 placed on the track to move along the length of the track. The limiting plate 15 is set on one side of the track to constrain the movable block 35.

[0041] A material tray 8 is provided inside the fixed cylinder 5. The material tray 8 is integrally formed with a spiral track 9. A baffle 22 is integrally formed on the spiral track 9.

[0042] An electromagnet coil is installed on the inner bottom of the fixed cylinder 5, and an inclined spring piece adapted to the electromagnet coil is integrally formed on the outer bottom ring of the material tray 8. An armature adapted to the electromagnet coil is welded to the bottom of the material tray 8 (not shown in the figure). By supplying power to the electromagnet coil, the electromagnet coil generates an attractive force on the armature. The armature drives the entire material tray 8 to make a slight elliptical motion along the inclined direction of the spring piece. The spiral track 9 follows the same elliptical motion, causing the rivet to climb along the spiral tangent direction on the track.

[0043] Furthermore, a third drive motor is installed inside the fixed cylinder 5. The output shaft of the third drive motor is connected to a rotating rod 10 via a coupling. The rotating rod 10 extends to the top of the material tray 8 and a rotating plate 11 is welded thereon. A gap is left between the rotating plate 11 and the bottom of the material tray 8.

[0044] The rotating plate 11 is located above the material tray 8 but with a gap, so it will not interfere with the vibration feeding. When rivets accumulate and block the entrance of the spiral track 9, the third drive motor is started to drive the rotating plate 11 to rotate. Its edge is used to disperse or guide the accumulated rivets into the spiral track 9 to restore feeding.

[0045] A material discharge mechanism is provided on the spiral track 9. The material discharge mechanism includes two arc-shaped blocks 21 welded and fixed to the top of the spiral track 9. A first slot 23 is provided in the middle of the two arc-shaped blocks 21 on the spiral track 9. The first slot 23 extends to the end of the spiral track 9.

[0046] Furthermore, the spiral track 9 is connected to the second linear track 18, and a second slot 39 is provided in the middle of the second linear track 18. The second slot 39 is connected to the first slot 23, and the widths of the first slot 23 and the second slot 39 are set to correspond to the diameter of the rivet.

[0047] The second linear track 18 is equipped with second conveyor belts 40 on both sides of the second slot 39. The second linear track 18 is provided with a third slot 48 on the rear side of the second slot 39. The width of the third slot 48 is greater than the width of the second slot 39.

[0048] A protective plate 19 is welded onto the annular plate 6. Several arc-shaped plates 20 are spaced apart inside the annular plate 6. A fixing box 47 is threaded onto the annular plate 6. A base plate is welded between the arc-shaped plates 20. Adjacent arc-shaped plates 20 and the base plate form several material feeding areas 46. The material feeding areas 46 all extend into the interior of the fixing box 47. The interior of the fixing box 47 is hollow.

[0049] The first linear track 12 abuts against one side of the annular plate 6. The material feeding area 46 provided on the annular plate 6 is connected to the first linear track 12, and a second through hole 45 is provided at the connection between the annular plate 6 and the first linear track 12.

[0050] The conveying assembly includes a fixed frame 29 welded to the fixed cylinder 5. Three rotating shafts 30 are mounted on the fixed frame 29 via couplings. A second drive motor 32 is threaded onto the guard plate 19. The output shaft of the second drive motor 32 extends into the interior of the fixed frame 29 and is mounted on a drive shaft 33 via a coupling. A synchronous belt 31 is tensioned around the outer ring of the drive shaft 33 and the rotating shafts 30.

[0051] Furthermore, the conveying assembly is positioned directly below the second linear track 18. Two synchronous belts 31 are provided, positioned above the fixed frame 29. Both synchronous belts 31 are trapezoidal in shape and driven by the drive shaft 33. The distance between the two synchronous belts 31 is consistent with the width of the movable block 35, and the upper surfaces of the two synchronous belts 31 abut against the bottom of the extension strip 36.

[0052] The second drive motor 32 drives the drive shaft 33 to rotate, which in turn drives the synchronous belt 31 to move. The synchronous belt 31 drives the moving block 35 to move, which in turn moves the moving block 35 to below the second linear track 18.

[0053] Furthermore, the height of the movable block 35 is set lower than the height of the cylinder 37. The cylinder 37 has four vertical slots on its side wall above the movable block 35. Limiting blocks 38 are installed in the vertical slots and can move up and down within the vertical slots.

[0054] Specifically, the limiting block 38 is L-shaped, the bottom of the second linear track 18 is provided with a limiting groove 41 that matches the limiting block 38, and the second linear track 18 is provided with a groove 42 in the middle of the bottom of the second empty groove 39.

[0055] When the trapezoidal synchronous belt 31 moves the movable block 35, the limiting block 38 extends into the groove 42. When the movable block 35 moves below the second linear track 18, the limiting blocks 38 that move around the top of the cylinder 37 extend into the groove 42. The limiting blocks 38 enter the limiting groove 41 that extends into the groove 42, so that the movable block 35 is parallel to the second empty groove 39 and the third empty groove 48, which makes it easy to move to the bottom of the third empty groove 48. The second conveyor belt 40 transports the rivet to the top of the third empty groove 48 and drops it into the cylinder 37, completing the collection operation.

[0056] The feeding assembly includes a first fixing frame 25 welded to one side of the extension plate 16. A fixing plate 26 is welded to the top of the first fixing frame 25. The fixing plate 26 is also welded to the fixing frame 29. A first opening 44 is provided on the fixing plate 26. A second fixing frame 28 is welded to the outer ring of the fixing plate 26 at the first opening 44. A first electric telescopic mechanism 24 is threadedly installed on one side of the first fixing frame 25. A second electric telescopic mechanism 27 is threadedly installed on one side of the second fixing frame 28. The first electric telescopic mechanism 24 and the second electric telescopic mechanism 27 are located on the same side. A first through hole 43 is provided on the side of the second fixing frame 28 near the fixing frame 29.

[0057] Furthermore, a movable support plate 50 is placed below the second fixed frame 28 in the first fixed frame 25. A movable block 35 is placed on the movable support plate 50. A connecting rod is threaded to one side of the movable support plate 50. A movable groove 51 is opened on the inner wall of the first fixed frame 25 corresponding to the connecting rod. The connecting rod extends into the interior of the movable groove 51. A connecting rope 53 is provided on both the movable support plate 50 and the connecting rod. A cavity is opened inside the second electric telescopic mechanism 27. Two rotating columns 52 are installed in the cavity through a coupling. Driven gears are sleeved on the two rotating columns 52. Racks 54 are threaded on both sides of the end of the second electric telescopic mechanism 27 corresponding to the rotating columns 52. A second opening 55 is opened at the end of the second electric telescopic mechanism 27. The connecting rope 53 extends into the interior of the second electric telescopic mechanism 27 and is wound around the rotating columns 52.

[0058] The second electric telescopic mechanism 27 retracts at its end, thereby winding the connecting rope 53. This causes the movable support plate 50 connected to the connecting rope 53 to move upward. When the movable support plate 50 moves above the first opening 44 and its upper surface is at the same level as the first through hole 43, the movable block 35 extends to one side of the end of the second electric telescopic mechanism 27. A second touch plate 56 is welded to the end of the second electric telescopic mechanism 27, and a recess is provided below the second touch plate 56 at the end of the second electric telescopic mechanism 27. A third electric telescopic mechanism is threaded into the recess. 57. When the extension strips 36 on both sides of the movable block 35 abut against the second touch plate 56, the end of the third electric telescopic mechanism 57 extends out and abuts against the bottom of the extension strip 36, thereby clamping the extension strip 36. The end of the second electric telescopic mechanism 27 is driven to extend, and the movable block 35 on the movable support plate 50 is sent to the top of the two synchronous belts 31 through the first through hole 43. When the other side of the movable block 35 abuts against the first touch plate 34, the end of the third electric telescopic mechanism 57 retracts, and the movable block 35 falls onto the synchronous belt 31. The movable block 35 is then driven to move by the synchronous belt 31.

[0059] One end of the connecting rope 53 is fixed to the movable pallet 50 and the connecting rod, and the other end extends into the second electric telescopic machine 27 and is wound around the rotating column 52. When the telescopic rod of the second electric telescopic machine 27 is retracted, it drives the rack 54 to move, drives the driven gear and the rotating column 52 to rotate, thereby winding the connecting rope 53 and pulling up the movable pallet 50 and the movable block 35 on it through the connecting rod.

[0060] Furthermore, a first conveyor belt 17 is also installed on the fixed plate 26, and a connecting plate 3 is threadedly installed on one side of the base 1, with a control plate 4 installed on the connecting plate 3.

[0061] Working principle:

[0062] When this device is in use, the rivets to be processed are placed on the material tray 8 inside the fixed cylinder 5. The electromagnet coil at the bottom of the fixed cylinder 5 is energized, which drives the rivets on the spiral track 9 to climb to the top along the tangent of the spiral track 9. The baffle 22 integrally formed on the spiral track 9 prevents the rivets from accumulating or getting stuck. If the inlet is blocked, the third drive motor is started, which drives the rotating plate 11 to rotate and disperse the accumulated rivets.

[0063] When the rivet climbs to the top of the spiral track 9, it is guided to the middle position by the guide channel formed by two arc blocks 21. The top of the spiral track 9 has a first slot 23 that runs through its width. Under the action of vibration thrust and gravity, the rivet falls into the first slot 23 and continues to vibrate forward into the second slot 39 on the second straight track 18. The second slot 39 is directly opposite the first slot 23 and is connected to the first slot 23, ensuring that the rivet can smoothly enter the second straight track 18 and move to the front of the third slot 48 through the second guide belt.

[0064] An empty movable block 35 is placed on the first conveyor belt 17 on the fixed plate 26. The first conveyor belt 17 feeds the movable block 35 into the first fixed frame 25. The first electric telescopic mechanism 24 pushes the movable block 35 onto the movable pallet 50. The end of the second electric telescopic mechanism 27 retracts, causing the rack 54 to move, driving the driven gear and the rotating column 52 to rotate, winding the connecting rope 53. The connecting rope 53 pulls the connecting rod and the movable pallet 50, lifting the movable pallet 50 and the movable block 35 on it upwards until the movable pallet 50 reaches above the first opening 44, and the extension strip 36 on the movable block 35 abuts against the second contact plate 56 at the end of the second electric telescopic mechanism 27. The end of the third electric telescopic mechanism 57 extends out and abuts against the bottom of the extension strip 36, thereby clamping the extension strip 36 and further clamping the movable block 35.

[0065] The second electric telescopic mechanism 27 drives the telescopic rod to extend, pushing the clamped movable block 35 through the first through hole 43 to the top of the two synchronous belts 31 of the conveying assembly located below the second linear track 18. When the other side of the movable block 35 touches the first contact plate 34 on the fixed plate 26, the end of the third electric telescopic mechanism 57 retracts, releasing the clamp. The movable block 35 falls between the two trapezoidal synchronous belts 31 and is held in place by the protrusions on the synchronous belts 31. The second drive motor 32 drives the synchronous belts 31 to move.

[0066] During the movement, the L-shaped limiting block 38 at the top of the cylinder 37 in the middle of the movable block 35 enters the groove 42 opened in the middle section of the bottom of the second linear track 18, and the L-shaped limiting block 38 is embedded in the limiting groove 41, ensuring that the hollow opening of the cylinder 37 is precisely aligned with the second hollow groove 39 for rivet collection.

[0067] The rivet at the second slot 39 of the second linear track 18 enters the third slot 48 and falls into the cylinder 37 of the movable block 35 below, which has been precisely positioned. The height of the cylinder 37 is slightly longer than the rivet, ensuring that the rivet is completely submerged and protected to prevent it from falling off during transport.

[0068] After the rivets are loaded, the synchronous belt 31 of the conveying component continues to operate, pushing the movable block 35 forward. The movable block 35 stops after it is disengaged from the synchronous belt 31 to avoid affecting the collection operation in the third empty slot 48. Subsequently, the robotic arm grabs the movable block 35 and transfers the rivets into the first linear track 12 for loading. The first drive motor 14 at the bottom of the first linear track 12 is started, and the spiral blades 49 on its output shaft drive the friction plate to rotate, pushing the movable block 35 placed on the track to move along the first linear track 12. The forward rotation is for loading into the subsequent processing flow, and the reverse rotation is for storage in the unloading area 46 through the second through hole 45, which is convenient for subsequent operations.

[0069] In this embodiment, the rivet length is set to L, the track gap height of the spiral track 9 is set to H, and several first cameras are set on the outside of the extension cylinder 7. The first cameras cover the entire material tray 8, and the rivets are then detected.

[0070] If L≥H, the first camera observes that the bottom of the rivet is in contact with the horizontally placed rivet on the lower spiral track 9, which affects the normal upward movement of the lower rivet, causing blockage on the spiral track 9. The rivet accumulates in the middle section of the spiral pipe 9, affecting the normal upward conveying of the rivet on the spiral track 9. At this time, an external robotic arm intervenes to pull out the rivet and place it on one side of the base 1 for subsequent manual inspection and manual processing.

[0071] If L < H, during the upward spiral feeding process of this section, the vertical rivets do not affect the horizontal rivets below, and the rivets slowly change from a horizontal state to a vertical state and continue to be fed upward normally.

[0072] Furthermore, the spacing between the trapezoidal protrusions of the synchronous belt 31 is set to D, the width of the extension strip 36 is set to W, the thrust of the second electric telescopic mechanism 27 is set to F, the weight of the movable block 35 is set to M, F / M is the theoretical acceleration of the movable block 35, the critical acceleration of the movable block 35 is set to A, and several second cameras are installed, with the second cameras facing the feeding assembly and the conveying assembly.

[0073] When D > W, the extension strip 36 wobbles between the trapezoidal protrusions. The camera detects that the movable block 35 is swaying during transport, and the rivet falls onto the fixed frame 29. That is, the movable block 35 fails to move normally to the opening of the third slot 48 to receive the rivet falling on the second linear track 18. This proves that the cylinder 37 is misaligned with the second slot 39. At the same time, the limiting block 38 on the cylinder 37 is not fully aligned with the limiting slot 41. At this time, manual intervention is required to replace the synchronous belt 31, adjust the protrusion spacing, and then restart the collection operation.

[0074] Furthermore, the device energizes the electromagnet coil at the bottom of the fixed cylinder 5, causing the rivets on the spiral track 9 to vibrate and climb upwards along the tangent of the spiral track 9. The vibration is transmitted to the synchronous belt 31 through the rigidly connected fixed frame 29, which also affects the extension bar 36. At this time, the synchronous belt 31 is also affected and produces a slight vibration, which in turn causes the extension bar 36 between the trapezoidal protrusions to shake further. The violent shaking of the extension bar increases the resistance of the movable block 35, resulting in uneven load on both sides of the synchronous belt 31, making the movable block 35 swing more severely. The camera not only detects that the rivets have failed to fall smoothly into the cylinder 37 in the middle of the movable block 35, but also that the movable block 35 is at risk of falling onto the fixed frame 29. At this time, the machine is stopped, and damping material is added to the bottom of the base 1 to reduce the risk of vibration transmission of the entire device. At the same time, the electromagnet current is controlled to limit the vibration amplitude and reduce the impact of the electromagnet on the external fixed frame 29.

[0075] Furthermore, the timing belt 31 is replaced so that D=W. At this time, the maximum length of the rivet L is controlled to be less than H to prevent the rivets from accumulating in the spiral track 9 and the first empty slot 23, which would affect the subsequent rivet conveying speed and prevent the rivets from being conveyed too quickly, causing the rivets to continue to be fed after filling the cylinder 37 and fall onto the fixed frame 29.

[0076] When D < W, the extension bar 36 fails to fully enter between the two protrusions, so the movable block 35 tilts slightly upward and gets stuck in the groove 42, unable to receive the rivet, and the rivet falls onto the fixing bracket 29.

[0077] Furthermore, when D < W, the camera detects that the synchronous belt 31 vibrates violently. At the same time, when the groove 42 successfully guides the L-shaped limiting block 38 into the limiting groove 41, interference occurs. At this time, the extension strip 36 deforms and squeezes the protrusion, causing the extension strip 36 to deform and increase the friction between it and the synchronous belt 31. This causes fluctuations in the output power of the second drive motor 32, indirectly causing power supply fluctuations. At this time, the power change of the second drive motor 32 is monitored externally. When the movable block 35 is disengaged from the synchronous belt 31, the deformation of the extension strips 36 on both sides is clearly observed. At this time, the rivets in the movable block 35 are manually transferred to other movable blocks 35, and the movable block 35 is scrapped to avoid greater losses.

[0078] When D=W, the camera detects that the extension bar 36 is slightly clamped by the protrusion, the movable block 35 moves smoothly without shaking, the precise positioning is successful, and the rivet on the second linear track 18 falls into the interior of the cylinder 37.

[0079] After long-term operation, the synchronous belt 31 wears down, causing D to increase. At this time, W remains unchanged, resulting in D > W. The moving block 35 vibrates with an amplitude of ±1.5mm during conveying, and the cylinder 37 deviates. The camera detects that the rivet has fallen onto the fixed frame 29. At this time, the conveying operation is paused for re-inspection to ensure that the conveying components are not blocked.

[0080] When F / M < A, the second camera detects that the moving block 35 is stuck in the first opening 44 and has not been sent to the synchronous belt 31. At this time, the feeding is interrupted and the program is re-inspected.

[0081] When F / M≈A, the movable block 35 touches the first contact plate 34, and the movable block 35 passes through the first through hole 43 at a constant speed and falls smoothly onto the synchronous belt 31, then the feeding operation proceeds normally.

[0082] When F / M > A, the movable block 35 impacts the first contact plate 34 at high speed, generating rebound kinetic energy. The movable block 35 disengages from the synchronous belt 31 and falls onto the fixed frame 29. At this time, the third electric telescopic machine 57 does not retract in time, causing the end of the third electric telescopic machine 57 to deform, affecting subsequent feeding operations.

[0083] When D > W and F / M > A, the movable block 35 tilts on the synchronous belt 31. The excessive thrust F causes the movable block 35 to hit the first contact plate 34. At this time, the movable block 35 is deflected and cannot enter the groove 42 at all. At the same time, the movable block 35 falls onto the fixed frame 29, causing damage to the synchronous belt 31. The movable block 35 is scrapped. At the same time, the process needs to be inspected and the thrust of the second electric telescopic machine 27 needs to be further adjusted.

[0084] When D < W and F / M < A, the interference fit causes the extension strip 36 to deform, causing the movable block 35 to get stuck at the entrance of the synchronous belt 31 and unable to enter the groove 42 and the subsequent limiting groove 41, thus preventing normal material collection operations. At this time, manual intervention is required to inspect the synchronous belt 31 and the second electric telescopic machine 27.

[0085] When D=W and F / M≈A, the system operates normally. The movable block 35 moves normally to the groove 42, the limit block 38 enters the limit groove 41 normally, and the cylinder 37 moves to the bottom of the third empty groove 48 under the action of the synchronous belt 31, and the rivet collection is carried out normally.

[0086] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship 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 limitations on this invention.

[0087] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0088] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic loading and unloading device for rivet processing, characterized in that, The system includes a base (1) and a movable block (35). The base (1) is provided with a fixed cylinder (5) and a mounting base (2). A support block (13) is provided on the top of the mounting base (2), and a first linear track (12) is mounted via the support block (13). An extension cylinder (7) is mounted on the top of the fixed cylinder (5), and an annular plate (6) is fixedly mounted on the outside of the extension cylinder (7). A second linear track (18) is provided on one side of the extension cylinder (7), and an extension plate (16) is provided on one side of the fixed cylinder (5). A feeding assembly is provided on the extension plate (16). A conveying assembly is provided below the second linear track (18) on the fixed cylinder (5). The system also includes: A protective plate (19) is fixedly installed on the annular plate (6). Several arc-shaped plates (20) are spaced apart inside the annular plate (6). A fixing box (47) is fixedly installed on the annular plate (6). The arc-shaped plates (20) extend into the interior of the fixing box (47). The conveying assembly includes a fixed frame (29) fixedly connected to the fixed cylinder (5). Three rotating shafts (30) are mounted on the fixed frame (29) via couplings. A second drive motor (32) is mounted on the guard plate (19). The output shaft of the second drive motor (32) extends into the interior of the fixed frame (29) and is mounted on a drive shaft (33) via a coupling. A synchronous belt (31) is tensioned around the outer ring of the drive shaft (33) and the rotating shafts (30). A material tray (8) is fixedly installed inside the fixed cylinder (5), a spiral track (9) is fixedly installed on the material tray (8), and a baffle (22) is installed on the spiral track (9). A cylinder (37) is provided in the middle of the movable block (35), and the cylinder (37) is hollow inside.

2. The automatic loading and unloading device for rivet processing according to claim 1, characterized in that, An electromagnet coil is provided on the inner side of the bottom of the fixed cylinder (5), and an inclined spring is integrally formed on the outer ring of the bottom of the material tray (8). The inclined spring is adapted to the electromagnet coil, and an armature is welded to the bottom of the material tray (8).

3. The automatic loading and unloading device for rivet processing according to claim 2, characterized in that, The fixed cylinder (5) is equipped with a third drive motor. The output shaft of the third drive motor is connected to a rotating rod (10) via a coupling. The rotating rod (10) extends to the top of the material tray (8) and is welded with a rotating plate (11). There is a gap between the rotating plate (11) and the bottom of the material tray (8).

4. The automatic loading and unloading device for rivet processing according to claim 1, characterized in that, Two arc-shaped blocks (21) are welded to the top of the spiral track (9). A first slot (23) is provided between the two arc-shaped blocks (21) of the spiral track (9). The first slot (23) extends to the end of the spiral track (9). The width of the first slot (23) is set to correspond to the diameter of the rivet.

5. The automatic loading and unloading device for rivet processing according to claim 4, characterized in that, The second linear track (18) has a second slot (39) in the middle, which is connected to the first slot (23). The width of the second slot (39) is set to correspond to the rivet diameter. The second linear track (18) has a second conveyor belt (40) installed on both sides of the second slot (39). The second linear track (18) has a third slot (48) on the rear side of the second slot (39), which is wider than the width of the second slot (39).

6. The automatic loading and unloading device for rivet processing according to claim 5, characterized in that, The bottom of the second linear track (18) is provided with a limiting groove (41), which is adapted to the limiting block (38), and the bottom of the second linear track (18) is provided with a groove (42).

7. An automatic loading and unloading device for rivet processing according to claim 6, characterized in that, The movable block (35) has extension strips (36) on both sides. The diameter of the cylinder (37) is slightly larger than the width of the movable block (35). The cylinder (37) has protrusions on both sides. The height of the cylinder (37) is slightly longer than the length of the rivet. The side wall of the cylinder (37) has a vertical groove. A limiting block (38) is installed in the vertical groove. The limiting block (38) is L-shaped and extends into the interior of the groove (42).

8. The automatic loading and unloading device for rivet processing according to claim 1, characterized in that, A protective plate (19) is welded on the annular plate (6). Arc-shaped plates (20) are spaced apart inside the annular plate (6). A fixing box (47) is threaded onto the annular plate (6). A base plate is welded between the arc-shaped plates (20). Adjacent arc-shaped plates (20) and the base plate form a feeding area (46). The feeding area (46) extends into the interior of the fixing box (47).

9. An automatic loading and unloading device for rivet processing according to claim 1, characterized in that, The first linear track (12) has a through groove at the bottom. The first drive motor (14) is threaded onto the bottom of the first linear track (12). A spiral blade (49) is welded onto the output shaft of the first drive motor (14). A friction plate is laid on the outer surface of the spiral blade (49). The spiral blade (49) and the friction plate extend into the through groove and abut against the bottom of the movable block (35). A limit plate (15) is provided on one side of the first linear track (12).

10. An automatic loading and unloading device for rivet processing according to claim 1, characterized in that, The feeding assembly includes a first fixed frame (25) fixedly disposed on one side of the extension plate (16), a fixed plate (26) welded to the top of the first fixed frame (25), a first opening (44) opened on the fixed plate (26), a second fixed frame (28) fixedly disposed on the top of the first opening (44) of the fixed plate (26), a first electric telescopic machine (24) threadedly installed on one side of the first fixed frame (25), a second electric telescopic machine (27) threadedly installed on one side of the second fixed frame (28), the first electric telescopic machine (24) and the second electric telescopic machine (27) are disposed on the same side, and a first through hole (43) is opened on the side of the second fixed frame (28) near the fixed frame (29).

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