Annular conveying equipment for conveying automobile parts

Abstract

The invention belongs to the technical field of intelligent manufacturing equipment, and particularly relates to annular conveying equipment for conveying automobile parts, which comprises a base, an annular guide rail is fixedly mounted at the upper end of the base, a moving plate is arranged on the upper side of the annular guide rail, and a plurality of limiting wheels are symmetrically and rotatably connected to the lower end of the moving plate. The weight of the automobile parts can be rapidly detected, the braking force of the annular conveying equipment can be automatically adjusted and controlled based on the weight, the power supply amount of the annular conveying equipment can be automatically adjusted and controlled based on the weight of the automobile parts, and then it is ensured that the whole conveying equipment can run at the stable conveying speed all the time; lubricating oil can be automatically added to the annular guide rail, so that the frictional resistance of the automobile parts in the conveying process is reduced, the conveying stability is ensured, and meanwhile, the adding frequency of the lubricating oil can be automatically regulated and controlled according to the weight of the conveyed automobile parts.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent manufacturing equipment, and in particular relates to a ring-shaped conveying device for conveying automobile parts. Background Art

[0002] Annular conveying equipment can realize uninterrupted circular conveying, so that automotive parts can continuously flow between various production stations, avoiding production stagnation caused by conveying interruptions, greatly improving the continuity and smoothness of production, and eliminating the need to wait for the handling and transfer of parts, reducing time waste in the production process, thereby improving overall production efficiency.

[0003] With the development of technology, magnetic levitation ring conveying equipment has been developed, which effectively solves the shortcomings of traditional belt-type or gear-structured ring conveying equipment in terms of transmission accuracy, speed and flexibility. For example, the patent with patent publication number CN109051821A proposes a magnetic levitation ring conveying equipment.

[0004] When using circular conveying equipment to circulate auto parts, since there are various auto parts and the weight of each auto part is different, a larger load requires a larger driving force to overcome the friction and gravity of the auto parts. Therefore, when using magnetic suspension circular conveying equipment, it is necessary to confirm the weight of the auto parts in advance, and then input accurate weight data to control the magnetic suspension circular conveying equipment to run at a stable speed. This work greatly affects the continuity of production and processing, and is prone to errors, affecting the processing of auto parts. The magnetic suspension conveying equipment has inertia during operation. When the stop command is issued, it is impossible to meet the safety requirements by relying solely on the resistance of the magnetic suspension system itself to quickly stop the equipment, especially when conveying heavier auto parts. The inertia generated will be greater, and the difficulty of controlling its stop will increase accordingly. If the braking force is insufficient, the auto parts cannot be stopped within a safe time, which is easy to cause collisions, damage to equipment or endanger the safety of personnel. However, if the maximum braking force is used regardless of the weight of the auto parts, the lighter auto parts will stop rapidly, which will bring a huge impact to the equipment and auto parts, easily causing damage to the equipment and parts, and thus affecting the conveying quality. Summary of the invention

[0005] The object of the present invention is to provide an annular conveying device for conveying automobile parts in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a circular conveying device for conveying automobile parts, comprising a base, a circular guide rail is fixedly installed on the upper end of the base, a movable plate is provided on the upper side of the circular guide rail, a plurality of limiting wheels are symmetrically rotatably connected to the lower end of the movable plate, a circular protrusion in contact with the limiting wheel is fixedly installed on the outer wall of the circular guide rail, a stator is installed on the upper end of the circular guide rail, a mover corresponding to the stator is fixedly installed on the lower end of the movable plate, and further comprising: A loading mechanism, mounted on the upper end of the movable plate; A weighing feedback mechanism is fixedly installed between the moving plate and the loading mechanism; A brake auxiliary mechanism is fixedly mounted on the lower end of the movable plate and arranged on the side of the annular guide rail; A brake force control mechanism is fixedly mounted at the lower end of the loading mechanism and is electrically connected to the brake auxiliary mechanism; A plurality of lubricating oil adding mechanisms are fixedly mounted outside the base and connected to the annular protrusion; A lubricating oil adding trigger mechanism is fixedly mounted on the upper end of the base and is electrically connected to the lubricating oil adding mechanism; The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the loading mechanism, the weighing feedback mechanism, the brake auxiliary mechanism, the brake force adjustment mechanism, the lubricating oil adding mechanism and the lubricating oil adding trigger mechanism respectively.

[0007] In the above-mentioned annular conveying equipment for conveying automobile parts, the loading mechanism includes a loading plate arranged on the upper side of the movable plate, and the lower end of the loading plate is symmetrically fixedly connected to a plurality of bearing rods, and the lower ends of the bearing rods pass through the lower end of the movable plate through holes opened on the surface of the movable plate, and the upper end of the movable plate and the lower end of the loading plate are fixedly connected with a plurality of bearing springs sleeved outside the bearing rods, and the inner wall of the corresponding hole of the movable plate is fixedly embedded with a fixed electromagnetic block in contact with the bearing rod, and the bearing rod is a magnetic rod.

[0008] In the above-mentioned annular conveying equipment for conveying automobile parts, the weighing feedback mechanism includes an insulating shell fixedly mounted on the outer wall of the movable plate, a vertically arranged weighing feedback resistor rod is fixedly mounted in the insulating shell, the lower end of the loading plate is fixedly connected with an insulating rod, the lower end of the insulating rod extends through the insulating shell, and the lower end rod wall of the insulating rod is fixedly connected with a weighing feedback conductive contact piece that is in electrical contact with the weighing feedback resistor rod.

[0009] In the above-mentioned annular conveying equipment for conveying automobile parts, the brake auxiliary mechanism includes a support rod fixedly connected to the lower end of the movable plate, the lower end of the support rod is fixedly connected to a mounting shell, and a plurality of push-pull rods are movably inserted on a side of the mounting shell close to the annular guide rail, and the ends of the plurality of push-pull rods located outside the mounting shell are fixedly connected to the same brake block, and the ends of the plurality of push-pull rods located inside the mounting shell are fixedly connected to the same push-pull plate, and the push-pull plate and the mounting shell are fixedly connected on the opposite side with a plurality of return springs sleeved on the outside of the push-pull rod, and the push-pull plate is fixedly connected to a thrust permanent magnet plate on the side away from the push-pull rod, and a thrust electromagnetic plate corresponding to the thrust permanent magnet plate is fixedly installed on the inner wall of the mounting shell.

[0010] In the above-mentioned annular conveying equipment for conveying automobile parts, the braking force regulating mechanism includes a regulating shell fixedly mounted at the lower end of the loading plate, a plurality of guide slide bars arranged side by side are fixedly mounted on the upper side of the inner wall of the regulating shell, a plurality of guide slide bars are externally slidably sleeved with the same sliding seat, a pushing permanent magnetic plate is fixedly connected to the side wall of the sliding seat, a pushing electromagnetic plate arranged corresponding to the position of the pushing permanent magnetic plate is fixedly mounted on the inner wall of the regulating shell, a brake feedback resistor rod is fixedly mounted on the upper side of the inner wall of the regulating shell, and the sliding A brake feedback conductive contact that is in electrical contact with the brake feedback resistor rod is fixedly mounted on the upper end of the seat, and the brake feedback conductive contact and the brake feedback resistor rod are connected in series to the power supply circuit of the thrust electromagnetic plate. An adjusting screw is rotatably connected to the lower side of the inner wall of the regulating shell, and an adjusting motor for driving the adjusting screw to rotate is fixedly mounted on the outer wall of the regulating shell. An adjusting seat is threadedly sleeved on the rod wall of the adjusting screw, and a connecting permanent magnet plate is fixedly connected to the upper end of the adjusting seat, and a connecting electromagnetic plate that is in contact with the connecting permanent magnet plate is fixedly connected to the lower end of the sliding seat.

[0011] In the above-mentioned annular conveying equipment for conveying automobile parts, the lubricating oil adding mechanism includes a micro pump fixedly mounted outside the base, an oil supply pipe is mounted on the micro pump, the annular guide rail is a hollow structure, one end of the oil supply pipe is fixedly connected to the annular guide rail, and a plurality of oil seepage holes are symmetrically opened on the outer wall of the annular guide rail.

[0012] In the above-mentioned annular conveying equipment for conveying automobile parts, the lubricating oil adding trigger mechanism includes a trigger shell fixedly mounted on the upper end of the base, a reciprocating screw is rotatably connected inside the trigger shell, a servo motor for driving the reciprocating screw to rotate is fixedly mounted on the outer wall of the trigger shell, a trigger plate is threadedly sleeved on the rod wall of the reciprocating screw, and two trigger switches are symmetrically fixedly mounted on the inner wall of the trigger shell.

[0013] In the above-mentioned annular conveying equipment for conveying automobile parts, the lower end of the adjustment seat is fixedly connected to a limit slider, and the bottom of the inner wall of the control shell is provided with a limit sliding groove that matches and slides with the limit slider.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the loading mechanism, weighing feedback mechanism, brake stop auxiliary mechanism and brake force control mechanism, the weight of automobile parts can be quickly detected after loading and fixing automobile parts, and the braking force of the circular conveying equipment can be automatically adjusted based on the weight. When the weight of the automobile parts is large, the braking force is automatically increased to ensure that the parts are stopped within a fixed time. At the same time, excessive braking force is avoided for lighter automobile parts, resulting in emergency stops, to prevent excessive impact and damage to automobile parts and equipment.

[0015] 2. Through the set weighing feedback mechanism, annular guide rail, movable plate, limiting wheel, annular protrusion, stator and mover, the power supply of the annular conveying equipment can be automatically adjusted based on the weight of automobile parts, thereby ensuring that the entire conveying equipment can always operate at a stable conveying speed without direct human intervention. It is more convenient and quick, making the conveying work more continuous and improving the conveying efficiency.

[0016] 3. The lubricant adding mechanism and lubricant adding trigger mechanism are provided to automatically add lubricant to the annular guide rail, thereby reducing the friction resistance of automobile parts during transportation and ensuring transportation stability. At the same time, the frequency of lubricant adding can be automatically adjusted according to the weight of the automobile parts being transported. When the transportation weight of the automobile parts is greater, the frequency of lubricant adding is automatically increased. This is because the greater the load, the greater the pressure on the lubricating film formed by the lubricating oil, and it is more likely to be damaged. More frequent addition of lubricating oil can ensure the continuous existence of the lubricating film, thereby maintaining a good lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 The middle part is a schematic diagram of the structure enlarged; Figure 3 It is a structural schematic diagram of the loading mechanism of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the weighing feedback mechanism of the present invention; Figure 5 is a cross-sectional structural schematic diagram of the brake auxiliary mechanism of the present invention; Figure 6 It is a side cross-sectional structural schematic diagram of the brake force magnitude regulating mechanism of the present invention; Figure 7It is a schematic cross-sectional structural diagram of the annular guide rail of the present invention; Figure 8 It is a cross-sectional structural schematic diagram of the lubricating oil adding trigger mechanism of the present invention; Fig. 9 It is a partial top view of the structure of the present invention.

[0018] In the figure: 1 base, 2 loading mechanism, 21 loading plate, 22 bearing rod, 23 sleeve hole, 24 bearing spring, 25 fixed electromagnetic block, 3 weighing feedback mechanism, 31 insulating shell, 32 weighing feedback resistor rod, 33 insulating rod, 34 weighing feedback conductive contact, 4 brake stop auxiliary mechanism, 41 support rod, 42 installation shell, 43 push-pull rod, 44 brake block, 45 push-pull plate, 46 reset spring, 47 thrust permanent magnet plate, 48 thrust electromagnetic plate, 5 brake force size adjustment mechanism, 51 adjustment shell, 52 guide slide rod, 53 sliding seat, 54 squeeze Push permanent magnet plate, 55 squeeze and push electromagnetic plate, 56 brake feedback resistor rod, 57 brake feedback conductive contact, 58 adjustment screw, 59 adjustment motor, 510 adjustment seat, 511 connect permanent magnet plate, 512 connect electromagnetic plate, 6 lubricating oil adding mechanism, 61 micro pump, 62 oil supply pipe, 63 oil seepage hole, 7 lubricating oil adding trigger mechanism, 71 trigger shell, 72 reciprocating screw rod, 73 servo motor, 74 trigger plate, 75 trigger switch, 8 annular guide rail, 9 moving plate, 10 limit wheel, 11 annular protrusion, 12 stator, 13 mover, 14 PLC controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 9 As shown, a circular conveying device for conveying automobile parts comprises a base 1, a circular guide rail 8 is fixedly mounted on the upper end of the base 1, a movable plate 9 is arranged on the upper side of the circular guide rail 8, a plurality of limiting wheels 10 are symmetrically rotatably connected to the lower end of the movable plate 9, a circular protrusion 11 in contact with the limiting wheels 10 is fixedly mounted on the outer wall of the circular guide rail 8, a stator 12 is mounted on the upper end of the circular guide rail 8, a mover 13 arranged corresponding to the stator 12 is fixedly mounted on the lower end of the movable plate 9, and further comprises: The loading mechanism 2 is installed on the upper end of the movable plate 9. The loading mechanism 2 includes a loading plate 21 arranged on the upper side of the movable plate 9. The lower end of the loading plate 21 is symmetrically fixedly connected with multiple load-bearing rods 22. The lower end of the load-bearing rod 22 passes through the lower end of the movable plate 9 through a sleeve hole 23 opened on the surface of the movable plate 9. The upper end of the movable plate 9 and the lower end of the loading plate 21 are fixedly connected with multiple load-bearing springs 24 sleeved outside the load-bearing rod 22. The inner wall of the movable plate 9 corresponding to the sleeve hole 23 is fixedly embedded with a fixed electromagnetic block 25 in contact with the load-bearing rod 22. The load-bearing rod 22 is a magnetic rod.

[0021] The weighing feedback mechanism 3 is fixedly installed between the moving plate 9 and the loading mechanism 2. The weighing feedback mechanism 3 includes an insulating shell 31 fixedly installed on the outer wall of the moving plate 9. A vertically arranged weighing feedback resistor rod 32 is fixedly installed in the insulating shell 31. The lower end of the loading plate 21 is fixedly connected with an insulating rod 33. The lower end of the insulating rod 33 extends into the insulating shell 31. The lower end rod wall of the insulating rod 33 is fixedly connected with a weighing feedback conductive contact piece 34 that is in electrical contact with the weighing feedback resistor rod 32.

[0022] The brake assist mechanism 4 is fixedly mounted on the lower end of the movable plate 9 and is arranged on the side of the annular guide rail 8. The brake assist mechanism 4 includes a support rod 41 fixedly connected to the lower end of the movable plate 9, and the lower end of the support rod 41 is fixedly connected to a mounting shell 42. A plurality of push-pull rods 43 are movably inserted on a side of the mounting shell 42 close to the annular guide rail 8. One end of the plurality of push-pull rods 43 located outside the mounting shell 42 is fixedly connected to the same brake block 44, and one end of the plurality of push-pull rods 43 located inside the mounting shell 42 is fixedly connected to the same push-pull plate 45. A plurality of return springs 46 sleeved on the outside of the push-pull rod 43 are fixedly connected to the opposite side of the push-pull plate 45 and the mounting shell 42. A thrust permanent magnet plate 47 is fixedly connected to the side of the push-pull plate 45 away from the push-pull rod 43, and a thrust electromagnetic plate 48 corresponding to the thrust permanent magnet plate 47 is fixedly mounted on the inner wall of the mounting shell 42.

[0023] The brake force size regulating mechanism 5 is fixedly mounted on the lower end of the loading mechanism 2 and is electrically connected to the brake auxiliary mechanism 4. The brake force size regulating mechanism 5 includes a regulating shell 51 fixedly mounted on the lower end of the loading plate 21. A plurality of guide slide bars 52 arranged side by side are fixedly mounted on the upper side of the inner wall of the regulating shell 51. The plurality of guide slide bars 52 are externally slidably sleeved with the same sliding seat 53. A pushing permanent magnetic plate 54 is fixedly connected to the side wall of the sliding seat 53. A pushing electromagnetic plate 55 arranged corresponding to the position of the pushing permanent magnetic plate 54 is fixedly mounted on the inner wall of the regulating shell 51. A brake feedback resistor rod 56 is fixedly mounted on the upper side of the inner wall of the regulating shell 51. A member electrically in contact with the brake feedback resistor rod 56 is fixedly mounted on the upper end of the sliding seat 53. The brake feedback conductive contact 57, the brake feedback conductive contact 57 and the brake feedback resistor rod 56 are connected in series to the power supply circuit of the thrust electromagnetic plate 48, the lower side of the inner wall of the regulating shell 51 is rotatably connected with an adjusting screw 58, the outer wall of the regulating shell 51 is fixedly provided with an adjusting motor 59 for driving the adjusting screw 58 to rotate, the rod wall of the adjusting screw 58 is threadedly sleeved with an adjusting seat 510, the upper end of the adjusting seat 510 is fixedly connected with a connecting permanent magnet plate 511, the lower end of the sliding seat 53 is fixedly connected with a connecting electromagnetic plate 512 which is in contact with the connecting permanent magnet plate 511, the lower end of the adjusting seat 510 is fixedly connected with a limiting slider, and the bottom of the inner wall of the regulating shell 51 is provided with a limiting sliding groove which is matched with the limiting slider for sliding connection.

[0024] A plurality of sets of lubricating oil adding mechanisms 6 are fixedly mounted outside the base 1 and connected to the annular protrusion 11. The lubricating oil adding mechanisms 6 include a micro pump 61 fixedly mounted outside the base 1. An oil supply pipe 62 is mounted on the micro pump 61. The annular guide rail 8 is a hollow structure. One end of the oil supply pipe 62 is fixedly connected to the annular guide rail 8. A plurality of oil seepage holes 63 are symmetrically provided on the outer wall of the annular guide rail 8.

[0025] The lubricating oil adding trigger mechanism 7 is fixedly mounted on the upper end of the base 1 and is electrically connected to the lubricating oil adding mechanism 6. The lubricating oil adding trigger mechanism 7 includes a trigger shell 71 fixedly mounted on the upper end of the base 1. A reciprocating screw rod 72 is rotatably connected inside the trigger shell 71. A servo motor 73 for driving the reciprocating screw rod 72 to rotate is fixedly mounted on the outer wall of the trigger shell 71. A trigger plate 74 is threadedly sleeved on the rod wall of the reciprocating screw rod 72. Two trigger switches 75 are symmetrically fixedly mounted on the inner wall of the trigger shell 71.

[0026] The PLC controller 14 is fixedly mounted on the upper end of the base 1 and is electrically connected to the loading mechanism 2, the weighing feedback mechanism 3, the brake auxiliary mechanism 4, the brake force size regulating mechanism 5, the lubricating oil adding mechanism 6 and the lubricating oil adding triggering mechanism 7 respectively.

[0027] The operating principle of the present invention is described as follows: the automobile parts are fixed on the upper end of the loading plate 21, and the moving plate 9 is driven by the cooperation of the moving plate 13 and the stator 12 to drive the loading plate 21 to move along the annular guide rail 8 (the cooperation of the moving plate 13 and the stator 12 is a well-known technology used in the existing magnetic suspension annular conveyor belt, which will not be described in detail here, and the patent publication number CN109051821A can also be referred to for further understanding), and the cooperation of the limiting wheel 10 and the annular protrusion 11 enables the moving plate 9 and the loading plate 21 to stably and smoothly perform the conveying work. After the automobile parts are initially fixed on the loading plate 21, wait for a period of time until the automobile parts are stable, and the weight of the automobile parts drives the load-bearing rod 22 to overcome the elastic force of the load-bearing spring 24 and move downward through the loading plate 21. Specifically, the greater the weight of the automobile parts, the greater the distance the load-bearing plate moves downward. After the automobile parts are relatively stable, the PLC controller 14 controls the power supply device to supply power to the fixed electromagnetic block 25, and the fixed electromagnetic block 25 is energized to generate magnetism, thereby fixing the load-bearing rod 22 made of the magnetic rod, so that the final fixed position of the loading plate 21 is fixed; After the loading plate 21 is relatively moved downward by the gravity of the automobile parts, the loading plate 21 drives the insulating rod 33 to relatively move downward in the insulating shell 31, thereby driving the weighing feedback conductive contact 34 to relatively slide on the weighing feedback resistor rod 32. Specifically, the greater the weight of the automobile parts, the greater the sliding distance of the weighing feedback conductive contact 34 on the weighing feedback resistor rod 32, thereby making the access resistance of the weighing feedback resistor rod 32 smaller, and the weighing feedback conductive contact 34 and the weighing feedback resistor rod 32 are connected in series to the power supply circuit of the mover 13. When the self-weight of the automobile parts is greater, the access resistance of the weighing feedback resistor rod 32 is smaller, and the power supply current of the mover 13 is greater, so that the mover 13 cooperates with the stator 12 to generate a greater driving force to drive the automobile parts to be transported, thereby compensating for the problem that the heavy-weight automobile parts need a greater driving force to overcome the friction resistance and gravity, and ensuring the stability of the conveying speed; When the automobile parts need to be braked, the PLC controller 14 controls the power supply device to supply power to the thrust electromagnetic plate 48. The thrust electromagnetic plate 48 generates the same magnetism as the thrust permanent magnet plate 47 when it is powered on, thereby driving the push-pull plate 45 to drive the push-pull rod 43 to push the brake block 44 toward the annular guide rail 8, so that the brake block 44 contacts the annular guide rail 8, and generates a braking force on the moving plate 9; During the braking process, the PLC controller 14 first controls the power supply device to supply power to the electromagnetic plate 512, and the electromagnetic plate 512 is energized to generate a magnetism opposite to that of the permanent magnet plate 511, so that the adjustment seat 510 and the sliding seat 53 are relatively firmly connected together. The PLC controller 14 then controls the adjustment motor 59 to work for 3 seconds, and the adjustment motor 59 drives the adjustment screw 58 to rotate. Through the threaded connection between the adjustment screw 58 and the adjustment seat 510, the adjustment seat 510 drives the sliding seat 53 to move further along the guide slide rod 52, so that the brake feedback conductive contact 57 is on the brake feedback resistor rod 5 6 further slides, so that the access resistance of the brake feedback resistor rod 56 is further reduced. The brake feedback conductive contact piece 57 and the brake feedback resistor rod 56 are connected to the power supply circuit of the thrust electromagnetic plate 48. The access resistance of the brake feedback resistor rod 56 is further reduced within 3 seconds, thereby gradually increasing the magnetic force of the thrust electromagnetic plate 48, so that the contact pressure between the brake block 44 and the annular guide rail 8 is gradually increased, and the moving plate 9 completes the braking work within 3 seconds in a gradually increasing braking force manner, making the braking more stable and avoiding the problem of excessively fast braking causing increased impact damage; It should also be specifically explained that when the automobile parts are initially fixed, the weighing feedback conductive contact piece 34 and the weighing feedback resistor rod 32 are also connected in series to the power supply circuit of the squeezing and pushing electromagnetic plate 55. When the weight of the automobile parts is greater, the access resistance of the weighing feedback resistor rod 32 is smaller, and the power supply current of the squeezing and pushing electromagnetic plate 55 is greater. The squeezing and pushing electromagnetic plate 55 is energized to generate the same magnetism as the squeezing and pushing permanent magnet plate 54, thereby driving the sliding seat 53 to slide a farther distance along the guide slide rod 52, and synchronously driving the brake feedback conductive contact piece 57 to slide a farther distance on the brake feedback resistor rod 56, so that the access resistance of the brake feedback resistor rod 56 is reduced, and then when the automobile parts are braked, for heavy automobile parts, the initial braking force is relatively large, ensuring that heavy automobile parts can be braked stably; After completing a braking stop, the PLC controller 14 controls the regulating motor 59 to move in the reverse direction for 3 seconds, so that the brake feedback conductive contact 57 moves to the initial position on the brake feedback resistor rod 56, and then waits for the next braking stop operation; When the conveying work is being performed, the PLC controller 14 synchronously controls the servo motor 73 to operate, and the servo motor 73 drives the reciprocating screw 72 to rotate. The threaded sleeve of the reciprocating screw 72 and the trigger plate 74 allows the trigger plate 74 to slowly move in the trigger shell 71 until the trigger plate 74 presses on one of the trigger switches 75. The PLC controller 14 receives a signal to control the micro pump 61 to work. The micro pump 61 cooperates with the oil supply pipe 62 to transport the lubricating oil stored in the external lubricating oil barrel into the annular guide rail 8, and then flows out through the oil seepage hole 63 to quickly add lubricating oil to the outer wall surface of the annular guide rail 8. The weighing feedback conductive contact 34 and the weighing feedback resistor rod 32 are also connected in series to the power supply circuit of the servo motor 73. The servo motor 73 is a DC motor. The greater the weight of the automobile parts, the smaller the access resistance of the weighing feedback resistor rod 32, and the greater the power supply current of the servo motor 73, which can speed up the movement speed of the trigger plate 74, so that the trigger plate 74 can press the trigger switch 75 faster, thereby increasing the frequency of adding lubricating oil.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A circular conveying device for conveying automobile parts, comprising a base (1), a circular guide rail (8) is fixedly mounted on the upper end of the base (1), a movable plate (9) is arranged on the upper side of the circular guide rail (8), a plurality of limit wheels (10) are symmetrically rotatably connected to the lower end of the movable plate (9), a circular protrusion (11) in contact with the limit wheels (10) is fixedly mounted on the outer wall of the circular guide rail (8), a stator (12) is mounted on the upper end of the circular guide rail (8), and a mover (13) arranged corresponding to the stator (12) is fixedly mounted on the lower end of the movable plate (9), characterized in that: Also includes: A loading mechanism (2) mounted on the upper end of the movable plate (9); A weighing feedback mechanism (3) is fixedly mounted between the movable plate (9) and the loading mechanism (2); A brake auxiliary mechanism (4) is fixedly mounted on the lower end of the movable plate (9) and arranged on the side of the annular guide rail (8); A brake force control mechanism (5) is fixedly mounted at the lower end of the loading mechanism (2) and is electrically connected to the brake auxiliary mechanism (4); A plurality of sets of lubricating oil adding mechanisms (6) are fixedly mounted outside the base (1) and are connected to the annular protrusion (11); A lubricating oil adding trigger mechanism (7) is fixedly mounted on the upper end of the base (1) and is electrically connected to the lubricating oil adding mechanism (6); A PLC controller (14) is fixedly mounted on the upper end of the base (1) and is electrically connected to the loading mechanism (2), the weighing feedback mechanism (3), the brake auxiliary mechanism (4), the brake force magnitude regulating mechanism (5), the lubricating oil adding mechanism (6) and the lubricating oil adding trigger mechanism (7).

2. The annular conveying device for conveying automobile parts according to claim 1, characterized in that: The loading mechanism (2) comprises a loading plate (21) arranged on the upper side of the moving plate (9); a plurality of bearing rods (22) are symmetrically fixedly connected to the lower end of the loading plate (21); the lower ends of the bearing rods (22) penetrate the lower end of the moving plate (9) through sleeve holes (23) provided on the surface of the moving plate (9); a plurality of bearing springs (24) sleeved outside the bearing rods (22) are fixedly connected to the upper end of the moving plate (9) and the lower end of the loading plate (21); a fixed electromagnetic block (25) in contact with the bearing rods (22) is fixedly embedded on the inner wall of the sleeve hole (23) of the moving plate (9); and the bearing rods (22) are magnetic rods.

3. The annular conveying device for conveying automobile parts according to claim 2, characterized in that: The weighing feedback mechanism (3) comprises an insulating shell (31) fixedly mounted on the outer wall of the movable plate (9), a weighing feedback resistor rod (32) arranged vertically fixedly mounted in the insulating shell (31), an insulating rod (33) fixedly connected to the lower end of the loading plate (21), the lower end of the insulating rod (33) extending through the insulating shell (31), and a weighing feedback conductive contact piece (34) in electrical contact with the weighing feedback resistor rod (32) fixedly connected to the lower end wall of the insulating rod (33).

4. The annular conveying device for conveying automobile parts according to claim 2, characterized in that: The brake auxiliary mechanism (4) comprises a support rod (41) fixedly connected to the lower end of the movable plate (9), the lower end of the support rod (41) is fixedly connected to a mounting shell (42), a side of the mounting shell (42) close to the annular guide rail (8) is movably sleeved with a plurality of push-pull rods (43), one end of the plurality of push-pull rods (43) located outside the mounting shell (42) is fixedly connected to a same brake block (44), one end of the plurality of push-pull rods (43) located inside the mounting shell (42) is fixedly connected to a same push-pull plate (45), a plurality of return springs (46) sleeved outside the push-pull rods (43) are fixedly connected to the opposite side of the push-pull plate (45) and the mounting shell (42), a thrust permanent magnet plate (47) is fixedly connected to the side of the push-pull plate (45) away from the push-pull rod (43), and a thrust electromagnetic plate (48) corresponding to the thrust permanent magnet plate (47) is fixedly mounted on the inner wall of the mounting shell (42).

5. The annular conveying device for conveying automobile parts according to claim 4, characterized in that: The brake force magnitude regulating mechanism (5) comprises a regulating shell (51) fixedly mounted on the lower end of the loading plate (21); a plurality of guide slide bars (52) arranged side by side are fixedly mounted on the upper side of the inner wall of the regulating shell (51); the plurality of guide slide bars (52) are slidably sleeved on the outside of a same sliding seat (53); a side wall of the sliding seat (53) is fixedly connected to a pushing permanent magnetic plate (54); a pushing electromagnetic plate (55) arranged corresponding to the position of the pushing permanent magnetic plate (54) is fixedly mounted on the inner wall of the regulating shell (51); a brake feedback resistor rod (56) is fixedly mounted on the upper side of the inner wall of the regulating shell (51); and a brake feedback resistor rod (56) is fixedly mounted on the upper end of the sliding seat (53) 56) a brake feedback conductive contact (57) electrically contacted with the brake feedback conductive contact (57), the brake feedback conductive contact (57) and the brake feedback resistor rod (56) are connected in series to the power supply circuit of the thrust electromagnetic plate (48), the lower side of the inner wall of the regulating shell (51) is rotatably connected with an adjusting screw (58), the outer wall of the regulating shell (51) is fixedly provided with an adjusting motor (59) for driving the adjusting screw (58) to rotate, the rod wall of the adjusting screw (58) is threadedly sleeved with an adjusting seat (510), the upper end of the adjusting seat (510) is fixedly connected with a connecting permanent magnet plate (511), and the lower end of the sliding seat (53) is fixedly connected with a connecting electromagnetic plate (512) which is arranged in contact with the connecting permanent magnet plate (511).

6. The annular conveying device for conveying automobile parts according to claim 1, characterized in that: The lubricating oil adding mechanism (6) comprises a micro pump (61) fixedly mounted outside the base (1), an oil supply pipe (62) being mounted on the micro pump (61), the annular guide rail (8) being a hollow structure, one end of the oil supply pipe (62) being fixedly connected to the annular guide rail (8), and a plurality of oil seepage holes (63) being symmetrically formed on the outer wall of the annular guide rail (8).

7. The annular conveying equipment for conveying automobile parts according to claim 1, characterized in that: The lubricating oil adding trigger mechanism (7) comprises a trigger shell (71) fixedly mounted on the upper end of the base (1), a reciprocating screw rod (72) being rotatably connected inside the trigger shell (71), a servo motor (73) for driving the reciprocating screw rod (72) to rotate being fixedly mounted on the outer wall of the trigger shell (71), a trigger plate (74) being threadedly sleeved on the rod wall of the reciprocating screw rod (72), and two trigger switches (75) being symmetrically fixedly mounted on the inner wall of the trigger shell (71).

8. The annular conveying device for conveying automobile parts according to claim 5, characterized in that: The lower end of the adjustment seat (510) is fixedly connected to a limit slider, and the bottom of the inner wall of the control shell (51) is provided with a limit sliding groove that matches and slides with the limit slider.

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