Rim conveying line automatic centering type selection mechanism and classification system

Abstract

The invention discloses a rim conveyor line automatic centering type selection mechanism and classification system, which comprises a conveyor line unit and a support frame arranged below the middle part of the conveyor line unit, and further comprises a lifting assembly fixedly arranged at the center of the support frame through a transverse plate; the rotating assembly is mounted at the top of the lifting assembly; the two sets of positioning assemblies are symmetrically arranged on the two sides of the conveying line unit; the driving assembly is mounted below the middle part of the conveying line unit and is used for synchronously driving the two groups of positioning assemblies to work; and the control cabinet is mounted on one side of the conveying line unit. According to the method, the overall efficiency of rim detection is greatly improved, meanwhile, the positioning precision is remarkably improved, detection errors caused by positioning deviation are effectively reduced, and a solid guarantee is provided for subsequent high-precision detection of rims.

Description

Technical Field

[0001] The present invention belongs to the technical field of logistics automation, and in particular relates to an automatic centering and selection mechanism and a classification system for a rim conveyor line. Background Art

[0002] The rim, commonly known as the wheel rim, is the component on the wheel's perimeter that mounts and supports the tire. Together with the spokes, it forms the wheel. The rim and spokes can be integral, permanently attached, or detachable. Rim conveyor lines are primarily used for rim and tire assembly in automotive OEMs. Due to the wide variety of rim specifications and varieties, manual rim selection and matching is required.

[0003] At present, most domestic OEMs use manual selection to match tires with rims, or manually identify different rims and sort them according to the plan when the rims are put on the line. Some OEMs use multiple production lines, that is, each line produces tires of one specification. This method will result in low production line utilization, high labor costs, and the possibility of manual selection errors. Summary of the Invention

[0004] The present invention provides an automatic centering and selection mechanism and a classification system for a rim conveyor line, which solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic centering and selection mechanism for a rim conveyor line, comprising a conveyor line unit and a support frame installed below the middle of the conveyor line unit, and further comprising:

[0006] A lifting assembly, wherein the lifting assembly is fixedly mounted at the center of the support frame via a transverse plate;

[0007] A rotating assembly, the rotating assembly being mounted on top of the lifting assembly;

[0008] Positioning components, wherein two groups of positioning components are provided and symmetrically arranged on both sides of the conveying line unit;

[0009] A drive assembly is installed below the middle of the conveyor line unit and is used to synchronously drive the two sets of positioning assemblies to work;

[0010] A control cabinet is installed on one side of the conveyor line unit.

[0011] Preferably, the lifting assembly includes a base fixedly mounted at the center of the support frame, a lifting cylinder arranged through the base, a lifting plate connected to the output rod of the lifting cylinder, and two sets of guide rods arranged through the lifting plate and the base in sequence.

[0012] Preferably, the rotating assembly includes a supporting frame mounted on the lifting plate, a rotating motor mounted inside the supporting frame, a stabilizing frame mounted on the top of the supporting frame, a coupling connected to the output shaft of the rotating motor and passing through the supporting frame and the stabilizing frame in sequence, and an alignment tray connected to the top of the coupling.

[0013] Preferably, the positioning assembly includes a gear box installed on one side of the conveyor line unit, a driving gear and a passive gear arranged inside the gear box, and two sets of clamping units respectively connected to the driving gear and the passive gear.

[0014] Preferably, the clamping unit includes a long shaft, a clamping arm fixedly connected to the top of the long shaft, and a clamping wheel rotatably connected to the clamping arm through a fixed shaft. Both sets of long shafts pass through the gear box and are fixedly connected to the center of the driving gear and the passive gear respectively.

[0015] Preferably, the drive assembly includes a cylinder base installed on one side of the conveyor line unit, a clamping cylinder hinged to the cylinder base, a connecting rod unit hinged to the output end of the clamping cylinder, and two sets of short shafts connected to the drive gear.

[0016] Preferably, the connecting rod unit includes a bent rod hingedly connected to the output end of the clamping cylinder, a straight rod hingedly connected to the bent rod, and a trapezoidal rod hingedly connected to the straight rod, and the tops of the bent rod and the trapezoidal rod are respectively connected to the bottoms of the two groups of short shafts.

[0017] A classification system for an automatic centering and selection mechanism of a rim conveyor line includes a detection sensor, a weight sensor, a nozzle detection sensor, and a PLC register, specifically comprising the following steps:

[0018] Step S10: First, the rim is positioned and transported on the conveyor line unit. When it is transported to the designated position, the control cabinet automatically starts the clamping cylinder to push the connecting rod unit to move, thereby driving the driving gear to rotate through the two sets of short shafts, that is, driving the driven gear meshed with it to rotate, even if the two sets of clamping units rotate inward at the same time, thereby clamping the rim;

[0019] Step S20: Detect the rim diameter. After contact, the detection sensor confirms the position signal and feeds it back to the PLC of the control cabinet, thereby inferring the extension length of the clamping cylinder to determine the rim diameter;

[0020] Step S30: Detect the rim weight, and the voltage analog signal of the weighing sensor is fed back to the PLC of the control cabinet, and the PLC converts the analog signal into a weight value;

[0021] Step S40: Detect the length of the rim air nozzle. After completing the above detection, start the lifting cylinder to drive the rotating motor and lift the rim off the conveyor line unit. At the same time, start the rotating motor to rotate the rim. The air nozzle detection sensor detects the position of the rim air nozzle. When the position is detected, the detection pulse signal is fed back to the PLC of the control cabinet. The PLC determines the air nozzle length based on the range of the pulse signal.

[0022] Step S50, rim sorting, through the above detection results, compare with the PLC database to determine the rim model, and store the model data in the PLC register. At the same time, the rotating motor stops rotating and the lifting cylinder retracts, so that the rim returns to the conveyor line unit and is then transported to the automatic sorting line. In the sorting process, the rim is sorted to the corresponding production line according to the rim model.

[0023] Preferably, the PLC database includes the following four rim models:

[0024] A: The diameter is set to 390-410mm, the weight is set to 13.8-14.1KG, and the nozzle length is set to 45-48mm;

[0025] B: The diameter is set to 390-410mm, the weight is set to 15.5-16.5KG, and the nozzle length is set to 45-48mm;

[0026] C: Diameter is set to 500-520mm, weight is set to 40-42KG, and nozzle length is set to 53-55mm;

[0027] D: The diameter is set to 500-520mm, the weight is set to 44-46KG, and the nozzle length is set to 50-53mm.

[0028] The beneficial effects of adopting the above technical solution are:

[0029] 1. Through the cooperation of the drive component and the positioning component, the rim can be positioned automatically and quickly, which facilitates subsequent rim inspection. This automatic and rapid rim positioning method greatly improves the overall efficiency of rim inspection. At the same time, the positioning accuracy is also significantly improved, effectively reducing the inspection error caused by positioning deviation, and providing a solid guarantee for the subsequent high-precision inspection of the rim.

[0030] Second, through the coordinated work of detection sensors, weighing sensors, and air nozzle detection sensors, after the rim is positioned, various rim parameters are quickly and accurately collected and then transmitted to the PLC in real time. After rapid and precise analysis and processing, the PLC immediately issues instructions to guide the sorting device to accurately classify the rims, greatly shortening the rim selection time and significantly improving the overall production efficiency of the rim conveyor line.

[0031] 3. This solution replaces traditional manual sorting through the coordination of structure and sensors. It can perform precise data processing and logical judgment based on preset complex algorithms and a huge database, instantly identify the model of the rim, and compare it with standard parameters to ensure that each rim meets the corresponding specification requirements. This highly automated and precise detection and sorting method effectively avoids the errors that may be caused by manual operation, ensuring that every rim entering the assembly process can be correctly matched with the tire, greatly improving the quality and safety of automotive products, and reducing after-sales costs and brand reputation losses caused by quality problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an assembly diagram of the present invention and the rim;

[0033] Figure 2 It is an assembly diagram of the present invention and the rim from another perspective;

[0034] Figure 3 This is a schematic diagram of the structure of the present invention after the conveyor line unit is hidden;

[0035] Figure 4 This is a side view of the present invention after the conveyor line unit is hidden;

[0036] Figure 5 It is an assembly drawing of the lifting assembly and the rotating assembly of the present invention;

[0037] Figure 6 It is an assembly drawing of the positioning component and the driving component of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the positioning assembly of the present invention;

[0039] Figure 8 is a schematic flow chart of the classification system of the present invention;

[0040] in:

[0041] 1. Conveyor line unit; 2. Support frame; 3. Lifting assembly; 31. Base; 32. Lifting cylinder; 33. Lifting plate; 34. Guide rod; 4. Rotating assembly; 41. Carrying frame; 42. Rotating motor; 43. Stabilizing frame; 44. Coupling; 45. Alignment pallet; 5. Positioning assembly; 51. Gear box; 52. Driving gear; 53. Passive gear; 54. Clamping unit; 541. Long shaft; 542. Clamping arm; 543. Clamping wheel; 6. Driving assembly; 61. Cylinder seat; 62. Clamping cylinder; 63. Connecting rod unit; 631. Bending rod; 632. Straight rod; 633. Trapezoidal rod; 64. Short shaft; 7. Control cabinet. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the specific implementation methods of the present invention through the description of embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and to facilitate its implementation. Example 1:

[0043] Specifically, if Figures 1 to 7 As shown, a rim conveyor line automatic centering and selection mechanism includes a conveyor line unit 1 and a support frame 2 installed below the middle of the conveyor line unit 1, and also includes:

[0044] A lifting assembly 3, wherein the lifting assembly 3 is fixedly mounted at the center of the support frame 2 via a transverse plate;

[0045] A rotating assembly 4, wherein the rotating assembly 4 is mounted on the top of the lifting assembly 3;

[0046] Positioning components 5, which are provided in two groups and are symmetrically arranged on both sides of the conveying line unit 1;

[0047] A drive assembly 6 is installed below the middle of the conveyor line unit 1 and is used to synchronously drive the two sets of positioning assemblies 5 to work;

[0048] The control cabinet 7 is installed on one side of the conveyor line unit 1 .

[0049] It should be noted that when the rim is transported on the conveyor line unit 1 and reaches the designated position, the control cabinet 7 starts the driving component 6, which in turn drives the positioning component 5 to rotate inward at the same time to clamp the rim, thereby completing the clamping and positioning work. Then, the inspection is carried out. When it is necessary to detect the position of the rim air nozzle, the lifting component 3 and the rotating component 4 are started to drive the rim to lift and rotate, and the rim air nozzle position is detected by the air nozzle detection sensor.

[0050] The lifting assembly 3 includes a base 31 fixedly installed at the center of the support frame 2, a lifting cylinder 32 arranged through the base 31, a lifting plate 33 connected to the output rod of the lifting cylinder 32, and two groups of guide rods 34 arranged through the lifting plate 33 and the base 31 in sequence.

[0051] It should be noted that the guide rod 34 can ensure the stability and accuracy of the lifting plate 33 during the lifting process. When the lifting cylinder 32 is working, the lifting plate 33 connected to the output rod of the lifting cylinder 32 will rise accordingly. During this process, the two sets of guide rods 34 will also rise with the lifting plate 33, thereby ensuring the stability and accuracy of the lifting plate 33 during the lifting process.

[0052] The rotating assembly 4 includes a supporting frame 41 installed on the lifting plate 33, a rotating motor 42 installed inside the supporting frame 41, a stabilizing frame 43 installed on the top of the supporting frame 41, a coupling 44 connected to the output shaft of the rotating motor 42 and passing through the supporting frame 41 and the stabilizing frame 43 in sequence, and an alignment tray 45 connected to the top of the coupling 44.

[0053] It should be noted that when the lifting cylinder 32 is working, the rotating motor 42 is also working, driving the alignment tray 45 to rotate through the coupling 44, that is, driving the rim to rotate, so as to detect parameters such as the rim air nozzle length.

[0054] The positioning assembly 5 includes a gear box 51 installed on one side of the conveyor line unit 1, a driving gear 52 and a driven gear 53 arranged inside the gear box 51, and two sets of clamping units 54 respectively connected to the driving gear 52 and the driven gear 53.

[0055] The clamping unit 54 includes a long shaft 541, a clamping arm 542 fixedly connected to the top of the long shaft 541, and a clamping wheel 543 rotatably connected to the clamping arm 542 through a fixed shaft. Both sets of the long shafts 541 pass through the gear box 51 and are fixedly connected to the center of the driving gear 52 and the passive gear 53 respectively.

[0056] It should be noted that the rotation of the driving gear 52 and the driven gear 53 enables the synchronous action of the clamping unit 54 to clamp the rim.

[0057] The driving assembly 6 includes a cylinder base 61 installed on one side of the conveyor line unit 1, a clamping cylinder 62 hingedly connected to the cylinder base 61, a connecting rod unit 63 hingedly connected to the output end of the clamping cylinder 62, and two sets of short shafts 64 connected to the driving gear 52.

[0058] The connecting rod unit 63 includes a bent rod 631 hingedly connected to the output end of the clamping cylinder 62, a straight rod 632 hingedly connected to the bent rod 631, and a trapezoidal rod 633 hingedly connected to the straight rod 632. The tops of the bent rod 631 and the trapezoidal rod 633 are respectively connected to the bottoms of the two groups of short shafts 64.

[0059] It should be noted that the driving assembly 6 drives the driving gear 52 to rotate through the connecting rod unit 63 through the action of the clamping cylinder 62, thereby realizing the clamping action of the positioning assembly 5. Example 2:

[0060] Specifically, if Figure 8 As shown, a classification system for an automatic centering and selection mechanism of a rim conveyor line includes a detection sensor, a weight sensor, a nozzle detection sensor, and a PLC register, specifically including the following steps:

[0061] Step S10: First, the rim is positioned and transported on the conveyor unit 1. When the rim is transported to the designated position, the control cabinet 7 automatically starts the clamping cylinder 62, pushing the connecting rod unit 63 to move, thereby driving the driving gear 52 to rotate through the two sets of short shafts 64, that is, driving the driven gear 53 meshing therewith to rotate, even if the two sets of clamping units 54 rotate inward at the same time, thereby clamping the rim;

[0062] Step S20, detecting the rim diameter. After contact, the detection sensor confirms the position signal and feeds it back to the PLC of the control cabinet 7, thereby inferring the extension length of the clamping cylinder 62 to determine the rim diameter;

[0063] Step S30, detecting the rim weight, and feeding back the voltage analog signal of the weighing sensor to the PLC of the control cabinet 7, which converts the analog signal into a weight value;

[0064] Step S40, detecting the length of the rim air nozzle. After completing the above detection, the lifting cylinder 32 is started to drive the rotating motor 42 and the rim to be lifted off the conveyor line unit 1. At the same time, the rotating motor 42 is started to drive the rim to rotate. The air nozzle detection sensor detects the position of the rim air nozzle. When the position is detected, the detection pulse signal is fed back to the PLC of the control cabinet 7. The PLC determines the air nozzle length according to the range of the pulse signal.

[0065] Step S50, rim sorting, through the above-mentioned detection results, compare with the PLC database to determine the rim model, and store the model data in the PLC register. At the same time, the rotating motor 42 stops rotating and the lifting cylinder 32 retracts, so that the rim returns to the conveyor line unit 1 and is then transported to the automatic sorting line. In the sorting process, the rim is sorted to the corresponding production line according to the rim model.

[0066] The PLC database includes the following four rim models:

[0067] A: The diameter is set to 390-410mm, the weight is set to 13.8-14.1KG, and the nozzle length is set to 45-48mm;

[0068] B: The diameter is set to 390-410mm, the weight is set to 15.5-16.5KG, and the nozzle length is set to 45-48mm;

[0069] C: Diameter is set to 500-520mm, weight is set to 40-42KG, and nozzle length is set to 53-55mm;

[0070] D: The diameter is set to 500-520mm, the weight is set to 44-46KG, and the nozzle length is set to 50-53mm.

[0071] Specifically, after the rim is clamped and positioned, the detection sensor starts working immediately, obtains the position signal after the rim contacts the clamping unit 54, and quickly feeds back the signal to the PLC of the control cabinet 7; the PLC uses a preset algorithm, combined with the position signal fed back by the detection sensor and the relevant parameters of the clamping cylinder 62, to infer the extension length of the clamping cylinder 62, thereby accurately determining the rim diameter; at the same time, the weighing sensor continuously detects the rim weight and transmits the detected voltage analog signal to the PLC of the control cabinet 7; the analog-to-digital conversion module inside the PLC converts the analog signal into a digital weight value, which serves as one of the important bases for determining the rim model; after completing the diameter and weight detection, the lifting cylinder 32 drives the rotating motor 42 and the rim to lift away from the conveyor line unit 1, and the rotating motor 42 starts to drive the rim to rotate; the air nozzle The detection sensor monitors the position of the air nozzle in real time during the rotation of the rim; when the air nozzle is detected, the air nozzle detection sensor generates a pulse signal and feeds it back to the PLC of the control cabinet 7; the PLC accurately determines the length of the air nozzle based on the range of the pulse signal and the pre-set algorithm; finally, the PLC compares the detected rim diameter, weight and air nozzle length with the four rim models A, B, C, and D in the PLC database one by one; through precise data analysis and logical judgment, the PLC determines the rim model and stores the model data in the PLC register; then, the rotating motor 42 stops rotating, the lifting cylinder 32 retracts, and the rim returns to the conveyor line unit 1; the conveyor line unit 1 transports the rim to the automatic sorting line. In the sorting process, the system accurately sorts the rim to the corresponding production line according to the rim model, completing the entire rim sorting process.

[0072] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A rim conveyor line automatic centering and selection mechanism, comprising a conveyor line unit (1) and a support frame (2) installed below the middle of the conveyor line unit (1), characterized in that: Also includes: A lifting assembly (3), wherein the lifting assembly (3) is fixedly mounted at the center of the support frame (2) via a transverse plate; A rotating assembly (4), the rotating assembly (4) being mounted on the top of the lifting assembly (3); Positioning components (5), wherein two groups of positioning components (5) are provided and symmetrically arranged on both sides of the conveying line unit (1); A drive assembly (6), the drive assembly (6) being installed below the middle of the conveyor line unit (1) and being used to synchronously drive the two sets of positioning assemblies (5) to work; A control cabinet (7), wherein the control cabinet (7) is installed on one side of the conveyor line unit (1).

2. The automatic centering and selection mechanism for a rim conveyor line according to claim 1, characterized in that: The lifting assembly (3) includes a base (31) fixedly mounted at the center of the support frame (2), a lifting cylinder (32) provided through the base (31), a lifting plate (33) connected to an output rod of the lifting cylinder (32), and two sets of guide rods (34) provided through the lifting plate (33) and the base (31) in sequence.

3. The automatic centering and selection mechanism for a rim conveyor line according to claim 2, characterized in that: The rotating assembly (4) includes a supporting frame (41) mounted on the lifting plate (33), a rotating motor (42) mounted inside the supporting frame (41), a stabilizing frame (43) mounted on the top of the supporting frame (41), a coupling (44) connected to the output shaft of the rotating motor (42) and passing through the supporting frame (41) and the stabilizing frame (43) in sequence, and an alignment tray (45) connected to the top of the coupling (44).

4. The automatic centering and selection mechanism for a rim conveyor line according to claim 1, characterized in that: The positioning assembly (5) comprises a gear box (51) mounted on one side of the conveyor line unit (1), a driving gear (52) and a driven gear (53) disposed inside the gear box (51), and two sets of clamping units (54) respectively connected to the driving gear (52) and the driven gear (53).

5. The automatic centering and selection mechanism for a rim conveyor line according to claim 4, characterized in that: The clamping unit (54) comprises a long shaft (541), a clamping arm (542) fixedly connected to the top of the long shaft (541), and a clamping wheel (543) rotatably connected to the clamping arm (542) via a fixed shaft. Both sets of the long shafts (541) pass through the gear box (51) and are fixedly connected to the center of the driving gear (52) and the driven gear (53), respectively.

6. The automatic centering and selection mechanism for a rim conveyor line according to claim 4, characterized in that: The drive assembly (6) comprises a cylinder seat (61) mounted on one side of the conveyor line unit (1), a clamping cylinder (62) hingedly connected to the cylinder seat (61), a connecting rod unit (63) hingedly connected to the output end of the clamping cylinder (62), and two sets of short shafts (64) connected to the drive gear (52).

7. The automatic centering and selection mechanism for a rim conveyor line according to claim 6, characterized in that: The connecting rod unit (63) comprises a bent rod (631) hingedly connected to the output end of the clamping cylinder (62), a straight rod (632) hingedly connected to the bent rod (631), and a trapezoidal rod (633) hingedly connected to the straight rod (632). The tops of the bent rod (631) and the trapezoidal rod (633) are respectively connected to the bottoms of the two groups of short shafts (64).

8. A classification system for an automatic centering and selection mechanism for a rim conveyor line according to any one of claims 1 to 7, characterized in that: It includes detection sensors, weight sensors, air nozzle detection sensors and PLC registers, and specifically includes the following steps: Step S10, first, the rim is positioned and transported on the conveyor line unit (1). When the rim is transported to the designated position, the control cabinet (7) automatically starts the clamping cylinder (62) to push the connecting rod unit (63) to move, thereby driving the driving gear (52) to rotate through the two sets of short shafts (64), that is, driving the driven gear (53) meshed with it to rotate, even if the two sets of clamping units (54) rotate inward at the same time, thereby clamping the rim; Step S20, detecting the rim diameter, after contact, the detection sensor confirms the position signal and feeds it back to the PLC of the control cabinet (7), thereby inferring the extension length of the clamping cylinder (62) to determine the rim diameter; Step S30, detecting the rim weight, and feeding back the voltage analog signal of the weighing sensor to the PLC of the control cabinet (7), and the PLC converts the analog signal into a weight value; Step S40, detecting the length of the rim air nozzle. After completing the above detection, the lifting cylinder (32) is started to drive the rotating motor (42) and the rim to be lifted and separated from the conveyor line unit (1). At the same time, the rotating motor (42) is started to drive the rim to rotate. The position of the rim air nozzle is detected by the air nozzle detection sensor. When detected, the pulse signal generated by the detection is fed back to the PLC of the control cabinet (7). The PLC determines the air nozzle length according to the range of the pulse signal. Step S50, rim sorting, by comparing the above-mentioned detection results with the PLC database to determine the rim model, and store the model data in the PLC register, while the rotating motor (42) stops rotating and the lifting cylinder (32) retracts, so that the rim returns to the conveyor line unit (1) and is then transported to the automatic sorting line. In the sorting process, the rim is sorted to the corresponding production line according to the rim model.

9. A classification system for automatic centering and selection mechanisms for rim conveyor lines according to claim 8, characterized in that: The PLC database includes the following four rim models: A: The diameter is set to 390-410mm, the weight is set to 13.8-14.1KG, and the nozzle length is set to 45-48mm; B: The diameter is set to 390-410mm, the weight is set to 15.5-16.5KG, and the nozzle length is set to 45-48mm; C: Diameter is set to 500-520mm, weight is set to 40-42KG, and nozzle length is set to 53-55mm; D: The diameter is set to 500-520mm, the weight is set to 44-46KG, and the nozzle length is set to 50-53mm.

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