Production circulation method and production line after wheel shaft assembly

Abstract

The invention provides a production circulation method and a production line after wheel axle assembly, and relates to the technical field of wheel axle production. The method comprises the steps that a wheel shaft is shifted in a paint brushing area, so that the wheel shaft rolls to the feeding end of a conveying line, and feeding of the conveying line is achieved; the wheel shaft is conveyed to the discharging end from the feeding end of the conveying line, and the wheel shaft passes through a drying area in the conveying process; and the wheel shaft is shifted at the discharging end of the conveying line, so that the wheel shaft rolls to an inspection area, and discharging of the conveying line is achieved. According to the method, a rolling transmission technology system is innovatively adopted, and the whole-process hoisting-free operation from a paint brushing area to an inspection area is achieved; the traditional scheme that the axles are hoisted and unloaded one by one by means of hoisting equipment such as a crown block is abandoned, feeding and discharging of a conveying line are achieved only by means of rolling of the axles, manpower and material resource cost is remarkably saved, the circulation efficiency of the axles is greatly improved, and contact pollution of mechanical clamping jaws to axle paint is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of axle production, and more particularly, to a production transfer method and production line after axle assembly. Background Art

[0002] Axles are important components of railway freight cars and key components of the running gear, playing the role of supporting the bogie and ensuring the safe operation of the vehicle. An axle is assembled by two wheels on the left and right and an axle shaft. After the axle is assembled on the production line, it usually needs to go through processes such as painting, drying, and inspection before it can be stored in the warehouse.

[0003] Currently, in workshop production, most axles need to be lifted by an overhead crane to achieve transfer between the painting, drying, and inspection stations after assembly. However, the overhead crane can only complete the lifting and unloading of one axle each time and requires the cooperation of workers, resulting in a large amount of manpower consumption and low transfer efficiency for axles after assembly. Summary of the Invention

[0004] The problem solved by the present invention is how to improve the production transfer efficiency of axles after assembly.

[0005] To solve the above problems, the present invention provides a production transfer method and production line for axles after assembly.

[0006] In a first aspect, the present invention provides a production transfer method for axles after assembly, including the following steps:

[0007] In the paint brushing area, the axle is toggled to make the axle roll to the loading end of the conveyor line, realizing the loading of the conveyor line;

[0008] The axle is transported from the loading end of the conveyor line to the unloading end, and the axle passes through the drying area during the transportation process;

[0009] At the unloading end of the conveyor line, the axle is toggled to make the axle roll to the inspection area, realizing the unloading of the conveyor line.

[0010] Optionally, the conveyor line transports the axle in the Y direction, and the axis of the axle remains parallel to the Y direction during transportation.

[0011] Optionally, the axle rolls from the paint brushing area to the loading end of the conveyor line in the X direction, and the axle rolls from the unloading end of the conveyor line to the inspection area in the X direction; wherein, both the X direction and the Y direction are horizontal directions and are perpendicular to each other.

[0012] Optionally, it further includes the following step: the axle is transferred from the inspection area to the storage area through a lifting operation.

[0013] Second aspect, the present invention further provides a production line after the wheel axle assembly based on the above production flow method after the wheel axle assembly, including a conveyor line, on one side of the feeding end of the conveyor line, there is a first track and a paint brushing area, in the paint brushing area, there is a first dialing wheel mechanism, on one side of the discharging end of the conveyor line, there is a second track and an inspection area, and at the discharging end of the conveyor line, there is a second dialing wheel mechanism;

[0014] The first dialing wheel mechanism is used to dial the wheel axle to roll out from the paint brushing area and roll along the first track to the feeding end, so as to realize the feeding of the conveyor line; the second dialing wheel mechanism is used to dial the wheel axle to roll out from the discharging end and roll along the second track to the inspection area, so as to realize the discharging of the conveyor line;

[0015] It further includes a drying area, and the conveying route of the conveyor line passes through the drying area; the drying area is used to dry the wheel axles transported on the conveyor line.

[0016] Optionally, the conveyor line is laid along the Y direction, on one side of the feeding end along the X direction, there is the first track and the paint brushing area, on one side of the discharging end along the X direction, there is the second track and the inspection area, and both the first track and the second track are laid along the X direction; wherein, both the X direction and the Y direction are horizontal directions and are perpendicular to each other.

[0017] Optionally, the conveyor line includes an underground plate chain conveyor, in the middle of the bearing plate of the underground plate chain conveyor, there is a groove, the groove runs through along the Y direction, and the groove is an arc-shaped groove adapted to the wheels of the wheel axle.

[0018] Optionally, in the drying area, there is a drying box, the drying box covers the ground and extends from the tail of the feeding end of the conveyor line to the tail of the discharging end.

[0019] Optionally, in the inspection area, there is a to-be-inspected storage area, an inspection station and a pushing mechanism, the second track passes through the to-be-inspected storage area from the discharging end of the conveyor line and extends to the inspection station, the to-be-inspected storage area is used to store the wheel axles rolled out from the discharging end of the conveyor line, and the pushing mechanism is used to push the wheel axles to roll from the to-be-inspected storage area along the second track to the inspection station.

[0020] Optionally, the production line after the wheel axle assembly further includes a storage area and a gantry robot, the storage area is arranged on the side of the inspection area away from the conveyor line, and the gantry robot is used to lift the wheel axles in the inspection area to the storage area for storage.

[0021] The beneficial effects of the production flow method and production line after the wheel axle assembly of the present invention are:

[0022] First, in the paint application area where the axle has completed the paint application operation, by utilizing the cylindrical rolling characteristic of the axle, it is precisely rolled to the feeding end of the conveyor line that is seamlessly connected to the discharge port of the paint application area, completing the transfer from the painting station in the paint application area to the feeding of the conveyor line; then, the conveyor line transports the axle through the drying area; finally, after the axle has completed the drying operation on the conveyor line, it is transported to the discharging end, and again by utilizing the cylindrical rolling characteristic of the axle, it is precisely rolled to the inspection area to await subsequent inspection work.

[0023] In summary, for the production transfer method and production line after the assembly of the axle, the innovative rolling transmission technology system is adopted to achieve a full-process non-hoisting operation from the paint application area to the inspection area; the traditional solution of using hoisting equipment such as overhead cranes to individually lift and unload the axles is abandoned, and only relying on the rolling of the axle to achieve the loading and unloading of the conveyor line not only significantly saves labor and material costs, but also greatly improves the transfer efficiency of the axle and effectively avoids the contact pollution of the axle paint by mechanical grippers. Description of the Drawings

[0024] Figure 1 Schematic flow chart of the production transfer method after the assembly of the axle according to the embodiment of the present invention.

[0025] Figure 2 Top view of the production line after the assembly of the axle according to the embodiment of the present invention.

[0026] Figure 3 Partial schematic view of the production line after the assembly of the axle according to the embodiment of the present invention.

[0027] Figure 4 Schematic structural view of the second dialing mechanism of the production line after the assembly of the axle according to the embodiment of the present invention.

[0028] Figure 5 Schematic structural view of the bearing plate of the production line after the assembly of the axle according to the embodiment of the present invention.

[0029] Figure 6 Schematic view after the pushing mechanism of the production line after the assembly of the axle according to the embodiment of the present invention is translated to the conveyor line.

[0030] Figure 7 Schematic view when the pushing mechanism of the production line after the assembly of the axle according to the embodiment of the present invention has completed pushing.

[0031] Description of the reference numerals:

[0032] 1. Conveyor line; 11. Carrier plate; 12. Groove; 13. Stop bar; 2. First track; 3. Paint brushing area; 4. First dialing mechanism; 5. Second track; 6. Inspection area; 61. Area for storing items to be inspected; 62. Inspection station; 63. Pushing mechanism; 631. Bracket; 632. Telescopic push head; 7. Second dialing mechanism; 71. Base; 72. Hydraulic cylinder; 73. Push plate; 8. Drying area; 9. Wheel axle; 101. Storage area; 102. Truss manipulator. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0034] The term "including" and its variants used herein are open-ended, that is, "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules, or units, and are not used to limit the order or mutual dependence relationship of the functions performed by these devices, modules, or units.

[0035] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0036] As Figure 1 and Figure 2 shown, a production flow method after assembling a wheel axle provided by an embodiment of the present invention includes the following steps S10 - S30.

[0037] Step S10: Dial the wheel axle 9 in the paint brushing area 3 to make the wheel axle 9 roll to the loading end of the conveyor line 1, thereby realizing the loading of the conveyor line 1.

[0038] Specifically, in the paint application area 3 where the axle 9 completes the paint application operation, by utilizing the cylindrical rolling characteristic of the axle 9, a controllable thrust can be applied to the axle 9 through a wheel dialing mechanism (such as a dial rod, pneumatic push claw), etc., so that it rolls along a preset slope or guide rail in a rolling manner and precisely rolls to the loading end of the conveyor line 1 that is seamlessly connected to the discharge port of the paint application area 3, completing the transfer from the painting station in the paint application area 3 to the loading of the conveyor line 1.

[0039] Step S20: Transport the axle 9 from the loading end of the conveyor line 1 to the unloading end, and during the transportation process, the axle 9 passes through the drying area 8.

[0040] Specifically, the drying area 8 is arranged on the conveying path of the conveyor line 1, that is, the conveyor line 1 and the drying area 8 are integrally arranged to eliminate the transfer waste of setting the drying area 8 independently. The drying area 8 is equipped with drying equipment inside, such as an efficient hot air circulation system, a precise temperature control system, etc., which can perform the paint surface drying treatment on the axle 9 passing through this area, complete the drying operation, and ensure the paint surface quality of the axle 9.

[0041] Step S30: Dial the axle 9 at the unloading end of the conveyor line 1 to make the axle 9 roll to the inspection area 6, realizing the unloading of the conveyor line 1.

[0042] Specifically, after the axle 9 completes the drying operation on the conveyor line 1, it is transported to the unloading end. Similarly, by utilizing the cylindrical rolling characteristic of the axle 9, a controllable thrust can be applied to the axle 9 through a wheel dialing mechanism (such as a dial rod, pneumatic push claw), etc., so that it rolls along a preset slope or guide rail in a rolling manner and precisely rolls to the inspection area 6, waiting for subsequent inspection work.

[0043] In summary, the innovative production transfer method after the assembly of the axle adopts a rolling transmission technology system to achieve a full-process non-hoisting operation from the paint application area 3 to the inspection area 6; it abandons the traditional plan of using hoisting equipment such as overhead cranes to individually lift and unload the axle 9, and only relies on the rolling of the axle 9 to realize the loading and unloading of the conveyor line 1, which not only significantly saves labor and material costs, but also greatly improves the transfer efficiency of the axle 9 and effectively avoids the contact pollution of the axle 9 paint by mechanical claws.

[0044] In addition, this rolling method is applicable to axles 9 of all sizes. Specifically, by adjusting the magnitude of the force for dialing the axle 9 on the equipment, etc., the same paint application area 3, conveyor line 1, and inspection area 6 can be applicable to axles 9 of multiple sizes, greatly improving the versatility of the equipment. In addition, this method also couples and integrates the conveyor line 1 and the drying area 8, that is, the drying operation is completed during the process of transporting the axle 9 on the conveyor line 1, so that the transfer path of the axle 9 is short and the efficiency is high during the production process after assembly.

[0045] Optionally, the conveyor line 1 transports the axle 9 along the Y direction, and when transporting, the axis of the axle 9 is parallel to the Y direction.

[0046] In this optional embodiment, the conveying direction of the conveyor line 1 is designed to be parallel to the axis of the wheel axle 9 during transportation, which facilitates loading and unloading of the conveyor line 1 by rolling. In addition, during transportation, the wheel axle 9 is subjected to the friction force of the conveyor line 1 along the axial direction of the wheel axle 9, so that the wheel axle 9 shakes less during transportation, thereby ensuring transportation stability.

[0047] Optionally, the axle 9 rolls along the X direction from the paint painting area 3 to the loading end of the conveyor line 1, and the axle 9 rolls along the X direction from the unloading end of the conveyor line 1 to the inspection area 6; wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other.

[0048] In this optional embodiment, the conveyor line 1 is laid along the Y direction to form the main transport channel of the axle 9, the axle 9 rolls along the X direction from the paint painting area 3 to the loading end of the conveyor line 1, and the axle 9 rolls along the X direction from the unloading end of the conveyor line 1 to the inspection area 6, thereby forming an orthogonal three-segment flow path of "XYX".

[0049] This orthogonal path makes it relatively simple and direct for the axle 9 to roll and flow between the paint painting area 3, the drying area 8 and the inspection area 6. A smooth transition can be achieved at the intersection of the X and Y directions through a simple ramp or guide device, without the need for a complex steering device or a long steering buffer area. The flow path is small and efficient, and the production line layout after the overall axle assembly is compact, thereby improving the space utilization rate of the workshop.

[0050] Optionally, the production flow method after the wheel axle is assembled further includes step S40: the wheel axle 9 is transferred from the inspection area 6 to the storage area 101 by a lifting operation.

[0051] Usually, the storage area 101 is equipped with a modular positioning tooling, which constructs a three-dimensional stable structure through a V-shaped support seat and a limit block. Therefore, the qualified axle 9 in the inspection area 6 is lifted and placed on the modular positioning tooling in the storage area 101 to realize the circulation between the inspection area 6 and the storage area 101.

[0052] It should be noted that the above step numbers are for the convenience of describing the present embodiment and do not constitute a limitation on the order of implementing the steps of the present invention.

[0053] like Figure 3As shown in the figure, a production line after assembling the axle based on the above-mentioned production transfer method after axle assembly provided by an embodiment of the present invention includes a conveyor line 1. On one side of the feeding end of the conveyor line 1, there are a first track 2 and a paint brushing area 3. Inside the paint brushing area 3, there is a first dialing mechanism 4. On one side of the discharging end of the conveyor line 1, there are a second track 5 and an inspection area 6. At the discharging end of the conveyor line 1, there is a second dialing mechanism 7. The first dialing mechanism 4 is used to dial the axle 9 to roll out from the paint brushing area 3 and roll along the first track 2 to the feeding end, so as to realize the feeding of the conveyor line 1. The second dialing mechanism 7 is used to dial the axle 9 to roll out from the discharging end and roll along the second track 5 to the inspection area 6, so as to realize the discharging of the conveyor line 1. It further includes a drying area 8, and the conveying route of the conveyor line 1 passes through the drying area 8. The drying area 8 is used to dry the axles 9 transported on the conveyor line 1.

[0054] Specifically, the production line after assembling the axle is composed of components such as a conveyor line 1, a first track 2, a paint brushing area 3, a second track 5, an inspection area 6, a first dialing mechanism 4, a second dialing mechanism 7, and a drying area 8. Each component operates in coordination to achieve the efficient transfer of the axle 9 between the paint brushing area 3, the drying area 8, and the paint brushing area 3 after the assembly of the axle 9 is completed.

[0055] As the main channel for transporting the axle 9, the feeding end of the conveyor line 1 seamlessly connects to the discharging port of the paint brushing area 3, and the discharging end is directly connected to the inspection area 6, undertaking the important task of stably transporting the axle 9 from the paint brushing area 3 to the inspection area 6.

[0056] The paint brushing area 3 is arranged at the feeding end of the conveyor line 1 and is the area where the axle 9 is sprayed. Inside, there is a first dialing mechanism 4, which is used to dial out the sprayed axle 9 from the paint brushing area 3 and make it roll along the first track 2 to the feeding end of the conveyor line 1, so as to realize the feeding of the axle 9 to the conveyor line 1.

[0057] The drying area 8 is arranged on the conveying path of the conveyor line 1. Inside the drying area 8, there are drying equipment, such as an efficient hot air circulation system, an accurate temperature control system, etc., which can perform the drying treatment on the paint surface of the axles 9 passing through this area to ensure the paint surface quality of the axles 9.

[0058] The specific working process is as follows: the axle 9 that has completed the spraying operation in the paint painting area 3 is driven by the first dial mechanism 4 to roll out of the paint painting area 3, and rolls along the first track 2 to the loading end of the conveyor line 1 to realize automatic loading. Subsequently, the axle 9 is transported to the loading end by the conveyor line 1. During the transportation process, the paint surface of the axle 9 is dried in the drying area 8. Thereafter, when the axle 9 reaches the loading end of the conveyor line 1, the second dial mechanism 7 drives it to roll off the conveyor line 1, and the axle 9 then rolls along the second track 5 to the inspection area 6 to wait for inspection. In addition, it should be noted that the conveyor line 1 adopts an intermittent conveying mode, and when the axle 9 rolls to the loading end of the conveyor line 1 or rolls out from the loading end, the conveyor line 1 remains stationary.

[0059] In short, the production line structure, through scientific and reasonable layout and equipment configuration, makes full use of the rolling characteristics of the axle 9 itself after the assembly of the axle 9, and realizes the automatic and efficient circulation of the axle 9 between the paint painting area 3, the drying area 8 and the inspection area 6 through the "first track 2-conveyor line 1-second track 5", as well as the first dial mechanism 4 and the second dial mechanism 7. During the entire circulation process, there is no need to use overhead cranes and other lifting equipment to lift and unload the axles 9 one by one, which not only significantly saves manpower and material costs, but also greatly improves the circulation efficiency of the axle 9. At the same time, each area has a clear division of labor and collaborative work, which ensures the painting quality, drying effect and inspection accuracy of the axle 9, which is conducive to improving the automation level, production efficiency and product quality of the entire production process, and brings significant economic benefits and competitive advantages to axle manufacturing companies.

[0060] Optionally, the conveyor line 1 is laid along the Y direction, a first track 2 and a paint painting area 3 are provided on one side of the loading end along the X direction, a second track 5 and an inspection area 6 are provided on one side of the discharging end along the X direction, and the first track 2 and the second track 5 are both laid along the X direction; wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other.

[0061] In this optional embodiment, the conveyor line 1 is arranged to extend along the Y direction, that is, the axle 9 is transported along the Y direction; the first track 2 and the second track 5 are both arranged to extend along the X direction, and are respectively arranged at the loading end and the unloading end of the conveyor line 1, forming a flow path of "X-direction track-Y-direction conveyor line-X-direction track", that is, forming an orthogonal three-segment flow path of "XYX", which, on the one hand, makes the production line layout after the axle 9 is assembled reasonable, occupies less space, and improves the space utilization rate of the workshop; on the other hand, the axle 9 can smoothly roll into / out of the conveyor line 1 through the track with the minimum path. The Y direction and the X direction are both horizontal straight lines, that is, the conveyor line 1, the first track 2 and the second track 5 are all laid on the horizontal ground.

[0062] In addition, if Figure 1 As shown, the paint application area 3 and the inspection area 6 can be arranged on the same side of the conveyor line 1 to further optimize the production line layout.

[0063] Optionally, a plurality of first tracks 2 are arranged at intervals along the Y direction.

[0064] In this optional embodiment, by arranging a plurality of first tracks 2 at intervals along the Y direction, a multi-station feeding system matching the conveyor line 1 is constructed. The docking areas of each track and the conveyor line 1 form independent feeding nodes, realizing multi-channel parallel feeding. Each feeding point can dynamically allocate tasks according to the real-time load of the conveyor line 1, effectively shortening the material feeding interval period, thereby significantly improving the overall operation efficiency of the conveying system. As Figure 3 shown, two first tracks 2 are provided.

[0065] Optionally, a plurality of second tracks 5 are arranged at intervals along the Y direction.

[0066] In this optional embodiment, by configuring multiple groups of second tracks 5 along the Y direction at the discharging end, a multi-station loading and unloading system matching the conveyor line 1 is constructed. The docking areas of each second track 5 and the conveyor line 1 form independent discharging nodes. When the axle 9 reaches the discharging end, the discharging tasks can be assigned to different second tracks 5 for execution, converting the original serial discharging process into a spatially isolated parallel operation, which can prevent the axle 9 from piling up in the inspection area 6. As Figure 3 shown, three second tracks 5 are provided.

[0067] Optionally, when the axle 9 rotates on the conveyor line 1, the first track 2 and the second track 5, its axis is parallel to the Y direction.

[0068] In this optional embodiment, the conveyor line 1 extends along the Y direction, that is, it transports the axle 9 along the Y direction; the first track 2 and the second track 5 both extend along the X direction, keeping the axis of the axle 9 parallel to the Y direction when it rotates on the conveyor line 1, the first track 2 and the second track 5, and there is no need to rotate and adjust the attitude of the axle 9 during the rotation process, improving the rotation efficiency.

[0069] Optionally, the conveyor line 1 includes an underground plate chain conveyor. A groove 12 is provided in the middle of the bearing plate 11 of the underground plate chain conveyor. The groove 12 runs through along the Y direction, and the groove 12 is an arc groove adapted to the wheels of the axle 9.

[0070] In this optional embodiment, a groove 12 with an arc-shaped cross section is provided in the middle of the bearing plate 11 of the underground plate chain conveyor, and its arc radius is precisely matched with the wheel radius of the axle 9. Assuming the wheel radius of the axle 9 is R, the arc radius of the groove 12 is designed as R±0.5mm (fine-tuned according to the actual processing accuracy and the running stability requirements of the axle). This matching design can ensure that the wheels remain stable in the groove 12, so that there is no need to set a clamping mechanism on the conveyor line 1, and the stability of the axle 9 during the conveying process can be ensured.

[0071] The underground plate chain conveyor is a common conveying device embedded underground. Its main structural components include the load-bearing plate 11, i.e., the chain plate, the chain, the sprocket, etc. Its working principle is to use the reciprocating chain as the traction power, with the chain plate, i.e., the load-bearing plate 11, as the conveying carrier, and drive the goods or materials on the chain plate through the movement of the chain. Due to the underground design, this conveyor can save ground space and improve the utilization rate of the production site. At the same time, according to different technological processes, the underground plate chain conveyor can be designed into various forms such as straight type and turning type to meet different conveying requirements.

[0072] Optionally, the first track 2 and the second track 5 are laid on the ground to match the underground plate chain conveyor, and both tracks are horizontal or approximately horizontal. The first track 2 and the second track 5 support the treads of the wheels of the axle 9, and both are provided with channels for the wheel rims of the wheels of the axle 9 to roll; the wheel rims of the wheels of the axle 9 are supported on the load-bearing plate 11 of the conveying line 1. Therefore, when laying, pay attention to making the height of the conveying surface of the conveying line 1 lower than the supporting surface height of the first track 2 and the second track 5 to ensure the smooth rolling and rotation of the axle 9.

[0073] Optionally, a drying box is arranged in the drying area 8. The drying box covers the ground and extends from the tail of the feeding end of the conveying line 1 to the tail of the discharging end.

[0074] In this optional embodiment, the drying box adopts a ground covering structure to match the underground plate chain conveyor, and the drying box extends from the tail of the feeding end of the conveying line 1 to the tail of the discharging end, forming an "integrated conveying-drying" thermal engineering channel, and fully utilizing the conveying path of the conveying line 1 for drying operations.

[0075] Optionally, a to-be-inspected storage area 61, an inspection station 62 and a pushing mechanism 63 are arranged in the inspection area 6. The second track 5 passes through the to-be-inspected storage area 61 from the discharging end of the conveying line 1 and extends to the inspection station 62. The to-be-inspected storage area 61 is used to store the axles 9 rolled out from the discharging end of the conveying line 1, and the pushing mechanism 63 is used to push the axles 9 to roll from the to-be-inspected storage area 61 along the second track 5 to the inspection station 62.

[0076] In this optional embodiment, the to-be-inspected storage area 61 is a buffering area at the discharging end of the conveying line 1, realizing the transfer between the conveying line 1 and the inspection station 62. The pushing mechanism 63 pushes the axles 9 from the to-be-inspected storage area 61 to roll to the inspection station 62 for inspection.

[0077] Optionally, the pushing mechanism 63 adopts a reciprocating conveying mechanism. The reciprocating conveying mechanism includes two brackets 631. The brackets 631 are in strip shape and are respectively arranged on the outer sides of the tracks of the second track 5 and can move linearly and reciprocally. A plurality of telescopic push heads 632 are arranged at intervals on the brackets 631. When the telescopic push heads 632 extend, they are located on the track surface of the second track 5.

[0078] In this alternative embodiment, the bracket 631 of the reciprocating conveying mechanism makes a linear reciprocating motion along the second track 5. When it is necessary to convey the axle 9 in the to-be-inspected storage area 61 to the inspection station 62: First, all the telescopic push heads 632 retract, and the bracket 631 translates towards the blanking end of the conveying line 1, as Figure 6 shown; subsequently, the telescopic push heads 632 extend synchronously and snap into the rear of the rim of the axle 9; then the bracket 631 translates in the reverse direction, driving all the axles 9 on the second track 5 to move a set distance towards the inspection station 62, as Figure 7 shown. Through the above cyclic actions, the continuous conveyance of the axle 9 is achieved. A stop block needs to be configured at the position of the second track 5 corresponding to the inspection station 62 to position the axle 9, and after the axle 9 at this station is inspected, it must be immediately lifted and transported to the storage area 101.

[0079] Specifically, the bracket 631 can achieve linear reciprocating movement through the cooperation of a slide rail arranged on the side of the second track 5, and mechanisms such as a motor and a rack and pinion.

[0080] Optionally, the production line after the axle assembly further includes a storage area 101 and a truss manipulator 102. The storage area 101 is arranged on the side of the inspection area 6 away from the conveying line 1, and the truss manipulator 102 is used to lift and transport the axle 9 in the inspection area 6 to the storage area 101 for storage.

[0081] In this alternative embodiment, the qualified axle 9 in the inspection area 6 is lifted and placed on the modular positioning fixture in the storage area 101 by means of the truss manipulator 102, realizing the transfer between the inspection area 6 and the storage area 101. Specifically, the truss manipulator 102 can be composed of an X-direction traveling cart, a Y-direction traveling cart, a Z-direction lifting arm, etc., and the Z direction is the vertical direction.

[0082] Optionally, an anti-overrun mechanism is provided at the loading end of the conveying line 1, and the anti-overrun mechanism is used to limit the overrun of the axle 9 when it rolls along the first track 2 to the loading end of the conveying line 1.

[0083] In this alternative embodiment, by setting the anti-overrun mechanism, the overrun and falling off of the axle 9 when it rolls along the first track 2 to the loading end of the conveying line 1 are prevented. Specifically, the anti-overrun mechanism can adopt a double-layer structure of a blocking rod 13, with a buffer layer (such as polyurethane plastic) covering the outer layer and a high-strength steel skeleton as the inner core. When the axle 9 rolls to the loading end, the buffer layer absorbs the kinetic energy of the axle 9 through controllable deformation, realizing both the physical blocking function and avoiding mechanical damage to the surface of the axle. In addition to the above solution using the blocking rod 13, since the rolling speed of the axle 9 is generally small, manual intervention by the operator can also be used to manually block the overrun rolling of the axle 9.

[0084] Optionally, the second dial mechanism 7 is in the form of a hydraulic push rod, which is driven by a hydraulic cylinder and moves quickly.

[0085] Specifically, Figure 4 As shown, the second wheel-pulling mechanism 7 is composed of a base 71, a hydraulic cylinder 72 and a push plate 73: the base 71 is fixed to the side of the conveyor line 1 away from the second track 5; the cylinder body of the hydraulic cylinder 72 is hinged to the base 71, and the end of its piston rod is hinged to the back of the push plate 73; the bottom of the push plate 73 is hinged to the base 71 through a connecting rod, and the front of the push plate 73 faces the conveyor line 1 and is in an arc-shaped structure that fits the outer contour of the wheel axle. In addition, the first wheel-pulling mechanism 4 can also be in the form of a hydraulic push rod.

[0086] Optionally, the inspection area 6 is further provided with an information acquisition mechanism, which acquires information such as the size of the current axle 9 by identifying a mark plate on the axle 9 .

[0087] Optionally, the first track 2 passes through the paint application area 3 , and the first track 2 is also used for loading materials into the paint application area 3 .

[0088] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A production flow method after axle assembly, characterized in that: The steps include: The wheel axle (9) is moved in the paint painting area (3) to roll the wheel axle (9) to the feeding end of the conveyor line (1), thereby feeding the conveyor line (1); The wheel axle (9) is transported from the loading end to the unloading end of the conveyor line (1), and during the transportation, the wheel axle (9) passes through a drying area (8); The wheel axle (9) is moved at the unloading end of the conveyor line (1) to roll the wheel axle (9) to the inspection area (6), thereby realizing unloading of the conveyor line (1).

2. The production flow method after the wheel axle assembly according to claim 1 is characterized in that: The conveyor line (1) transports the wheel axle (9) along the Y direction, and during transportation, the axis of the wheel axle (9) remains parallel to the Y direction.

3. The production flow method after the wheel axle assembly according to claim 2 is characterized in that: The wheel axle (9) rolls along the X direction from the paint painting area (3) to the loading end of the conveyor line (1), and the wheel axle (9) rolls along the X direction from the unloading end of the conveyor line (1) to the inspection area (6); wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other.

4. The production flow method after the wheel axle assembly according to claim 1 is characterized in that: The method further comprises the following steps: the axle (9) is transferred from the inspection area (6) to the storage area (101) by a lifting operation.

5. A production line after the assembly of an axle based on the production circulation method after the assembly of an axle according to claims 1-4, characterized in that: The invention comprises a conveyor line (1), wherein a first track (2) and a paint painting area (3) are arranged on one side of a feeding end of the conveyor line (1), a first dial mechanism (4) is arranged in the paint painting area (3), a second track (5) and an inspection area (6) are arranged on one side of a discharging end of the conveyor line (1), and a second dial mechanism (7) is arranged at the discharging end of the conveyor line (1); The first dial mechanism (4) is used to dial the wheel shaft (9) to roll out from the paint painting area (3) and roll along the first track (2) to the loading end, thereby realizing the loading of the conveyor line (1); the second dial mechanism (7) is used to dial the wheel shaft (9) to roll out from the discharging end and roll along the second track (5) to the inspection area (6), thereby realizing the unloading of the conveyor line (1); It also comprises a drying area (8), the conveying route of the conveying line (1) passes through the drying area (8); the drying area (8) is used to dry the axle (9) transported on the conveying line (1).

6. The production line after the wheel axle assembly according to claim 5, characterized in that: The conveyor line (1) is laid along the Y direction, the first track (2) and the paint painting area (3) are arranged on one side of the loading end along the X direction, the second track (5) and the inspection area (6) are arranged on one side of the discharging end along the X direction, and the first track (2) and the second track (5) are both laid along the X direction; wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other.

7. The production line after the wheel axle assembly according to claim 6, characterized in that: The conveyor line (1) comprises an underground plate chain conveyor, wherein a groove (12) is provided in the middle of a bearing plate (11) of the underground plate chain conveyor, wherein the groove (12) is provided through along the Y direction, and the groove (12) is an arc groove adapted to the wheel of the wheel axle (9).

8. The production line after the wheel axle assembly according to claim 7, characterized in that: A drying box is provided in the drying area (8); the drying box cover is provided on the ground and extends from the tail end of the feeding end of the conveying line (1) to the tail end of the discharging end.

9. The production line after axle assembly according to claim 5, characterized in that: The inspection area (6) is provided with a storage area to be inspected (61), an inspection station (62) and a pushing mechanism (63); the second track (5) passes through the storage area to be inspected (61) from the unloading end of the conveyor line (1) and extends to the inspection station (62); the storage area to be inspected (61) is used to store the wheel axle (9) rolled out from the unloading end of the conveyor line (1); and the pushing mechanism (63) is used to push the wheel axle (9) to roll along the second track (5) from the storage area to be inspected (61) to the inspection station (62).

10. The production line after the wheel axle assembly according to claim 9, characterized in that: It also includes a storage area (101) and a truss manipulator (102), wherein the storage area (101) is arranged on a side of the inspection area (6) away from the conveyor line (1), and the truss manipulator (102) is used to lift the wheel axle (9) of the inspection area (6) to the storage area (101) for storage.

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