Locomotive wheel component assembly method

Abstract

The application provides a locomotive wheel component assembling method, which comprises the following steps: pre-assembling a brake disc to be assembled and a whole wheel to be assembled through bolts; fastening the bolts of the pre-assembled brake disc and whole wheel through a bolt fastening machine; obtaining a torque value of the fastened bolts, and determining whether the assembly of the brake disc and the whole wheel is phase-qualified according to whether the torque value meets a preset condition; and disassembling the bolts and re-fastening when the assembly is not phase-qualified. According to the technical scheme of the application, for the assembly of the locomotive wheel component, the torque value of the fasteners such as bolts is obtained and analyzed, so that the fastening quality and condition of the assembly can be clearly guided, and thus the subsequent problems of loosening and stress caused by poor fastening quality can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locomotive component assembly, and in particular to a locomotive wheel component assembly method. BACKGROUND

[0002] The wheel components of a railway locomotive need to be reassembled after maintenance, but the current assembly method is still relatively traditional, and only fasteners are used for fastening. However, there is no clear judgment on the quality and condition of fastening, which leads to some problems after the wheel components are assembled, such as loose fasteners or stress problems caused by different fastening degrees of multiple fasteners. Therefore, a locomotive wheel component assembly method is needed to solve the fastening quality problem of fasteners during assembly. SUMMARY

[0003] In order to solve the problem of loose and stress caused by different fastening qualities of fasteners in the assembly process of the prior art, the present application provides a locomotive wheel component assembly method.

[0004] The locomotive wheel component assembly method provided by the present application comprises:

[0005] Pre-assemble a brake disc to be assembled and a whole wheel to be assembled through bolts;

[0006] Fasten the bolts of the pre-assembled brake disc and the whole wheel through a bolt fastening machine;

[0007] Obtain the torque value of the fastened bolts, and determine whether the assembly of the brake disc and the whole wheel is phase-qualified according to whether the torque value meets a preset condition;

[0008] When the phase is unqualified, disassemble the bolts and re-fasten them.

[0009] In an embodiment, obtaining the torque value of the fastened bolts comprises:

[0010] According to the number of bolts in the assembly structure of the brake disc and the whole wheel, the torque values of part of the bolts are sampled.

[0011] In an embodiment, the positions of the sampled bolts on the assembly structure are uniformly distributed.

[0012] In an embodiment, determining whether the assembly of the brake disc and the whole wheel is phase-qualified comprises:

[0013] Respectively obtain the torque values of the sampled bolts, and judge whether the torque values of the multiple bolts meet a preset condition;

[0014] If yes, it is determined that the assembly of the brake disc and the whole wheel is phase-qualified;

[0015] Otherwise, it is unqualified.

[0016] In one embodiment, it further comprises:

[0017] When phase-qualified, the brake disc and the whole wheel are integrally transferred to a static balance testing machine for static balance testing;

[0018] According to the static balance testing result, it is determined whether the assembly of the brake disc and the whole wheel is finally qualified.

[0019] In one embodiment, it further comprises:

[0020] If the assembly of the brake disc and the whole wheel is finally qualified, the assembled brake disc and the whole wheel are transferred to a qualified storage rack;

[0021] If the assembly of the brake disc and the whole wheel is finally unqualified, the brake disc and the whole wheel are transferred to a bolt fastening machine, the bolts are disassembled and re-fastened.

[0022] In one embodiment, it further comprises:

[0023] The qualified storage rack is transferred to a component discharge area by using an AGV trolley;

[0024] The brake disc and the whole wheel assembly on the qualified storage rack in the component discharge area are taken away by using a forklift.

[0025] In one embodiment, before the brake disc to be assembled and the whole wheel to be assembled are pre-assembled by bolts, it further comprises:

[0026] The brake disc to be assembled and the whole wheel to be assembled are received;

[0027] The accompanying labels of the brake disc and the whole wheel are identified respectively, and an identification code corresponding to the assembly relationship of the brake disc and the whole wheel assembled with each other is established.

[0028] In one embodiment, according to the assembly condition of the brake disc and the whole wheel assembled with each other, the accompanying labels are information-updated by using the identification code;

[0029] The assembly condition includes phase-qualified condition and finally-qualified condition.

[0030] In one embodiment, the brake disc and the whole wheel are transferred in the assembly process by using an up-and-down feeding manipulator.

[0031] The above technical features can be combined in various suitable manners or replaced by equivalent technical features, as long as the objectives of the present application can be achieved.

[0032] The locomotive wheel component assembly method provided by the present application has at least the following beneficial effects compared with the prior art:

[0033] The locomotive wheel component assembly method provided by the present application can clearly guide the fastening quality and situation of assembly through the acquisition and analysis of the torque value of the fastener such as a bolt, thereby effectively avoiding the subsequent loosening and stress problems caused by poor fastening quality. BRIEF DESCRIPTION OF DRAWINGS

[0034] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings. Among them:

[0035] Figure 1 The main flowchart of the maintenance method of the present application is shown. DETAILED DESCRIPTION

[0036] The present application will be further described below in combination with the accompanying drawings.

[0037] The embodiments of the present application provide a locomotive wheel component assembly method, comprising:

[0038] Step S000: workpiece input;

[0039] Step S010: input the brake disc to be assembled and the whole wheel to be assembled;

[0040] Step S020: identify the attached labels of the brake disc and the whole wheel respectively, and establish an identification code corresponding to the assembly relationship of the brake disc and the whole wheel to be assembled;

[0041] Specifically, the brake disc and the whole wheel workpieces are input respectively, the information of the workpieces can be identified by scanning the attached labels, then the brake disc and the whole wheel are assembled in pairs, the identification code corresponding to the assembly relationship is established, and the identification code can reflect the workpiece information of the brake disc and the whole wheel to be assembled. Further, in combination with the assembly relationship of the wheel component during normal use, the brake disc and the whole wheel to be assembled are preferably assembled during assembly, and it can be identified through the attached labels whether the brake disc and the whole wheel to be assembled are originally matched.

[0042] Step S100: the upper and lower mechanical hands assist the workers to hoist the brake disc and the whole wheel to the pre-assembly table, and the workers pre-assemble the brake disc to be assembled and the whole wheel to be assembled through bolts;

[0043] Step S200: The pre-assembled brake disc and the whole wheel are hoisted to the bolt fastening machine by the feeding and discharging manipulator, and the bolts of the pre-assembled brake disc and the whole wheel are fastened by the bolt fastening machine.

[0044] Specifically, compared with manual fastening, the bolt fastening machine has more accurate torque control, which can improve the quality of fastening.

[0045] Step S300: The feeding and discharging manipulator discharges from the bolt fastening machine, and according to the number of bolts of the brake disc and the whole wheel assembly structure, the torque values of part of the bolts are sampled, and according to whether the torque values meet the preset condition, it is determined whether the assembly of the brake disc and the whole wheel is phase qualified; the positions of the sampled bolts on the assembly structure are uniformly distributed.

[0046] Specifically, according to the number of bolts of the brake disc and the whole wheel assembly structure, if the number is small, all the bolts can be sampled. If the number is large, one or more bolts can be sampled at each position of the assembly structure to check whether the torque values meet the preset condition. The preset condition can be a threshold range, or the torque values of the sampled bolts can be further set to volatility and change amplitude.

[0047] Step S310: The torque values of the sampled bolts are obtained respectively, and it is judged whether the torque values of the bolts meet the preset condition.

[0048] Specifically, it can be judged whether the torque values of the bolts are within the preset range, or whether the change amplitude and volatility of the torque values of the bolts exceed the preset amplitude.

[0049] Step S320: If yes, it is determined that the assembly of the brake disc and the whole wheel is phase qualified.

[0050] Step S330: Otherwise, it is unqualified.

[0051] Step S400: When the phase is unqualified, the bolts are disassembled and re-fastened.

[0052] Specifically, disassembling the bolts means loosening the bolts, and transferring the brake disc and the whole wheel to the bolt fastening machine for re-fastening. Of course, at the same time, according to the sampling result, for example, only a certain bolt does not meet the preset condition, the bolt can also be replaced.

[0053] Step S500: When the phase is qualified, the feeding and discharging manipulator assists the workers to transfer the brake disc and the whole wheel to the static balance testing machine for static balance test.

[0054] Step S600: The loading and unloading manipulator unloads the material into the static balance test machine, and determines whether the assembly of the brake disc and the integral wheel is finally qualified according to the static balance test result;

[0055] Step S610: If the assembly of the brake disc and the integral wheel is finally qualified, the information of the attached label is updated using the identification code, and the assembled brake disc and the integral wheel are transferred to a qualified storage rack;

[0056] Step S611: Using an AGV to transfer the qualified storage rack to the component disbursement area;

[0057] Step S612: Use a forklift to remove the brake disc and the transfer body of the integral wheel from the qualified storage rack in the component dispensing area.

[0058] Step S620: If the assembly of the brake disc and the integral wheel is ultimately unqualified, the brake disc and the integral wheel are transferred to a bolt tightening machine, the bolts are removed and re-tightened.

[0059] In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top",

[0060] The directions or positional relationships indicated by “front”, “rear”, “inside”, “outside”, “left”, “right”, etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0061] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A method of assembling a locomotive wheel component, comprising: The application relates to a method for assembling a brake disc and a whole wheel, comprising the following steps: pre-assembling the brake disc to be assembled and the whole wheel to be assembled through bolts; fastening the bolts of the pre-assembled brake disc and the whole wheel through a bolt fastening machine; obtaining the torque value of the fastened bolts, and determining whether the assembly of the brake disc and the whole wheel is phase-qualified according to whether the torque value meets preset conditions; when the assembly is not phase-qualified, the bolts are disassembled and fastened again; when the assembly is phase-qualified, the brake disc and the whole wheel are transferred to a static balance testing machine for static balance testing; according to the static balance testing result, determining whether the assembly of the brake disc and the whole wheel is finally qualified; if the assembly of the brake disc and the whole wheel is finally qualified, the assembled brake disc and the whole wheel are transferred to a qualified storage rack; if the assembly of the brake disc and the whole wheel is not finally qualified, the brake disc and the whole wheel are transferred to the bolt fastening machine, and the bolts are disassembled and fastened again.

2. The method of assembling a railcar wheel component as defined in claim 1, wherein, obtaining the torque value of the fastened bolts comprises the following steps: according to the number of the bolts of the assembly structure of the brake disc and the whole wheel, the torque values of part of the bolts are selected for inspection.

3. The method of assembling a railcar wheel component as defined in claim 2, wherein, The positions of the selected bolts on the assembly structure are uniformly distributed.

4. The method of assembling a locomotive wheel component of claim 2 wherein, determining whether the assembly of the brake disc and the whole wheel is phase-qualified comprises the following steps: respectively obtaining the torque values of the selected bolts, and judging whether the torque values of the selected bolts all meet preset conditions; if yes, it is determined that the assembly of the brake disc and the whole wheel is phase-qualified; otherwise, the assembly is not phase-qualified.

5. The method of assembling a railcar wheel component as defined in claim 1, wherein, The application further comprises the following steps: transferring the qualified storage rack to a component output area by using an AGV trolley; taking away the assembly of the brake disc and the whole wheel on the qualified storage rack in the component output area by using a forklift.

6. The method of assembling a railway wheel component according to any one of claims 1 to 5, wherein, Before pre-assembling the brake disc to be assembled and the whole wheel to be assembled through bolts, the method further comprises the following steps: feeding the brake disc to be assembled and the whole wheel to be assembled; respectively identifying the attached labels of the brake disc and the whole wheel, and establishing an identification code corresponding to the assembly relationship of the brake disc and the whole wheel; 7. The method of assembling a railcar wheel component as defined in claim 6, wherein, according to the assembly condition of the brake disc and the whole wheel, updating the information of the attached labels through the identification code; wherein the assembly condition comprises phase-qualified condition and finally-qualified condition.

8. The method of assembling a railway wheel component according to any one of claims 1 to 5, wherein, The brake disc and the whole wheel are transferred through a feeding and discharging manipulator during the assembly process.

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