CN111889718B - Automobile middle and rear axle housing processing technology - Google Patents
Automobile middle and rear axle housing processing technology Download PDFInfo
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- CN111889718B CN111889718B CN202010787341.3A CN202010787341A CN111889718B CN 111889718 B CN111889718 B CN 111889718B CN 202010787341 A CN202010787341 A CN 202010787341A CN 111889718 B CN111889718 B CN 111889718B
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- axle housing
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- boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
Abstract
The application relates to the technical field of rear axle housing processing in the automobile, especially, relate to a rear axle housing processing technology in automobile, be applied to processing semi-finished product of rear axle housing in the automobile, semi-finished product of rear axle housing includes the bridge package and passes through two spindle noses that the linking arm is connected with the both ends of bridge package respectively in the automobile, and rear axle housing processing technology includes following step in the automobile: step 100, fixing a semi-finished product of a middle and rear axle housing of an automobile on a clamp; and step 200, boring the two shaft heads. The application provides a rear-axle housing processing technology in car is with rear-axle housing semi-manufactured goods mounting fixture in the car motionless, and adopts cutter boring spindle nose to carry out machine tooling, therefore improved the machining precision to the axiality in the course of working has been guaranteed, in this rear-axle housing processing technology in car promptly, replaces the combination processing technology of turning and grinding in the past with the boring, and technology is simpler, and the equipment that involves still less, and the machining precision is higher moreover.
Description
Technical Field
The application relates to the technical field of processing of automobile middle and rear axle housings, in particular to a processing technology of an automobile middle and rear axle housing.
Background
At present, in the traditional machining process of a semi-finished product of a rear axle housing in an automobile, inner holes at two ends of the axle housing are roughly bored and chamfers are arranged, then the chamfers are used for positioning, the shaft diameter of a main shaft, a flange spigot, the end face of the flange and the threads of a shaft head are turned, and finally a bearing position is ground on a grinding machine.
The traditional processing technology is complex, each procedure needs one device, and workpieces need to be clamped for many times in the whole processing process.
Disclosure of Invention
An object of the application is to provide a rear axle housing processing technology in car, it is complicated to have solved the traditional processing technology who exists among the prior art to a certain extent, relates to many machining equipment, needs to circulate and the technical problem of machined part is treated in the clamping between many machining equipment moreover.
The application provides a processing technology of a middle and rear axle housing of an automobile, which is applied to processing a semi-finished product of the middle and rear axle housing of the automobile, wherein the semi-finished product of the middle and rear axle housing of the automobile comprises a bridge package and two shaft heads respectively connected with two ends of the bridge package through connecting arms;
the machining process of the automobile middle and rear axle housing comprises the following steps:
step 100, fixing the semi-finished product of the middle and rear axle housing of the automobile on a clamp;
and step 200, boring the two shaft heads.
In the above technical solution, further, in step 100, after the semi-finished product of the rear-axle housing in the automobile is fixed to the fixture, the lute hole of the axle bag of the semi-finished product of the rear-axle housing in the automobile is positioned in the middle.
In any one of the above technical solutions, further, a flange is arranged at a position of the connecting arm, which is close to the spindle head, and a clamp is used for clamping an outer circular surface of the flange, so as to fix the semi-finished product of the automotive rear axle housing to the clamp.
In any of the above technical solutions, further, step 200 includes: roughly boring the main shaft diameter of the shaft head, the spigot of the flange and the end surface of the flange, finely boring the main shaft diameter of the shaft head, the spigot of the flange and the end surface of the flange, boring a hollow cutter groove, and boring a thread of the shaft head.
In any of the above technical solutions, further, in step 200, the two spindle heads are simultaneously bored.
In any of the above technical solutions, further, in step 200, the spindle diameter, the spigot of the flange, and the machining accuracy of the end face of the flange are detected in real time, and are automatically compensated in the subsequent machining process.
In any of the above technical solutions, further, the cylindricity of the main shaft diameter of the shaft head is less than or equal to 0.01, and the coaxiality of the main shaft diameter of the shaft head is phi 0.015.
In any of the above technical solutions, further, the roughness Ra of the main shaft diameter of the spindle head is less than or equal to 0.8 μm.
In any of the above technical solutions, further, the roughness Ra of the spigot of the flange is less than or equal to 3.2 μm.
In any of the above technical solutions, further, the perpendicularity of the end face of the flange is less than or equal to 0.05, and the roughness Ra of the end face of the flange is less than or equal to 3.2 μm.
Compared with the prior art, the beneficial effect of this application is:
the application provides a rear-axle housing processing technology in car, it is with the semi-manufactured goods mounting fixture of rear-axle housing in the car motionless, and adopt cutter boring spindle nose, machine tooling, work piece rotates in the course of working among the prior art, machining precision has been improved, and the axiality in the course of working has been guaranteed, in this rear-axle housing processing technology in car promptly, replace the combined machining technology of turning and grinding in the past with the boring, the technology is simpler, the equipment that involves still less, and machining precision is higher moreover.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a process for machining a rear axle housing of an automobile according to an embodiment of the application;
FIG. 2 is a further flowchart of a process for machining a rear axle housing of an automobile according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a semi-finished product of a rear axle housing in an automobile according to an embodiment of the present application;
FIG. 4 is a schematic partial structural view of a semi-finished rear axle housing of an automobile according to an embodiment of the present application.
Reference numerals:
10-semi-finished product of a rear axle housing in an automobile, 1-axle packet, 2-connecting arm, 3-axle head and 4-flange.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.
Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly over" or "directly overlying" another element, there may be no intervening elements present.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both an orientation of "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.
A process for machining a rear axle housing in an automobile according to some embodiments of the present application will be described with reference to fig. 1 to 4.
Referring to fig. 1, 3 and 4, an embodiment of the present application provides a process for machining a rear-axle housing in an automobile, which is applied to machining a semi-finished product 10 of the rear-axle housing in the automobile, where the semi-finished product 10 of the rear-axle housing in the automobile includes a bridge package 1 and two spindle heads 3 respectively connected to two ends of the bridge package 1 through connecting arms 2, that is, two ends of the bridge package 1 are respectively connected to one connecting arm 2, and one end of any connecting arm 2, which is far away from the bridge package 1, is further connected to one spindle head 3;
the machining process of the automobile middle and rear axle housing comprises the following steps:
and 102, boring the two shaft heads 3.
Therefore, the machining process for the automobile middle and rear axle housing provided by the application has the advantages that the semi-finished product 10 of the automobile middle and rear axle housing is fixed by the fixture, the spindle nose 3 is bored by the tool for machining, the machining precision is improved compared with the rotation of a workpiece in the machining process in the prior art, and the coaxiality in the machining process is ensured.
In the processing technology of the rear axle housing in the automobile, the original combined processing technology of turning and grinding is replaced by boring, the technology is simpler, the related equipment is less, the technology is used for clamping once, all sizes are processed subsequently, the processing precision is higher, the clamping frequency is less, and further the labor intensity of workers is greatly reduced.
In step 101, manually conveying the semi-finished product 10 of the rear axle housing in the automobile to a clamp through a lifting appliance for fixing. Step 102 is followed by a step of manually removing the semi-finished rear axle housing 10 from the fixture by using a lifting tool.
The detailed steps related to the process for machining the rear axle housing in the automobile will be explained below.
In this embodiment, preferably, in step 101, after the axle housing semi-finished product 10 is fixed to the jig, it is positioned in the lute hole of the axle bag 1 of the axle housing semi-finished product 10.
According to the above description, specifically, the positioning part on the clamp can be inserted into the lute hole of the axle bag 1 to position the lute hole of the axle bag 1 of the semi-finished automobile middle and rear axle housing 10 in a centered manner, so that the machining precision of the two shaft heads 3 on the left side and the right side is ensured.
In this embodiment, it is preferable that the connecting arm 2 is provided with a flange 4 at a position near the spindle head 3, and the outer circumferential surface of the flange 4 is clamped by a jig to fix the axle housing semi-finished product 10 in the automobile.
According to the above description, the outer circular surface of the flange 4 is clamped by the clamp, because the outer circular surfaces of the flanges 4 of the automotive intermediate and rear axle housing semi-finished product 10 are machined, the roughness is small, the precision is high, the precision of the later machining can be ensured, the rest positions are not machined, the surface is rough, and if the positions are clamped, the later machining precision can be influenced.
In this embodiment, preferably, as shown in fig. 3 and 4, step 102 includes: roughly boring the main shaft diameter of the shaft head 3, the spigot of the flange 4 and the end surface of the flange 4, then finely boring the main shaft diameter of the shaft head 3, the spigot of the flange 4 and the end surface of the flange 4, boring a hollow cutter groove, and then boring a thread of the shaft head 3.
From the above description, it can be seen that the respective spindle diameters D1, D of the rough boring spindle head 32、D3、D4That is to say, the spindle diameters are roughly bored in sequence along the length of the spindle head 3, then the spindle diameters of the spindle head 3 are finely bored, after the boring is completed, the cutter groove is bored, and then the external thread of the spindle diameter D1 of the spindle head 3 is bored.
Specifically, in step 102, the machining accuracy of the spindle diameter, the spigot of the flange 4, and the end face of the flange 4 is detected in real time, and is automatically compensated in the subsequent machining process, so that the machining accuracy is ensured.
In this embodiment, preferably, in step 102, the two spindle heads 3 are simultaneously bored, so that the production efficiency can be improved.
In this embodiment, preferably, the cylindricity of the major axis diameter of the stub shaft 3 is less than or equal to 0.01, the coaxiality of the major axis diameter of the stub shaft 3 is φ 0.015, and the roughness Ra of the major axis diameter of the stub shaft 3 is less than or equal to 0.8 μm.
In this embodiment, it is preferable that the roughness Ra of the spigot of the flange 4 is less than or equal to 3.2 μm, the perpendicularity of the end face of the flange 4 is less than or equal to 0.05, and the roughness Ra of the end face of the flange 4 is less than or equal to 3.2 μm.
In summary, referring to fig. 2, the steps of the process for machining the rear axle housing in the automobile are as follows:
Therefore, the double-shaft head 3 is processed simultaneously (the diameter of the main shaft, the spigot of the flange 4, the end surface of the flange 4 and the threads of the shaft head 3 are processed); the semi-finished product 10 of the rear axle housing in the automobile is fixed on the clamp, a combined machining process of turning and grinding is replaced by boring, the process is simpler, compared with the traditional multi-process machining, the required equipment is less, the occupied space is small, and the machining precision is higher.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. The utility model provides a rear-axle housing processing technology in car is applied to rear-axle housing semi-manufactured goods in the processing car, rear-axle housing semi-manufactured goods in the car include the bridge package and respectively with two spindle noses that the both ends of bridge package are connected through the linking arm, its characterized in that, rear-axle housing processing technology includes following step in the car:
step 100, fixing the semi-finished product of the middle and rear axle housing of the automobile on a clamp;
step 200, boring the two shaft heads;
in step 100, after the semi-finished product of the rear axle housing in the automobile is fixed on a clamp, centering and positioning lute holes of a bag of the semi-finished product of the rear axle housing in the automobile;
a flange is arranged at the position, close to the shaft head, of the connecting arm, and a clamp is used for clamping the outer circular surface of the flange so as to fix the semi-finished product of the middle and rear axle housing of the automobile on the clamp;
step 200 comprises: roughly boring the main shaft diameter of the shaft head, the spigot of the flange and the end surface of the flange, finely boring the main shaft diameter of the shaft head, the spigot of the flange and the end surface of the flange, boring a hollow cutter groove, and boring a thread of the shaft head;
in step 200, the machining precision of the spindle diameter, the spigot of the flange and the end face of the flange is detected in real time, and automatic compensation is performed in the subsequent machining process.
2. The automobile rear-axle housing machining process according to claim 1, characterized in that the cylindricity of the main shaft diameter of the shaft head is less than or equal to 0.01, and the coaxiality of the main shaft diameter of the shaft head is phi 0.015.
3. The automobile rear-axle housing machining process according to claim 1, characterized in that the roughness Ra of the main shaft diameter of the shaft head is less than or equal to 0.8 μm.
4. The automobile rear-axle housing machining process according to claim 1, characterized in that the roughness Ra of the spigot of the flange is less than or equal to 3.2 microns.
5. The automobile rear-axle housing machining process according to claim 1, characterized in that the perpendicularity of the end face of the flange is less than or equal to 0.05, and the roughness Ra of the end face of the flange is less than or equal to 3.2 microns.
6. The automotive rear axle housing machining process according to any one of claims 1 to 5, characterized in that in step 200, the two spindle heads are simultaneously subjected to boring machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010787341.3A CN111889718B (en) | 2020-08-06 | 2020-08-06 | Automobile middle and rear axle housing processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010787341.3A CN111889718B (en) | 2020-08-06 | 2020-08-06 | Automobile middle and rear axle housing processing technology |
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| Publication Number | Publication Date |
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| CN111889718A CN111889718A (en) | 2020-11-06 |
| CN111889718B true CN111889718B (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010787341.3A Active CN111889718B (en) | 2020-08-06 | 2020-08-06 | Automobile middle and rear axle housing processing technology |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178789B (en) * | 2021-12-07 | 2022-11-01 | 徐州科源液压股份有限公司 | Method for machining lifting drive axle housing of sanitation truck |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB598626A (en) * | 1944-12-22 | 1948-02-23 | Timken Axle Co Detroit | Vehicle brakes |
| CN2468805Y (en) * | 2001-03-08 | 2002-01-02 | 施永成 | Rear axle shell complete set made of manganese steel by hot punching |
| DE10137437B4 (en) * | 2001-07-31 | 2009-01-15 | Ks Kolbenschmidt Gmbh | Method of machining holes |
| CN201693356U (en) * | 2010-05-31 | 2011-01-05 | 龙岩伍旗力金机械有限公司 | Combined special double-head boring machine for axle case |
| CN102303148B (en) * | 2011-07-14 | 2013-05-29 | 山东大学威海分校 | Novel compensating device for boring cutter |
| CN109894809A (en) * | 2017-12-11 | 2019-06-18 | 衡阳风顺车桥有限公司 | Rear axle casing of electric vehicle assembly processing technology |
| CN110253264B (en) * | 2019-07-17 | 2021-03-23 | 安徽工业大学 | Method for press mounting of axle head and middle section of automobile middle and rear axle housing assembly |
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2020
- 2020-08-06 CN CN202010787341.3A patent/CN111889718B/en active Active
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