CN110625333B - Processing method of new energy rear end cover - Google Patents
Processing method of new energy rear end cover Download PDFInfo
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- CN110625333B CN110625333B CN201910738818.6A CN201910738818A CN110625333B CN 110625333 B CN110625333 B CN 110625333B CN 201910738818 A CN201910738818 A CN 201910738818A CN 110625333 B CN110625333 B CN 110625333B
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- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The application provides a processing method of a new energy rear end cover, which comprises the following steps: the method comprises the main processing steps of data analysis, blanking, steel sleeve processing, front and back surface rough machining, heat treatment, hot pressing of the steel sleeve, front surface finish machining, back surface and side surface finish machining and the like. The method and the device can simplify processing, reduce cost and further shorten the processing period. The method and the device can be used for machining mechanical structural parts, new product research and development sample parts and small and medium-sized trial production prototypes.
Description
Technical Field
The application relates to the field of mechanical structure part manufacturing, in particular to a machining method for a new energy rear end cover.
Background
The related processing procedures are involved in mechanical structural parts, new product research and development sample parts and small and medium-sized trial production. The inventors have found that prototyping methods for precision structural components are generally complex and costly. Further, the time taken for the processing is also relatively long. Aiming at the problems of complex processing method, high cost and long processing period in the related technology, no effective solution is provided at present.
Disclosure of Invention
The application provides a new energy rear end cover machining method aiming at the problems in the prior art, and can solve the problems of complex machining method, high cost and long machining period. In order to solve at least one of the above problems, the present application provides the following technical solutions: in a first aspect, the application provides a method for processing a new energy rear end cover, including:
(1) and (3) data analysis: analyzing and determining the interference magnitude of the rear end cover with the steel sleeve embedded therein according to the processing requirement of the rear end cover, wherein the rear end cover is a rear cover arranged behind the shell;
(2) blanking: determining the blanking size according to the machining size of the rear end cover and blanking from the whole forged plate;
(3) steel sleeve processing: machining the steel sleeve in place according to the machining size of the rear end cover and the interference magnitude;
(4) rough machining of the front side and the back side: reserving an end cover protection surface, a surface to be finished and a process surface, and processing other contour surfaces in place;
(5) and (3) heat treatment: placing the rear end cover into an oven for heat treatment;
(6) hot-pressing a steel sleeve: taking out the rear end cover shell after heat treatment, placing a steel sleeve into the rear end cover shell, and then performing air cooling;
(7) and (3) front finish machining: clamping according to the process columns and the positioning holes determined in the rear end cover machining requirement, and machining the front side of the rear end cover by adopting a first machining center;
(8) and (3) fine machining of the back surface and the side surface: and clamping the rear end cover with the front finish machining finished through the positioning hole and the positioning surface, and machining the back surface and the side surface by using a second machining center.
Further, the step of analyzing the data further comprises: and (3) making a protection surface for the characteristic of high machining precision, wherein the protection surface is 1 mm-1.5 mm.
Further, the step of blanking further comprises: and performing unilateral amplification and height amplification according to the actual machining sizes of the length and the width of the rear end cover to obtain a blanking size, and blanking the whole forged aluminum plate.
Further, the step of performing the heat treatment further comprises a time limit of the heat treatment: keeping the temperature for at least 8 hours at the temperature of not less than 170 ℃.
Further, the step of hot-pressing the steel sleeve further includes:
and the unilateral interference magnitude when the steel sleeve is placed in the shell of the rear end cover is not more than 0.08 mm.
Further, the step of hot-pressing the steel sleeve further comprises: keeping the mixture at the normal temperature for 1 to 2 days, and carrying out air cooling.
Further, in the step of front finish machining, a first machining center is adopted as a three-axis vertical machining center.
Further, in the step of finish machining of the reverse side and the side face, a second machining center is adopted as a five-axis vertical machining center.
Further, the method further comprises: the post-processing step comprises one or more of the following operations: removing burrs and aluminum scraps or performing ultrasonic cleaning.
In a second aspect, the application provides a new energy rear end cover which is processed according to the workpiece processing method.
According to the technical scheme, the application provides a method for processing a new energy rear end cover, and the method comprises the following steps: (1) the method comprises the main processing steps of data analysis, (2) blanking, (3) steel sleeve processing, (4) front and back surface rough machining, (5) heat treatment, (6) hot pressing of the steel sleeve, (7) front surface fine machining, (8) back surface and side surface fine machining and the like, and the processing steps are automatically processed through mechanical processing equipment, so that the processing is simplified, the cost is reduced, and the period of a processing prototype is further shortened.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a processing method for a new energy rear end cover in an embodiment of the present application;
fig. 2 is a schematic flow chart of a method for processing a new energy rear end cover in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 order to solve the corresponding technical problem, in an embodiment of the workpiece processing method of the present application, the processing method for the new energy rear end cover further includes the following steps:
as shown in fig. 1, the method includes steps S100 to S109 as follows:
step S101, data analysis: according to the processing requirement of the rear end cover, the interference magnitude of the steel sleeve embedded in the rear end cover is analyzed and determined, and the rear end cover is a rear cover arranged behind the shell. As can be understood by those skilled in the art, when the new energy rear end cover is processed, the rear end cover refers to a rear cover installed behind a motor or the like.
Step S102, blanking: determining the blanking size according to the machining size of the rear end cover and blanking from the whole forged plate;
the operation step of blanking refers to the blanking treatment of the rear end cover.
Step S103, steel sleeve processing: machining the steel sleeve in place according to the machining size of the rear end cover and the interference magnitude;
and when the steel sleeve is machined, machining in place according to the machining size of the rear end cover and the interference magnitude.
Step S104, rough machining is conducted on the front side and the back side: reserving an end cover protection surface, a surface to be finished and a process surface, and processing other contour surfaces in place; the main function of step 104 is to relieve stress.
Step S105, heat treatment: placing the rear end cover into an oven for heat treatment; it is noted that the heat treatment has a process aging, which is to be noted when the rear end cap is placed in an oven for heat treatment.
Step S106, hot pressing the steel sleeve: taking out the rear end cover outer shell after heat treatment, and placing the inner sleeve into the rear end cover outer shell for air cooling; specifically, attention is also paid to the amount of unilateral interference when performing hot-press steel bushing processing for placing the inner sleeve into the outer sleeve housing.
Step S107, front finishing: clamping according to the process column and the positioning hole determined in the rear end cover machining requirement, and machining the front side of the rear end cover through a first machining center; and finishing the front surface of the rear end cover in the first machining center according to the determined process column and the determined positioning hole.
Step S108, fine finishing of the back surface and the side surface: and machining the back surface and the side surface by using a second machining center according to the positioning hole and the positioning surface which are machined and clamped by the rear end cover with the front surface finished.
And performing finish machining on the back surface and the side surface through the second machining center according to the positioning hole and the positioning surface which are machined and clamped in the previous step.
From the above description, it can be seen that the following technical effects are achieved by the present application: according to the technical scheme, the application provides a method for processing a new energy rear end cover, and the method comprises the following steps: (1) the method comprises the main processing steps of data analysis, (2) blanking, (3) steel sleeve processing, (4) front and back surface rough machining, (5) heat treatment, (6) hot pressing of the steel sleeve, (7) front surface fine machining, (8) back surface and side surface fine machining and the like, and the processing steps are automatically processed through mechanical processing equipment, so that the processing is simplified, the cost is reduced, and the period of a processing prototype is further shortened.
According to an embodiment of the present application, preferably, the step of analyzing the data further includes: and (3) making a protection surface for the characteristic of high machining precision, wherein the protection surface is 1 mm-1.5 mm.
Specifically, in the stage of data analysis, the interference magnitude of the steel bushing embedded in the rear end cover and a protection surface for the features with high machining precision need to be determined, and the protection surface is generally 1 mm to 1.5 mm. It should be noted that the range of the protection surface can be adjusted by those skilled in the art, and is not particularly limited in the embodiments of the present application.
According to the embodiment of the present application, preferably, the step of blanking further includes: and performing unilateral amplification and height amplification according to the actual machining sizes of the length and the width of the rear end cover to obtain a blanking size, and blanking the whole forged aluminum plate.
Specifically, the rear end cover is blanked, the length and the width of the product are respectively enlarged by 3 mm at one side, and the height of the product is enlarged by 10 mm to serve as a blanking size, so that the product is blanked from the whole forged aluminum plate (model 6061-T6).
According to the embodiment of the present application, preferably, the step of performing the heat treatment further includes a time limit of the heat treatment: keeping the temperature for at least 8 hours at the temperature of not less than 170 ℃. Specifically, the rear end cap was placed in an oven and kept at a constant temperature of 170 ℃ for 8 hours.
According to an embodiment of the present application, preferably, the step of hot-pressing the steel sleeve further includes: and the unilateral interference magnitude when the steel sleeve is placed in the shell of the rear end cover is not more than 0.08 mm.
Specifically, when hot-pressing the steel sleeve: and taking out the rear end cover shell in the oven, immediately placing the steel sleeve in the rear end cover shell, and then air cooling. At the moment, the unilateral interference magnitude is not more than 0.08 mm.
According to an embodiment of the present application, preferably, the step of hot-pressing the steel sleeve further includes: air cooling at normal temperature for 1-2 days. Specifically, the steel sleeve is processed in place according to the size designed in the data analysis step during processing of the steel sleeve, at least 0.5 mm is left on a single side of an inner ring, and the rear end cover blank is placed at normal temperature for 1-2 days for aging.
According to an embodiment of the present application, preferably, in the step of front-side finishing, the first machining center used is a three-axis vertical machining center.
Specifically, the three-axis vertical machining center can purposefully complete different machining items such as wire cutting, drilling, punching, tapping and the like on the same machine, and has an automatic switching function among various tools. So that the fine finishing of the side and reverse surfaces can be well completed.
According to the embodiment of the application, preferably, the step of finishing the back surface and the side surface adopts a five-axis vertical machining center as the second machining center.
Specifically, the five-axis vertical machining center can purposefully complete different machining items such as wire cutting, drilling, punching, tapping and the like on the same machine, and has an automatic switching function among various tools. So that the fine finishing of the side and reverse surfaces can be well completed.
According to an embodiment of the present application, preferably, the method further includes: the post-processing step comprises one or more of the following operations: removing burrs and aluminum scraps or performing ultrasonic cleaning. Specifically, the subsequent treatment may be to manually remove burrs and aluminum chips generated by machining, and then to perform ultrasonic cleaning.
In the embodiments of the present application, the specific post-treatment is not specifically limited, and those skilled in the art may select the post-treatment according to the actual use situation.
In another embodiment of the present application, a new energy rear end cover is provided, which is processed according to the workpiece processing method, as shown in fig. 2, the processing method at least includes:
(1) and (3) data analysis: analyzing and determining the interference magnitude of the rear end cover with the steel sleeve embedded therein according to the processing requirement of the rear end cover, wherein the rear end cover is a rear cover arranged behind the shell;
(2) blanking: determining the blanking size according to the machining size of the rear end cover and blanking from the whole forged plate;
(3) steel sleeve processing: machining the steel sleeve in place according to the machining size of the rear end cover and the interference magnitude;
(4) rough machining of the front side and the back side: reserving an end cover protection surface, a surface to be finished and a process surface, and processing other contour surfaces in place;
(5) and (3) heat treatment: placing the rear end cover into an oven for heat treatment;
(6) hot-pressing a steel sleeve: taking out the rear end cover shell after heat treatment, placing a steel sleeve into the rear end cover shell, and then performing air cooling;
(7) and (3) front finish machining: clamping according to the process column and the positioning hole determined in the rear end cover machining requirement, and machining the front side of the rear end cover through a first machining center;
(8) and (3) fine machining of the back surface and the side surface: and clamping the rear end cover with the front finish machining finished through the positioning hole and the positioning surface, and machining the back surface and the side surface by using a second machining center.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only an example of the present specification, and is not intended to limit the present specification. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.
Claims (7)
1. A processing method of a new energy rear end cover is characterized by comprising the following steps:
(1) and (3) data analysis:
the rear end cover is a rear cover arranged behind the shell and comprises a rear end cover shell and a steel sleeve, and the interference magnitude of the steel sleeve embedded in the rear end cover shell is analyzed and determined according to the processing requirement of the rear end cover; setting a protection surface for the characteristic with high processing precision, wherein the protection surface is 1 mm to 1.5 mm;
(2) blanking:
according to the machining size of the rear end cover shell, the machining size of the rear end cover shell is subjected to unilateral amplification and height amplification to serve as a blanking size, and the whole forged aluminum plate is blanked;
(3) steel sleeve processing:
machining the steel sleeve in place according to the machining size and the interference magnitude of the rear end cover;
(4) rough machining of the front side and the back side:
reserving a protection surface, a surface to be finished and a process surface of the rear end cover shell, and processing other contour surfaces in place;
(5) and (3) heat treatment:
placing the rear end cover shell into an oven for heat treatment;
(6) hot-pressing a steel sleeve:
taking out the rear end cover shell after heat treatment, and placing the steel sleeve into the rear end cover shell for air cooling;
(7) and (3) front finish machining:
clamping the rear end cover through the process columns and the positioning holes determined in the machining requirement of the rear end cover, and machining the front side of the rear end cover by using a first machining center;
(8) and (3) fine machining of the back surface and the side surface:
and clamping the rear end cover with the front finish machining finished through the positioning hole and the positioning surface, and machining the back surface and the side surface by using a second machining center.
2. The method of processing of claim 1, wherein the step of performing the heat treatment further comprises a time limit for the heat treatment: keeping the temperature for at least 8 hours at the temperature of not less than 170 ℃.
3. The method of machining as defined in claim 1, wherein the step of hot pressing the steel sleeve further includes: and the unilateral interference magnitude when the steel sleeve is placed in the shell of the rear end cover is not more than 0.08 mm.
4. The method of machining as defined in claim 1, further comprising, after the step of hot pressing the steel sleeve: air cooling at normal temperature for 1-2 days.
5. The machining method according to claim 1, wherein the first machining center used in the front-side finishing step is a three-axis vertical machining center.
6. The machining method according to claim 1, wherein the step of reverse and side finishing uses a five-axis vertical machining center as the second machining center.
7. The process of claim 1, further comprising a step of post-treatment including deburring, aluminum chipping, or ultrasonic cleaning.
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| CN201910738818.6A CN110625333B (en) | 2019-08-10 | 2019-08-10 | Processing method of new energy rear end cover |
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| CN201910738818.6A CN110625333B (en) | 2019-08-10 | 2019-08-10 | Processing method of new energy rear end cover |
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| CN110625333B true CN110625333B (en) | 2021-05-14 |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0616862A1 (en) * | 1993-03-26 | 1994-09-28 | FARAL S.p.A. | A process for manufacturing radiator elements for central heating plants |
| CN101856784A (en) * | 2010-06-01 | 2010-10-13 | 辽宁忠旺集团有限公司 | Machining process of train body profile mold |
| CN104668925A (en) * | 2013-12-02 | 2015-06-03 | 昌河飞机工业（集团）有限责任公司 | Numerical control machining method of paper-based honeycomb part |
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