阅读说明：本技术 车架制造方法及摩托车车架 (Frame manufacturing method and motorcycle frame ) 是由 张业军 陈一鸣 于 2021-06-24 设计创作，主要内容包括：本申请公开了一种车架制造方法及摩托车车架。该车架制造方法包括：通过精密铸造完成铸件铸造；通过数控机床完成部件加工；通过焊台完成部件焊接。本申请解决了车架模具多、车架总成焊缝多,开发费用较高、不美观,且车架强度不够,易变形的技术问题。(The application discloses a frame manufacturing method and a motorcycle frame. The frame manufacturing method comprises the following steps: finishing casting of a casting through precision casting; finishing the part processing by a numerical control machine tool; and completing the welding of the parts through the welding table. The application solves the technical problems that the frame mold is multiple, the frame assembly has multiple welding lines, the development cost is higher, the appearance is not attractive, the frame strength is not enough, and the frame is easy to deform.)

1. A method of manufacturing a vehicle frame, comprising:

finishing casting of a casting through precision casting;

finishing the part processing by a numerical control machine tool;

and completing the welding of the parts through the welding table.

2. The method of manufacturing a vehicle frame of claim 1, wherein the casting of the casting by precision casting comprises:

manufacturing a mold core cavity according to the designed three-dimensional data;

manufacturing a mold core through a mold core cavity;

manufacturing a shell according to the mold core;

casting and corresponding post-treatment are carried out by using the shell to obtain a casting; the casting includes: the combined casting comprises a vehicle head casting, a support combined casting and a shaft sleeve combined casting.

3. The method of manufacturing a vehicle frame of claim 1, wherein completing the part machining by the numerically controlled machine tool comprises:

putting a corresponding casting in a numerical control machine tool or a multi-axis machining center through a tool for machining to obtain a component; the component includes: the front support assembly comprises a head component, a front support assembly and a shaft sleeve assembly.

4. The method of manufacturing a vehicle frame of claim 3, wherein said front support assembly comprises: the front upper rod, the front lower rod, the oblique reinforcing rod integrally formed with the front upper rod and the front lower rod, the front oblique stay bar and the front oblique stay reinforcing rod are supported under the front lower rod.

5. The method of manufacturing a vehicle frame of claim 4, wherein said bushing assembly comprises: the cross rod positioning shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a first shaft sleeve connecting rod, the engine mounting shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a second shaft sleeve connecting rod, the suspension shaft sleeve is integrally formed with the mounting shaft sleeve through a second shaft sleeve connecting rod, the bottom fork mounting shaft sleeve is integrally formed with the suspension shaft sleeve through a third shaft sleeve connecting rod, and the bottom fork mounting shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a fourth shaft sleeve connecting rod.

6. The method of manufacturing a vehicle frame of claim 5, wherein completing the welding of the components by the weld station comprises:

positioning a head component, a front support combined component and a shaft sleeve combined component by adopting a first welding clamp structure;

the front end of the front upper rod and the front end of the front lower rod of the front support combined component are welded with the head part through the welding table, and the transverse rod positioning shaft sleeve and the engine mounting shaft sleeve of the shaft sleeve combined component are welded to the rear ends of the front upper rod and the front lower rod of the front support combined component.

7. The method of manufacturing a vehicle frame of claim 6, wherein said first weld fixture structure comprises: the mounting platform and the front end positioning structures of the front upper rod and the front lower rod are arranged on the mounting platform, a plurality of mounting holes are arranged on the upper surface and the circumferential side surface of the mounting platform according to a fixed-pitch array, and the front end positioning structures of the front upper rod and the front lower rod are fixedly mounted on the mounting platform and are integrally long-strip-shaped; the welding jig structure further includes: and the upper component welding clamp structure, the middle component welding clamp structure and the lower component welding clamp structure are fixedly installed on the installation platform and are positioned on the same side of the front end positioning structure of the front upper rod and the front lower rod in the length direction.

8. The method of manufacturing a vehicle frame of claim 3, said component further comprising: a rear support assembly, the rear support assembly comprising: the rear upper rod, the rear lower rod and the transverse connecting rod arranged between the rear upper rod and the rear lower rod.

9. The method of manufacturing a vehicle frame of claim 8, wherein completing the welding of the components by the weld station further comprises:

the second welding fixture structure is adopted for positioning and then supporting the combined component;

and welding the rear support assembly to the shaft sleeve assembly through the welding table.

10. A motorcycle frame, comprising: the front support assembly is welded with the front support assembly, the front support assembly is welded with the shaft sleeve assembly, and the shaft sleeve assembly is welded with the rear support assembly.

Technical Field

The application relates to the field of frame manufacturing, in particular to a frame manufacturing method and a motorcycle frame.

Background

The inventor finds that the frame is limited by the molding of the rod material and the plate material and needs to be molded and welded in sections, so that the frame has more molds, more welding seams of the frame assembly, higher development cost, unattractive appearance, insufficient strength and easy deformation.

Aiming at the problems of more frame molds, more frame assembly welding seams, higher development cost, unattractive appearance, insufficient frame strength and easy deformation in the prior art, an effective solution is not provided at present.

Disclosure of Invention

The main purpose of the application is to provide a frame manufacturing method, which aims to solve the problems of more frame molds, more frame assembly welding seams, higher development cost, unattractive appearance, insufficient frame strength and easy deformation.

To achieve the above object, according to one aspect of the present application, a method of manufacturing a vehicle frame is provided.

The frame manufacturing method according to the application comprises the following steps: finishing casting of a casting through precision casting; finishing the part processing by a numerical control machine tool; and completing the welding of the parts through the welding table.

Further, the casting of the casting by precision casting includes: manufacturing a mold core cavity according to the designed three-dimensional data; manufacturing a mold core through a mold core cavity; manufacturing a shell according to the mold core; casting and corresponding post-treatment are carried out by using the shell to obtain a casting; the casting includes: the combined casting comprises a vehicle head casting, a support combined casting and a shaft sleeve combined casting.

Further, the finishing of the part by the numerical control machine tool includes: putting a corresponding casting in a numerical control machine tool or a multi-axis machining center through a tool for machining to obtain a component; the component includes: the front support assembly comprises a head component, a front support assembly and a shaft sleeve assembly.

Further, the front support assembly includes: the front upper rod, the front lower rod, the oblique reinforcing rod integrally formed with the front upper rod and the front lower rod, the front oblique stay bar and the front oblique stay reinforcing rod are supported under the front lower rod.

Further, the bushing assembly includes: the cross rod positioning shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a first shaft sleeve connecting rod, the engine mounting shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a second shaft sleeve connecting rod, the suspension shaft sleeve is integrally formed with the mounting shaft sleeve through a second shaft sleeve connecting rod, the bottom fork mounting shaft sleeve is integrally formed with the suspension shaft sleeve through a third shaft sleeve connecting rod, and the bottom fork mounting shaft sleeve is integrally formed with the cross rod positioning shaft sleeve through a fourth shaft sleeve connecting rod.

Further, completing the welding of the parts by the welding station comprises: positioning a head component, a front support combined component and a shaft sleeve combined component by adopting a first welding clamp structure; the front end of the front upper rod and the front end of the front lower rod of the front support combined component are welded with the head part through the welding table, and the transverse rod positioning shaft sleeve and the engine mounting shaft sleeve of the shaft sleeve combined component are welded to the rear ends of the front upper rod and the front lower rod of the front support combined component.

Further, the first welding jig structure includes: the mounting platform and the front end positioning structures of the front upper rod and the front lower rod are arranged on the mounting platform, a plurality of mounting holes are arranged on the upper surface and the circumferential side surface of the mounting platform according to a fixed-pitch array, and the front end positioning structures of the front upper rod and the front lower rod are fixedly mounted on the mounting platform and are integrally long-strip-shaped; the welding jig structure further includes: and the upper component welding clamp structure, the middle component welding clamp structure and the lower component welding clamp structure are fixedly installed on the installation platform and are positioned on the same side of the front end positioning structure of the front upper rod and the front lower rod in the length direction.

Further, the component further comprises: a rear support assembly, the rear support assembly comprising: the rear upper rod, the rear lower rod and the transverse connecting rod arranged between the rear upper rod and the rear lower rod.

Further, completing the welding of the parts by the welding station further comprises: the second welding fixture structure is adopted for positioning and then supporting the combined component; and welding the rear support assembly to the shaft sleeve assembly through the welding table.

To achieve the above object, according to another aspect of the present application, there is provided a motorcycle frame.

A motorcycle frame according to the present application includes: the front support assembly is welded with the front support assembly, the front support assembly is welded with the shaft sleeve assembly, and the shaft sleeve assembly is welded with the rear support assembly.

In the embodiment of the application, casting of the casting is finished through precision casting by adopting a casting, machining and welding mode; finishing the part processing by a numerical control machine tool; completing welding of the parts through a welding table; the purpose of reducing the number of the component modules forming the frame as much as possible is achieved, so that the technical effects of reducing moulds and welding lines, reducing development cost, improving attractiveness, effectively improving frame strength and preventing deformation are achieved, and the technical problems that the number of frame moulds is large, the number of welding lines of a frame assembly is large, the development cost is high, the frame assembly is not attractive, the frame strength is not enough and the frame assembly is easy to deform are solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic flow diagram of a method of manufacturing a vehicle frame according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a front support assembly according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a bushing assembly according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a rear support assembly according to an embodiment of the present application;

fig. 5 is a schematic structural view of a motorcycle frame according to an embodiment of the present application.

1. A head component; 2. a front support assembly; 3. a shaft sleeve assembly; 4. a rear support assembly; 21. a front upper rod; 22. a front lower rod; 23. an oblique reinforcing rod; 24. a front diagonal brace rod; 25. a front diagonal brace stiffener; 31. a cross bar positioning shaft sleeve; 32. a first shaft sleeve connecting rod; 33. an engine mounting shaft sleeve; 34. a second shaft sleeve connecting rod; 35. a suspension shaft sleeve; 36. a third shaft sleeve connecting rod; 37. a shaft sleeve is arranged on the bottom fork; 38. the fourth shaft sleeve is connected with a connecting rod; 41. a rear upper rod; 42. a rear lower rod; 43. a transverse connecting rod.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, 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 only partial 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.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," "integrally formed," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening media, or may be internal to, or in communication between, two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-5, the present application relates to a method of manufacturing a vehicle frame, the method comprising the steps of:

s001, casting a casting through precision casting;

according to an embodiment of the present invention, preferably, the casting of the casting by precision casting includes:

manufacturing a mold core cavity according to the designed three-dimensional data;

manufacturing a mold core through a mold core cavity;

manufacturing a shell according to the mold core;

casting and corresponding post-treatment are carried out by using the shell to obtain a casting; the casting includes: the combined casting comprises a vehicle head casting, a support combined casting and a shaft sleeve combined casting.

The method comprises the steps of designing three-dimensional data of a mold core cavity of each casting in advance, manufacturing the mold core cavity according to the designed three-dimensional data, manufacturing a mold core through the mold core cavity, manufacturing a shell according to the mold core, and finally casting a headstock casting, a support combined casting and a shaft sleeve combined casting by adopting the shell. In some examples, the rear support assembly 4 is also cast using a shell.

In the embodiment, only four castings are required to be manufactured, the four castings comprise all parts of the frame precursor, and the parts between the castings are of an integrally formed structure due to the casting, so that welding can be greatly reduced, and welding seams are few; the number of the castings corresponds to the number of the die core cavities, the die cores and the shell, so that the number of the castings is reduced, and the number of required dies is greatly reduced; and then the strength of the frame is improved, and the frame is easy to deform.

S002, finishing the part machining through a numerical control machine tool;

according to the embodiment of the present invention, preferably, the machining of the part by the numerical control machine includes:

putting a corresponding casting in a numerical control machine tool or a multi-axis machining center through a tool for machining to obtain a component; the component includes: a head unit 1, a front support assembly 2 and a sleeve assembly 3.

The surface, the size precision and the like of the casting can not meet the requirements of the frame, therefore, the surface treatment and the size processing are required to be carried out by a numerical control machine tool or a multi-axis machining center, so that the head casting, the support combined casting and the shaft sleeve combined casting can meet the requirements; the required components are called a head component 1, a front support combined component 2 and a shaft sleeve combined component 3.

In this embodiment, the front support assembly 2 includes: a front upper bar 21, a front lower bar 22, a diagonal reinforcement bar 23 integrally formed with the front upper bar 21 and the front lower bar 22, a front diagonal brace 23 and a front diagonal brace reinforcement bar 25 supported below the front lower bar 22. Through casting, the front upper rod 21, the front lower rod 22, the oblique reinforcing rod 23, the front oblique brace 23 and the front oblique brace reinforcing rod 25 are cast into the integrally formed front support combined component 2, compared with the traditional method, welding is not needed to be carried out between every two rods, the welding quantity is greatly reduced, welding seams are reduced, and therefore the strength of the frame can be effectively improved; meanwhile, the front support combined component 2 can be cast only by one corresponding mold core cavity, mold core and mold shell, and each rod piece needs a corresponding mold in the prior art.

In this embodiment, the bushing assembly 3 includes: the cross bar positioning shaft sleeve 31, the engine mounting shaft sleeve 33 formed integrally with the cross bar positioning shaft sleeve 31 through the first shaft sleeve connecting rod 32, the suspension shaft sleeve 35 formed integrally with the mounting shaft sleeve through the second shaft sleeve connecting rod 34, the bottom fork mounting shaft sleeve 37 formed integrally with the suspension shaft sleeve 35 through the third shaft sleeve connecting rod 36, and the bottom fork mounting shaft sleeve 37 formed integrally with the cross bar positioning shaft sleeve 31 through the fourth shaft sleeve connecting rod 38. Through casting, the cross rod positioning shaft sleeve 31, the first shaft sleeve connecting rod 32, the engine mounting shaft sleeve 33, the second shaft sleeve connecting rod 34, the suspension shaft sleeve 35, the third shaft sleeve connecting rod 36, the bottom fork mounting shaft sleeve 37 and the fourth shaft sleeve connecting rod 38 are cast into the integrally formed shaft sleeve combined component 3, compared with the traditional method, the welding between the rod piece and the shaft sleeve is not needed, the welding quantity is greatly reduced, the welding seam is reduced, and therefore the strength of the frame can be effectively improved; meanwhile, the shaft sleeve combined part 3 can be cast only by one corresponding mold core cavity, mold core and mold shell, and each rod piece and each shaft sleeve are required to be provided with corresponding molds in the prior art.

In this embodiment, the rear support assembly 4 includes: a rear upper bar 41, a rear lower bar 42, and a transverse connecting bar 43 disposed between the rear upper bar 41 and the rear lower bar 42. Through casting, the rear upper rod 41, the rear lower rod 42 and the transverse connecting rod 43 are cast into the integrally formed rear support combined component 4, compared with the traditional method, the welding between rod pieces is not needed, the welding quantity is greatly reduced, the welding seams are reduced, and therefore the strength of the frame can be effectively improved; meanwhile, the shaft sleeve combined part 3 can be cast only by one corresponding mold core cavity, mold core and mold shell, and each rod piece needs a corresponding mold in the prior art.

And step S003, completing the welding of the parts through the welding table.

According to the embodiment of the present invention, it is preferable that the performing of the welding of the parts by the welding station includes:

positioning a head component 1, a front support combined component 2 and a shaft sleeve combined component 3 by adopting a first welding clamp structure;

the head member 1 is welded to the front ends of the front upper bar 21 and the front lower bar 22 of the front support assembly 2 by a welding station, and the cross bar positioning boss 31 and the engine mounting boss 33 of the boss assembly 3 are welded to the rear ends of the front upper bar 21 and the front lower bar 22 of the front support assembly 2.

Before welding, the machined lathe head component 1, the front support combined component 2 and the shaft sleeve combined component 3 need to be fixed through a first welding clamp structure, so that the components are prevented from moving in the welding process and the welding effect is prevented from being influenced; specifically, the first welding jig structure can fix the head part 1 to the front ends of the front upper rod 21 and the front lower rod 22 of the front support assembly 2, and then fix the cross rod positioning bushing 31 and the engine mounting bushing 33 of the bushing assembly 3 to the rear ends of the front upper rod 21 and the front lower rod 22 of the front support assembly 2, so that welding can be performed at the front end positions of the front upper rod 21 and the front lower rod 22 and the rear end positions of the front upper rod 21 and the front lower rod 22, and welding of the frame precursor is realized; the welding positions are greatly reduced, welding seams are reduced, and the strength of the frame is improved.

In this embodiment, preferably, the first welding jig structure includes: the mounting platform and the front end positioning structures of the front upper rod 21 and the front lower rod 22 are arranged, a plurality of mounting holes are arranged on the upper surface and the circumferential side surface of the mounting platform according to a fixed-interval array, and the front end positioning structures of the front upper rod 21 and the front lower rod 22 are fixedly mounted on the mounting platform and are integrally long-strip-shaped; the welding jig structure further includes: and the upper component welding clamp structure, the middle component welding clamp structure and the lower component welding clamp structure are fixedly installed on the installation platform and are positioned on the same side of the front end positioning structure of the front upper rod 21 and the front lower rod 22 in the length direction. The frame is positioned through the front end positioning structure, and the welding of the head component 1, the front support combined component 2 and the shaft sleeve combined component 3 is realized through the upper component welding clamp structure, the middle component welding clamp structure and the lower component welding clamp structure.

According to the embodiment of the present invention, it is preferable that the performing of the welding of the parts by the welding station includes:

the second welding fixture structure is adopted for positioning and then supporting the combined component 4;

the rear car support assembly 4 is welded to the sleeve assembly 3 by a welding table.

Before welding, the machined rear support combined component 4 needs to be fixed through a second welding clamp structure, so that the components are prevented from moving in the welding process and the welding effect is prevented from being influenced; specifically, the second welding jig structure can fix the rear support combined member 4 to the positions of the rear ends of the front upper bar 21 and the front lower bar 22 near the shaft sleeves; therefore, the rear ends of the front upper rod 21 and the front lower rod 22 can be welded at the positions close to the shaft sleeves, and the welding of the rear body and the front body of the frame is realized; the welding positions are greatly reduced, welding seams are reduced, and the strength of the frame is improved.

From the above description, it can be seen that the following technical effects are achieved by the present application:

in the embodiment of the application, casting of the casting is finished through precision casting by adopting a casting, machining and welding mode; finishing the part processing by a numerical control machine tool; completing welding of the parts through a welding table; the purpose of reducing the number of the component modules forming the frame as much as possible is achieved, so that the technical effects of reducing moulds and welding lines, reducing development cost, improving attractiveness, effectively improving frame strength and preventing deformation are achieved, and the technical problems that the number of frame moulds is large, the number of welding lines of a frame assembly is large, the development cost is high, the frame assembly is not attractive, the frame strength is not enough and the frame assembly is easy to deform are solved.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.