CN217018242U

CN217018242U - Forming die for manufacturing wheel rim

Info

Publication number: CN217018242U
Application number: CN202123452696.6U
Authority: CN
Inventors: 金向勇; 熊东东; 丁容
Original assignee: Zhejiang Jingu Co Ltd
Current assignee: Zhejiang Jingu Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-22
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a forming die for manufacturing a rim, which comprises a base, a forming structure, a sealing end cover and an inflation pipeline, wherein the forming structure is connected with the base, the forming structure is provided with a containing cavity for containing a cylindrical rim base material, and a mold core for forming the peripheral surface of the rim base material is convexly arranged on the wall surface of the containing cavity; the sealing end cover is arranged at the cavity opening of the accommodating cavity to seal the accommodating cavity; one end of the inflation pipeline is communicated with the accommodating cavity, and the other end of the inflation pipeline is communicated with an external high-pressure air source. The utility model solves the problems that the technical process of the rim in the prior art is more complicated and the processing and manufacturing efficiency of the rim cannot be ensured.

Description

Forming die for manufacturing wheel rim

Technical Field

The utility model relates to the technical field of rim forming, in particular to a forming die for manufacturing a rim.

Background

In the prior art, a method for manufacturing a rim generally includes the steps of rolling a plate-shaped blank to form a cylindrical rim base material, then performing flaring operation on the rim base material, and rolling and forming the outer peripheral surface of the rim base material subjected to the flaring operation by using a roller forming machine.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a forming die for manufacturing a rim, and aims to solve the problems that the process of a rim technician in the prior art is complicated and the processing and manufacturing efficiency of the rim cannot be ensured.

In order to achieve the purpose, the utility model provides a forming die for manufacturing a rim, which comprises a base, a forming structure, a sealing end cover and an inflation pipeline, wherein the forming structure is connected with the base, the forming structure is provided with a containing cavity for containing a cylindrical rim base material, and a mold core for forming the peripheral surface of the rim base material is convexly arranged on the cavity wall surface of the containing cavity; the sealing end cover is arranged at the cavity opening of the accommodating cavity to seal the accommodating cavity; one end of the inflation pipeline is communicated with the accommodating cavity, and the other end of the inflation pipeline is communicated with an external high-pressure air source.

Further, the shaping structure is cyclic annular, is annular shaping structure and includes two at least shaping pieces, each shaping piece all with base swing joint to make each shaping piece all have along the radial inward movement of shaping structure in order to enclose the operating position who holds the chamber, and each shaping piece all has along the radial outward movement of shaping structure in order to dodge the position of dodging of rim substrate.

Furthermore, two sealing end covers are arranged, and the two sealing end covers are respectively arranged at the cavity openings at the two axial ends of the forming structure in a covering mode.

Further, the core is a plurality of, and a plurality of cores are arranged along the axial of molding structure at intervals.

Further, the contour of each core is the same.

Further, the outer contour of at least one of the plurality of cores may be different from the outer contours of the remaining cores.

Further, the molding structure is provided with an overflowing cavity, and a cooling liquid inlet and a cooling liquid outlet which are communicated with the overflowing cavity, wherein the cooling liquid inlet is communicated with an external cooling liquid source, and the cooling liquid outlet is communicated with an external drainage pipeline.

Further, the overflowing cavity is arranged along the axial extension of the forming structure.

Further, the overflowing cavity is a plurality of, and a plurality of overflowing cavities are arranged around the circumference of the forming structure at intervals.

Further, the overflowing cavity extends along the axial direction of the forming structure and simultaneously extends along the circumferential direction of the forming structure.

The technical scheme of the utility model is applied, the forming die for manufacturing the rim is provided, the cylindrical rim base material is placed in the containing cavity of the forming structure, the containing cavity is sealed by the sealing end cover, high-pressure gas is filled into the containing cavity through the gas filling pipeline, the rim base material in the containing cavity is expanded in a high-pressure environment, the peripheral surface of the rim base material is tightly attached to the mold core, and thermoforming is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows a schematic structural diagram of a forming die for manufacturing a rim according to an alternative embodiment of the utility model.

Wherein the figures include the following reference numerals:

1. a rim base material; 10. a base; 20. forming a structure; 21. an accommodating chamber; 211. a core; 22. forming a block; 23. a flow-through chamber; 24. a coolant inlet; 25. a coolant outlet; 30. and sealing the end cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

The utility model provides a forming die for manufacturing a rim, and aims to solve the problems that the technical process of the rim in the prior art is complex and cannot ensure the processing and manufacturing efficiency of the rim.

As shown in fig. 1, a forming die for manufacturing a rim comprises a base 10, a forming structure 20, a sealing end cover 30 and an inflation pipeline, wherein the forming structure 20 is connected with the base 10, the forming structure 20 is provided with a containing cavity 21 for containing a cylindrical rim base material 1, and a mold core 211 for forming the outer peripheral surface of the rim base material 1 is convexly arranged on the cavity wall surface of the containing cavity 21; the sealing end cover 30 covers the opening of the accommodating cavity 21 to close the accommodating cavity 21; one end of the inflation pipeline is communicated with the accommodating cavity 21, and the other end of the inflation pipeline is communicated with an external high-pressure air source.

The application provides a forming die of preparation rim, place the holding chamber 21 of forming structure 20 in through the rim substrate 1 that will be the tube-shape in, and hold chamber 21 with end cover 30 closure, the rethread inflation pipeline is filled into high temperature to holding chamber 21, high-pressure gas, wherein, high temperature is used for heating rim substrate 1, make it be in the high temperature state, realize the expansion of rim substrate 1 and the outer peripheral face of rim substrate 1 and core 211 through high-pressure gas and hug closely and realize thermoforming, comparatively convenient and fast in the whole process, and required equipment is less, furthermore, the structural strength of the rim that the forming die who produces through this application provided is greater than the structural strength of the rim that produces through current conventional technology far away, and the attenuate rate in the rim forming process has also obtained effective control.

In the present application, before the high-pressure gas is introduced into the accommodating chamber 21, the high-temperature gas is introduced for 3 to 10 minutes to preheat the rim base material 1.

Of course, the rim base material 1 may be preheated on other heating equipment, and the preheated rim base material 1 may be placed in the accommodating chamber 21.

It should be noted that, in the present application, the forming structure 20 is annular, the annular forming structure 20 includes at least two forming blocks 22, each forming block 22 is movably connected to the base 10, so that each forming block 22 has an operating position moving radially inward along the forming structure 20 to enclose the accommodating cavity 21, and each forming block 22 has an avoiding position moving radially outward along the forming structure 20 to avoid the rim base material 1. In this way, by moving each molding block 22 to the avoiding position, an operation space is reserved for mounting the cylindrical rim base material 1, and the mounting convenience of the cylindrical rim base material 1 is ensured.

As shown in fig. 1, the forming structure 20 includes two forming blocks 22, and each of the two forming blocks 22 has a semicircular ring shape.

It should be noted that, in the present application, considering that the molding structure 20 includes at least two molding blocks 22, that is, both axial ends of the accommodating cavity 21 are open, in order to ensure the sealing reliability of the accommodating cavity 21, as shown in fig. 1, two sealing end covers 30 are provided, and the two sealing end covers 30 are respectively disposed at the cavity openings at both axial ends of the molding structure 20. In this way, the two sealing end covers 30 can be ensured to effectively seal the accommodating cavity 21, so that the high-pressure gas filled subsequently cannot leak.

As shown in fig. 1, the plurality of cores 211 is provided, and the plurality of cores 211 are arranged at intervals in the axial direction of the molding structure 20. Thus, the outer peripheral surfaces of the plurality of rims can be formed at one time by the forming die, and after the thermal forming of the outer peripheral surfaces of the rims is finished, the rims are cut through laser so as to complete the thermal forming of the plurality of rims at one time.

Alternatively, the profile of each core 211 is the same. Thus, the thermal forming of the outer peripheral surfaces of a plurality of rims of the same type can be realized at one time by the forming die.

Of course, the outer contour of at least one of the plurality of cores 211 is different from the outer contour of the remaining cores 211. Like this, ensure that forming die can once only realize the thermoforming of the outer peripheral face of a plurality of rims of different models, promoted forming die's application scope greatly.

As shown in fig. 1, the molding structure 20 has a flow-through cavity 23, and a cooling liquid inlet 24 and a cooling liquid outlet 25 which are communicated with the flow-through cavity 23, wherein the cooling liquid inlet 24 is communicated with an external cooling liquid source, and the cooling liquid outlet 25 is communicated with an external drain line. Thus, after the outer peripheral surface of the rim is subjected to thermoforming, the cooling liquid is continuously introduced into the overflowing cavity 23, so that the cooling liquid can exchange heat with the forming structure 20 in time, and the outer peripheral surface of the rim is attached to the mold core 211 and exchanges heat with the rim, so that the purpose of cooling the rim is achieved, the material of the rim is converted from ferrite into a martensite structure, and the material strength of the rim is increased to 1300MPa or above from 400MPa when the rim base material 1 is used.

Optionally, the flow-through cavity 23 is arranged along the axial extension of the forming structure 20. In this way, it is ensured that the cooling fluid passing through the flow-through chamber 23 can take away the heat from the forming structure 20 in a timely manner.

Optionally, the flow-passing cavities 23 are multiple, the multiple flow-passing cavities 23 are arranged at intervals in the circumferential direction of the forming structure 20, the cooling liquid inlets 24 and the cooling liquid outlets 25 are multiple, and the multiple cooling liquid inlets 24 and the multiple cooling liquid outlets 25 are all arranged in one-to-one correspondence with the multiple flow-passing cavities 23. In this way, it is ensured that the overflowing cavities 23 can be spread over the outer peripheral surface of the formed rim as much as possible, and further, it is ensured that the flowing cooling liquid continuously filled into the overflowing cavities 23 at the same time can perform effective heat exchange with the formed rim, that is, the heat exchange area is increased.

Alternatively, the flow-through cavity 23 extends in the axial direction of the molding structure 20 while extending in the circumferential direction of the molding structure 20. In this way, it is ensured that the overflow cavity 23 on the same forming block 22 is a complete one, and the heat exchange area is increased, so as to ensure that the cooling liquid can effectively exchange heat with the formed rim.

The flow-through cavities 23 are all formed in the molding block 22.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative 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 a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

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

Claims

1. A forming die for manufacturing a rim is characterized by comprising:

a base (10);

the forming structure (20) is connected with the base (10), the forming structure (20) is provided with a containing cavity (21) used for containing the cylindrical rim base material (1), and a mold core (211) used for forming the outer peripheral surface of the rim base material (1) is arranged on the cavity wall surface of the containing cavity (21) in a protruding mode;

the sealing end cover (30) is arranged at the cavity opening of the accommodating cavity (21) in a covering mode, so that the accommodating cavity (21) is closed;

and one end of the inflation pipeline is communicated with the accommodating cavity (21), and the other end of the inflation pipeline is communicated with an external high-pressure air source.

2. The forming die according to claim 1, characterized in that the forming structure (20) is annular, the annular forming structure (20) comprises at least two forming blocks (22), each forming block (22) is movably connected with the base (10) so that each forming block (22) has an operating position moving radially inwards of the forming structure (20) to enclose the receiving cavity (21), and each forming block (22) has an avoiding position moving radially outwards of the forming structure (20) to avoid the rim base material (1).

3. The forming die according to claim 2, characterized in that the number of the end sealing covers (30) is two, and the two end sealing covers (30) are respectively arranged at the cavities at the two axial ends of the forming structure (20).

4. The molding die according to claim 1, wherein the core (211) is plural, and plural cores (211) are provided at intervals in an axial direction of the molding structure (20).

5. The forming die according to claim 4, characterized in that the profile of each core (211) is identical.

6. The forming die of claim 4, characterized in that at least one of said cores (211) of a plurality of said cores (211) has an outer contour that is different from the outer contour of the remaining cores (211).

7. The forming die according to any one of claims 1 to 6, characterized in that the forming structure (20) has an overflow chamber (23) and a cooling liquid inlet (24) and a cooling liquid outlet (25) communicating with the overflow chamber (23), wherein the cooling liquid inlet (24) communicates with an external cooling liquid source and the cooling liquid outlet (25) communicates with an external drain line.

8. The forming die according to claim 7, characterized in that the flow-through cavity (23) is arranged along an axial extension of the forming structure (20).

9. The forming die of claim 7, characterized in that the flow-through cavity (23) is plural, and the flow-through cavities (23) are arranged at intervals around the circumference of the forming structure (20).

10. The forming die according to claim 7, characterized in that the flow-through cavity (23) extends in the axial direction of the forming structure (20) while being arranged in the circumferential extension of the forming structure (20).