CN217319914U

CN217319914U - Positive and negative rim blank structure

Info

Publication number: CN217319914U
Application number: CN202220993795.0U
Authority: CN
Inventors: 夏旭平; 刘步蟾; 方琴; 冯娟; 崔昱
Original assignee: Zhangjiagang Today Precision Forging Co ltd
Current assignee: Zhangjiagang Today Precision Forging Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-30
Anticipated expiration: 2032-04-27

Abstract

The utility model provides a positive and negative rim blank structure, include: rim blank, the rim blank includes that rim one, rim two, indent section, spoke seat prepare protruding circle and spoke seat prepare the section, and rim one sets up rim blank lower extreme, rim blank upper end is equipped with rim two, rim one sets up with the rim symmetry, rim blank downside is equipped with spoke seat and prepares the section, the spoke seat prepares section lower extreme and a rim one upside smooth connection, compares with prior art, the utility model discloses following beneficial effect has: through setting up level and smooth cambered surface one for the spinning die of rim blank upside can be in the quick die stripping of spinning completion back, and the setting of level and smooth cambered surface one makes the spinning die of rim blank downside can be in the quick die stripping of spinning completion back, guarantees that rim blank and spinning die can separate smoothly, guarantees the overall structure performance of rim blank, promotes machining efficiency.

Description

Positive and negative rim blank structure

Technical Field

The utility model belongs to the technical field of the rim, in particular to positive and negative rim blank structure.

Background

The rim divide into forward rim and reverse rim two kinds, distinguishes at the different mounted position of rim according to the spoke, and at present, rim processing technology is complicated, and is casting shaping or two kinds of technologies of spinning forming usually, when adopting spinning technology to process forward rim or reverse rim with the forward rim blank, current forward rim blank is difficult for the demolding after the spinning, reduces production efficiency, consequently, needs a forward rim blank structure to solve above problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a positive and negative rim blank structure, the problem of proposing among the above-mentioned background art is solved to not enough that exist to prior art.

The utility model discloses a following technical scheme realizes: a positive and negative rim blank structure comprising: the rim blank, the rim blank includes that rim one, rim two, inner groove section, spoke seat prepare protruding circle and spoke seat prepare the section, and rim one sets up rim blank lower extreme, rim blank upper end is equipped with rim two, rim one sets up with the rim is symmetrical, rim blank downside is equipped with spoke seat and prepares the section, spoke seat prepares section lower extreme and a upside smooth connection of rim, and inner groove section sets up the spoke seat prepares section upside, inner groove section inboard is equipped with spoke seat and prepares the protruding circle, spoke seat prepares the protruding circle and is located spoke seat and prepares section upside, rim two downside with inner groove section upside smooth connection.

In a preferred embodiment, the second rim has the same structure as the rim, a first smooth ring groove is arranged between the first rim and the spoke seat preparation section, and the first rim and the spoke seat preparation section are smoothly connected through the smooth ring groove.

As a preferred embodiment, the second smooth ring groove is arranged between the second rim and the inner groove section, and the second rim and the inner groove section are in smooth connection through the second smooth ring groove.

In a preferred embodiment, the inner diameter of the spoke seat preparation section is gradually increased from top to bottom, and the wall thickness of the spoke seat preparation section is gradually decreased from top to bottom.

As a preferred embodiment, a smooth cambered surface two is arranged between the lower side of the spoke seat preparation convex ring and the inner side of the spoke seat preparation section, the inner side of the spoke seat preparation section and the lower side of the spoke seat preparation convex ring are smoothly connected through the smooth cambered surface, and the inner diameter of the smooth cambered surface two is gradually increased from top to bottom.

As a preferred implementation mode, a smooth cambered surface I is arranged between the inner side of the wheel rim II and the upper side of the wheel spoke seat preliminary convex ring, the upper side of the wheel spoke seat preliminary convex ring is smoothly connected with the inner side of the wheel rim II through a smooth cambered surface, and the inner diameter of the smooth cambered surface I is gradually increased from bottom to top.

After the technical scheme is adopted, the beneficial effects of the utility model are that: through setting up level and smooth cambered surface one for the spinning die of rim blank upside can be in the quick die stripping of spinning completion back, and the setting of level and smooth cambered surface one makes the spinning die of rim blank downside can be in the quick die stripping of spinning completion back, guarantees that rim blank and spinning die can separate smoothly, guarantees the overall structure performance of rim blank, promotes machining efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is the utility model relates to a positive and negative rim blank structure's overall structure schematic diagram.

Fig. 2 is the utility model relates to a schematic diagram of the front view of positive and negative rim blank structure.

Fig. 3 is the utility model relates to a schematic diagram of a positive and negative rim blank structure's section view.

In the figure, 1-wheel rim blank, 2-wheel rim I, 3-inner groove section, 4-wheel rim II, 5-smooth cambered surface I, 6-wheel spoke seat preparation convex ring, 7-round through hole, 8-wheel spoke seat preparation section, 9-smooth ring groove I, 10-smooth ring groove II and 11-smooth cambered surface II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a positive and negative rim blank structure comprising: rim blank 1, rim blank 1 includes rim one 2, rim two 4, interior indent section 3, the section 8 is prepared to protruding circle 6 and spoke seat in spoke seat preparation, rim one 2 sets up at rim blank 1 lower extreme, 1 upper end of rim blank is equipped with rim two 4, rim one 2 sets up with two 4 symmetries of rim, 1 downside of rim blank is equipped with the section 8 is prepared to the spoke seat, 8 lower extremes of the section and the one 2 upside smooth connection of rim are prepared to the spoke seat, interior indent section 3 sets up at the section 8 upsides of spoke seat preparation, 3 inboards of interior indent section are equipped with the protruding circle 6 of spoke seat preparation, spoke seat preparation protruding circle 6 is located the section 8 upsides of spoke seat preparation, rim two 4 downsides and 3 upside smooth connections of interior indent section.

The second wheel rim 4 is the same as the first wheel rim 2 in structure, a first smooth ring groove 9 is arranged between the first wheel rim 2 and the wheel spoke seat preparation section 8, the first wheel rim 2 and the wheel spoke seat preparation section 8 are smoothly connected through the first smooth ring groove 9, and the second wheel rim 4 and the first wheel rim 2 are arranged, so that when the wheel rim blank 1 is spun into a finished wheel rim, the tire can be positioned.

The second smooth ring groove 10 is arranged between the second wheel rim 4 and the inner groove section 3, the second wheel rim 4 and the inner groove section 3 are smoothly connected through the second smooth ring groove 10, and due to the existence of the second smooth ring groove 10, when the wheel rim blank 1 is spun into a finished wheel rim, the tire is convenient to mount.

The inner diameter of the spoke seat preparation section 8 is gradually increased from top to bottom, the wall thickness of the spoke seat preparation section 8 is gradually reduced from top to bottom, and the inner diameter of the spoke seat preparation section 8 is gradually increased from top to bottom.

The spoke seat prepares protruding circle 6 downside and spoke seat and prepares and be equipped with two 11 smooth cambered surfaces between the section 8 inboards, and the spoke seat prepares section 8 inboards and spoke seat prepares protruding circle 6 downside and passes through two 11 smooth connections of smooth cambered surface, and the internal diameter top-down of two 11 smooth cambered surfaces increases gradually, and the setting of protruding circle 6 is prepared to the spoke seat, and when rim blank 1 processed into forward rim, the spoke seat prepares protruding circle 6 and is processed into the spoke seat.

The wheel rim two 4 inboards and the wheel spoke seat prepare and are equipped with smooth cambered surface one 5 between the 6 upside of convex circle, the wheel spoke seat prepares 6 upsides of convex circle and wheel rim two 4 inboards through smooth cambered surface one 5 smooth connection, smooth cambered surface one 5's internal diameter is crescent from bottom to top, when actual spinning, because the wheel spoke seat prepares 6 upsides of convex circle and wheel rim two 4 inboards through smooth cambered surface one 5 smooth connection, this makes things convenient for spinning die to carry out the demolding after the spinning is accomplished, guarantee off-the-shelf overall structure intensity.

As an embodiment of the present invention: when in actual use, when the rim blank 1 needs to be processed into a forward rim, the rim blank 1 is placed on an external spinning die for processing, the upper die of the spinning die is matched with the lower die to spin the rim blank 1, at the moment, under the spinning action of the external spinning die, the spoke seat preparation convex ring 6 on the upper side of the inner wall of the rim blank 1 gradually becomes a spoke seat of the forward rim and is used for fixing a spoke, when the rim blank 1 needs to be processed into a reverse rim, the spoke seat preparation section 8 on the lower side of the rim blank 1 gradually becomes a spoke seat of the reverse rim under the spinning action of the external spinning die, after the spinning processing of the rim blank 1 is completed, the upper die and the lower die on the spinning die need to be separated from the rim blank 1 for demoulding, and because the upper side of the spoke seat preparation convex ring 6 is smoothly connected with the inner side of a rim two 4 through a smooth cambered surface I5, and the spoke seat prepares section 8 inboard and spoke seat prepares protruding circle 6 downside through two 11 smooth connections of level and smooth cambered surface, this makes the last mould and the bed die of spinning mould can move back the mould smoothly after the spinning is accomplished, guarantees off-the-shelf overall structure intensity, has also avoided the problem that machining efficiency is low that the drawing of patterns difficulty brought simultaneously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A positive and negative rim blank structure comprising: the wheel rim blank (1) is characterized in that the wheel rim blank (1) comprises a wheel rim I (2), a wheel rim II (4), an inner concave groove section (3), a wheel spoke seat preparation convex ring (6) and a wheel spoke seat preparation section (8), the lower end of the rim blank (1) is provided with a first wheel flange (2), the upper end of the rim blank (1) is provided with a second wheel flange (4), the wheel rim I (2) and the wheel rim II (4) are symmetrically arranged, a spoke seat preparation section (8) is arranged at the lower side of the wheel rim blank (1), the lower end of the spoke seat preparation section (8) is smoothly connected with the upper side of the wheel rim I (2), an inner groove section (3) is arranged on the upper side of the spoke seat preparation section (8), a spoke seat preparation convex ring (6) is arranged on the inner side of the inner groove section (3), the spoke seat preparation convex ring (6) is positioned on the upper side of the spoke seat preparation section (8), the upper side of the inner groove section (3) is smoothly connected with the lower side of the second wheel rim (4).

2. The structure of a positive and negative rim blank as claimed in claim 1, wherein: the wheel rim (2) is the same as the wheel rim (4), a smooth ring groove (9) is arranged between the wheel rim (2) and the wheel spoke seat preparation section (8), and the wheel rim (2) and the wheel spoke seat preparation section (8) are smoothly connected through the smooth ring groove (9).

3. The structure of claim 1, wherein the front and back rim blank is formed by: and a second smooth ring groove (10) is arranged between the second wheel rim (4) and the inner groove section (3), and the second wheel rim (4) and the inner groove section (3) are smoothly connected through the second smooth ring groove (10).

4. The structure of a positive and negative rim blank as claimed in claim 1, wherein: the inner diameter of the spoke seat preparation section (8) is gradually increased from top to bottom, and the wall thickness of the spoke seat preparation section (8) is gradually reduced from top to bottom.

5. The front and back rim blank structure of claim 4, wherein: the spoke seat prepares section (8) inboard and spoke seat and prepares between protruding circle (6) downside and be equipped with smooth cambered surface two (11), the spoke seat prepares section (8) inboard and spoke seat prepares protruding circle (6) downside and passes through smooth cambered surface two (11) smooth connection, the internal diameter top-down of smooth cambered surface two (11) increases gradually.

6. The structure of claim 1, wherein the front and back rim blank is formed by: the spoke seat prepares and is equipped with smooth cambered surface (5) between protruding circle (6) upside and rim two (4) inboards, spoke seat prepares protruding circle (6) upside and rim two (4) inboards and passes through smooth cambered surface (5) smooth connection, the internal diameter of smooth cambered surface (5) is crescent from bottom to top.