Automobile rim flaring die set

Abstract

The utility model relates to an automobile rim flaring die set, and relates to the field of wheel machining. The flaring die set for the automobile rim comprises a first flaring expanding die and a second flaring expanding die, and the first flaring expanding die and the second flaring expanding die are used for machining the rim in sequence; the first flaring expanding die comprises a first upper die, a first lower die and a first fixed die; the first fixed die is detachably arranged on the first lower die; the first upper die and the first lower die are used for clamping a rim, and the first upper die can move in a reciprocating mode relative to the first lower die in the first direction and can abut against the first lower die so that the rim can be flaring and expanded; the second flaring expanding die comprises a second upper die, a second lower die, a third lower die and a second fixed die; the second fixed die is detachably arranged on the second lower die; the second lower die is detachably arranged on the third lower die; the second upper die and the second lower die are used for clamping the rim machined by the first flaring and expanding die, and the second upper die can move in a reciprocating mode relative to the second lower die in the second direction and can abut against the second lower die so that the rim can be subjected to secondary flaring and expanding. Through secondary flaring and expanding, the problem of deformation of the rim in the spinning process can be solved, production of rims of different models is achieved, the production efficiency and the product performance are improved, the die design structure is simple, and the production cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of wheel processing, specifically relating to a flaring mold assembly for automobile wheel rims. Background Technology

[0002] Two-piece bolt-on rims or rims requiring partial thickening can be made using extruded T-shaped sheet metal, which meets the requirements for rim strength and airtightness. However, when making forward rims using T-shaped sheet metal, the use of diameter-reducing spinning during sheet metal forming can cause deformation of the protruding parts of the sheet metal and compression into the sheet metal body. This can easily affect the shape and size of the rim, making subsequent processing difficult and preventing it from being compatible with multiple rim models.

[0003] Therefore, designing a flaring mold assembly for automotive wheel rims that can solve the deformation problem of wheel rims during the spinning process through flaring and expansion, enabling the production of different models of wheel rims, improving production efficiency and product performance, and having a simple mold design structure to save production costs is an urgent problem to be solved. Utility Model Content

[0004] Based on this, the present invention aims to overcome the defects of the prior art and provide an automobile wheel rim flaring mold assembly. The wheel rim is processed sequentially by a first flaring mold and a second flaring mold. The second upper mold and the second lower mold are used to clamp the wheel rim processed by the first flaring mold. The second upper mold can reciprocate relative to the second lower mold in a second direction and abut against the second lower mold to enable the wheel rim to undergo secondary flaring. This secondary flaring solves the deformation problem of the wheel rim during the spinning process, enables the production of different models of wheel rims, improves production efficiency and product performance, and the mold design structure is simple, saving production costs.

[0005] The first technical solution provided by this utility model:

[0006] A set of flaring molds for automobile wheel rims includes a first flaring mold and a second flaring mold, which are used to process the wheel rims sequentially.

[0007] The first flaring and expanding mold includes a first upper mold, a first lower mold, and a first fixed mold; the first fixed mold is detachably disposed on the first lower mold; the first upper mold and the first lower mold are used to clamp the rim, and the first upper mold can reciprocate relative to the first lower mold in a first direction and can abut against the first lower mold to flare and expand the rim.

[0008] The second flaring and expanding mold includes a second upper mold, a second lower mold, a third lower mold, and a second fixed mold; the second fixed mold is detachably mounted on the second lower mold; the second lower mold is detachably mounted on the third lower mold; the second upper mold and the second lower mold are used to clamp the wheel rim processed by the first flaring and expanding mold, and the second upper mold can reciprocate relative to the second lower mold in a second direction and abut against the second lower mold to make the wheel rim flare and expand for a second time.

[0009] Furthermore, the first flaring and expanding mold also includes a first limiting insert and a second limiting insert. The first limiting insert is detachably disposed on the first upper mold, and the second limiting insert is detachably disposed on the first lower mold. The first upper mold can drive the first limiting insert to reciprocate along the first direction and can abut against the second limiting insert.

[0010] Furthermore, the first flaring and forming mold also includes a first pad insert, which is detachably disposed between the second limiting insert and the first lower mold.

[0011] Furthermore, the first fixed mold is provided with a first boss on the upper ring, and the first boss abuts against the first lower mold and the first pad insert.

[0012] Furthermore, the second flaring mold also includes a third limiting insert and a fourth limiting insert. The third limiting insert is detachably disposed on the second upper mold, and the fourth limiting insert is detachably disposed on the second lower mold. The second upper mold can drive the third limiting insert to reciprocate along the second direction and can abut against the fourth limiting insert.

[0013] Furthermore, the second flaring mold also includes a second pad insert, which is detachably disposed between the fourth limiting insert and the second lower mold.

[0014] Furthermore, the second fixed mold is provided with a second boss on the upper ring, and the second boss abuts against the second lower mold and the second pad insert.

[0015] Furthermore, the first upper mold is provided with a first inclined surface and a first reference surface, and the first inclined surface has a first tilt angle of ≤15° relative to the first reference surface; the second upper mold is provided with a second inclined surface and a second reference surface, and the second inclined surface has a second tilt angle of ≤25° relative to the second reference surface; and the first tilt angle is less than or equal to the second tilt angle.

[0016] Furthermore, the first lower die is provided with a third inclined surface and a third reference surface, and the third inclined surface has a third tilt angle of ≤15° relative to the third reference surface; the second lower die is provided with a fourth inclined surface and a fourth reference surface, and the fourth inclined surface has a fourth tilt angle of ≤25° relative to the fourth reference surface; and the third tilt angle is less than or equal to the fourth tilt angle.

[0017] Furthermore, the first flaring and expanding mold also includes a first part extractor, which is detachably connected to the first upper mold; the second flaring and expanding mold also includes a second part extractor, which is detachably connected to the second upper mold.

[0018] The beneficial effects of this utility model are as follows:

[0019] The wheel rim is processed sequentially by the first flaring and expansion mold and the second flaring and expansion mold. The second upper mold and the second lower mold are used to clamp the wheel rim processed by the first flaring and expansion mold. The second upper mold can move back and forth relative to the second lower mold in the second direction and abut against the second lower mold to make the wheel rim flaring and expansion twice. This can solve the deformation problem of the wheel rim during the spinning process by flaring and expansion twice, realize the production of different models of wheel rims, improve production efficiency and product performance, and the mold design structure is simple and saves production costs. Attached Figure Description

[0020] Figure 1 This is a first-view structural diagram of the first flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0021] Figure 2 This is a second-view structural diagram of the first flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0022] Figure 3 This is a third-view structural diagram of the first flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0023] Figure 4 This is a first-view structural diagram of the second flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0024] Figure 5 This is a second-view structural diagram of the second flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0025] Figure 6 This is a third-view structural diagram of the second flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0026] Figure 7 This is a partial structural diagram of the first upper mold of the first flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0027] Figure 8 This is a partial structural diagram of the second upper mold of the second flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0028] Figure 9This is a partial structural diagram of the first lower mold of the first flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model;

[0029] Figure 10 This is a partial structural diagram of the second lower mold of the second flaring mold of the automobile wheel rim flaring mold assembly according to an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. First flaring and expanding mold; 11. First upper mold; 111. First inclined surface; 112. First reference surface; 12. First lower mold; 121. Third inclined surface; 122. Third reference surface; 13. First fixed mold; 131. First boss; 14. First limiting insert; 15. Second limiting insert; 16. First pad insert; 17. First ejector; 2. Second flaring and expanding mold; 21. Second upper mold; 211. Second inclined surface; 212. Second reference surface; 22. Second lower mold; 221. Fourth inclined surface; 222. Fourth reference surface; 23. Third lower mold; 24. Second fixed mold; 241. Second boss; 25. Third limiting insert; 26. Fourth limiting insert; 27. Second pad insert; 28. Second ejector. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0039] Please refer to the reference. Figure 1 — Figure 10 This application provides an automobile wheel rim flaring mold assembly. The wheel rim is processed sequentially by a first flaring forming mold 1 and a second flaring forming mold 2. The second upper mold 21 and the second lower mold 22 are used to clamp the wheel rim processed by the first flaring forming mold 1. The second upper mold 21 can reciprocate relative to the second lower mold 22 in a second direction and abut against the second lower mold 22 to make the wheel rim flaring twice. This can solve the deformation problem of the wheel rim during the spinning process by flaring twice, realize the production of different models of wheel rims, improve production efficiency and product performance, and the mold design structure is simple and saves production costs.

[0040] The automotive wheel rim flaring die set includes a first flaring forming die 1 and a second flaring forming die 2, which are used to process the wheel rim sequentially. The structure of the first flaring forming die 1 is described in detail below.

[0041] The first flaring and forming mold 1 includes a first upper mold 11, a first lower mold 12, and a first fixed mold 13. The first fixed mold 13 is detachably mounted on the first lower mold 12. The first upper mold 11 and the first lower mold 12 are used to clamp the wheel rim, and the first upper mold 11 can reciprocate relative to the first lower mold 12 in a first direction and can abut against the first lower mold 12 to flare and form the wheel rim. The first upper mold 11 moves closer to the first lower mold 12 in the first direction until it abuts against the first lower mold, completing the flaring and forming. The wheel rim is made of T-shaped material.

[0042] It should be noted that the first flaring and expanding mold 1 also includes a first limiting insert 14 and a second limiting insert 15. The first limiting insert 14 is detachably disposed on the first upper mold 11, and the second limiting insert 15 is detachably disposed on the first lower mold 12. The first upper mold 11 can drive the first limiting insert 14 to reciprocate along the first direction and can abut against the second limiting insert 15. When the abutment state is reached, the flaring and expanding is completed.

[0043] It should be noted that the first flaring and forming mold 1 also includes a first pad insert 16, which is detachably disposed between the second limiting insert 15 and the first lower mold 12. The first fixed mold 13 has a first boss 131 circumferentially arranged on its upper ring, which abuts against the first lower mold 12 and the first pad insert 16. It is understood that the number of first pad inserts 16 can be one or more, depending on the required size of the wheel rim.

[0044] It should be noted that the first flaring and forming mold 1 also includes a first part extractor 17, which is detachably connected to the first upper mold 11. After the flaring and forming is completed, the first upper mold 11 moves away from the first lower mold 12 along a first direction, and the first part extractor 17 is used to remove the flared and formed rim.

[0045] The first upper die 11 has a first inclined surface 111 and a first reference surface 112, with the first inclined surface 111 having a first tilt angle ≤ 15° relative to the first reference surface 112; the second upper die 21 has a second inclined surface 211 and a second reference surface 212, with the second inclined surface 211 having a second tilt angle ≤ 25° relative to the second reference surface 212; and the first tilt angle is less than or equal to the second tilt angle. This angle difference helps prevent the rim from expanding too much into a trumpet shape during bulging and widening, which would make subsequent spinning difficult.

[0046] The structure of the second flaring and expanding mold 2 is described in detail below.

[0047] The second flaring and forming mold 2 includes a second upper mold 21, a second lower mold 22, a third lower mold 23, and a second fixed mold 24. The second fixed mold 24 is detachably mounted on the second lower mold 22; the second lower mold 22 is detachably mounted on the third lower mold 23. The second upper mold 21 and the second lower mold 22 are used to clamp the wheel rim processed by the first flaring and forming mold 1, and the second upper mold 21 can reciprocate relative to the second lower mold 22 in a second direction and abut against the second lower mold 22 to perform secondary flaring and forming of the wheel rim. The second upper mold 21 moves closer to the second lower mold 22 in the second direction until it abuts against the mold, completing the secondary flaring and forming. During the secondary flaring and forming process, the third lower mold 23 mainly plays the role of adjusting the shape of the wheel rim end.

[0048] It should be noted that the second flaring and expanding mold 2 also includes a third limiting insert 25 and a fourth limiting insert 26. The third limiting insert 25 is detachably mounted on the second upper mold 21, and the fourth limiting insert 26 is detachably mounted on the second lower mold 22. The second upper mold 21 can drive the third limiting insert 25 to reciprocate along the second direction and can abut against the fourth limiting insert 26. When the abutting state is reached, the secondary flaring and expanding is completed.

[0049] It should be noted that the second flaring and forming mold 2 also includes a second pad insert 27, which is detachably disposed between the fourth limiting insert 26 and the second lower mold 22. The second fixed mold 24 has a second boss 241 ring-shaped on its upper ring, which abuts against the second lower mold 22 and the second pad insert 27. It is understood that the number of second pad inserts 27 can be one or more, depending on the required size of the wheel rim.

[0050] It should be noted that the second flaring and forming mold 2 also includes a second part extractor 28, which is detachably connected to the second upper mold 21. After the secondary flaring and forming is completed, the second upper mold 21 moves away from the second lower mold 22 along the second direction, and the second part extractor 28 is used to remove the rim formed by the secondary flaring and forming.

[0051] The first lower die 12 has a third inclined surface 121 and a third reference surface 122, and the third inclination angle of the third inclined surface 121 relative to the third reference surface 122 is ≤15°; the second lower die 22 has a fourth inclined surface 221 and a fourth reference surface 222, and the fourth inclination angle of the fourth inclined surface 221 relative to the fourth reference surface 222 is ≤25°; and the third inclination angle is less than or equal to the fourth inclination angle. During the second flaring and expanding process, the rim expands against the die, thus avoiding the rim end from opening too wide after flaring and expanding, and preventing the rim from failing to form during spinning.

[0052] The working principle of the automobile wheel rim flaring mold assembly provided in this embodiment is described below:

[0053] The rim is placed between the first upper mold 11 and the first lower mold 12. The first upper mold 11 moves downward in the first direction, causing the rim to expand and deform in a trumpet shape, with the end forming a rotary arc, until the first limiting insert 14 and the second limiting insert 15 abut against it, completing the flaring and expansion. Then the first upper mold 11 moves upward in the first direction, and the rim is removed by the first part remover 17. The rim is then placed between the second upper mold 21 and the second lower mold 22. The second upper mold 21 moves downward in the second direction, and the flaring and expansion is performed again, causing the outer diameter of the rim end to shrink inward, forming a zigzag design effect, until the third limiting insert 25 and the fourth limiting insert 26 abut against it, completing the second flaring and expansion. Then the second upper mold 21 moves upward in the second direction, and the rim is removed by the second part remover 28.

[0054] In summary, the main effective effects of the embodiments provided by this utility model are as follows:

[0055] The wheel rim is processed sequentially by the first flaring and expansion mold and the second flaring and expansion mold. The second upper mold and the second lower mold are used to clamp the wheel rim processed by the first flaring and expansion mold. The second upper mold can move back and forth relative to the second lower mold in the second direction and abut against the second lower mold to make the wheel rim flaring and expansion twice. This can solve the deformation problem of the wheel rim during the spinning process by flaring and expansion twice, realize the production of different models of wheel rims, improve production efficiency and product performance, and the mold design structure is simple and saves production costs.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automobile wheel rim flaring die set, characterized by, The first flared stretch-die and the second flared stretch-die are used to process the rim in sequence; The first flared stretch-die comprises a first upper die, a first lower die and a first fixed die; the first fixed die is detachably arranged on the first lower die; the first upper die and the first lower die are used to clamp the rim, and the first upper die can reciprocate along a first direction relative to the first lower die and abut against the first lower die to make the rim flared and stretched. The second flared stretch-die comprises a second upper die, a second lower die, a third lower die and a second fixed die; the second fixed die is detachably arranged on the second lower die; the second lower die is detachably arranged on the third lower die; the second upper die and the second lower die are used to clamp the rim processed by the first flared stretch-die, and the second upper die can reciprocate along a second direction relative to the second lower die and abut against the second lower die to make the rim flared and stretched again.

2. The automobile wheel flaring die set according to claim 1, wherein, The first flared stretch-die further comprises a first limiting insert and a second limiting insert; the first limiting insert is detachably arranged on the first upper die, and the second limiting insert is detachably arranged on the first lower die; the first upper die can drive the first limiting insert to reciprocate along the first direction and abut against the second limiting insert.

3. The automobile wheel flaring die set according to claim 2, wherein, The first flared stretch-die further comprises a first pad insert; the first pad insert is detachably arranged between the second limiting insert and the first lower die.

4. The automobile wheel flaring die set according to claim 3, wherein, The first fixed die is annularly provided with a first boss; the first boss abuts between the first lower die and the first pad insert.

5. The automobile wheel flaring die set according to claim 1, wherein, The second flared stretch-die further comprises a third limiting insert and a fourth limiting insert; the third limiting insert is detachably arranged on the second upper die, and the fourth limiting insert is detachably arranged on the second lower die; the second upper die can drive the third limiting insert to reciprocate along the second direction and abut against the fourth limiting insert.

6. The automobile wheel flaring die set according to claim 5, wherein, The second flared stretch-die further comprises a second pad insert; the second pad insert is detachably arranged between the fourth limiting insert and the second lower die.

7. The automobile wheel flaring die set according to claim 6, wherein The second fixed die is annularly provided with a second boss; the second boss abuts between the second lower die and the second pad insert.

8. The automobile wheel flaring die set according to claim 1, wherein, The first upper die is provided with a first inclined surface and a first reference surface; a first inclination angle of the first inclined surface relative to the first reference surface is ≤15°; the second upper die is provided with a second inclined surface and a second reference surface; a second inclination angle of the second inclined surface relative to the second reference surface is ≤25°; and the first inclination angle is less than or equal to the second inclination angle.

9. The automobile wheel flaring die set according to claim 1, wherein, The first lower die is provided with a third inclined surface and a third reference surface; a third inclination angle of the third inclined surface relative to the third reference surface is ≤15°; the second lower die is provided with a fourth inclined surface and a fourth reference surface; a fourth inclination angle of the fourth inclined surface relative to the fourth reference surface is ≤25°; and the third inclination angle is less than or equal to the fourth inclination angle.

10. The automobile wheel flaring die set according to claim 1, wherein, The first flared expanding die further comprises a first piece extractor which is detachably connected with the first upper die; and the second flared expanding die further comprises a second piece extractor which is detachably connected with the second upper die.

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