A vehicle wheel rim machining device

Abstract

The utility model discloses a vehicle wheel rim processing device, including the rotary table, be provided with the placing table on the rotary table, be provided with the stand on the placing table, the outside of stand is provided with several tensioning arms, the stand in be provided with the sliding block, tensioning arm with sliding block meet, still be provided with the power source of meeting with sliding block on the stand. The rim is on the placing table, and the stand is in the inner side of the rim. With the start of power source, can drive tensioning arm to change the angle, make tensioning arm can be in the angle range arbitrary position close to the inner wall of the rim, and with its close, realize the tensioning effect, and make the rim more firmly limit in the placing table, when the placing table rotates, and when the engraver contacts the rim, it will not move relatively.

Description

Technical Field

[0001] This utility model relates to a processing device, specifically a vehicle wheel rim processing device, belonging to the field of wheel production technology. Background Technology

[0002] The wheel rim is a crucial component of a wheel, located on the outer circumference of the hub and serving to secure the tire. During manufacturing, the primary task is to machine the rim flange from the rim blank. The flange is distributed around the rim's circumference, requiring the rim itself to rotate during machining. This, combined with engraving tools, creates continuous grooves. To ensure the rim remains stationary during rotation, it needs to be restrained. However, directly restraining the rim from the outside would inevitably cover its circumference, affecting machining. Furthermore, different rims, due to their varying dimensions, require different fixtures or tooling, or adjustments to the fixture's position to accommodate different rims, leading to reduced work efficiency. Therefore, further improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a vehicle wheel rim processing device. The fixture has a wide range of applications, a simple and reasonable structure, and is convenient and quick to operate without the need for manual adjustment.

[0004] The technical solution adopted by this utility model is as follows: a vehicle wheel rim processing device, including a rotary table, a placement platform is provided on the rotary table; a column is provided on the placement platform; a plurality of tensioning arms are provided on the outer side of the column; a sliding block is provided inside the column; the tensioning arms are connected to the sliding block; and a power source connected to the sliding block is also provided on the column.

[0005] Furthermore, several elongated through holes are provided around the perimeter of the column; each of the elongated through holes corresponds to a tensioning arm.

[0006] Furthermore, the end of the tensioning arm is connected to a contact plate via a torsion spring; the end of the tensioning arm is provided with a mounting head; a swing shaft is provided inside the contact plate; the swing shaft is connected to the mounting head via a torsion spring.

[0007] Furthermore, rotating shafts are provided on both sides of the middle part of the tensioning arm; the middle part of the tensioning arm is connected to the elongated through hole through the rotating shafts.

[0008] Furthermore, the sliding block is provided with hinge grooves around its perimeter; each hinge groove corresponds to a tensioning arm.

[0009] Furthermore, the sliding block is provided with a limiting guide groove around its perimeter; the inner wall of the column is provided with a limiting protrusion; the sliding block slides along the direction of the limiting protrusion.

[0010] Furthermore, the power source is a cylinder; the piston of the cylinder is connected to the sliding block.

[0011] This invention offers the following advantages: the rim is positioned on the placement platform, while the column is located inside the rim. With the activation of the power source, the tensioning arm can change angle, allowing it to approach and adhere to the inner wall of the rim at any position within its angle range, thus achieving tension and firmly securing the rim on the placement platform. When the platform rotates or the carving tool contacts the rim, there will be no relative movement. Furthermore, because the tensioning arm can move within a wide angle range, it can accommodate various rim sizes and inner diameters, tensioning the rim from the inside out under all conditions. This design offers strong versatility and eliminates the need for manual adjustment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the column.

[0014] Figure 3 This is a schematic diagram of the contact plate and the tensioning arm.

[0015] Wherein: 1 is a rotary table, 2 is a placement platform, 3 is a column, 3-1 is a long through hole, 4 is a tensioning arm, 4-1 is a mounting head, 5 is a sliding block, 5-1 is a hinge groove, 6 is a contact plate, 7 is a swing shaft, 8 is a rotating shaft, and 9 is a cylinder. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] See Figures 1-3 This application discloses a vehicle wheel rim processing device, including a rotary table 1, a placement platform 2 on the rotary table 1, a column 3 on the placement platform 2, a plurality of tensioning arms 4 on the outer side of the column 3, a sliding block 5 inside the column 3, the tensioning arms 4 being connected to the sliding block 5, and a power source connected to the sliding block 5 on the column 3.

[0018] Furthermore, the column 3 has several elongated through holes 3-1 around its perimeter; each elongated through hole 3-1 corresponds to a tensioning arm 4.

[0019] Furthermore, the end of the tensioning arm 4 is connected to a contact plate 6 via a torsion spring; the end of the tensioning arm 4 is provided with a mounting head 4-1; a swing shaft 7 is provided inside the contact plate 6; the swing shaft 7 is connected to the mounting head 4-1 via a torsion spring.

[0020] Specifically, in this embodiment, as the tensioning arm 4 rotates upward, the contact plate 6 gradually approaches the inner wall of the rim until it makes contact; after contact, the contact plate 6 and the inner wall are squeezed and rotate until the contact plate 6 is completely flush with the inner wall. At this time, the distance between the tensioning arm 4 and the inner wall is the shortest, and the tensioning arm 4 can no longer rotate upward, thus achieving tensioning.

[0021] Furthermore, the tensioning arm 4 has rotating shafts 8 on both sides of its middle section; the middle section of the tensioning arm 4 is connected to the elongated through hole 3-1 via the rotating shafts 8.

[0022] Furthermore, the sliding block 5 is provided with hinge grooves 5-1 around its perimeter; the hinge grooves 5-1 correspond one-to-one with the tensioning arm 4.

[0023] Furthermore, the sliding block 5 is provided with a limiting guide groove around its perimeter; the inner wall of the column 3 is provided with a limiting protrusion; and the sliding block 5 slides along the direction of the limiting protrusion.

[0024] Furthermore, the power source is a cylinder 9; the piston of the cylinder 9 is connected to the sliding block 5.

[0025] Working principle: As cylinder 9 operates, it drives sliding block 5 to gradually descend within column 3. The descent of sliding block 5 causes tension arm 4 to gradually rotate upward. As its rotation angle increases, the furthest point that tension arm 4 can reach also increases, meaning it can accommodate rims with larger inner diameters. When tension arm 4 rotates to the point where its end approaches and contacts the inner wall of the rim, the contact plate 6 at its end will also gradually approach and completely adhere to the inner wall of the rim. At this point, tension arm 4 can no longer rotate, and its contact plate 6 at its end will be tightly pressed against the inner wall, achieving tension.

[0026] For rims with smaller inner diameters, the upward tilt angle of the tensioning arm 4 will be relatively smaller, yet it can still contact the inner wall of the rim at a smaller angle. As long as it is within the angle range, rims of any inner diameter can make close contact with the tensioning arm 4 without manual adjustment.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A vehicle wheel rim processing device, comprising a rotary table (1), characterized in that: The rotary table (1) is provided with a placement platform (2); the placement platform (2) is provided with a column (3); a plurality of tensioning arms (4) are provided on the outside of the column (3); a sliding block (5) is provided inside the column (3); the tensioning arm (4) is connected to the sliding block (5); the column (3) is also provided with a power source connected to the sliding block (5).

2. The vehicle wheel rim processing device according to claim 1, characterized in that: The column (3) has several elongated through holes (3-1) around its perimeter; the elongated through holes (3-1) correspond one-to-one with the tensioning arm (4).

3. The vehicle wheel rim processing device according to claim 2, characterized in that: The end of the tensioning arm (4) is connected to a contact plate (6) via a torsion spring; the end of the tensioning arm (4) is provided with a mounting head (4-1); a swing shaft (7) is provided inside the contact plate (6); the swing shaft (7) is connected to the mounting head (4-1) via a torsion spring.

4. The vehicle wheel rim processing device according to claim 3, characterized in that: Rotating shafts (8) are provided on both sides of the middle part of the tensioning arm (4); the middle part of the tensioning arm (4) is connected to the elongated through hole (3-1) through the rotating shafts (8).

5. The vehicle wheel rim processing device according to claim 4, characterized in that: The sliding block (5) is provided with hinge grooves (5-1) around its perimeter; the hinge grooves (5-1) correspond one-to-one with the tensioning arm (4).

6. The vehicle wheel rim processing device according to claim 5, characterized in that: The sliding block (5) is provided with a limiting guide groove around its perimeter; the inner wall of the column (3) is provided with a limiting protrusion; the sliding block (5) slides along the direction of the limiting protrusion.

7. A vehicle wheel rim processing device according to claim 6, characterized in that: The power source is a cylinder (9); the piston of the cylinder (9) is connected to the sliding block (5).

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