Wheel hub machining tooling

Abstract

The utility model relates to the technical field of machining, concretely relates to a wheel hub machining frock, it includes: the body, the body is disc structure to be equipped with multiple longitudinal through mounting hole, positioning table, positioning table set up in the body top center, positioning groove, positioning groove open in the body top and be located positioning table's one side, the utility model provides a wheel hub machining frock, through the integration benchmark calibration mechanism, ensure that the wheel hub center axis and machine tool coordinate system accurate alignment when processing.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a wheel hub machining fixture. Background Technology

[0002] As a key component of a vehicle, the machining accuracy of the wheel hub directly affects the vehicle's safety, balance, and service life. Wheel hub machining typically involves milling and drilling holes, grooves, or contours at different angles. However, traditional machining methods often employ vertical clamping or manual alignment, requiring multiple flips or angle adjustments, leading to large cumulative errors and making it difficult to guarantee the perpendicularity of the machined surface to the tool or specific angle requirements. To solve this problem, there is an urgent need for a specialized fixture capable of quickly positioning the wheel hub horizontally and automatically aligning its angles. Utility Model Content

[0003] This utility model provides a wheel hub machining fixture that, through an integrated reference calibration mechanism, ensures precise alignment of the wheel hub's central axis with the machine tool coordinate system during machining.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wheel hub processing fixture, comprising: a body, the body being a disc structure and having multiple longitudinally penetrating mounting holes; a positioning platform, the positioning platform being disposed at the center of the top of the body; and a positioning groove, the positioning groove being formed on the top of the body and located on one side of the positioning platform.

[0005] Preferably, the positioning platform has a polygonal structure and is adapted to the mounting groove of the wheel hub.

[0006] Preferably, the height of the positioning platform is less than the hub offset.

[0007] Preferably, the positioning platform has a screw hole at the center corresponding to the center hole of the wheel hub, and a clamping bolt that mates with the screw hole.

[0008] Preferably, the top of the mounting hole is a cylindrical countersunk hole.

[0009] The advantages of this invention are as follows: The wheel hub is positioned at its center and relative angle using a positioning table, ensuring that the wheel hub axis coincides with the tooling axis. The positioning groove is used for circumferential alignment of the body and the machine tool, thereby constraining the machining angle of the wheel hub through the positioning table. The body is fixed to the machine tool worktable by bolts passing through the mounting holes. During machining, the positioning table ensures the wheel hub is centered, reducing radial runout; the positioning groove provides a circumferential reference, avoiding manual alignment errors and improving machining consistency. The wheel hub can be directly pressed against the positioning table after being laid flat, eliminating the need for repeated adjustments and significantly shortening clamping time, making it suitable for mass production. The disc-shaped body has high rigidity and good vibration resistance; the modular design can adapt to different wheel hub models, offering strong versatility and solving the pain points of inaccurate positioning and low efficiency caused by traditional wheel hub machining methods, possessing high practical value and market promotion potential. The polygonal positioning table fits tightly with the mounting groove on the back of the wheel hub, thereby restricting the circumferential rotation of the wheel hub and ensuring accurate angular positions of machining features. The height of the positioning platform is less than the wheel hub offset, effectively avoiding interference with the wheel hub mounting surface. This ensures that after the wheel hub is placed, the mounting surface is suspended and does not contact the tooling, thus avoiding the risk of scratches or rim deformation. Locking bolts are screwed in to press the wheel hub axially against the positioning platform, preventing loosening or displacement during processing. This makes it suitable for processes requiring high rigidity, enhancing processing stability while also meeting the requirements for quick assembly and disassembly. The mounting holes are countersunk cylindrical holes at the top, concealing the fastener heads and allowing the bolt and screw heads to be fully embedded inside the tooling body. This prevents protruding parts from interfering with the placement or processing of the wheel hub, ensuring a seamless fit between the bottom surface of the wheel hub and the tooling. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the working state of this utility model;

[0013] Figure 3 This is a partial structural cross-sectional view of the present invention.

[0014] In the diagram: 1. Body; 2. Mounting hole; 3. Positioning platform; 4. Positioning groove; 5. Screw hole; 6. Clamping bolt; 7. Wheel hub. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] according to Figure 1 , Figure 2 , Figure 3 As shown, a wheel hub processing fixture includes: a body 1, which is a disc structure and has multiple longitudinally penetrating mounting holes 2; a positioning platform 3, which is located at the top center of the body 1; and a positioning groove 4, which is opened on the top of the body 1 and located on one side of the positioning platform 3.

[0017] With the above setup, the wheel hub 7 is placed flat on the body 1 with its inner end face facing down, and is positioned at the center and relative angle by the positioning table 3 to ensure that the axis of the wheel hub 7 coincides with the axis of the tooling. The positioning groove 4 is used for circumferential alignment of the body 1 and the machine tool, thereby constraining the machining angle of the wheel hub 7 through the positioning table 3. The body 1 is fixed to the machine tool worktable by bolts passing through the mounting hole 2. During the machining process, the positioning table 3 ensures that the center of the wheel hub 7 is aligned, reducing radial runout; the positioning groove 4 provides a circumferential reference, avoiding manual alignment errors and improving machining consistency. After the wheel hub 7 is placed flat, it directly presses against the positioning table 3, so there is no need for repeated adjustments, greatly shortening the clamping time and making it suitable for mass production. The disc-shaped body 1 has high rigidity and good vibration resistance; the modular design can be adapted to different wheel hub models, with strong versatility, solving the pain points of inaccurate positioning and low efficiency caused by traditional wheel hub machining methods, and has high practical value and market promotion potential.

[0018] The positioning platform 3 has a polygonal structure and is adapted to the mounting groove of the wheel hub 7. The polygonal positioning platform 3 fits tightly with the mounting groove on the back of the wheel hub 7, thereby restricting the circumferential rotation of the wheel hub 7 and ensuring that the angular position of the processing features is accurate.

[0019] The height of the positioning platform 3 is less than the offset between the inner end of the wheel hub 7 and the mounting surface. Therefore, it effectively avoids interference with the mounting surface of the wheel hub 7 and ensures that the mounting surface is suspended after the wheel hub 7 is placed, without contacting the tooling, thereby avoiding the risk of scratches or rim deformation.

[0020] The positioning platform 3 has a screw hole 5 corresponding to the center hole of the wheel hub 7, and a clamping bolt 6 that mates with the screw hole 5. With this setting, the wheel hub 7 is pressed axially onto the positioning platform 3 by screwing in the clamping bolt 6, preventing the wheel hub 7 from loosening or shifting during processing. This makes it suitable for processes that require high rigidity fixation, enhancing processing stability while also meeting the requirements for quick assembly and disassembly.

[0021] The top of the mounting hole 2 is a cylindrical countersunk hole, which can hide the head of the fastener, so that the head of the bolt or screw is completely embedded inside the tooling body 1, avoiding the protruding part from interfering with the placement or processing of the wheel hub, and ensuring that the bottom surface of the wheel hub 7 fits the tooling without gaps.

[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A wheel hub machining fixture, characterized in that, include: The main body (1) is a disc structure and has multiple longitudinal through mounting holes (2); Positioning platform (3), the positioning platform (3) is disposed at the top center of the main body (1); Positioning groove (4) is formed on the top of the body (1) and located on one side of the positioning platform (3).

2. The wheel hub machining fixture according to claim 1, characterized in that: The positioning platform (3) has a polygonal structure and is adapted to the mounting groove of the wheel hub.

3. The wheel hub machining fixture according to claim 1, characterized in that: The height of the positioning platform (3) is less than the hub offset.

4. The wheel hub machining fixture according to claim 1, characterized in that: The positioning platform (3) has a screw hole (5) in the center corresponding to the center hole of the wheel hub, and a clamping bolt (6) that cooperates with the screw hole (5).

5. The wheel hub machining fixture according to claim 1, characterized in that: The top of the mounting hole (2) is a cylindrical countersunk hole.

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