A quality inspection bearing structure for hub mold processing

Abstract

The utility model discloses a kind of quality inspection bearing structures for wheel hub die machining, belong to wheel hub die machining technical field, including calibration ring block, platen and support leg, platen bottom surface is equipped with multiple support legs and upper end surface is equipped with calibration ring block, calibration ring block is circle shape structure and front end is equipped with the aperture for the butt joint wheel hub side mould, the part of calibration ring block at the two sides of aperture is the joint fracture surface of the left and right two side inclines of abutting wheel hub side mould, the central hole is equipped in the center of platen and the aperture of calibration ring block is equipped with side mould butt joint hole in front side corresponding.The utility model sets up calibration ring block and provides a calibration surface as the detection reference on physical layer, when wheel hub side mould as measured piece is embedded aperture, calibration ring block and wheel hub side mould jointly constitute a complete wheel hub outer circumferential surface, and the central hole of the center scanning body that can butt joint is cooperatively arranged, can adapt to two kinds of modes of laser detection and contact detection, good adaptability, facilitate the quality inspection of wheel hub side mould.

Description

Technical Field

[0001] This utility model belongs to the technical field of wheel hub mold processing, and particularly relates to a quality inspection bearing structure for wheel hub mold processing. Background Technology

[0002] In the wheel hub casting process, the wheel hub side mold is the core mold component that determines the shape accuracy, dynamic balance performance, and appearance quality of the wheel hub's outer circumferential curved surface. Since the working surface of the wheel hub side mold is mostly a complex free-form surface or a high-order continuous surface, and is usually composed of multiple segments, the quality inspection after the mold is processed and before it is put into use is particularly critical. In the existing technology, the quality inspection of the wheel hub side mold mainly relies on a coordinate measuring machine or a general-purpose handheld laser scanner. However, the wheel hub side mold is only a part of the outer circumference of the wheel hub, usually an arc segment, which is a non-closed open surface. When using general measuring equipment, there is a lack of a standard geometric closed-loop reference system. This leads to insufficient degree-of-freedom constraints when registering the measured point cloud with the theoretical model in subsequent data processing, which greatly increases the complexity of the fitting calculation and the risk of error accumulation. Summary of the Invention

[0003] To overcome the technical problems described in the background, this utility model provides a quality inspection bearing structure for wheel hub mold processing. The calibration ring block provides a calibration surface as a physical detection benchmark. When the wheel hub side mold, which is the test piece, is inserted into the notch, the calibration ring block and the wheel hub side mold together form a complete outer circumferential surface of the wheel hub. In addition, the central hole that can be connected to the central scanning body is provided, which can adapt to both laser detection and contact detection modes. It has good adaptability and facilitates the quality inspection of wheel hub side molds.

[0004] The technical solution of this utility model is as follows: a quality inspection bearing structure for wheel hub mold processing, including a calibration ring block, a platform, and support legs. The bottom surface of the platform is provided with multiple support legs, and the upper surface is provided with a calibration ring block. The calibration ring block has a circular structure and a notch at the front end for docking with the wheel hub side mold. The part of the calibration ring block on both sides of the notch is a joint break surface that abuts against the left and right side inclined surfaces of the wheel hub side mold. The center of the platform is provided with a central hole, and the front side corresponding to the notch of the calibration ring block is provided with a side mold docking hole for docking with the side mold positioning hole of the wheel hub side mold. The axis of the side mold docking hole coincides with the axis of the side mold positioning hole of the wheel hub side mold, and the axis of the calibration ring block also coincides with the axis of the central hole.

[0005] Furthermore, the inner wall surface of the calibration ring block is provided with a calibration surface of the same shape as the working surface of the wheel hub side mold, so that the calibration surface and the working surface of the wheel hub side mold can form a complete outer peripheral surface of the wheel hub.

[0006] Furthermore, the platform has multiple short positioning posts on the outer curved surface of the calibration ring block to restrict the movement of the calibration ring block on the upper plane of the platform.

[0007] Furthermore, a rotation reinforcing sleeve and a positioning reinforcing sleeve are respectively provided on the lower end surface of the platform corresponding to the center hole and the side mold docking hole.

[0008] Furthermore, the platform is inclined at the front and lower at the back, so that the left and right sides of the wheel hub side mold press against the notch on the calibration ring block by their own weight.

[0009] The beneficial effects of this utility model due to the adoption of the above-mentioned technology are as follows: 1. The calibration ring block set in this utility model provides a calibration surface as a physical detection reference. When the wheel hub side mold, which is the test piece, is inserted into the notch, the calibration ring block and the wheel hub side mold together form a complete outer circumferential surface of the wheel hub, which can eliminate the positioning error in the process of establishing the measurement coordinate system and ensure the geometric consistency of the test. 2. This utility model features a central hole that can align with the central scanning body, adapting to both laser detection and contact detection modes. This allows for convenient automatic modeling in the host software system after laser scanning, utilizing point cloud data from the calibration surface for automatic registration. This facilitates rapid calculation of the deviation of the wheel hub side mold working surface from the theoretical value, simplifying the algorithmic complexity of reverse modeling and quality assessment. Furthermore, during direct contact measurement, quality inspectors can easily observe whether there is a gap between the horizontal measuring rod of different lengths and the working surface of the calibration block when rotating the central scanning body to the working surface of the side mold positioning hole. If a gap exists, the quality is unqualified due to the discrepancy with the calibration surface; otherwise, it is qualified. This makes the direct contact detection process intuitive and efficient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is the front view of this utility model.

[0012] Figure 3 This is the left view of this utility model.

[0013] Figure 4 This is a top view of the present invention.

[0014] Figure 5 This is a schematic diagram of the structure of this utility model after the upper mold and side mold are assembled.

[0015] Figure 6 yes Figure 6 Left view of the structure shown.

[0016] Figure 7 yes Figure 6 The bottom view of the structure shown.

[0017] In the figure: 1. Calibration ring block, 2. Center hole, 3. Platform, 4. Calibration curved surface, 5. Joint fracture surface, 6. Side mold docking hole, 7. Support leg, 8. Positioning reinforcement sleeve block, 9. Hub side mold, 10. Side mold positioning hole, 11. Positioning short column, 12. Center scanning body, 13. Rotation reinforcement sleeve block. Detailed Implementation

[0018] Example 1: As Figures 1-7 As shown, this utility model provides a quality inspection bearing structure for wheel hub mold processing, including a calibration ring block 1, a platform 3, and support legs 7. The platform 3 has six support legs 7 on its bottom surface and a calibration ring block 1 on its upper surface. The calibration ring block 1 has a circular structure and a notch at its front end for engaging with a wheel hub side mold 9. The portions of the calibration ring block 1 on both sides of the notch form joint surfaces 5 that abut against the left and right inclined surfaces of the wheel hub side mold 9. The inner sidewall curved surface of the calibration ring block 1 has a calibration curved surface 4 with the same shape as the working curved surface of the wheel hub side mold 9, such that the calibration curved surface 4 and the wheel hub side mold 9... The working surface can form a complete outer circumferential surface of the wheel hub. The platform 3 has a central hole 2 in the center and a side mold docking hole 6 on the front side corresponding to the notch of the calibration ring block 1 for docking with the side mold positioning hole 10 of the wheel hub side mold 9. The axis of the side mold docking hole 6 coincides with the axis of the side mold positioning hole 10 of the wheel hub side mold 9. The axis of the calibration ring block 1 also coincides with the axis of the central hole 2. In this way, a central scanning body 12 can be installed on the central hole 2. The central scanning body 12 can be a laser scanner capable of scanning the longitudinal curve or it can be a scanner with multiple calibration lengths. The direct contact measurement structure of the horizontal measuring rod, if the central scanning body 12 is a laser scanner, allows the central scanning body 12 to completely scan the outer peripheral surface of the wheel hub formed by the calibration surface 4 and the working surface of the wheel hub side mold 9 by rotation. The calibration surface 4 serves as a reference benchmark, facilitating automatic registration using the point cloud data of the calibration surface 4 during automatic modeling in the host software system after the laser scanner completes the scan. This allows for quick and easy calculation of the deviation of the working surface of the wheel hub side mold 9 from the theoretical value, simplifying the process. The algorithmic complexity of reverse modeling and quality judgment; however, if the central scanning body 12 is a direct contact measurement structure with multiple horizontal measuring rods of calibrated lengths, then quality inspectors can quickly observe whether there is a gap between the horizontal measuring rod and the working surface of the calibration ring block 1 when the horizontal measuring rods of different lengths that are in contact with the calibration surface 4 rotate to the working surface of the side mold positioning hole 10. If there is a gap, it is different from the calibration surface 4 and the quality is unqualified; otherwise, it is qualified, making the whole inspection process intuitive and efficient.

[0019] Among them, the six vertical support legs 7 are evenly distributed on the lower end surface of the platform 3 with equal spacing between adjacent ones, and two of the support legs 7 are located directly below the left and right sides of the wheel hub side mold 9 assembled on the platform 3. This ensures that the load-bearing rigidity of the platform 3 is relatively higher after the wheel hub side mold 9 is assembled on the platform 3, so as to ensure the docking stability of the wheel hub side mold 9 and the calibration ring block 1.

[0020] Example 2: Considering that the notch of calibration ring block 1 frequently contacts the hub side mold 9, posing a risk of stress concentration and wear, based on Example 1, the welding connection between calibration ring block 1 and platform plate 3, i.e., the structure where calibration ring block 1 is welded to platform plate 3, is changed to calibration ring block 1 pressing against platform plate 3, forming a detachable structure, such as... Figure 5 and Figure 6 As shown, the platform 3 has multiple positioning short posts 11 around the outer curved surface of the calibration ring block 1 to restrict the movement of the calibration ring block 1 on the upper plane of the platform 3. As long as the calibration ring block 1 is constrained to prevent planar movement relative to the platform 3, the calibration ring block 1 can be easily replaced if the notch of the calibration ring block 1 is worn due to long-term use.

[0021] Example 3: Based on Example 1 or 2, in order to ensure that the platform 3 has sufficient load-bearing capacity in the central hole 2 and the side mold docking hole 6, and to ensure that the central scanning body 12 and the wheel hub side mold 9 can be stably connected to the platform 3, as follows: Figure 7 As shown, a rotation reinforcing sleeve 13 and a positioning reinforcing sleeve 8 are respectively provided on the lower end surface of the platform 3 corresponding to the center hole 2 and the side mold docking hole 6. In this way, whether the bottom of the center scanning body 12 is inserted into the center hole 2 or the side mold positioning hole 10 of the wheel hub side mold 9 is connected to the side mold docking hole 6 through the insertion rod, the platform 3 can be ensured to provide stable load-bearing.

[0022] Example 4: To facilitate assembly, based on Example 1, the platform 3 is changed to an inclined shape with the front higher than the back. In this way, the calibration ring block 1 will also be inclined with the front higher than the back. At this time, when the wheel hub side mold 9 is assembled into the notch of the calibration ring block 1, the left and right sides of the wheel hub side mold 9 can press against the notch on the calibration ring block 1 by their own weight.

Claims

1. A quality inspection bearing structure for wheel hub mold processing, characterized in that: The system includes a calibration ring block (1), a platform (3), and support legs (7). The platform (3) has multiple support legs (7) on its bottom surface and the calibration ring block (1) on its upper surface. The calibration ring block (1) has a circular structure and a notch at its front end for docking with the wheel hub side mold (9). The part of the calibration ring block (1) on both sides of the notch is a joint break surface (5) that abuts against the left and right side slopes of the wheel hub side mold (9). The platform (3) has a central hole (2) in its center and a side mold docking hole (6) on its front side corresponding to the notch of the calibration ring block (1) for docking with the side mold positioning hole (10) of the wheel hub side mold (9). The axis of the side mold docking hole (6) coincides with the axis of the side mold positioning hole (10) of the wheel hub side mold (9). The axis of the calibration ring block (1) also coincides with the axis of the central hole (2).

2. The quality inspection bearing structure for wheel hub mold processing according to claim 1, characterized in that: The inner sidewall surface of the calibration ring block (1) is provided with a calibration surface (4) of the same shape as the working surface of the wheel hub side mold (9), so that the calibration surface (4) and the working surface of the wheel hub side mold (9) can form a complete outer circumferential surface of the wheel hub.

3. The quality inspection bearing structure for wheel hub mold processing according to claim 2, characterized in that: The platform (3) is provided with a plurality of positioning short posts (11) around the outer side wall curved surface of the calibration ring block (1) for restricting the movement of the calibration ring block (1) on the upper plane of the platform (3).

4. The quality inspection bearing structure for wheel hub mold processing according to claim 3, characterized in that: The lower end face of the platform (3) is provided with a rotation reinforcing sleeve (13) and a positioning reinforcing sleeve (8) corresponding to the center hole (2) and the side mold docking hole (6), respectively.

5. The quality inspection bearing structure for wheel hub mold processing according to claim 4, characterized in that: The platform (3) is inclined in the front and low in the back, so that the left and right sides of the wheel hub side mold (9) press against the notch on the calibration ring block (1) by their own weight.

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