Three-coordinate wheel hub detection tool

Abstract

The utility model relates to the technical field of wheel hub detection, in particular to a three-coordinate wheel hub detection tool which comprises two groups of connecting plates which are symmetrically arranged, nylon supporting rods are symmetrically arranged at the tops of the connecting plates, sliding blocks are symmetrically connected in the connecting plates in a sliding mode, and the nylon supporting rods are connected with the sliding blocks in a sliding mode. Pin holes are designed and machined in the two ends of the nylon supporting rod, positioning pins are inserted into the pin holes, pin holes are also formed in the top of the sliding block, the bottom ends of the positioning pins are inserted into the sliding block through the pin holes, and a driving assembly used for controlling the sliding block to slide is installed in the connecting plate. According to the three-coordinate hub detection tool provided by the utility model, the hub is supported by the nylon supporting rods, the distance between the nylon supporting rods is adjusted by the adjusting assembly, and the three-coordinate hub detection tool has the advantages that the applicability is wide, the human input and the time cost are reduced, the equipment abrasion is reduced, and the reliability and the accuracy of product quality detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub inspection technology, and in particular to a three-coordinate wheel hub inspection fixture. Background Technology

[0002] In the field of wheel hub size inspection, accurate measurement of wheel hubs using coordinate measuring machines is a key step in ensuring product quality. In traditional processes, V-blocks are commonly used as the tooling for measuring wheel hub sizes using coordinate measuring machines. When using this tooling, it is necessary to manually change to the appropriate type of V-block according to the wheel hub size specifications (covering various types such as 12 inches to 24 inches) to ensure that the wheel hub can be stably supported during the inspection process and meet the measurement requirements.

[0003] However, as the automotive manufacturing industry rapidly transforms towards streamlined, automated, and mixed-line production models, the drawbacks of this traditional tooling are becoming increasingly apparent. On streamlined production lines, wheel hub sizes and specifications vary, and the production pace is tight. Traditional tooling requires operators to frequently change V-blocks according to the dimensions of the off-line wheel hubs. This is not only cumbersome and time-consuming, but also severely restricts production efficiency. At the same time, due to frequent tooling changes, the connection between the tooling and the coordinate measuring machine is constantly in a state of disassembly and friction, leading to accelerated wear on the connection parts, shortening the equipment's lifespan, increasing maintenance costs, and potentially affecting measurement accuracy due to unstable connections, causing inspection errors and reducing the reliability of product quality inspection.

[0004] Therefore, it is necessary to provide a new three-coordinate measuring machine tool for inspecting wheel hubs to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a three-coordinate measuring machine tool for inspecting wheel hubs.

[0006] The three-coordinate measuring machine tooling for wheel hubs provided by this utility model includes: a connecting plate, which has two sets of symmetrically placed connecting plates, symmetrically provided nylon support rods on the top of the connecting plates, and symmetrically slidably connected sliders inside the connecting plates. Both ends of the nylon support rods are designed and machined with pin holes, and positioning pins are inserted into the pin holes. The bottom end of the positioning pin is inserted into the slider. A drive component for controlling the sliding of the slider is installed inside the connecting plate.

[0007] Preferably, the drive assembly includes: a bidirectional threaded rod, a worm gear, a worm, and a guide rod. The connecting plates are rotatably connected to the bidirectional threaded rods, and both ends of the bidirectional threaded rods are threadedly connected to the sliders. One end of the bidirectional threaded rod is fixedly connected to a worm gear. One end of the connecting plate is provided with a worm. The two ends of the worm are respectively inserted into the two connecting plates. The worm and the worm gear are meshed and connected. The connecting plates are rotatably connected to the guide rods, and the guide rods are slidably connected to the sliders.

[0008] Preferably, the top of each connecting plate is symmetrically provided with a sliding groove, in which the slider and the positioning pin slide.

[0009] Preferably, one of the two connecting plates has a knob rotatably connected to one side, the knob is fixedly connected to the worm gear, and the outer wall of the knob has anti-slip texture.

[0010] Preferably, the connecting plate is designed as a U-shaped structure, and a set of straight holes for connecting bolts are machined in the middle of the connecting plate. Bolts are inserted into the straight holes, and the connecting plate is fixedly connected to the threaded holes of the coordinate measuring machine's worktable by bolts.

[0011] Preferably, the bolt and the locating pin are standard parts.

[0012] Preferably, the nylon support rod is a cylindrical structure, used to support the wheel hub being tested, and the entire material is nylon.

[0013] Preferably, a pull ring is fixedly connected to the top of the locating pin.

[0014] Compared with related technologies, the three-coordinate measuring machine tooling for wheel hub inspection provided by this utility model has the following beneficial effects:

[0015] Wide applicability:

[0016] In terms of applicability, it abandons the traditional tooling model that relies on changing V-shaped frames to adapt to different sizes of wheel hubs. By controlling the slider through the drive component to move the nylon support rod, the spacing of the nylon support rod can be flexibly adjusted, easily adapting to various specifications of wheel hubs such as 12 inches to 24 inches. This meets the inspection needs of wheel hubs of different sizes in assembly line, automated, and mixed-line production, greatly expanding the application range of the tooling.

[0017] Save manpower:

[0018] In terms of ease of operation, operators do not need to frequently change tooling. They only need to turn the knob to rotate the bidirectional threaded rod through the worm gear and worm wheel transmission, so as to quickly adjust the position of the nylon support rod. The operation is simple and efficient, which greatly reduces manpower input and time costs, significantly improves the efficiency of inspection work, and ensures the smooth operation of the production line.

[0019] Reduce equipment wear and tear:

[0020] Regarding equipment protection, the reduced frequency of tooling changes and the decreased number of disassembly and friction operations between the tooling and the coordinate measuring machine effectively prevent excessive wear on the connection points, extend the equipment's service life, and reduce maintenance costs. At the same time, the stable tooling structure ensures that the wheel hub position is fixed during the inspection process, avoiding measurement errors caused by tooling wobbling, improving the reliability and accuracy of product quality inspection, and providing strong support for quality control in wheel hub production. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the three-coordinate measuring machine tooling for wheel hub inspection provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the structure of the connecting plate.

[0023] Figure 3 for Figure 1 The diagram shows the structure of the nylon support rod.

[0024] Figure 4 for Figure 1 The diagram shows the internal structure of the connecting plate.

[0025] Figure 5 for Figure 4 The diagram shows the structure of the knob.

[0026] The following are the labels in the diagram: 1. Connecting plate; 2. Nylon support rod; 3. Slider; 4. Pin hole; 5. Locating pin; 6. Double threaded rod; 7. Worm gear; 8. Worm; 9. Guide rod; 10. Slide groove; 11. Knob; 12. Straight hole; 13. Bolt; 14. Pull ring. Detailed Implementation

[0027] 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 for explaining the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 5A three-coordinate measuring machine (CCM) tooling for inspecting wheel hubs includes: a connecting plate 1, which has two sets of symmetrically placed connecting plates 1; symmetrically arranged nylon support rods 2 on the top of the connecting plates 1; symmetrically slidably connected sliders 3 inside the connecting plates 1; pin holes 4 are machined at both ends of the nylon support rods 2, and positioning pins 5 are inserted into the pin holes 4, with the bottom end of the positioning pins 5 inserted into the sliders 3; a driving assembly for controlling the sliding of the sliders 3 is installed inside the connecting plates 1; and symmetrically arranged sliding grooves 10 on the top of the connecting plates 1. Block 3 and positioning pin 5 slide within the slide groove 10. The connecting plate 1 is designed with a U-shaped structure. A set of straight holes 12 for connecting bolts 13 are machined in the middle of the connecting plate 1. Bolts 13 are inserted into the straight holes 12. The connecting plate 1 is fixedly connected to the threaded hole of the three-coordinate measuring machine worktable through the bolts 13. The bolts 13 are standard parts. The positioning pin 5 is a standard part. The nylon support rod 2 is a cylindrical structure. The nylon support rod 2 is used to support the wheel hub being inspected. The whole material is nylon. A pull ring 14 is fixedly connected to the top of the positioning pin 5.

[0030] It should be noted that the top of the slider 3 is also provided with a pin hole 4. The slider 3 is inserted into the positioning pin 5 through the pin hole 4. The pull ring 14 is provided to facilitate the operation of the positioning pin 5 by the staff.

[0031] Please see Figure 1 , Figure 4 and Figure 5 The drive assembly includes: a bidirectional threaded rod 6, a worm gear 7, a worm 8, and a guide rod 9. The bidirectional threaded rod 6 is rotatably connected inside the connecting plate 1. Both ends of the bidirectional threaded rod 6 are threadedly connected to the slider 3. One end of the bidirectional threaded rod 6 is fixedly connected to the worm gear 7. One end of the connecting plate 1 is provided with a worm 8. The two ends of the worm 8 are respectively inserted into the two connecting plates 1. The worm 8 is meshed with the worm gear 7. The guide rod 9 is rotatably connected inside the connecting plate 1. The guide rod 9 is slidably connected to the slider 3. A knob 11 is rotatably connected to one side of one of the two connecting plates 1. The knob 11 is fixedly connected to the worm 8. The outer wall of the knob 11 is provided with anti-slip texture.

[0032] It should be noted that the anti-slip texture on the outer wall of knob 11 can effectively increase the friction during operation, making it easier to control precisely.

[0033] The working principle of the three-coordinate measuring machine tooling for wheel hub inspection provided by this utility model is as follows:

[0034] Tooling installation and positioning:

[0035] Before inspecting the wheel hub, the tooling must first be installed and positioned. The nylon support rod 2 is positioned and connected to the connecting plate 1 by the positioning pin 5. The pin holes 4 at both ends of the nylon support rod 2 are precisely matched with the positioning pin 5 to achieve initial fixation. Since the connecting plate 1 is designed with a U-shaped structure, the straight hole 12 in the middle can be used to insert the bolt 13. The bolt 13 is fixedly connected to the threaded hole of the coordinate measuring machine's worktable to ensure that the connecting plate 1 is stably installed on the worktable.

[0036] Place the wheel hub:

[0037] Once the tooling is installed, the wheel hub inspection process begins. The wheel hub to be inspected is placed on two sets of parallel nylon support rods 2. The nylon support rods 2 are cylindrical and made of nylon material. This material can provide stable support for the wheel hub and avoid scratching the surface of the wheel hub.

[0038] Adjust the spacing of nylon support rods 2:

[0039] If it is necessary to perform inspection and adjustment according to different sizes or shapes of wheel hubs, it can be achieved through the drive assembly. Rotate the knob 11, which is fixedly connected to the worm gear 8. The anti-slip texture on the outer wall of the knob 11 can effectively increase the friction during operation, making it easy to control precisely. When the worm gear 8 rotates, it drives the worm wheel 7 that meshes with it to rotate. The worm wheel 7 is fixedly connected to the bidirectional threaded rod 6, which in turn causes the bidirectional threaded rod 6 to rotate. Since the two ends of the bidirectional threaded rod 6 are respectively threadedly connected to the slider 3, and the guide rod 9 inside the connecting plate 1 is slidably connected to the slider 3, under the restriction of the guide rod 9, the slider 3 can only slide symmetrically inside the connecting plate 1 along the direction of the slide groove 10. The sliding of the slider 3 drives the positioning pin 5 to move synchronously, thereby adjusting the position of the nylon support rod 2 to adapt to the inspection requirements of wheel hubs of different specifications.

[0040] Start testing:

[0041] Once the wheel hub is in place and the nylon support rod 2 is properly adjusted, the coordinate measuring machine is started. The machine performs benchmark positioning according to product requirements. The wheel hub, stably supported by the tooling, ensures that its position is fixed during the inspection process, avoiding the impact of shaking or other factors on the inspection results. Subsequently, the machine performs dimensional inspection, accurately acquiring various parameter data of the wheel hub, and completing the comprehensive inspection of the wheel hub.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A three-coordinate measuring machine tooling for inspecting wheel hubs, characterized in that, include: The connecting plate (1) has two sets of symmetrically placed connecting plates (1). The top of the connecting plate (1) is symmetrically provided with nylon support rods (2). The connecting plate (1) is symmetrically connected with sliders (3). The two ends of the nylon support rods (2) are designed and machined with pin holes (4). A positioning pin (5) is inserted into the pin hole (4). The top of the slider (3) is also provided with a pin hole (4). The bottom end of the positioning pin (5) is inserted into the slider (3) through the pin hole (4). The connecting plate (1) is equipped with a drive component for controlling the sliding of the slider (3).

2. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 1, characterized in that, The drive assembly includes: a bidirectional threaded rod (6), a worm gear (7), a worm (8), and a guide rod (9). The bidirectional threaded rod (6) is rotatably connected inside the connecting plate (1). Both ends of the bidirectional threaded rod (6) are threadedly connected to the slider (3). One end of the bidirectional threaded rod (6) is fixedly connected to the worm gear (7). One end of the connecting plate (1) is provided with a worm (8). Both ends of the worm (8) are inserted into the two connecting plates (1). The worm (8) meshes with the worm gear (7). The guide rod (9) is rotatably connected inside the connecting plate (1). The guide rod (9) is slidably connected to the slider (3).

3. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 1, characterized in that, The top of the connecting plate (1) is symmetrically provided with grooves (10), and the slider (3) and the positioning pin (5) slide in the grooves (10).

4. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 2, characterized in that, A knob (11) is rotatably connected to one side of one of the two connecting plates (1). The knob (11) is fixedly connected to the worm gear (8). The outer wall of the knob (11) is provided with anti-slip texture.

5. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 1, characterized in that, The connecting plate (1) is designed as a U-shaped structure. A set of straight holes (12) for connecting bolts (13) are designed and machined in the middle of the connecting plate (1). Bolts (13) are inserted into the straight holes (12). The connecting plate (1) is fixedly connected to the threaded hole of the three-coordinate equipment worktable through the bolts (13).

6. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 5, characterized in that, The bolt (13) is a standard part, and the locating pin (5) is a standard part.

7. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 1, characterized in that, The nylon support rod (2) is a cylindrical structure and is used to support the wheel hub being tested. The entire material is nylon.

8. The three-coordinate measuring machine tooling for wheel hub inspection according to claim 6, characterized in that, The top of the positioning pin (5) is fixedly connected with a pull ring (14).

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