Hub contour measuring instrument

Abstract

The utility model relates to the technical field of contour measuring instruments, and discloses a hub contour measuring instrument which comprises a base, and a measuring instrument body is fixedly installed on the right side of the top of the base. According to the utility model, the clamping assembly is arranged, the center of the hub passes through the limiting rod and is placed on the limiting rod, then the driving motor is started, and the driving motor drives the rotating disc to rotate, so that the connecting rod drives the clamping block to clamp and fix the hub through the sliding block; the four clamping blocks are driven at the same time to clamp hubs, the hubs of different sizes can be rapidly clamped, due to the existence of the sliding grooves and the sliding blocks, the clamping blocks move rapidly, the time of early-stage clamping preparation work is effectively shortened when the hubs are detected, the working efficiency is improved, and the labor intensity of workers is reduced. And the moving distances of the four clamping blocks are fixed under the limitation of the connecting rods, so that the clamped hub is always kept at the central position, and the practicability is improved.

Description

Technical Field

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

[0002] The wheel hub profile measuring instrument is mainly used to measure the generatrix shape and cross-sectional profile shape of the wheel hub, such as key parameters like protrusion, contact angle, and surface curvature radius. During wheel hub manufacturing and quality control, this instrument ensures that the wheel hub's profile accuracy meets design requirements, thereby improving product quality and reliability. By accurately measuring the wheel hub's profile shape, it ensures that the wheel hub's fit and performance meet design requirements, thus improving the overall vehicle's safety and comfort.

[0003] In the existing technology, when using a contour measuring instrument, in order to prevent the wheel hub from moving, a clamp is required to hold and fix the wheel hub during measurement. Currently, when clamping and fixing wheel hubs of different sizes, since the wheel hub is round, it is necessary to adjust the clamp in multiple directions at the same time to fix it firmly. The adjustment is relatively complicated, inefficient, and impractical. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to solve the problem that in the existing technology, when using a contour measuring instrument, in order to prevent the wheel hub from moving, a clamp is needed to hold and fix the wheel hub during measurement. Currently, when clamping and fixing wheel hubs of different sizes, since the wheel hub is round, it is necessary to adjust the clamp in multiple directions at the same time to fix it firmly, which is complicated, inefficient and impractical. Therefore, a wheel hub contour measuring instrument is proposed.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0008] A wheel hub profile measuring instrument includes a base, a measuring instrument body is fixedly mounted on the top right side of the base, a mounting plate is fixedly mounted on the top left side of the base, mounting brackets are symmetrically mounted on the side of the mounting plate near the measuring instrument body, clamping plates are fixedly mounted on the two mounting brackets, clamping components are provided on the clamping plates, and a drive component for rotating the clamping components is provided on the mounting plate.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Preferably, the clamping assembly includes sliding grooves, and four sliding grooves are arranged in a circular array on the clamping disk. Sliding blocks are slidably installed inside each of the four sliding grooves. Clamping blocks are fixedly installed on the side of each of the four sliding blocks facing the measuring instrument body. Connecting rods are rotatably installed on the sliding blocks. A rotating disk is rotatably installed on the clamping disk. The other ends of the four connecting rods are rotatably connected to the rotating disk.

[0011] Preferably, the drive assembly includes a drive motor, the drive motor is fixedly mounted on the mounting plate, and the output end of the drive motor passes through the mounting plate and is fixedly connected to the rotating disk.

[0012] Preferably, the mounting bracket has a movable groove, and the connecting rod passes through the movable groove to connect with the sliding block and the rotating disk.

[0013] Preferably, a limiting rod is fixedly installed on the side of the clamping disc facing the measuring instrument body, and the limiting rod is located at the center of the clamping disc.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] This invention features a clamping assembly. The center of the wheel hub is placed on the limiting rod, and then the drive motor is activated. The drive motor rotates the rotating disk, causing the connecting rod to drive the clamping blocks to clamp and fix the wheel hub via the sliding block. After the measuring instrument body completes the wheel hub inspection, the four clamping blocks simultaneously clamp the wheel hub, enabling rapid clamping of wheel hubs of different sizes. The presence of the sliding groove and the sliding block allows the clamping blocks to move quickly, effectively reducing the time spent on the initial clamping preparation work when inspecting the wheel hub and improving work efficiency. Furthermore, the fixed movement distance of the four clamping blocks under the limitation of the connecting rod ensures that the clamped wheel hub always remains in the center position, improving practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front view sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the right side of the clamping disc structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the left side of the clamping disc structure of this utility model.

[0021] In the diagram: 1. Base; 2. Measuring instrument body; 3. Mounting plate; 4. Mounting bracket; 41. Movable slot; 5. Clamping plate; 6. Clamping assembly; 61. Sliding slot; 62. Sliding block; 63. Clamping block; 64. Connecting rod; 65. Rotating disk; 7. Drive assembly; 71. Drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the embodiments, by Figure 1-4 A wheel hub profile measuring instrument is provided, comprising a base 1, a measuring instrument body 2 fixedly mounted on the top right side of the base 1, a mounting plate 3 fixedly mounted on the top left side of the base 1, mounting brackets 4 symmetrically mounted on the side of the mounting plate 3 near the measuring instrument body 2, clamping plates 5 fixedly mounted on the two mounting brackets 4, clamping components 6 provided on the clamping plates 5, and a drive component 7 for driving the clamping components 6 to rotate on the mounting plate 3.

[0024] Reference Figure 2-4 The clamping assembly 6 includes a sliding groove 61. The clamping disk 5 has four sliding grooves 61 arranged in a ring array. Sliding blocks 62 are slidably installed inside each of the four sliding grooves 61. Clamping blocks 63 are fixedly installed on the side of the four sliding blocks 62 facing the measuring instrument body 2. Connecting rods 64 are rotatably installed on the sliding blocks 62. A rotating disk 65 is rotatably installed on the clamping disk 5. The other ends of the four connecting rods 64 are rotatably connected to the rotating disk 65.

[0025] With the above structural setup, the drive assembly 7 drives the rotating disk 65 to rotate. When the rotating disk 65 rotates, the sliding block 62 is driven by the connecting rods 64 around it. The sliding block 62 moves along the sliding groove 61 and moves closer to each other. When the sliding block 62 moves, it drives the clamping block 63 to clamp and fix the hub from four directions, which is convenient for subsequent measurement.

[0026] Reference Figure 1-3 The drive assembly 7 includes a drive motor 71, which is fixedly mounted on the mounting plate 3. The output end of the drive motor 71 passes through the mounting plate 3 and is fixedly connected to the rotating disk 65.

[0027] With the above-mentioned structure, the drive motor 71 drives the rotating disk 65 to rotate, so that the connecting rod 64 drives the clamping block 63 to clamp and fix the wheel hub through the sliding block 62. After the measuring instrument body 2 completes the detection of the wheel hub, the drive motor 71 drives the rotating disk 65 to reverse and release the fixation of the wheel hub.

[0028] Reference Figure 2 The mounting bracket 4 has a movable groove 41, and the connecting rod 64 passes through the movable groove 41 to connect with the sliding block 62 and the rotating disk 65.

[0029] With the above structural design, the mounting bracket 4 creates space between the mounting plate 3 and the clamping plate 5, which facilitates the rotation of the rotating plate 65. At the same time, the movable groove 41 allows the connecting rod 64 to move without restriction.

[0030] Reference Figure 1-4 Among them, a limiting rod 51 is fixedly installed on the side of the clamping plate 5 facing the measuring instrument body 2, and the limiting rod 51 is located at the center of the clamping plate 5;

[0031] With the above structural design, the center of the wheel hub can be placed on the limiting rod 51 during testing, which restricts the placement position of the wheel hub and ensures that the position of the wheel hub will not be greatly displaced during subsequent clamping, thus ensuring the accuracy of the data obtained by the measuring instrument in subsequent testing.

[0032] Working principle:

[0033] Implementation steps for the first innovation point:

[0034] Step 1: When starting the test, place the center of the wheel hub through the limiting rod 51 to restrict the placement of the wheel hub. Then start the drive motor 71, which drives the rotating disk 65 to rotate. This causes the connecting rod 64 to drive the clamping block 63 through the sliding block 62 to clamp and fix the wheel hub. After the measuring instrument body 2 has completed the test on the wheel hub, the drive motor 71 drives the rotating disk 65 to reverse and release the fixation of the wheel hub.

[0035] Step 2: The measuring instrument body usually uses a sensor that contacts the surface of the wheel hub being measured. The internal drive mechanism of the instrument drives the sensor to slide at a constant speed along the surface being measured. The stylus senses the geometric changes of the surface being measured, generating displacement. This displacement causes a change in the inductance of the sensor's inductor coil, thereby generating an analog signal proportional to the contour of the surface being measured at the output of the phase-sensitive rectifier. This signal is amplified and converted into a digital signal, which enters the data acquisition system, where the computer analyzes and calculates the original contour.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheel hub profile measuring instrument, characterized in that: The device includes a base (1), a measuring instrument body (2) is fixedly installed on the top right side of the base (1), a mounting plate (3) is fixedly installed on the top left side of the base (1), mounting brackets (4) are symmetrically installed on the side of the mounting plate (3) close to the measuring instrument body (2), clamping plates (5) are fixedly installed on the two mounting brackets (4), clamping components (6) are provided on the clamping plates (5), and a drive component (7) is provided on the mounting plate (3) to drive the clamping components (6) to rotate.

2. The wheel hub profile measuring instrument according to claim 1, characterized in that: The clamping assembly (6) includes a sliding groove (61). Four sliding grooves (61) are arranged in a ring array on the clamping disk (5). Sliding blocks (62) are slidably installed inside each of the four sliding grooves (61). Clamping blocks (63) are fixedly installed on the side of the four sliding blocks (62) facing the measuring instrument body (2). Connecting rods (64) are rotatably installed on the sliding blocks (62). A rotating disk (65) is rotatably installed on the clamping disk (5). The other ends of the four connecting rods (64) are rotatably connected to the rotating disk (65).

3. The wheel hub profile measuring instrument according to claim 1, characterized in that: The drive assembly (7) includes a drive motor (71), which is fixedly mounted on the mounting plate (3). The output end of the drive motor (71) passes through the mounting plate (3) and is fixedly connected to the rotating disk (65).

4. A wheel hub profile measuring instrument according to claim 2, characterized in that: The mounting bracket (4) has a movable groove (41), and the connecting rod (64) passes through the movable groove (41) and connects to the sliding block (62) and the rotating disk (65).

5. A wheel hub profile measuring instrument according to claim 1, characterized in that: A limiting rod (51) is fixedly installed on the side of the clamping plate (5) facing the measuring instrument body (2), and the limiting rod (51) is located at the center of the clamping plate (5).

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