Go-no go gauge testing fixture for measuring hub center hole
By integrating the go and no-go gauges into a single inspection tool, the problems of cumbersome inspection operations and insufficient finished product inspection in existing technologies are solved, achieving efficient and strict control of the center hole size.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-24
AI Technical Summary
Existing go and no-go gauges require the use of the go end and the no-go end sequentially when inspecting the center hole of a wheel hub. This operation is not simple enough, resulting in low inspection efficiency. Furthermore, the inspection at the finished product stage cannot prevent the influence of subsequent processes on the center hole size.
Design a go/no-go gauge inspection tool, wherein the go end and no-go end of the go/no-go gauge are integrated on the same handle, and inspection components with different tolerances are provided for the semi-finished and finished product stages. During inspection, it only needs to be inserted in one direction, and the combination of twisted engraving makes it easy to operate.
This improves the convenience and efficiency of inspection, ensures strict dimensional control of the center hole at each stage, and prevents subsequent processes from affecting the dimensions.
Smart Images
Figure CN224034529U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to center hole measuring tool detection technical field, concretely relates to a measure hub center hole's go no go gauge testing fixture. BACKGROUND
[0002] The hub is an important part of connecting the tire and the axle of the vehicle, the traditional hub is made of aluminum alloy casting or forging, the hub is composed of the rim, the spoke and the middle hub, the center hole is an important part of the middle hub, and is an important assembly part of assembling the axle of the automobile, and the center hole size measurement control is an important means of detecting whether the hub meets the design requirements of the hub assembly.
[0003] In the prior art, the three coordinates can meet the high-precision requirements of the center hole tolerance cooperation, but the efficiency is relatively low, when the measurement control frequency of the center hole is increased to 100%, the three coordinates cannot meet the high-efficiency requirements, in addition, the existing go no go gauge can also be used for the measurement of the center hole, but since the go end and the stop end of the go no go gauge are arranged at the two ends of the go no go gauge handle respectively, when the center hole of the aluminum alloy hub is detected, the go end of the go no go gauge needs to be used to detect the center hole first, and then the stop end of the go no go gauge is used to detect after the go end is detected to be qualified, and the stop end cannot enter, so that the port measurement is not simple and convenient, and the work efficiency is reduced. UTILITY MODEL CONTENTS
[0004] In view of the defects in the prior art, the utility model aims at providing a go no go gauge testing fixture for measuring the center hole of the hub, so as to solve the problem that the existing go no go gauge needs to use the go end and the stop end arranged at the opposite ends to detect respectively when the center hole is detected, the port measurement is not simple and convenient, and the work efficiency is low.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The utility model provides a go no go gauge testing fixture for measuring the center hole of the hub, which comprises a go no go gauge testing fixture assembly, the go no go gauge testing fixture assembly comprises a go no go gauge handle, a go end and a stop end, the stop end is arranged on the rear side of the go end along the measuring direction of the go end, and one end of the go no go gauge handle is fixedly connected with the stop end and the go end.
[0007] Further, the go no go gauge testing fixture assembly is a set, and the lower size tolerance in one go no go gauge testing assembly is greater than the lower size tolerance in another go no go gauge testing assembly.
[0008] Further, the go end and the stop end are integrally formed.
[0009] Furthermore, a threaded hole is provided at the center of the go end and the no-go end of the go / no-go gauge, and one end of the go / no-go gauge handle is threaded into the threaded hole.
[0010] Furthermore, the outer surface of the go / no-go gauge handle is provided with a twisted texture for easy gripping.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. By using the above-mentioned go / no-go gauge for measuring the center hole of the wheel hub, since both the go end and the no-go end of the go / no-go gauge are located at one end of the go / no-go gauge handle, during testing, the go end of the go / no-go gauge first enters the center hole to be tested. After the go end of the go / no-go gauge passes the test, it continues to be extended into the center hole to be tested. If the no-go end of the go / no-go gauge cannot enter, it means that the center hole has passed the test. Using the above-mentioned go / no-go gauge for testing only requires extending the go / no-go gauge in one direction, which is more convenient and faster than testing twice by turning around and changing the direction. The testing efficiency is also higher.
[0013] 2. Set up the above-mentioned go and no-go gauges as a set. The lower dimension tolerance of the go and no-go gauge inspection assembly in one set is greater than the lower dimension tolerance of the other go and no-go gauge inspection assembly. The go and no-go gauge inspection assembly with the larger lower dimension tolerance is used to inspect the size of the center hole in the semi-finished stage of the same product, while the go and no-go gauge inspection assembly with the smaller lower dimension tolerance is used to inspect the size of the center hole in the finished stage of the same product. This provides stricter control over the size of the center hole and can prevent and resolve the impact of subsequent processes such as painting on the size control of the center hole. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the go / no-go gauge for measuring the center hole of the wheel hub in an embodiment of this application.
[0015] Figure 2 This is an exploded view of the installation and assembly of the go / no-go gauge for measuring the center hole of the wheel hub in an embodiment of this application.
[0016] Figure 3 This is a schematic diagram of the go / no-go gauge used to inspect the center hole of finished aluminum alloy wheel hubs.
[0017] Figure 4 This is a schematic diagram of the go / no-go gauge used to inspect the center hole of a semi-finished aluminum alloy wheel hub.
[0018] Figure 5 This is a schematic diagram of the structure of the go / no-go gauge used in this application embodiment to inspect the center hole of the finished aluminum alloy wheel hub.
[0019] In the picture:
[0020] 10 - Go / No-Go gauge;
[0021] 20-aluminum alloy wheel hub;
[0022] 30-center hole;
[0023] 100-go-no-go gauge handle;
[0024] 200-go-no-go gauge go end;
[0025] 300-go-no-go gauge no-go end;
[0026] 400-thread hole;
[0027] 500-fluted. DETAILED DESCRIPTION
[0028] The utility model will be further explained in detail below in combination with the drawings of the specification and the specific embodiments.
[0029] Referring to the drawings Figure 1 to the drawings Figure 2 , the embodiment provides a go-no-go gauge gauge 10 for measuring the center hole of the wheel hub, which comprises a go-no-go gauge assembly, the go-no-go gauge assembly comprises a go-no-go gauge handle 100, a go-no-go gauge go end 200 and a go-no-go gauge no-go end 300, the go-no-go gauge no-go end 300 is arranged on the rear side of the go-no-go gauge go end 200 along the measuring direction of the go-no-go gauge go end 200, that is, when the go-no-go gauge go end 200 is arranged in front of the go-no-go gauge no-go end 300, the go-no-go gauge go end 200 enters the center hole of the product (for example, the center hole 30 of the aluminum alloy wheel hub 20) first, and the go-no-go gauge no-go end 300 contacts the center hole of the product after the go-no-go gauge go end 200 completely enters, and one end of the go-no-go gauge handle 100 is fixedly connected with the go-no-go gauge no-go end 300 and the go-no-go gauge go end 200.
[0030] In the embodiment, the go-no-go gauge go end 200 and the go-no-go gauge no-go end 300 are both arranged at one end of the go-no-go gauge handle 100, when detecting, the go-no-go gauge go end 200 enters the center hole to be detected first, after the go-no-go gauge go end 200 is detected qualified, continue to extend into the center hole to be detected, if the go-no-go gauge no-go end 300 cannot enter, it indicates that the center hole is detected qualified, and the go-no-go gauge gauge 10 is used for detection, which only needs to extend into the go-no-go gauge gauge 10 in a single direction, and does not need to change direction twice for detection, so that the operation is more convenient and fast, and the detection efficiency is higher.
[0031] In some embodiments, the go-no-go gauge go end 200 and the go-no-go gauge no-go end 300 are integrally formed.
[0032] Continuing to refer to the drawings Figure 1 and the drawings Figure 2As shown in the embodiment, a threaded hole 400 is formed through the front and back at the center of the go-no-go gauge go end 200 and the go-no-go gauge stop end 300, and one end of the go-no-go gauge handle 100 is threadedly installed in the threaded hole 400. In addition, a spiral texture spiral groove 500 is formed on the outer surface of the go-no-go gauge handle 100 to facilitate the operator to hold the go-no-go gauge handle 100.
[0033] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 As shown, in order to improve the existing detection process, only the detection control of the center hole in the finished product state is focused on, and the control of the center hole in the machining process of the hub is ignored. If the go-no-go gauge in the finished product state is used to control the detection of the center hole in the machining process, after the superimposed influence of the subsequent processes such as coating, due to the narrow tolerance band of the center hole size itself, a certain proportion of products will become unqualified in the finished product stage. To this end, the go-no-go gauge assembly in the embodiment is a set, and the lower size tolerance of one go-no-go gauge detection assembly is greater than that of another go-no-go gauge detection assembly. Among them, the go-no-go gauge detection assembly with a larger lower size tolerance is used for detecting the size of the center hole of the semi-finished product of the same product, and the go-no-go gauge detection assembly with a smaller lower size tolerance is used for detecting the size of the center hole of the finished product of the same product. The size control of the center hole is more strict, which can prevent and solve the influence of the subsequent processes such as coating on the size control of the center hole.
[0034] For example, in some embodiments, as shown in the accompanying drawings Figure 3 , the go-no-go gauge for detecting the center hole 30 of the finished aluminum alloy hub 20, the thickness of the go-no-go gauge go end 200 is designed to be 10 mm, the thickness of the go-no-go gauge stop end 300 is designed to be 6 mm, and a 2 mm isolation groove is left in the middle; the nominal size of the diameter of the go-no-go gauge go end 200 is designed according to the lower difference of the hub product; the diameter size tolerance of the go-no-go gauge go end 200 is controlled according to (-0+0.01); and the working surface roughness is 1.6.
[0035] The nominal size of the diameter of the go-no-go gauge stop end 300 is designed according to the upper difference of the hub product; the diameter size tolerance of the go-no-go gauge stop end 300 is controlled according to (-0.02+0); and the working surface roughness is 1.6.
[0036] As shown in the accompanying drawings Figure 4 , the go-no-go gauge for detecting the center hole 30 of the semi-finished aluminum alloy hub 20, the thickness of the go-no-go gauge go end 200 is designed to be 10 mm, the thickness of the go-no-go gauge stop end 300 is designed to be 6 mm, and a 2 mm isolation groove is left in the middle; the nominal size of the diameter of the go-no-go gauge go end 200 is designed according to the lower difference of the hub product+0.05 mm; the diameter size tolerance of the go-no-go gauge go end 200 is controlled according to (-0+0.01); and the working surface roughness is 1.6.
[0037] The diameter of the stop end 300 of the go-no-go gauge is controlled according to the upper tolerance of the finished hub product; the diameter tolerance band of the stop end 300 of the go-no-go gauge is controlled according to (-0.02+0); and the working surface roughness is 1.6.
[0038] Referring to the drawings Figure 5 As shown in the drawings, the go-no-go gauge needs to be checked by a three-coordinate before use to determine whether the working position meets the design requirements; before each use, it is checked whether the go-no-go gauge used in the corresponding stage is correct; the go-no-go gauge pass end 200 cannot enter the center hole, which indicates that the diameter of the center hole is too small and the center hole can be reprocessed to make it qualified; the go-no-go gauge stop end 300 enters the center hole, which indicates that the diameter of the center hole is too large, the product is unqualified and cannot be reprocessed.
[0039] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A go / no-go gauge for measuring the center hole of a wheel hub, characterized in that, The tool includes a go / no-go gauge assembly, which includes a go / no-go gauge handle, a go / no-go gauge end, and a go / no-go gauge stop end. The go / no-go gauge stop end is located on the rear side of the go / no-go gauge end, inserted along the measurement direction of the go / no-go gauge end. One end of the go / no-go gauge handle is fixedly connected to the go / no-go gauge stop end and the go / no-go gauge end.
2. The go / no-go gauge for measuring the center hole of a wheel hub according to claim 1, characterized in that, The go / no-go gauge inspection kit is a set, and the lower dimension tolerance in one go / no-go gauge inspection kit is greater than the lower dimension tolerance in the other go / no-go gauge inspection kit.
3. A go / no-go gauge for measuring the center hole of a wheel hub according to claim 1 or 2, characterized in that, The go end and the no-go end of the go / no-go gauge are manufactured as a single piece.
4. A go / no-go gauge for measuring the center hole of a wheel hub according to claim 3, characterized in that, The go and no-go gauges have threaded holes that extend from front to back at their center, and one end of the go / no-go gauge handle is threaded into the threaded hole.
5. A go / no-go gauge for measuring the center hole of a wheel hub according to claim 1, characterized in that, The outer surface of the go / no-go gauge handle is provided with a twisted pattern for easy gripping.