Threaded hole detection device with floating function

By designing a thread hole inspection device with a floating function, the problems of low inspection efficiency and high labor cost of wheel hub bearing thread holes were solved, realizing automated and high-precision thread hole inspection, adapting to thread hole position deviations, and improving inspection efficiency and accuracy.

CN224480101UActive Publication Date: 2026-07-10BARNETT MACHINERY TECHNOLOGY (TAICANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BARNETT MACHINERY TECHNOLOGY (TAICANG) CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing technologies for inspecting threaded holes in automotive wheel hub bearings are inefficient and costly in terms of labor, making it difficult to achieve automated and high-precision inspection.

Method used

Design a threaded hole inspection device with floating function, including a mounting bracket, a mounting base, a small threaded hole inspection mechanism and a large threaded hole inspection mechanism. The mounting base is raised and lowered by a lifting drive mechanism. Combined with a drive motor and a universal coupling, the thread plug gauge is ensured to float horizontally in the lower shell to adapt to the positional deviation of the threaded hole and realize automatic inspection.

Benefits of technology

It enables automatic detection of small and large threaded holes on wheel hub bearings, improving detection efficiency, reducing labor costs, and increasing detection accuracy.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a threaded hole detection device with a floating function, including a mounting frame, a mounting base, a small threaded hole detection mechanism, a large threaded hole detection mechanism, and a mounting base lifting drive mechanism. The mounting base is driven to rise and fall by the mounting base lifting drive mechanism. The small threaded hole detection mechanism includes a first drive motor and a small threaded hole detection component. The large threaded hole detection mechanism includes a second drive motor, multiple connecting parts, and multiple large threaded hole detection components. Both the small threaded hole detection component and the large threaded hole detection component include an upper shell, a lower shell, a connecting rod, a connecting sleeve, and a thread plug gauge. A gap is left between the upper end of the connecting sleeve and the inner wall of the lower shell. This utility model can automatically detect small threaded holes on wheel hub bearings and simultaneously automatically detect all large threaded holes on wheel hub bearings, with high detection efficiency, reduced labor costs, high detection accuracy, and good results.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical device technology, and in particular to a threaded hole detection device with floating function. Background Technology

[0002] Car tire wheel hub bearings typically have 5 large threaded holes and 1 small threaded hole. To ensure product quality, each threaded hole needs to be inspected to ensure it is up to standard. The existing inspection method is mainly to manually screw a thread gauge into each threaded hole for inspection, which is inefficient and costly. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a threaded hole detection device with floating function, which can automatically detect small threaded holes on wheel hub bearings, and can also automatically detect all large threaded holes on wheel hub bearings at the same time. It has high detection efficiency, reduces labor costs, and has high detection accuracy and good effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a threaded hole detection device with floating function is provided. The threaded hole detection device includes a mounting frame, a mounting base, a small threaded hole detection mechanism, a large threaded hole detection mechanism, and a mounting base lifting drive mechanism. The mounting base lifting drive mechanism is mounted on the mounting frame, and the small threaded hole detection mechanism and the large threaded hole detection mechanism are both mounted on the mounting base. The mounting base is driven to rise and fall by the mounting base lifting drive mechanism.

[0005] The small thread hole detection mechanism includes a first drive motor and a small thread detection component; the large thread hole detection mechanism includes a second drive motor, multiple connectors and multiple large thread detection components, the upper end of the connector is connected to the power output end of the second drive motor, and the lower end of the connector is connected to the upper end of the large thread detection component.

[0006] Both the small thread detection assembly and the large thread detection assembly include an upper shell, a lower shell, a connecting rod, a connecting sleeve, and a thread plug gauge. The upper shell and the lower shell are assembled together. The upper end of the connecting rod is connected to the power output end of the first drive motor or the second drive motor. The lower end of the connecting rod is fixed together with the upper end of the connecting sleeve. The thread plug gauge is fixedly connected inside the connecting sleeve. A gap is left between the upper end of the connecting sleeve and the inner wall of the lower shell.

[0007] Furthermore, the connecting component is a universal coupling, a large gear is installed at the end of the main shaft of the second drive motor, and multiple small gears are provided around the large gear. The center of the small gears is connected to the upper end of the universal coupling, and the large gear and the small gears mesh.

[0008] Furthermore, bearings 1326 are installed between the upper and lower ends of the connecting rod and the upper shell; bearings are also provided between the connecting sleeve and the lower shell.

[0009] Furthermore, the upper end of the connecting sleeve is provided with a hanging platform, which is hung on the step of the constricted opening of the lower shell; a gasket is provided directly between the hanging platform and the step.

[0010] Furthermore, the inner diameter of the upper end of the lower shell is 0.6-1.4 mm larger than the outer diameter of the mounting platform.

[0011] Furthermore, the mounting base lifting drive mechanism includes a mounting base lifting drive cylinder and a push rod. The upper end of the push rod is fixed to the power output end of the mounting base lifting drive cylinder, and the lower end of the push rod is fixed to the mounting base.

[0012] The beneficial effects of this utility model are:

[0013] This utility model has an ingenious structural design, which can automatically detect small threaded holes on wheel hub bearings, as well as all large threaded holes on wheel hub bearings at the same time. It has high detection efficiency, reduces labor costs, and has high detection accuracy and good results.

[0014] During the machining process, the large threaded hole on the wheel hub bearing will inevitably have a positional deviation. Making the connecting sleeve and the thread plug gauge so that they can float horizontally within the lower shell by a certain distance can solve the above problem. As long as it is within a certain offset error range, the thread plug gauge can be smoothly inserted into the large or small threaded hole for inspection.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the small threaded hole detection mechanism of this utility model;

[0018] Figure 3 This is an axial sectional view of the small threaded hole detection mechanism of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the second drive motor of this utility model;

[0020] The parts in the attached diagram are labeled as follows:

[0021] Thread hole detection device 1, mounting bracket 11, mounting base 12, small thread hole detection mechanism 13, first drive motor 131, small thread detection assembly 132, upper shell 1321, lower shell 1322, connecting rod 1323, connecting sleeve 1324, thread plug gauge 1325, bearing 1326, hanging platform 13241, gasket 1327, large thread hole detection mechanism 14, second drive motor 141, large thread detection assembly 142, large gear 143, small gear 144, mounting base lifting drive mechanism 15, mounting base lifting drive cylinder 151, push rod 152. Detailed Implementation

[0022] The following specific embodiments illustrate the detailed implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in this utility model.

[0023] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this utility model.

[0024] Example: A threaded hole detection device with floating function, such as Figures 1 to 4 As shown, the threaded hole detection device 1 includes a mounting frame 11, a mounting base 12, a small threaded hole detection mechanism 13, a large threaded hole detection mechanism 14, and a mounting base lifting drive mechanism 15. The mounting base lifting drive mechanism is mounted on the mounting frame, and the small threaded hole detection mechanism and the large threaded hole detection mechanism are both mounted on the mounting base. The mounting base is lifted and lowered by the mounting base lifting drive mechanism.

[0025] The small thread hole detection mechanism 13 includes a first drive motor 131 and a small thread detection component 132; the large thread hole detection mechanism 14 includes a second drive motor 141, multiple connectors (not shown in the figure) and multiple large thread detection components 142, the upper end of the connector is connected to the power output end of the second drive motor, and the lower end of the connector is connected to the upper end of the large thread detection component.

[0026] Both the small thread detection assembly and the large thread detection assembly include an upper shell 1321, a lower shell 1322, a connecting rod 1323, a connecting sleeve 1324, and a thread plug gauge 1325. The upper shell and the lower shell are assembled together. The upper end of the connecting rod is connected to the power output end of the first drive motor or the second drive motor. The lower end of the connecting rod is fixed together with the upper end of the connecting sleeve. The thread plug gauge is fixedly connected inside the connecting sleeve. A gap is left between the upper end of the connecting sleeve and the inner wall of the lower shell.

[0027] In this embodiment, the inner diameter of the upper end of the lower shell is 0.6-1.4 mm larger than the outer diameter of the mounting platform. That is, the width of the gap is 0.3-0.7 mm. This dimension is reasonably designed, taking into account the possible positional deviation of the large threaded hole on the wheel hub bearing.

[0028] During the machining process, the large threaded hole on the wheel hub bearing will inevitably have a positional deviation. Making the connecting sleeve and the thread plug gauge so that they can float horizontally within the lower shell by a certain distance can solve the above problem. As long as it is within a certain offset error range, the thread plug gauge can be smoothly inserted into the large or small threaded hole for inspection.

[0029] In this embodiment, the connecting component is a universal joint (such as the WSP-GA telescopic universal joint coupling produced by Shanghai Songming Transmission Machinery Co., Ltd., but not limited to this). A large gear 143 is installed at the end of the main shaft of the second drive motor, and multiple small gears 144 are provided around the large gear. The center of the small gears is connected to the upper end of the universal joint, and the large gear and the small gears mesh. The connecting component can also adopt other structures, such as a straight rod, which can transmit the power of the second drive motor to the large thread detection component to drive the thread plug gauge to rotate. As shown in Figure 1, the upper end of the universal joint is connected at position A, and the lower end is connected at position B.

[0030] In this embodiment, bearings 1326 are installed between the upper and lower ends of the connecting rod and the upper shell; a bearing is also provided between the connecting sleeve and the lower shell. This ensures smooth movement.

[0031] In this embodiment, the upper end of the connecting sleeve is provided with a hanging platform 13241, which is hung on the step of the constricted opening of the lower shell; a gasket 1327 is provided directly between the hanging platform and the step.

[0032] In this embodiment, the mounting seat lifting drive mechanism 15 includes a mounting seat lifting drive cylinder 151 and a push rod 152. The upper end of the push rod is fixed to the power output end of the mounting seat lifting drive cylinder, and the lower end of the push rod is fixed to the mounting seat.

[0033] The working principle and process of this utility model:

[0034] The wheel hub bearing has a small threaded hole and five large threaded holes. The wheel hub bearing to be inspected is placed on the workbench and positioned (this is not the scope of this utility model and will not be described in detail). The mounting base lifting drive cylinder drives the mounting base to descend into place. Then, the first drive motor drives the small thread detection component to position itself to inspect the small threaded hole. Then, the wheel hub bearing is moved to directly below the large threaded hole detection mechanism through other handling mechanisms. Then, the second drive motor drives multiple large threaded hole detection components to position themselves to simultaneously inspect the large threaded holes.

[0035] The above description is merely an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A threaded hole detection device with floating function, characterized in that: The thread hole detection device (1) includes a mounting frame (11), a mounting base (12), a small thread hole detection mechanism (13), a large thread hole detection mechanism (14), and a mounting base lifting drive mechanism (15). The mounting base lifting drive mechanism is mounted on the mounting frame, and the small thread hole detection mechanism and the large thread hole detection mechanism are both mounted on the mounting base. The mounting base is lifted and lowered by the mounting base lifting drive mechanism. The small thread hole detection mechanism (13) includes a first drive motor (131) and a small thread detection component (132); the large thread hole detection mechanism (14) includes a second drive motor (141), multiple connectors and multiple large thread detection components (142), the upper end of the connector is connected to the power output end of the second drive motor, and the lower end of the connector is connected to the upper end of the large thread detection component. Both the small thread detection assembly and the large thread detection assembly include an upper shell (1321), a lower shell (1322), a connecting rod (1323), a connecting sleeve (1324), and a thread plug gauge (1325). The upper shell and the lower shell are assembled together. The upper end of the connecting rod is connected to the power output end of the first drive motor or the second drive motor. The lower end of the connecting rod is fixed together with the upper end of the connecting sleeve. The thread plug gauge is fixedly connected inside the connecting sleeve. A gap is left between the upper end of the connecting sleeve and the inner wall of the lower shell.

2. The threaded hole detection device with floating function according to claim 1, characterized in that: The connecting component is a universal coupling. A large gear (143) is installed at the end of the main shaft of the second drive motor. A plurality of small gears (144) are provided around the large gear. The center of the small gear is connected to the upper end of the universal coupling. The large gear and the small gear mesh.

3. The threaded hole detection device with floating function according to claim 1, characterized in that: Bearings (1326) are installed between the upper and lower ends of the connecting rod and the upper shell; bearings are also provided between the connecting sleeve and the lower shell.

4. The threaded hole detection device with floating function according to claim 1, characterized in that: The upper end of the connecting sleeve is provided with a hanging platform (13241), which is hung on the step of the constricted opening of the lower shell; a gasket (1327) is provided directly between the hanging platform and the step.

5. The threaded hole detection device with floating function according to claim 4, characterized in that: The inner diameter of the upper end of the lower shell is 0.6-1.4 mm larger than the outer diameter of the mounting platform.

6. The threaded hole detection device with floating function according to claim 1, characterized in that: The mounting seat lifting drive mechanism (15) includes a mounting seat lifting drive cylinder (151) and a push rod (152). The upper end of the push rod is fixed to the power output end of the mounting seat lifting drive cylinder, and the lower end of the push rod is fixed to the mounting seat.