Detection tool

By designing a multifunctional detection fixture, multiple probes and sensors are used to accurately detect snap rings and gaskets, solving the problem of difficulty in judging the installation status in existing technologies and improving the manufacturing reliability of mechanical transmission mechanisms.

CN223664015UActive Publication Date: 2025-12-12ROBERT BOSCH AUTOMOTIVE STEERING JINAN CO LTD
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Patent Information

Application Number
CN202520062528.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2025-12-12
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

In mechanical transmission mechanisms such as bevel gear transmission boxes, existing technologies struggle to effectively detect whether snap rings and washers are installed.

Method used

Design a detection fixture comprising multiple probes (the first probe is used to detect the gasket, the second probe is used to detect the snap ring, the third probe is used to locate the surface, and the fourth probe is used to assist in determining the snap ring installation status, achieving accurate detection through a proximity switch or a contact sensor).

Benefits of technology

This enables accurate judgment of the installation status of snap rings and washers, improving the reliability and efficiency of the manufacturing process.

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Abstract

The utility model discloses a detection tool. The detection tool comprises a first detection head (1), a second detection head (2) and a third detection head (3), and the second detection head (2) is used for detecting the snap spring. According to the detection tool, whether the snap spring and the gasket are installed or not can be detected.
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Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing, and more specifically, to a detection tooling. Background Technology

[0002] In mechanical transmission mechanisms, such as bevel gear transmissions, circlips and washers are provided around the shaft. During the manufacturing process, it is possible for circlips and / or washers to be not installed. Utility Model Content

[0003] The main technical problem this application aims to solve is how to detect whether the retaining ring and gasket are installed.

[0004] To address the aforementioned technical problems, this application provides a detection tooling, comprising:

[0005] A first probe, used for detecting a gasket; and

[0006] The second probe is used to detect the snap ring.

[0007] According to one aspect of this application, the detection fixture includes a third probe head for detecting a positioning surface.

[0008] According to one aspect of this application, the detection fixture includes a plurality of third probes.

[0009] According to one aspect of this application, the detection fixture includes a fourth probe for detecting a snap ring.

[0010] According to a detection fixture proposed in one aspect of this application, the fourth probe is configured in the height direction to be less than or equal to the second probe.

[0011] According to a detection fixture proposed in one aspect of this application, the fourth probe is arranged close to the first probe.

[0012] According to a detection fixture proposed in one aspect of this application, one or more of the first detector head, the second detector head, the third detector head, and the fourth detector head are configured as proximity switches or contact sensors.

[0013] According to one aspect of this application, the first probe head is configured to be larger than the second probe head in the height direction.

[0014] According to one aspect of this application, the detection fixture includes a handle.

[0015] According to one aspect of this application, the detection fixture includes an output interface for outputting detection results.

[0016] According to the technical solution of this application, the gasket is detected by a first probe and the retaining ring is detected by a second probe, thereby detecting whether the retaining ring and the gasket are installed. Attached Figure Description

[0017] The disclosure of this application is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Wherein:

[0018] Figure 1 The schematic illustration shows a detection fixture proposed according to one embodiment of this application. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of this application.

[0020] Please see Figure 1 As shown, a detection fixture according to a specific embodiment of this application includes a first detection head 1 and a second detection head 2. The first detection head 1 is used to detect a gasket, and the second detection head 2 is used to detect a retaining ring. The first detection head 1 can be configured to determine that a gasket is installed when the first detection head 1 contacts the gasket or the distance between the first detection head 1 and the gasket is less than a threshold. The second detection head 2 can be configured to determine that a retaining ring is installed when the second detection head 2 contacts the retaining ring or the distance between the second detection head 2 and the retaining ring is less than a threshold.

[0021] In the installed state, the retaining ring is positioned above the gasket. Correspondingly, the first probe 1 is constructed to be larger than the second probe 2 in the height direction (i.e., the axial direction of the retaining ring), so that the first probe 1 can smoothly pass over the retaining ring to detect the gasket. A notch exists in the circumferential direction of the retaining ring, allowing the first probe 1 to probe the gasket from top to bottom through this notch. For example, the operator can visually adjust the position of the probe fixture so that the first probe 1 passes through the notch in the retaining ring to detect the gasket. When the first probe 1 is constructed to be telescopic, the operator can first bring the probe fixture close to the retaining ring, and then rotate the probe fixture. When the first probe 1 extends into the notch in the retaining ring, it will emit a sound or vibration to alert the operator, thereby ensuring that the first probe 1 is in the correct detection position.

[0022] In this technical solution, the first probe 1 is used to detect the gasket and the second probe 2 is used to detect the retaining ring, thereby detecting whether the retaining ring and the gasket are installed.

[0023] Furthermore, the detection fixture includes a third probe 3, which is used to detect a positioning surface, and the positioning surface is used to assist in the positioning of the detection fixture. When the detection fixture has completed its positioning, the first probe 1 and the second probe 2 can perform detection more accurately. The third probe 3 can be configured to determine that the detection fixture has completed its positioning when it comes into contact with the positioning surface or the distance between the third probe 3 and the positioning surface is less than a threshold.

[0024] The positioning surface can be located on the component where the retaining ring and washer are mounted, such as the housing of a gearbox, in which the shaft surrounded by the retaining ring and washer is also mounted. For example, the positioning surface is located on the end face of the gearbox housing, which is higher than the mounting position of the retaining ring and washer. A mounting surface corresponding to the end face exists in the detection fixture, and the third probe 3 is located on this mounting surface. An exemplary detection process is as follows: first, positioning is determined by the third probe 3, and then the first probe 1 and the second probe 2 are used to detect whether the retaining ring and washer are installed.

[0025] The detection fixture may include multiple third probes, such as two, three, or four third probes. By using multiple third probes positioned at different locations, it is possible to more accurately detect whether the detection fixture has completed its positioning.

[0026] Furthermore, the detection fixture includes a fourth detection head 4, which is also used to detect the retaining ring. The fourth detection head 4 and the second detection head 2 are arranged in different positions, and the fourth detection head 4 cooperates with the second detection head 2 to determine whether the retaining ring is installed in place.

[0027] For example, the fourth probe 4 is configured to be equal in height to the second probe 2. If the second probe 2 and the fourth probe 4 detect the retaining ring sequentially with a time interval, it indicates that the retaining ring is in different positions axially and is not installed correctly; if the second probe 2 and the fourth probe 4 detect the retaining ring simultaneously, it indicates that the retaining ring is in the same position axially and is installed correctly.

[0028] For example, the fourth probe 4 is configured to be smaller in height than the second probe 2. If both the second probe 2 and the fourth probe 4 detect the retaining ring, it indicates that the retaining ring is in different axial positions and is not properly installed; if the second probe 2 detects the retaining ring but the fourth probe 4 does not, it indicates that the retaining ring is in the same axial position and is properly installed.

[0029] The fourth probe 4 can be arranged closer to the first probe 1 than the second probe 2. When the retaining ring is not properly installed, it is prone to warping near the notch. Since the first probe 1 probes the gasket through the notch in the retaining ring, by arranging the fourth probe 4 close to the first probe 1, the fourth probe 4 is also close to the notch of the retaining ring, i.e., the part where the retaining ring is prone to warping, so that the fourth probe 4 can easily detect when the retaining ring is not properly installed (especially warped).

[0030] One or more of the first detector 1, the second detector 2, the third detector 3, and the fourth detector 4 can be configured as a proximity switch. One or more of the first detector 1, the second detector 2, the third detector 3, and the fourth detector 4 can also be configured as a contact sensor.

[0031] If one or more of the first probe 1, the second probe 2, the third probe 3, and the fourth probe 4 are telescopic, then the preceding comparisons of the individual probes in the height direction are based on their initial state (i.e., the unretracted state).

[0032] Furthermore, the detection fixture may also include a handle 5 for easy gripping by the operator. The handle 5 may have roughened sections to ensure a firm grip by the operator.

[0033] An output interface may be constructed at the end of the handle 5 for outputting the detection results. The signal output terminals of the first probe 1, the second probe 2, the third probe 3, and the fourth probe 4 are connected to the output interface, for example, via signal lines. The output interface outputs the signals from each probe to a controller via wired or wireless means. The controller may be constructed inside or outside the detection fixture. The controller determines whether the gasket and retaining ring are properly installed based on the signals from each probe, and then outputs the determination result in a certain manner. For example, if the gasket and retaining ring are properly installed, the indicator light is controlled to output a green light; if the gasket and retaining ring are not installed or are not properly installed, the indicator light is controlled to output a red light.

[0034] An exemplary process for using the detection fixture according to this embodiment is as follows: First, scan the material code of the retaining ring and the gasket using a barcode scanner; then install the retaining ring and the gasket; then use the detection fixture to detect whether the retaining ring and the gasket are installed and in place; if the retaining ring and the gasket are installed and in place, proceed with the subsequent operation; if the retaining ring and the gasket are not installed or are not in place, check and reinstall them.

Claims

1. A detection fixture, characterized in that, The detection fixture includes: A first probe (1) is used to detect a gasket; and The second probe (2) is used to detect the snap ring.

2. The detection fixture according to claim 1, characterized in that, The detection fixture includes a third detection head (3), which is used to detect the positioning surface.

3. The detection fixture according to claim 2, characterized in that, The detection fixture includes multiple third detection heads (3).

4. The detection fixture according to claim 2, characterized in that, The detection fixture includes a fourth detection head (4), which is used to detect snap rings.

5. The detection fixture according to claim 4, characterized in that, The fourth probe (4) is configured in the height direction to be less than or equal to the second probe (2).

6. The detection fixture according to claim 4, characterized in that, The fourth probe (4) is positioned close to the first probe (1).

7. The detection fixture according to claim 4, characterized in that, One or more of the first probe (1), the second probe (2), the third probe (3) and the fourth probe (4) are configured as proximity switches or contact sensors.

8. The detection fixture according to claim 1, characterized in that, The first probe (1) is configured to be larger than the second probe (2) in the height direction.

9. The detection fixture according to claim 1, characterized in that, The detection tooling includes a handle (5).

10. The detection fixture according to claim 1, characterized in that, The detection fixture includes an output interface, which is used to output the detection results.