Steel ball neglected loading detection device of hub bearing

Abstract

The utility model discloses a steel ball neglected loading detection device for a hub bearing, which comprises a detection component, a detection component and a detection component, the tool is used for limiting a to-be-detected steel ball retainer and the detection assembly, so that the steel ball retainer is stable and immovable, each induction type proximity switch corresponds to each steel ball mounting groove of the steel ball retainer in a one-to-one manner, and a preset detection distance is kept between a probe of each induction type proximity switch and each steel ball mounting groove; according to the utility model, whether neglected steel balls exist in each steel ball mounting groove can be rapidly and accurately detected, and problems can be immediately positioned, so that rapid repair is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub bearing detection, in particular to a wheel hub bearing steel ball missing installation detection device. Background Art

[0002] Wheel hub bearings are one of the key parts of automobiles. Their main function is to bear weight and provide precise guidance for the rotation of the wheel hub. Their quality and performance have a vital impact on the safety and stable operation of the car. Wheel hub bearings are usually composed of an outer ring, a roller bearing, an inner ring and a cage. These parts work together to enable the wheel to rotate smoothly, reduce friction and resistance, and improve the driving efficiency of the vehicle.

[0003] like Figure 6 As shown, the ball cage is a key component in the wheel hub bearing. The ball cage is also called the bearing retainer. It is generally annular and has multiple ball grooves distributed to isolate the steel balls, guide the steel balls and keep them in the bearing to ensure the normal operation of the bearing.

[0004] In the production process of wheel hub bearings, the problem of missing steel balls has always been a problem that is difficult to completely avoid, which may lead to a decline in bearing performance and even cause safety accidents.

[0005] In order to solve this problem, it is necessary to detect the missing steel balls. The traditional detection method, as shown in the patent scheme with publication number CN110826681A, usually uses a rotating tool to scan and detect steel balls one by one. However, this method has the disadvantages of low detection efficiency, low accuracy, and difficulty in quickly locating the position of the missing steel balls. Especially in the large-scale production process, the limitations of the traditional method are more obvious and cannot meet the needs of efficient and accurate production. Summary of the invention

[0006] The purpose of the utility model is to provide a wheel hub bearing steel ball missing detection device to address the problems existing in the prior art, which can quickly and accurately detect whether there is a missing steel ball in each steel ball installation groove and can immediately locate the problem for rapid repair.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A device for detecting missing steel balls of a wheel hub bearing comprises: a detection component, comprising a plurality of inductive proximity switches; a tooling for limiting the position of a steel ball retainer to be detected and the detection component, so that the steel ball retainer is stable and immobile, and each of the inductive proximity switches corresponds to each steel ball installation groove of the steel ball retainer, and the probe of the inductive proximity switch maintains a predetermined detection distance with the steel ball installation groove.

[0009] The tooling limits the steel ball retainer through a limit platform on its upper portion; the inner ring of the steel ball retainer is horizontally sleeved on the limit platform and is coaxial with the limit platform.

[0010] The limiting platform is cylindrical, and a plurality of steel ball positioning grooves are evenly distributed on the peripheral side wall of the limiting platform. The plurality of steel ball positioning grooves correspond to the steel ball installation grooves one by one, respectively, and are used to limit the steel balls in the steel ball installation grooves to prevent the steel ball retainer from rotating.

[0011] A plurality of columnar grooves are distributed on the inner circumference of the tooling, and the plurality of columnar grooves are plugged into the proximity switches in a one-to-one correspondence, so as to limit the inductive proximity switches.

[0012] The columnar groove is vertically arranged, and the lower end thereof passes through the bottom of the tooling. The bottom of the tooling is provided with a circular groove, and the peripheral side wall of the circular groove intersects with all the columnar grooves.

[0013] The predetermined detection distance between the probe of the inductive proximity switch and the steel ball installation groove is 3 to 5 mm.

[0014] A mounting side plate is provided on the peripheral side of the tooling, and the mounting side plate is provided with a mounting hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the traditional solution, the rotational movement of the tooling may introduce mechanical errors and wear, affecting the detection accuracy; however, the device of the present application uses a static inductive proximity switch for detection, thereby avoiding this problem and improving the stability and accuracy of the detection;

[0017] 2. The traditional rotary scanning method requires detecting steel balls one by one, which is time-consuming. However, the device of the present application uses multiple inductive proximity switches, each of which corresponds to a steel ball installation slot, to achieve independent detection of each steel ball, which can quickly and accurately detect whether a steel ball is missing, and greatly improve the detection efficiency.

[0018] 3. When the traditional solution finds that the steel ball is missing, additional operations are required to determine the specific position where the steel ball is missing; however, each inductive proximity switch of the device of the present application corresponds to a specific steel ball position. Once a switch fails to detect the steel ball, the problem can be immediately located, facilitating quick repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a detection device in an embodiment of the present application, wherein a steel ball retainer to be detected is shown;

[0020] Figure 2 This is a schematic diagram of the structure of a detection device in one embodiment of the present application;

[0021] Figure 3 A cross-sectional view of a tool in one embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the positional relationship between the steel ball retainer and the inductive proximity switch in one embodiment of the present application;

[0023] Figure 5 This is a disassembled diagram of the tooling and the inductive proximity switch in one embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the structure of a steel ball retainer in an embodiment of the present application;

[0025] In the figure: 1. Inductive proximity switch; 2. Tooling; 3. Steel ball retainer; 4. Limit table; 401. Steel ball positioning groove; 5. Column groove; 6. Circular sink groove; 7. Install side panel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 6 As shown, the ball cage is a key component in the wheel hub bearing. The ball cage is also called the bearing retainer. It is generally annular and has multiple ball grooves distributed to isolate the steel balls, guide the steel balls and keep them in the bearing to ensure the normal operation of the bearing.

[0031] In the production process of wheel hub bearings, the problem of missing steel balls has always been a problem that is difficult to completely avoid, which may lead to a decline in bearing performance and even cause safety accidents.

[0032] In order to solve this problem, it is necessary to detect the missing steel balls. The traditional detection method usually uses a rotating tool to scan and detect the steel balls one by one. However, this method has the disadvantages of low detection efficiency, low accuracy, and difficulty in quickly locating the position of the missing steel balls. Especially in the large-scale production process, the limitations of the traditional method are more obvious and cannot meet the needs of efficient and accurate production.

[0033] In response to the above problems, Figures 1 to 6 As shown, the present application provides a wheel hub bearing steel ball missing detection device, comprising: a detection component, including a plurality of inductive proximity switches 1; a tool 2, used to limit the steel ball retainer 3 to be detected and the detection component, so that the steel ball retainer 3 is stable and immobile, and each inductive proximity switch 1 corresponds to each steel ball installation groove of the steel ball retainer 3 one by one, and the probe of the inductive proximity switch 1 maintains a predetermined detection distance with the steel ball installation groove.

[0034] Specifically, the steel ball holder 3 to be tested is placed in the tooling 2, and after the calibration is completed, when each inductive proximity switch 1 detects a steel ball, an electrical signal is sent to the host, and the steel ball missing detection is qualified. When a steel ball is missing, individual inductive proximity switches 1 will not detect the steel ball and will not send an electrical signal to the host, and the steel ball missing detection is unqualified, and the host displays the corresponding position NG.

[0035] An inductive proximity switch is a common metal inductive sensor that can trigger a signal by sensing the proximity of a metal object. When it detects a metal object within a set detection distance, it will generate an electrical signal to detect the metal object. For example, the M12 cylindrical inductive proximity switch and the M8 inductive metal proximity sensor.

[0036] Specifically in this embodiment, the precise correspondence between the inductive proximity switch 1 and the steel ball mounting groove, and the predetermined detection distance maintained between the probe and the mounting groove, make the detection process fast and accurate, greatly reducing the possibility of false detection and missed detection.

[0037] In traditional solutions, the rotational movement of the tooling may introduce mechanical errors and wear, affecting the detection accuracy; however, the device of this embodiment performs detection through a static inductive proximity switch, thereby avoiding this problem and improving the stability and accuracy of the detection.

[0038] The traditional rotary scanning method requires detecting the steel balls one by one, which is time-consuming. However, the device of this embodiment adopts multiple inductive proximity switches 1, each inductive proximity switch 1 corresponds to a steel ball installation slot, to achieve independent detection of each steel ball, which can quickly and accurately detect whether the steel ball is missing and greatly improve the detection efficiency.

[0039] When the traditional solution finds that the steel ball is missing, additional operations are required to determine the specific position where the steel ball is missing; however, each inductive proximity switch 1 of the device of this embodiment corresponds to a specific steel ball position. Once a switch fails to detect the steel ball, the problem can be immediately located, facilitating quick repair.

[0040] In some embodiments, the tool 2 limits the steel ball holder 3 through the limit platform 4 on its upper part; the inner ring of the steel ball holder 3 is horizontally sleeved on the limit platform 4 and is coaxial with the limit platform 4. This design ensures the stability and position accuracy of the steel ball holder 3 during the detection process.

[0041] In some embodiments, the limiting platform 4 is cylindrical, and a plurality of steel ball positioning grooves 401 are evenly spaced on the peripheral side wall of the limiting platform 4. The plurality of steel ball positioning grooves 401 correspond to the steel ball installation grooves one by one, and are used to limit the steel balls in the steel ball installation grooves to prevent the steel ball holder 3 from rotating. The precise correspondence between the steel balls and the steel ball positioning grooves 401 prevents the steel ball holder 3 from rotating during the detection process, further ensuring the accuracy and reliability of the detection.

[0042] In some embodiments, a plurality of columnar grooves 5 are distributed on the inner circumference of the tooling 2, and the plurality of columnar grooves 5 are plugged into the proximity switch 1 in a one-to-one correspondence to limit the proximity switch 1. Through the design of the columnar grooves 5, the inductive proximity switch 1 can be accurately positioned and fixed inside the tooling 2, thereby ensuring the accurate correspondence between the inductive proximity switch 1 and the steel ball installation groove during the detection process, and the distance between the probe and the steel ball installation groove can be kept within a predetermined detection range, thereby improving the accuracy of the detection.

[0043] In some embodiments, the columnar groove 5 is vertically arranged, and the lower end passes through the bottom of the tooling 2. The bottom of the tooling 2 is provided with a circular groove 6, and the peripheral side wall of the circular groove 6 intersects with all the columnar grooves 5. The vertically arranged columnar groove 5 and the bottom penetration design make it easy to insert and remove the proximity switch 1 from the bottom of the tooling 2, simplifying the installation and disassembly process. The intersection design of the circular groove 6 and the columnar groove 5 provides a guide path for the insertion of the proximity switch 1, ensuring that the proximity switch 1 can be accurately inserted into the columnar groove 5, avoiding deviation or misalignment during installation.

[0044] In some embodiments, the predetermined detection distance between the probe of the inductive proximity switch 1 and the steel ball installation slot is 3, 4 or 5 mm. Preferably, the distance between the probe of the inductive proximity switch 1 and the steel ball installation slot is set to 4 mm to ensure that the inductive proximity switch 1 has high sensitivity within this distance.

[0045] In some embodiments, a mounting side plate 7 is provided on the peripheral side of the tool 2, and the mounting side plate is provided with mounting holes. Through the mounting holes on the mounting side plate 7, the tool 2 can be firmly fixed to the work station to prevent it from moving or shaking during the detection process.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel hub bearing steel ball missing detection device, characterized in that: include: A detection component, comprising a plurality of inductive proximity switches (1); The tooling (2) is used to limit the steel ball holder (3) to be tested and the detection component, so that the steel ball holder (3) is stable and immobile, and each of the inductive proximity switches (1) corresponds to each of the steel ball installation slots of the steel ball holder (3) one by one, and the probe of the inductive proximity switch (1) maintains a predetermined detection distance with the steel ball installation slot.

2. The device for detecting missing steel balls of a hub bearing according to claim 1, characterized in that: The tooling (2) limits the position of the steel ball retainer (3) via a limiting platform (4) on its upper portion; the inner ring of the steel ball retainer (3) is horizontally sleeved on the limiting platform (4) and is coaxial with the limiting platform (4).

3. The device for detecting missing steel balls of a hub bearing according to claim 2, characterized in that: The limiting platform (4) is cylindrical, and a plurality of steel ball positioning grooves (401) are evenly distributed on the peripheral side wall of the limiting platform (4). The plurality of steel ball positioning grooves (401) correspond to the steel ball installation grooves one by one, respectively, and are used to limit the steel balls in the steel ball installation grooves to prevent the steel ball retaining frame (3) from rotating.

4. The device for detecting missing steel balls of a hub bearing according to claim 1, characterized in that: A plurality of columnar grooves (5) are distributed on the inner circumference of the tooling (2), and the plurality of columnar grooves (5) are plugged into the proximity switches (1) in a one-to-one correspondence, and are used to limit the position of the inductive proximity switches (1).

5. The device for detecting missing steel balls of a hub bearing according to claim 4, characterized in that: The columnar groove (5) is vertically arranged, and the lower end thereof passes through the bottom of the tooling (2). The bottom of the tooling (2) is provided with a circular groove (6), and the peripheral side wall of the circular groove (6) intersects with all the columnar grooves (5).

6. The device for detecting missing steel balls of a hub bearing according to claim 1, characterized in that: The predetermined detection distance between the probe of the inductive proximity switch (1) and the steel ball installation groove is 3 to 5 mm.

7. The device for detecting missing steel balls of a hub bearing according to claim 1, characterized in that: A mounting side plate (7) is provided on the peripheral side of the tooling (2), and the mounting side plate is provided with mounting holes.

Images