Detection mechanism for main bearing cap pin sleeve missing

Abstract

The utility model relates to mechanical manufacturing and automation detection technical field, specifically disclose a kind of whether the detection mechanism of main bearing cover pin bushing is missing, it include detection main part and detection component, detection main part is equipped with the detection entrance of bearing cover and the detection cavity being communicated with detection entrance;Detection component includes the first detection block and second detection block being arranged in detection cavity;Detection main part includes first side plate and second side plate, and detection cavity is arranged between first side plate and second side plate;First detection block and first side plate, second detection block and second side plate between are equipped with the through gap of bearing cover;The height of first detection block and second detection block is set and the height of pin bushing protruding from the bearing cover is compatible;Through physical limit type detection mechanism, utilize the height difference of detection block and bearing cover, form mechanical blocking mechanism, when pin bushing is missing, bearing cover cannot pass through detection cavity, to realize intuitive reliable missing determination, avoid the subjectivity and visual error of artificial detection.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing and automated testing technology, and in particular to a testing mechanism for whether a main bearing cover pin sleeve is missing. Background Technology

[0002] In automobile manufacturing and various mechanical transmission systems, the differential plays a crucial role. It ensures that when a vehicle is turning or driving on uneven surfaces, the left and right wheels roll at different speeds, achieving pure rolling motion and guaranteeing stable driving and handling performance. The normal operation of the differential depends on the precise assembly of its various components. The correct installation of the lower bearing has a decisive impact on the stability and reliability of the differential and even the entire transmission system. If the lower bearing is missing, the differential will lack effective support and positioning during operation, leading to severe vibrations, abnormal gear meshing, and in serious cases, directly causing differential damage, vehicle malfunctions, and endangering driving safety.

[0003] In the past, the installation and inspection of the lower bearings in the differential assembly process relied heavily on manual operation. Assembly workers judged whether the bearings were installed correctly based on visual observation and personal experience. However, this traditional method has many drawbacks. On the one hand, manual inspection is inefficient and cannot meet the rapidly increasing production capacity demands in large-scale production scenarios. On the other hand, due to factors such as worker fatigue and distraction, missed inspections and misjudgments occur frequently. According to incomplete statistics, the rate of missed inspections and misjudgments in manual inspections is as high as 10%-20%, resulting in a large number of differentials with assembly defects flowing into subsequent processes. This not only increases after-sales maintenance costs but also seriously damages the company's brand image and market reputation.

[0004] To improve this situation, some companies have attempted to introduce automated testing equipment. For example, the patent with authorization announcement number CN210756219U, entitled "Differential Lower Bearing Anti-Leakage and Error-Prevention Device," uses a rotating worktable on a base, along with several positioning supports, to position the bearing cover. A testing cylinder drives a snap ring testing mechanism at the bottom of the testing seat to complete the testing. However, in practical applications, this device has revealed some limitations. The operation of its testing cylinder and related testing mechanisms relies on precise air pressure control and equipment debugging. If the air pressure is unstable or the equipment parameters deviate, the accuracy of the test results will be significantly reduced. Moreover, the device has a relatively complex structure, making maintenance difficult and requiring highly skilled maintenance technicians, resulting in high maintenance costs. Furthermore, when testing different specifications of differential lower bearings, the device requires extensive parameter adjustments and mechanical structure modifications, resulting in poor versatility and difficulty in flexibly adapting to diverse production needs. Utility Model Content

[0005] In view of this, the present invention provides a detection mechanism for whether the main bearing cover pin sleeve is missing, in order to solve the problems of low efficiency and high error rate when using manual inspection in the prior art, and the inability to efficiently and effectively detect whether the pin sleeve is missing due to the easy damage to the workpiece by contact sensors.

[0006] This utility model embodiment provides a detection mechanism for whether a main bearing cap pin sleeve is missing, comprising: a detection body, a detection inlet for the bearing cap and a detection cavity communicating with the detection inlet; a detection assembly, including a first detection block and a second detection block disposed in the detection cavity; the detection body includes a first side plate and a second side plate, and the detection cavity is disposed between the first side plate and the second side plate; a passage gap for the bearing cap is provided between the first detection block and the first side plate, and between the second detection block and the second side plate; the height of the first detection block and the second detection block is adapted to the height of the pin sleeve protruding from the bearing cap.

[0007] Preferably, the detection assembly further includes a guide roller disposed in the detection cavity, the guide roller being configured as a galvanized rod, used to assist the bearing cover in moving along a preset path.

[0008] Preferably, the detection component further includes a third detection block disposed on the first side plate and / or the second side plate; the third detection block includes an adjustment part and a limiting part disposed perpendicular to the adjustment part; the setting height of the third detection block is adapted to a preset height; wherein, the preset height is the height of the bearing cover plus the height of the pin sleeve protruding from the bearing cover.

[0009] Preferably, the first side plate and the second side plate are symmetrically arranged auxiliary moving mechanisms; the auxiliary moving mechanism includes a plurality of conveying rollers and a conveyor belt sleeved on the plurality of conveying rollers.

[0010] Preferably, the auxiliary moving mechanism further includes a mounting body and a mounting groove disposed inside the mounting body; the mounting groove has a first roller and a second roller at both ends, and a plurality of the conveying rollers are disposed between the first roller and the second roller.

[0011] Preferably, a plurality of spaced limiting rollers are also provided on one side of the plurality of conveying rollers in the mounting groove.

[0012] Preferably, the conveying roller, the first roller, the second roller, and the limiting roller can all rotate within the mounting groove.

[0013] Preferably, the first roller or the second roller is driven by a drive motor.

[0014] The detection mechanism for whether a main bearing cap pin sleeve is missing provided by this utility model has the following beneficial effects:

[0015] In this invention, a physical limiting detection mechanism utilizes the height difference between the detection block and the bearing cover to create a mechanical blocking mechanism. When the pin is installed, the bearing cover cannot pass smoothly through the detection cavity, thus achieving a direct and reliable determination of missing parts and completely avoiding the subjectivity and visual errors of manual inspection. The guide rollers and conveyor belt in the auxiliary moving mechanism ensure that the bearing cover is transported smoothly along the preset path, preventing deviation or jamming from interfering with the detection results and ensuring the continuity and accuracy of the detection process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0017] Figure 1 This is a schematic diagram of the working structure of a detection mechanism for whether a main bearing cover pin sleeve is missing.

[0018] Figure 2 This is a schematic diagram of a detection mechanism for whether a main bearing cover pin sleeve is missing.

[0019] Figure 3 This is a schematic diagram of a partial working structure of a detection mechanism for whether a main bearing cover pin sleeve is missing;

[0020] Figure 4 This is a schematic diagram of the auxiliary moving mechanism;

[0021] Figure 5 This is a schematic diagram of the internal structure of the auxiliary movement mechanism;

[0022] Parts and their numbers in the diagram:

[0023] 110 - Bearing cap, 120 - Pin sleeve;

[0024] 210 - Detection body, 220 - First side plate, 230 - Second side plate, 241 - Through gap, 250 - Detection cavity, 251 - Guide roller;

[0025] 260-Auxiliary moving mechanism, 261-Mounting body, 262-Mounting groove, 272-First roller, 273-Second roller, 274-Conveyor roller, 275-Conveyor belt, 276-Limiting roller, 277-Drive motor;

[0026] 310 - First detection block, 320 - Second detection block, 330 - Third detection block, 331 - Adjustment part, 332 - Limiting part. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used 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. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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 limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0028] Example 1

[0029] Please see Figure 1 This utility model embodiment provides a detection mechanism for whether the main bearing cover pin sleeve is missing. Generally, the detection method for whether the bearing cover 110 is equipped with the pin sleeve 120 is through manual visual inspection, which is inefficient and prone to errors.

[0030] To address this issue, this embodiment provides an automated detection mechanism capable of quickly and accurately determining whether the bearing cover 110 has the pin sleeve 120 installed. This mechanism mainly comprises a detection body 210 and multiple detection blocks, with each component working collaboratively to achieve efficient detection. In actual operation, the bearing cover 110 is placed within the detection chamber 250, and its movement during detection is ensured by cooperation with the guide roller 251. As the bearing cover 110 passes the detection blocks, the contact between it and the detection blocks is observed and confirmed to determine whether the pin sleeve 120 has been installed according to regulations and requirements.

[0031] Please see Figure 1 and Figure 3 In this embodiment, the detection mechanism includes a detection body 210 and a detection component; the detection body 210 is provided with a detection inlet of the bearing cover 110 and a detection cavity 250 communicating with the detection inlet; the detection component includes a first detection block 310 and a second detection block 320 disposed in the detection cavity 250; the detection body 210 includes a first side plate 220 and a second side plate 230, and the detection cavity 250 is disposed between the first side plate 220 and the second side plate 230; a passage gap 241 for the bearing cover 110 is provided between the first detection block 310 and the first side plate 220, and between the second detection block 320 and the second side plate 230; the height of the first detection block 310 and the second detection block 320 is adapted to the height of the pin sleeve 120 protruding from the bearing cover 110.

[0032] When inspecting the bearing cover 110, a number of bearing covers 110 are placed on one side of the inspection cavity 250 through the inspection inlet; and these bearing covers 110 are pushed to move within the inspection cavity 250. When these bearing covers 110 pass the positions of the first inspection block 310 and the second inspection block 320, due to the passage gap 241 and the height setting of the first inspection block 310 and the second inspection block 320, the bearing covers 110 with the pin sleeve 120 installed correctly can pass smoothly through the passage gap 241, while the bearing covers 110 with the pin sleeve 120 not installed or not installed correctly are blocked by the first inspection block 310 and / or the second inspection block 320 and cannot pass.

[0033] Furthermore, if the bearing cover 110 is correctly fitted with the pin sleeve 120, there will be a certain distance between the bottom surface of the bearing cover 110 and the bottom surface of the detection cavity 250. This distance will allow the bearing cover 110 to pass through the passage gap 241 without contacting the detection block. If the bearing cover 110 is not fitted with or is not correctly fitted with the pin sleeve 120, the bearing cover 110 will not be able to pass through the passage gap 241 because the gap between the bottom surface of the bearing cover 110 and the ground of the detection cavity 250 is insufficient. This will cause it to contact the first detection block 310 and / or the second detection block 320, preventing the bearing cover 110 from passing through smoothly. In this way, bearing covers 110 that are not fitted with or are not correctly fitted with the pin sleeve 120 can be screened out.

[0034] Please see Figure 1 The detection assembly also includes a guide roller 251 disposed in the detection cavity 250. The guide roller 251 is configured as a galvanized rod to assist the bearing cover 110 in moving along a preset path.

[0035] When the bearing cover 110 moves within the detection chamber 250, if it is pushed by a mechanical device, a defective bearing cover 110 may come into contact with the detection block with excessive force, potentially damaging the bearing cover 110 or the detection block and affecting detection accuracy and equipment lifespan. Therefore, the movement of the bearing cover 110 during detection is generally done manually. However, the bearing cover 110 has a certain weight, and manually pushing a batch of bearing covers 110 can be quite strenuous. Furthermore, improper operation can easily cause the bearing cover 110 to deviate from the preset path, affecting detection efficiency and accuracy.

[0036] To address this issue, the guide roller 251 plays a crucial role. The guide roller 251, made of chrome-plated rod material, not only possesses high wear resistance and corrosion resistance but also effectively reduces friction between the bearing cover 110 and the wall of the detection chamber 250 or other components during movement, thereby ensuring the stability and accuracy of the bearing cover 110 during the detection process. With the assistance of the guide roller 251, the bearing cover 110 can move smoothly along a preset path, avoiding deviations caused by improper manual operation.

[0037] Meanwhile, the presence of guide roller 251 can also reduce the physical burden of manual pushing and improve the overall detection efficiency.

[0038] In addition, the properties of the plated rod material enable the guide roller 251 to maintain a smooth surface during long-term use, reducing the impact of wear on the test results, thereby further extending the service life of the equipment and improving the reliability of the test.

[0039] Further, please see Figure 2 The detection component further includes a third detection block 330 disposed on the first side plate 220 and / or the second side plate 230; the third detection block 330 includes an adjustment part 331 and a limiting part 332 disposed perpendicular to the adjustment part 331; the setting height of the third detection block 330 is adapted to a preset height; wherein, the preset height is the height of the bearing cover 110 plus the height of the pin sleeve 120 protruding from the bearing cover 110.

[0040] In this embodiment, the position of the bearing cover 110 is limited by the limiting part 332 of the third detection block 330 to ensure that it does not shift vertically during the detection process. The design of the adjustment part 331 provides a flexible adjustment function to adapt to different specifications of bearing cover 110 and pin sleeve 120 combinations, thereby further improving the versatility and accuracy of the detection. This structure can effectively compensate for the detection error caused by the height deviation of the bearing cover 110 or pin sleeve 120, making the entire system more stable and reliable. At the same time, the adaptive height design of the third detection block 330 also avoids the detection failure problem caused by excessively high or low limiting, providing a strong guarantee for the consistency of the detection results.

[0041] Example 2

[0042] Please see Figure 4 and Figure 5 This utility model embodiment provides a detection mechanism for whether the pin sleeve 120 of the bearing cover 110 is missing.

[0043] In Embodiment 1, the inspection process was completed by manually pushing the bearing cover 110. Although the guide roller 251 reduced the burden of manual operation to some extent, there was still room for improvement in overall efficiency. To solve this problem, this embodiment introduces an automated drive component into the inspection mechanism, thereby realizing the automatic movement and inspection of the bearing cover 110.

[0044] In this embodiment, the first side plate 220 and the second side plate 230 are symmetrically arranged auxiliary moving mechanisms 260; the auxiliary moving mechanism 260 includes a plurality of conveying rollers 274 and a conveyor belt 275 sleeved on the plurality of conveying rollers 274.

[0045] The auxiliary moving mechanism 260 further includes a mounting body 261 and a mounting groove 262 disposed inside the mounting body 261; the mounting groove 262 has a first roller 272 and a second roller 273 at both ends, and a plurality of conveying rollers 274 are disposed between the first roller 272 and the second roller 273. The first roller 272 or the second roller 273 is driven by a drive motor 277. The conveying rollers 274, the first roller 272, the second roller 273, and the limiting roller 276 can all rotate within the mounting groove 262.

[0046] When inspecting the bearing cover 110, a number of bearing covers 110 are placed on one side of the inspection chamber 250 through the inspection inlet; and the drive motor 277 is started so that the bearing cover 110 is carried by the conveyor belt 275 through the conveyor gap 241, and is inspected by the first inspection block 310 and the second inspection block 320; since the guide roller 251 is a galvanized rod, its friction is small, so the bearing cover 110 can move easily on the guide roller 251 under the carrying of the conveyor belt 275.

[0047] In this embodiment, since the auxiliary moving mechanism 260 moves the bearing cover 110 by the friction between the conveyor belt 275 and the bearing cover 110, no force is generated between the bearing cover 110 and the first detection block 310 and / or the second detection block 320 that would damage the bearing cover 110 or the first detection block 310 and / or the second detection block 320 when the movement of the bearing cover 110 is restricted by the first detection block 310 and / or the second detection block 320. This design effectively avoids component wear or damage caused by excessive conveying force, thereby protecting the bearing cover 110 and extending the service life of the equipment.

[0048] Meanwhile, due to the flexibility of the conveyor belt 275, the bearing cover 110 remains stable during movement and will not shift or jam due to external forces. This structure not only improves the accuracy of the inspection but also significantly enhances the overall work efficiency. Furthermore, the design of the auxiliary moving mechanism 260 fully considers ease of maintenance; all key components can be quickly disassembled and replaced, further reducing equipment maintenance costs.

[0049] A plurality of spaced-apart limiting rollers 276 are also provided on one side of the plurality of conveying rollers 274 within the mounting groove 262. The limiting rollers 276 can further limit the position of the bearing cover 110 during the conveying process, preventing it from shifting due to external force or uneven force.

[0050] The setting of the limit roller 276 not only improves the stability of the conveying, but also ensures that the bearing cover 110 maintains the correct posture during the inspection process, thereby further improving the reliability of the inspection results. In addition, the limit roller 276 is made of wear-resistant material, which can maintain stable performance during long-term use, while reducing wear on the surface of the bearing cover 110.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A detection mechanism for whether a main bearing cap pin sleeve is missing, characterized in that, include: The detection body (210) is provided with a detection inlet of a bearing cover (110) and a detection cavity (250) communicating with the detection inlet; The detection assembly includes a first detection block (310) and a second detection block (320) disposed within the detection cavity (250); The detection body (210) includes a first side plate (220) and a second side plate (230), and the detection cavity (250) is disposed between the first side plate (220) and the second side plate (230); A bearing cover (110) is provided between the first detection block (310) and the first side plate (220), and between the second detection block (320) and the second side plate (230); The height of the first detection block (310) and the second detection block (320) is adapted to the height of the pin sleeve (120) protruding from the bearing cover (110).

2. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 1, is characterized in that... The detection assembly also includes a guide roller (251) disposed in the detection cavity (250). The guide roller (251) is configured as a galvanized rod to assist the bearing cover (110) in moving along a preset path.

3. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 1, is characterized in that... The detection assembly further includes a third detection block (330) disposed on the first side plate (220) and / or the second side plate (230); The third detection block (330) includes an adjustment part (331) and a limiting part (332) that is perpendicular to the adjustment part (331); The height of the third detection block (330) is adapted to the preset height; The preset height is the height of the bearing cover (110) plus the height of the pin sleeve (120) protruding from the bearing cover (110).

4. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 1, is characterized in that... The first side plate (220) and the second side plate (230) are symmetrically arranged auxiliary moving mechanisms (260); The auxiliary moving mechanism (260) includes a plurality of conveyor rollers (274) and a conveyor belt (275) sleeved on the plurality of conveyor rollers (274).

5. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 4, is characterized in that... The auxiliary moving mechanism (260) also includes a mounting body (261) and a mounting groove (262) disposed inside the mounting body (261); The mounting groove (262) has a first roller (272) and a second roller (273) at both ends, and a plurality of conveying rollers (274) are disposed between the first roller (272) and the second roller (273).

6. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 5, is characterized in that... A plurality of spaced limiting rollers (276) are also provided on one side of a plurality of conveying rollers (274) in the mounting groove (262).

7. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 6, is characterized in that... The conveying roller (274), the first roller (272), the second roller (273), and the limiting roller (276) can all rotate within the mounting groove (262).

8. The detection mechanism for whether a main bearing cap pin sleeve is missing, as described in claim 5, is characterized in that... The first roller (272) or the second roller (273) is driven by a drive motor (277).

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