A bearing quick detection device for fascia gun production

Abstract

The utility model discloses a bearing fast detection device for fascia gun production belongs to bearing detection equipment technical field, including motor, main shaft, replacement shaft, outer clamp and sensor, be equipped with detachable mechanism, through the first arc inclined block in the main shaft and the second arc inclined block inlaying transmission torque of replacement shaft bottom, utilize the limiting rod of passing through the through -hole of replacement shaft again, by the nut of screw connection pressure tight fixed, will replacement shaft steady locking, the device still is equipped with anti -interference mechanism, including the protective cap of fixed on outer clamp and the protection seat of vibration damping installation on motor through buffer pad, and the protective cap is formed with the protection seat and cooperates sealed detection space, and the outside noise is isolated. The utility model discloses through high stability detachable structure and double anti -interference design, effectively solved the connection of replacement component after not stable and the problem of detection interference, realized the beneficial effect of reliable connection, accurate detection and efficient operation.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing testing equipment, and in particular to a bearing rapid testing device for fascia gun production. Background Technology

[0002] As a high-frequency vibration massage device, the motor of a fascia gun needs to operate smoothly at extremely high speeds. Therefore, the quality of the bearings used in the motor, especially the noise reduction performance and rotational stability, directly determines the user experience and service life of the entire fascia gun. In the process of mass production of fascia guns, rapid and accurate quality testing of each bearing is a key link to ensure the product qualification rate.

[0003] To adapt to the fast pace and multiple batches of the production line, the bearing inspection device needs to have the ability to quickly inspect and be compatible with different models or specifications of bearings. For this reason, the existing inspection device adopts a design with interchangeable spindles or fixtures to quickly switch between different batches of bearing inspection tasks.

[0004] However, in pursuing ease of disassembly and assembly, the replaceable connection structure in the existing technology often sacrifices the rigidity and stability of the connection. During the testing process that simulates high-speed operation, these non-integrated connection points will produce slight relative sliding or radial runout, which will introduce additional vibration and noise. The interference signal generated by the instability of the equipment structure itself is superimposed on the defect signal of the bearing under test. It is then mixed with the environmental noise and equipment vibration that are common in the production workshop, making it difficult for highly sensitive sensors to accurately distinguish the faint abnormal noises that are actually caused by bearing defects. Ultimately, this leads to a significant reduction in the accuracy and reliability of the test results, resulting in missed detections or misjudgments.

[0005] Therefore, this utility model proposes a bearing quick inspection device for fascia gun production to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing bearing quick inspection device for fascia gun production, such as the unstable replaceable connection structure used to adapt to different bearing specifications, and the low detection accuracy and poor reliability caused by equipment vibration and environmental noise interference during the inspection process, this utility model aims to provide a bearing quick inspection device for fascia gun production with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a bearing quick inspection device for fascia gun production, including: a motor, a main shaft, a replacement shaft, a sensor, an external clamp, a detachable mechanism, and an anti-interference mechanism.

[0008] The detachable mechanism includes a first arc-shaped inclined block fixed in the inner cavity of the main shaft, a second arc-shaped inclined block disposed at the bottom of the replacement shaft, a threaded sleeve fixed on the outer periphery of the main shaft, a nut threadedly connected to the threaded sleeve, a through hole opened on the replacement shaft, a retaining ring disposed on the nut, and a limiting rod.

[0009] Furthermore, the first and second arc-shaped inclined blocks interlock by rotation to transmit torque. The limiting rod is inserted after the opening of the fixing ring is aligned with the through hole of the replacement shaft. The fixing ring is radially fixed by tightening the nut. The limiting rod is radially locked by the pressure applied by the rubber ring between the nut and the threaded sleeve, thereby firmly connecting the replacement shaft to the main shaft.

[0010] The anti-interference mechanism includes a protective cap fixed on an external clamp and a protective seat fixed on the motor. The protective cap and the protective seat cooperate with each other to form a sealed testing space during testing, isolating the bearing under test from the external environment.

[0011] Preferably, a rubber ring is provided between the nut and the threaded sleeve. The rubber ring surrounds the outer circumference of the main shaft. When the nut is tightened, it is subjected to axial compression and generates elastic deformation, thereby providing a continuous and uniform radial locking force for the limit rod and ensuring the long-term stability of the connection.

[0012] Preferably, the retaining ring on the nut can rotate relative to the body of the nut. This design allows the operator to quickly and easily align or offset the opening with the through hole of the replacement shaft when installing or removing the replacement shaft.

[0013] Preferably, the protective seat in the anti-interference mechanism is installed on the motor at intervals by buffer pads and fixed by screws. The buffer pads utilize the properties of elastic materials to effectively absorb and attenuate vibrations from the motor, preventing interference to the sensor.

[0014] Preferably, the protective seat has a mating opening, through which the sensor's probe can pass, allowing it to reach inside and perform close-range, precise testing of the bearing without compromising the integrity of the sealed detection space.

[0015] Preferably, the first and second arc-shaped blocks in the detachable mechanism are both designed as inclined surface structures with predetermined curvature and inclination angle, ensuring a large contact area and uniform force distribution during rotational engagement, which is beneficial for the smooth transmission of large torque.

[0016] Preferably, the opening on the fixing ring is a square opening, and the middle section of the limiting rod is also designed to be square to match it. This shape matching can effectively prevent the limiting rod from rotating when subjected to radial force, further enhancing the reliability of locking.

[0017] Preferably, while the outer clamp moves forward to hold the outer ring of the bearing stationary, the protective cap also moves synchronously until its edge abuts against the edge of the protective seat, automatically completing the construction of the sealed space. This combines the clamping and sealing actions into one, simplifying the operation process.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problems of unstable connection and relative sliding and vibration during high-speed rotation caused by replacing shafts of different specifications in the prior art by setting a detachable mechanism in which the first arc inclined block and the second arc inclined block are fitted together, and the limiting rod passes through the through hole and is locked by the nut. It realizes the quick replacement of the shaft while ensuring the structural rigidity and high synchronous rotation accuracy after connection, thereby improving the accuracy of the test data.

[0020] 2. This utility model solves the problem of interference from its own motor vibration and external environmental noise in the prior art by setting up an anti-interference mechanism that forms a sealed space by the cooperation of a protective cap and a protective base and uses a buffer pad to isolate motor vibration. This creates a pure detection environment for the sensor and improves the reliability and repeatability of the detection results.

[0021] 3. This utility model, by fixing the protective cap to the external clamp, allows the action of clamping the bearing to be completed simultaneously with the action of forming a sealed detection space. This solves the problems of cumbersome steps and low operating efficiency in the existing detection process, and achieves the goal of simplifying operation and shortening the single detection time, which is more in line with the rapid detection on the production line. Attached Figure Description

[0022] Figure 1 This is a perspective view of a bearing quick inspection device for fascia gun production proposed in this utility model.

[0023] Figure 2 This is an exploded view of the replacement shaft of a bearing quick inspection device for fascia gun production proposed in this utility model;

[0024] Figure 3 This is a cross-sectional view of the main shaft of a bearing quick inspection device for fascia gun production proposed in this utility model;

[0025] Figure 4 for Figure 5 Enlarged view of point A in the middle;

[0026] Figure 5 This is an exploded view of the protective seat of a bearing quick inspection device for fascia gun production proposed in this utility model.

[0027] Legend:

[0028] 1. Motor; 2. External clamp; 3. Sensor; 4. Main shaft; 5. Detachable mechanism; 501. First arc-shaped inclined block; 502. Second arc-shaped inclined block; 503. Threaded sleeve; 504. Nut; 505. Rubber ring; 506. Retaining ring; 507. Limiting rod; 508. Through hole; 6. Replacement shaft; 7. Anti-interference mechanism; 701. Protective cap; 702. Protective seat; 703. Screw; 704. Buffer pad; 705. Mating port. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 5 This utility model provides a bearing quick inspection device for fascia gun production, which aims to solve the problem that existing bearing inspection devices have insufficient connection reliability when adapting to bearings of different specifications, and are affected by their own vibration and environmental noise, thus affecting the inspection accuracy.

[0032] like Figure 1 As shown, the bearing quick inspection device for fascia gun production includes a motor 1, a main rotating shaft 4 driven by the motor 1, a replacement rotating shaft 6 detachably connected to the main rotating shaft 4, an outer clamp 2 for fixing the outer ring of the bearing to be tested, a sensor 3 for detecting the bearing condition, and also includes a detachable mechanism 5 for realizing quick replacement and stable connection, and an anti-interference mechanism 7 for isolating interference, wherein the sensor 3 is model SKF MVH 200E;

[0033] Reference Figure 3 and Figure 4 The detachable mechanism 5 realizes the synchronous rotational connection between the main rotating shaft 4 and the replacement rotating shaft 6. It includes a first arc-shaped inclined block 501 fixed to the end of the inner cavity of the main rotating shaft 4, and a second arc-shaped inclined block 502 set at the bottom of the replacement rotating shaft 6 and cooperating with the first arc-shaped inclined block 501. A threaded sleeve 503 is fixed on the outer periphery of the main rotating shaft 4. A nut 504 is threadedly connected to the threaded sleeve 503. A rubber ring 505 is set between the nut 504 and the threaded sleeve 503. A through hole 508 is opened laterally on the replacement rotating shaft 6. A fixing ring 506 is set on the nut 504. A limiting rod 507 passes through the opening of the fixing ring 506 and the through hole 508.

[0034] Reference Figure 5The anti-interference mechanism 7 is used to provide an interference-free environment for the main bearing inspection. It includes a protective cap 701 fixed on the outer clamp 2 and a protective seat 702 fixed on the motor 1. The protective seat 702 is fixed to the motor 1 by a buffer pad 704 and a screw 703 for vibration damping. The protective seat 702 has a mating port 705 for the sensor 3 to pass through. When the outer clamp 2 clamps the bearing close to the replacement shaft 6, the protective cap 701 and the protective seat 702 cooperate to form a sealed inspection space.

[0035] Please refer to Figures 2 to 4 The inner end of the main rotating shaft 4 is fixedly connected to a first arc-shaped inclined block 501, while the bottom of the replacement rotating shaft 6 is integrally formed with a second arc-shaped inclined block 502 that matches the shape and angle of the first arc-shaped inclined block 501. Both the first arc-shaped inclined block 501 and the second arc-shaped inclined block 502 are inclined surface structures with a predetermined curvature and angle. After the replacement rotating shaft 6 is inserted into the main rotating shaft 4, it is rotated to make the replacement rotating shaft 6 fit into the main rotating shaft 4. The fitting structure is mainly used to transmit torque between the main rotating shaft 4 and the replacement rotating shaft 6.

[0036] To further achieve complete axial and radial locking, a threaded sleeve 503 with an external thread is fixedly connected to the outer circumferential surface of the main shaft 4. The nut 504 is threadedly connected to the threaded sleeve 503 through an internal thread. A rubber ring 505 is provided between the nut 504 and the threaded sleeve 503. The rubber ring 505 surrounds the outer circumference of the main shaft 4 and is axially compressed when the nut 504 is tightened.

[0037] Meanwhile, a through hole 508 is transversely opened on the shaft of the replacement shaft 6, and a retaining ring 506 is movably connected to the top of the nut 504. The retaining ring 506 has an opening, preferably a square opening. During assembly, the retaining ring 506 is rotated to align the square opening with the through hole 508, and then the limiting rod 507 is inserted. The middle section of the limiting rod 507 is a square that matches the square opening to prevent the limiting rod 507 from rotating itself.

[0038] Finally, by tightening the nut 504, the pressure generated by the rubber ring 505 is used to apply a stable radial locking force to the limiting rod 507, thereby firmly locking the replacement shaft 6 onto the main shaft 4. This method of torque transmission through the arc-shaped block and dual radial and axial locking using the limiting rod 507 ensures that the replacement shaft 6 and the main shaft 4 are completely synchronized under high-speed rotation, eliminating any form of relative slippage or radial runout.

[0039] In a preferred embodiment, in order to provide a stable and buffered clamping force when tightening the nut 504, a rubber ring 505 is provided between the nut 504 and the threaded sleeve 503. The rubber ring 505 surrounds the outer periphery of the main rotating shaft 4. When the nut 504 is tightened, the rubber ring 505 is axially compressed and produces elastic deformation, thereby applying a continuous and uniform radial locking force to the limiting rod 507, ensuring the reliability of the connection.

[0040] As another preferred embodiment, in order to effectively isolate the vibration generated by the motor 1 during operation and prevent the vibration from affecting the measurement accuracy of the sensor 3 through structural transmission, the protective seat 702 is installed on the motor 1 at intervals by buffer pads 704. Specifically, the screw 703 passes through the mounting holes on the protective seat 702 and the buffer pad 704 in sequence and is then fixedly connected to the housing of the motor 1. The elastic material properties of the buffer pad 704 are used to absorb and attenuate vibration energy.

[0041] As a further optimization of the anti-interference mechanism 7, in order to enable the sensor 3 to detect the bearing while isolating interference, a mating port 705 is provided on the protective seat 702. The detection end of the sensor 3 can pass through the mating port 705 and extend into the sealed detection space formed by the protective cap 701 and the protective seat 702, and directly target the bearing installed on the replacement shaft 6 for non-contact measurement.

[0042] As a further optimization of the detachable mechanism 5, in order to ensure smooth torque transmission and precise limiting operation, the contact surfaces of the first arc-shaped block 501 and the second arc-shaped block 502 are both designed as inclined surfaces with specific curvature and inclination angle, so that the two can be tightly fitted by rotation. The fixing ring 506 is designed to rotate relative to the body of the nut 504, so that the operator can quickly align or offset the square opening on it with the through hole 508. At the same time, the middle section of the limiting rod 507 is designed to be square to match the square opening. When inserted, it can prevent unnecessary rotation by matching the shape, ensuring the absolute stability of the limiting.

[0043] As an optimization for the ease of operation of the testing process, the protective cap 701 moves synchronously with the outer clamp 2 as it moves toward the replacement shaft 6 to clamp the outer ring of the bearing until the edge of the protective cap 701 and the protective seat 702 abut against each other. This action is completed synchronously with the clamping action, automatically forming a sealed testing space and simplifying the operation steps.

[0044] Working principle: When performing the replacement operation, first insert the replacement shaft 6 with the second arc-shaped inclined block 502 into the inner cavity of the main shaft 4. Rotate the replacement shaft 6 so that the second arc-shaped inclined block 502 and the first arc-shaped inclined block 501 inside the main shaft 4 are engaged with each other, realizing the basic connection for torque transmission. Then rotate the fixing ring 506 on the nut 504 so that the opening is aligned with the through hole 508 on the replacement shaft 6 and insert the limiting rod 507. Finally, tighten the nut 504. The nut 504 advances on the threaded sleeve 503 and compresses the rubber ring 505 in the middle. The compressed rubber ring 505 applies a radial locking force to the limiting rod 507, thereby locking the replacement shaft 6 firmly without gaps and solving the problem of unstable connection after replacing parts.

[0045] During the testing process, the bearing to be tested is installed on the replacement shaft 6. The outer clamp 2 moves forward to hold the outer ring of the bearing stationary. At the same time, the protective cap 701 fixed on the outer clamp 2 also approaches and eventually abuts against the protective seat 702, forming a sealed testing space. The motor 1 is started, and the motor 1 drives the inner ring of the bearing to rotate at high speed through the main shaft 4 and the replacement shaft 6. The vibration generated by the motor 1 itself is absorbed by the buffer pad 704 between the protective seat 702 and the motor 1, while the external environmental noise is isolated by the sealed testing space. The detection end of the sensor 3 has already extended into the space through the mating port 705 on the protective seat 702. At this time, the noise decibel generated by the rotation of the bearing can be accurately measured in an interference-free environment, thereby accurately judging the quality and solving the problem of interference in the test.

Claims

1. A bearing quick inspection device for fascia gun production, comprising a motor (1), a main shaft (4), a replacement shaft (6), a sensor (3), an external clamp (2), a detachable mechanism (5), and an anti-interference mechanism (7); characterized in that The detachable mechanism (5) includes a first arc-shaped inclined block (501) fixed to the end of the inner cavity of the main shaft (4) and a second arc-shaped inclined block (502) disposed at the bottom of the replacement shaft (6) and cooperating with the first arc-shaped inclined block (501). A threaded sleeve (503) is fixed on the outer periphery of the main shaft (4). A nut (504) is threadedly connected to the threaded sleeve (503). A through hole (508) is opened on the replacement shaft (6). A fixing ring (506) is provided on the nut (504). A limiting rod (507) passes through the opening of the fixing ring (506) and the through hole (508). By tightening the nut (504), an axial pressure is generated along the fixing ring (506), thereby radially locking the limiting rod (507) and fixing the replacement shaft (6) and the main shaft (4). The anti-interference mechanism (7) includes a protective cap (701) fixed on the external clamp (2) and a protective seat (702) fixed on the motor (1). The protective cap (701) and the protective seat (702) cooperate to form a sealed space.

2. The fascia gun production bearing quick inspection device according to claim 1, characterized in that, A rubber ring (505) is provided between the nut (504) and the threaded sleeve (503). The rubber ring (505) surrounds the outer periphery of the main rotating shaft (4) and is pressed when the nut (504) is tightened to apply a locking force to the limiting rod (507).

3. The fascia gun production bearing quick inspection device of claim 1, wherein, The retaining ring (506) is rotatable relative to the nut (504) so ​​that the opening on the retaining ring (506) is aligned with or offset from the through hole (508) on the replacement shaft (6).

4. The fascia gun production bearing quick inspection device of claim 1, wherein, The protective seat (702) is mounted on the motor (1) at intervals by buffer pads (704), and is fixedly connected to the motor (1) by screws (703) passing through the protective seat (702) and buffer pads (704).

5. The fascia gun production bearing quick inspection device according to claim 1 or 4, characterized in that, The protective base (702) has a mating port (705), and the detection end of the sensor (3) passes through the mating port (705) to extend into the sealed detection space.

6. The fascia gun production bearing quick inspection device of claim 1, wherein, The first arc-shaped block (501) and the second arc-shaped block (502) are both inclined plane structures with a predetermined curvature and inclination angle. The first arc-shaped block (501) and the second arc-shaped block (502) are rotated and fitted together to transmit torque between the main rotating shaft (4) and the replacement rotating shaft (6).

7. The fascia gun production bearing quick inspection device of claim 1, wherein, The opening on the fixing ring (506) is a square opening, and the middle section of the limiting rod (507) is a square to match it, so as to prevent the limiting rod (507) from rotating.

8. The fascia gun production bearing quick inspection device of claim 1, wherein, The outer clamp (2) is used to hold the outer ring of the bearing stationary during testing, while the protective cap (701) moves closer to the protective seat (702) as the outer clamp (2) moves, until the edges of the two abut against each other to form the sealed testing space.

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