Device for preventing wheel from being hit by mistake in grinding inner groove of deep groove ball bearing inner ring

By using a device to prevent grinding wheel collisions in the inner groove of the deep groove ball bearing grinding inner ring, and utilizing detection and protection components, the device achieves precise positioning and rapid detection of the bearing ring, avoiding grinding wheel collisions. This solves the safety hazards caused by excessive allowance or misalignment in the bearing ring groove, and improves the safety and durability of the equipment.

CN224464375UActive Publication Date: 2026-07-07SHANDONG YONGHUI PRECISION BEARING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YONGHUI PRECISION BEARING CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-07

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Abstract

The utility model provides grinding inner ring inner groove preventing device of deep groove ball bearing, belongs to bearing processing technical field to solve the problem of the existing deep groove ball bearing inner ring inner groove grinding process, because the ring channel allowance is too big or the deviation, leads to the high speed impact of the grinding wheel without buffer ring, causes the grinding wheel to break, machine tool damage, and there is the hidden danger of safety and influences equipment life problem. Including processing station, first support foot, drive mechanism, sensor main part, protection box, detection component and protection assembly, first support foot fixed mounting is in processing station front side, drive mechanism fixed mounting is in processing station front side top, sensor main part fixed mounting is in drive mechanism bottom, protection box fixed mounting is in processing station front side, detection component setting is in processing station front side, protection assembly sets up in protection box interior. The utility model has the advantages of quick detection, avoids the mistake of hitting, safety protection etc.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing processing technology, and more specifically, it relates to a device for preventing grinding wheel from accidentally hitting the inner groove of the inner ring of a deep groove ball bearing. Background Technology

[0002] In the grinding process of the inner groove of the inner ring of a deep groove ball bearing, a chuck or magnetic chuck is usually used to fix the inner ring of the bearing, and the inner ring of the bearing is rotated by a drive mechanism. The rotating inner ring of the bearing is then ground by grinding equipment.

[0003] Based on the above, in the existing grinding process of the inner groove of the inner ring of deep groove ball bearings, if the allowance of the inner groove of the ring is too large or the ring is misaligned, the grinding wheel will have no buffer distance and directly impact the ring at high speed, which can easily cause the grinding wheel to break and cause safety accidents. It can also damage machine tool parts, pose safety hazards, and affect the service life of equipment. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a device to prevent grinding wheel from accidentally impacting the inner groove of the inner ring during deep groove ball bearing grinding. This device solves the problem that in the existing grinding process of the inner groove of the inner ring of deep groove ball bearings, excessive allowance or misalignment of the ring groove can lead to the grinding wheel having no buffer distance and directly impacting the ring at high speed, which can easily cause grinding wheel breakage and safety accidents, as well as damage to machine tool components, posing safety hazards and affecting the service life of the equipment.

[0005] The purpose and effectiveness of this utility model's device for preventing grinding wheel collision in the inner groove of the grinding inner ring of a deep groove ball bearing are achieved through the following specific technical means:

[0006] A device for preventing grinding wheel collision during deep groove ball bearing inner ring grinding includes a machining station, a first support leg, a drive mechanism, a sensor body, a protective housing, a detection component, and a protective component. The first support leg is fixedly installed on the front side of the machining station; the drive mechanism is fixedly installed on the top of the front side of the machining station; the sensor body is fixedly installed on the bottom of the drive mechanism; the protective housing is fixedly installed on the front side of the machining station; the detection component is located on the front side of the machining station; and the protective component is located inside the protective housing.

[0007] Furthermore, the detection component includes a second support leg and an auxiliary roller shaft. The second support leg is fixedly installed on the front side of the processing station. Two sets of auxiliary roller shafts are provided, and the two sets of auxiliary roller shafts are respectively rotatably connected to the top of the first support leg and the second support leg.

[0008] Furthermore, the detection component also includes a measuring probe and an arc head, wherein the measuring probe is mounted on the bottom of the sensor body and the arc head is located on the top of the measuring probe.

[0009] Furthermore, the protective assembly includes: a hinge shaft and a protective plate. The hinge shaft is provided in two sets, and the two sets of hinge shafts are rotatably connected to both sides of the bottom of the protective box. The protective plate is provided in two sets, and the two sets of protective plates are respectively fixedly installed on the outside of the two sets of hinge shafts.

[0010] Furthermore, the protective assembly also includes: elastic elements, wherein two pairs of elastic elements are provided, one end of the two pairs of elastic elements is fixedly installed on the outside of the two sets of hinge shafts, and the other end of the two pairs of elastic elements is fixedly installed on the outside of the two sets of protective plates.

[0011] Furthermore, the protective component also includes: mounting slots and nylon soft brushes. Two sets of mounting slots are provided, and the two sets of mounting slots are respectively opened inside the two sets of protective plates. Two sets of nylon soft brushes are provided, and the two sets of nylon soft brushes are respectively snapped into the two sets of mounting slots.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Firstly, this invention features a detection component. The first and second legs provide initial support, which, together with the arc-shaped head on the measuring probe, forms a triangular positioning mechanism, enabling precise positioning of the raceway. An auxiliary roller replaces sliding friction with rolling contact, reducing wear between the legs and the raceway, while simultaneously assisting in the grinding process. The measuring probe can detect groove allowance and misalignment in real time, filtering out defective raceways for removal by a robotic arm, thus avoiding the risk of impact from the grinding wheel.

[0014] Secondly, this invention features a protective component. A protective plate and a protective housing form a closed space, normally protecting the sensor body and measuring probe from impacts and contamination by grinding debris during the handling of the retaining ring. An elastic element automatically opens and closes the protective plate without affecting the movement and detection of the measuring probe. A nylon soft brush cleans surface impurities as the probe moves in and out, ensuring detection accuracy and extending component lifespan.

[0015] This invention has the advantages of rapid detection, avoiding accidental collisions, and providing safety protection. By detecting and removing defective bearing rings, it avoids the risk of safety accidents and equipment damage, and improves the reliability of detection and the durability of components. It is suitable for high-precision bearing grinding processing scenarios. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the first support structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the protective box structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the protective plate structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Processing station; 2. First support leg; 201. Auxiliary roller; 3. Second support leg; 4. Drive mechanism; 5. Sensor body; 501. Measuring probe; 502. Arc head; 6. Protective housing; 601. Hinge shaft; 602. Protective plate; 603. Elastic element; 604. Mounting groove; 605. Nylon soft brush. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:

[0025] This utility model provides a device to prevent grinding wheel from accidentally colliding with the inner groove of the inner ring of a deep groove ball bearing during grinding. It includes a machining station 1, a first support leg 2, a drive mechanism 4, a sensor body 5, a protective housing 6, and a detection component. The first support leg 2 is fixedly installed on the front side of the machining station 1; the drive mechanism 4 is fixedly installed on the top of the front side of the machining station 1; the sensor body 5 is fixedly installed on the bottom of the drive mechanism 4; the protective housing 6 is fixedly installed on the front side of the machining station 1; and the detection component is located on the front side of the machining station 1.

[0026] The detection component includes a second support leg 3 and an auxiliary roller 201. The second support leg 3 is fixedly installed on the front side of the processing station 1. Two sets of auxiliary roller 201 are provided, and the two sets of auxiliary roller 201 are rotatably connected to the top of the first support leg 2 and the second support leg 3, respectively.

[0027] The detection component also includes a measuring probe 501 and an arc head 502. The measuring probe 501 is installed at the bottom of the sensor body 5, and the arc head 502 is located at the top of the measuring probe 501.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When internal groove grinding of the bearing ring is required, the ring is first placed in machining station 1. Initial support is established using the first support leg 2 and the second support leg 3. Two sets of auxiliary rollers 201 are rotatably connected to the tops of the first support leg 2 and the second support leg 3, respectively. During subsequent ring rotation grinding, the auxiliary rollers 201 provide auxiliary transmission, replacing sliding friction with rolling contact to avoid wear between the first support leg 2, the second support leg 3, and the ring, thus completing the basic positioning of the ring. Subsequently, the drive mechanism 4 drives the sensor body 5 to move, synchronously pulling the measuring probe 501. The arc-shaped head 502 at the top of the measuring probe 501 easily fits against the inner groove of the ring, abutting against the corresponding part of the ring. The first support leg 2, the second support leg 3, and the arc-shaped head 502 cooperate to form a triangular positioning system, achieving precise positioning of the ring.

[0030] After mechanical positioning is completed, the magnetic chuck is activated and adsorbs and fixes the raceway; simultaneously, the measuring probe 501 is triggered to detect the raceway groove parameters, margin, and offset. If the groove margin exceeds the limit or the position is offset, the robot arm automatically grabs and removes the defective raceway; after a raceway that meets the processing requirements is detected, the drive mechanism 4 drives the sensor body 5 to move upward and return to its original position, avoiding damage to the sensor body 5 during the grinding process. Then, the machine tool starts the grinding process to ensure that the grinding wheel only operates on compliant raceways, thus avoiding the risk of safety accidents and equipment damage caused by the grinding wheel hitting defective raceways from the source.

[0031] Example 2: Based on Example 1, as follows Figures 1 to 5 As shown, it also includes: a protective component, which is installed inside the protective housing 6.

[0032] The protective components include: a hinge shaft 601 and a protective plate 602. Two sets of hinge shafts 601 are provided, and the two sets of hinge shafts 601 are rotatably connected to the two sides of the bottom of the protective box 6. Two sets of protective plates 602 are provided, and the two sets of protective plates 602 are respectively fixedly installed on the outside of the two sets of hinge shafts 601.

[0033] The protective assembly also includes: elastic elements 603, which are provided in two pairs. One end of the two pairs of elastic elements 603 is fixedly installed on the outside of the two sets of hinge shafts 601, and the other end of the two pairs of elastic elements 603 is fixedly installed on the outside of the two sets of protective plates 602.

[0034] The protective components also include: mounting slots 604 and nylon soft brushes 605. There are two sets of mounting slots 604, which are respectively opened inside the two sets of protective plates 602; there are two sets of nylon soft brushes 605, which are respectively snapped into the two sets of mounting slots 604.

[0035] The specific usage and function of this embodiment are as follows:

[0036] Two sets of protective plates 602 are hinged to the bottom sides of the protective housing 6 via hinge shafts 601. Under normal conditions, two pairs of elastic elements 603 drive the hinge shafts 601 to rotate using their own elastic force, causing the two sets of protective plates 602 to close tightly, forming a closed space with the protective housing 6, enclosing the sensor body 5 and the measuring probe 501 within. This structure effectively blocks external risks: when picking up or placing the collar, it avoids accidental impacts of the workpiece to the measuring probe 501, preventing damage to its accuracy; during grinding operations, it intercepts flying metal debris, preventing it from damaging the sensor body 5 or contaminating the detection surface of the measuring probe 501.

[0037] When the drive mechanism 4 moves the sensor body 5 downwards for detection, the measuring probe 501 first contacts the protective plate 602. Through thrust, it overcomes the elastic force of the elastic element 603, causing the two sets of protective plates 602 to rotate outwards around the hinge shaft 601, opening up the detection path for the measuring probe 501 and ensuring its smooth arrival at the ring detection position. After the detection is completed, the drive mechanism 4 moves the sensor body 5 upwards back to its original position. The measuring probe 501 gradually detaches from the protective plate 602. At this time, the elastic force of the elastic element 603 again dominates the rotation of the hinge shaft 601, causing the protective plate 602 to automatically reset and close, re-forming a closed protection.

[0038] When the measuring probe 501 enters or exits the gap of the protective plate 602, the nylon soft brushes 605 in the two sets of mounting slots 604 will gently wipe its surface to remove the attached dust, grinding debris and other impurities in a timely manner, so as to avoid the accumulation of impurities affecting the detection accuracy. If impurities or debris cause the measuring probe 501 to not fit tightly with the collar groove, it will also reduce the wear of impurities on the probe surface and extend its service life.

[0039] The following points should be noted in this article:

[0040] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0041] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0042] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing, characterized in that: The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing includes a machining station (1), a first support leg (2), a drive mechanism (4), a sensor body (5), a protective housing (6), a detection component, and a protective component. The first support leg (2) is fixedly installed on the front side of the machining station (1); the drive mechanism (4) is fixedly installed on the top of the front side of the machining station (1); the sensor body (5) is fixedly installed on the bottom of the drive mechanism (4); the protective housing (6) is fixedly installed on the front side of the machining station (1); the detection component is located on the front side of the machining station (1); and the protective component is located inside the protective housing (6).

2. The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing as described in claim 1, characterized in that: The detection component includes a second support leg (3) and an auxiliary roller (201). The second support leg (3) is fixedly installed on the front side of the processing station (1). The auxiliary roller (201) is provided in two sets, and the two sets of auxiliary rollers (201) are rotatably connected to the top of the first support leg (2) and the second support leg (3) respectively.

3. The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing as described in claim 2, characterized in that: The detection assembly also includes a measuring probe (501) and an arc head (502), wherein the measuring probe (501) is installed at the bottom of the sensor body (5); and the arc head (502) is located at the top of the measuring probe (501).

4. The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing as described in claim 1, characterized in that: The protective assembly includes: a hinge shaft (601) and a protective plate (602). The hinge shaft (601) is provided in two sets, and the two sets of hinge shafts (601) are rotatably connected to the bottom sides of the protective box (6). The protective plate (602) is provided in two sets, and the two sets of protective plates (602) are respectively fixedly installed on the outside of the two sets of hinge shafts (601).

5. The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing as described in claim 4, characterized in that: The protective assembly also includes: elastic elements (603), which are provided in two pairs. One end of each pair of elastic elements (603) is fixedly installed on the outside of the two sets of hinge shafts (601), and the other end of each pair of elastic elements (603) is fixedly installed on the outside of the two sets of protective plates (602).

6. The device for preventing grinding wheel collision in the inner groove of the inner ring of a deep groove ball bearing as described in claim 4, characterized in that: The protective component also includes: a mounting slot (604) and a nylon soft brush (605). The mounting slot (604) is provided in two sets, and the two sets of mounting slots (604) are respectively opened inside the two sets of protective plates (602). The nylon soft brush (605) is provided in two sets, and the two sets of nylon soft brushes (605) are respectively snapped into the two sets of mounting slots (604).