Grinding device for bearing inner ring

Abstract

The utility model provides a grinding device for a bearing inner ring, and belongs to the technical field of bearing machining equipment. The grinding device solves the technical problem that an existing grinding device for bearing parts is not smooth due to the fact that clamping stagnation is prone to being generated in the discharging process. According to the grinding device for the bearing inner ring, a material carrying swing arm, a discharging track and a grinding wheel are all connected to a machine body, the swing end of the material carrying swing arm is connected with a positioning column, the positioning column stretches out towards the side where the machine body is located, the material carrying swing arm can reciprocate in the axial direction of the positioning column, and a first material scraping plate is fixedly connected to the outer side of the machine body; the first scraping plate and the grinding wheel are arranged at intervals in the horizontal direction, the positioning column is perpendicular to the first scraping plate, and a port of the discharging track is located under the first scraping plate. When the swing end of the material carrying swing arm moves to the first material scraping plate, the positioning column can drive the bearing inner ring to move towards the first material scraping plate in the axial direction and enable the bearing inner ring to be scraped by the first material scraping plate to fall into a discharging rail below the first material scraping plate. The feeding device is beneficial to guaranteeing stable and smooth discharging and conveying after the bearing inner ring is machined.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing processing equipment and relates to a grinding device for a bearing inner ring. Background Art

[0002] The outer periphery and inner edge of the inner and outer rings of the bearing need to be ground before assembly to ensure the accuracy of the bearing assembly. In order to realize the grinding of bearing components, special equipment is required to realize automatic operation.

[0003] For example, the patent application publication number CN103659568A discloses a bearing outer ring superfinishing machine, which includes a base, a vertical plate provided on the base, a grinding mechanism provided on the base, a loading mechanism provided on the vertical plate, an opening provided on the vertical plate, an electromagnetic pole head rotating relative to the vertical plate provided in the opening, the output shaft of the headstock motor is transmission-connected to the electromagnetic pole head, the bearing positioning core rod on the loading and unloading robot arm swings at the exit of the electromagnetic pole head and the loading guide rail, and the inlet of the unloading guide rail is located at the electromagnetic pole head.

[0004] The above-mentioned device can use the loading and unloading robotic arm to pick up the outer ring of the bearing from the outlet of the loading guide rail and send it to the electromagnetic pole head for positioning and rotation to achieve grinding processing, but there are still shortcomings: the inlet of the unloading guide rail is located at the electromagnetic pole head that positions the outer ring of the bearing, and the chips generated by the grinding of the outer ring of the bearing can easily fall directly into the unloading guide rail and accumulate, causing the unloading to be stuck. Summary of the Invention

[0005] The present invention aims to solve the above problems in the prior art and provides a bearing inner ring grinding device. The present invention aims to solve the technical problem that the prior art device is prone to jamming and thus not smooth during material feeding.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] The cam is connected to the drive means for rotating the gears so that the gears are rotated in a direction of moving the gears, and the cam is connected to the drive means for rotating the gears so that the gears are rotated in a direction of moving the gears of the driver and the user can rotate the gears in the cam direction to move the gears of the driver and the user to rotate the gears in the cam direction.

[0008] The positioning column set at the passive end of the loading swing arm can be positioned with the inner ring of the bearing. The loading swing arm swings to the loading position of the inner ring of the bearing and can move along the axial direction of the positioning column so that the positioning column is inserted into the inner ring of the bearing. The grinding wheel is an existing device that can process the outer groove of the inner ring of the bearing when it rotates. After that, the loading swing arm can be swung along the outer side of the machine body to the grinding wheel for processing. By arranging a scraper plate 1 perpendicular to the positioning column on the outside of the machine body, the scraper plate 1 is horizontally spaced from the grinding wheel, and the port of the discharge track is set just below the scraper plate 1, the loading swing arm drives the grinding wheel to rotate. When the completed bearing inner ring moves to a point of the scraper plate, it can move outward along the axial direction of the positioning column. At this time, only the bearing inner ring is blocked by the scraper plate and will be pulled down from the positioning column and fall into the discharge track below to realize unloading. Since the grinding position of the bearing inner ring is at the grinding wheel and maintains a certain distance from the discharge track port for unloading the bearing inner ring, it effectively prevents the chips generated at the grinding wheel from directly entering the discharge track and causing accumulation, thereby affecting normal unloading. At the same time, the positioning column and the bearing inner ring are separated into a purely mechanical structure to ensure stable and smooth unloading.

[0009] In the aforementioned bearing inner ring grinding device, a second scraper plate is further fixedly attached to the outer wall of the machine body. The second scraper plate is parallel to the first scraper plate and spaced vertically apart. The positioning post is capable of moving between the first and second scraper plates, driving the bearing inner ring axially toward the first scraper plate, causing the bearing inner ring on the positioning post to be scraped off by the first and second scraper plates. Thus, when the bearing inner ring separates from the positioning post, the second and first scraper plates simultaneously block the bearing inner ring from both the top and bottom, stabilizing the force applied to the bearing inner ring and preventing it from deflecting. This allows the bearing inner ring to more smoothly and accurately fall into the port of the discharge track, ensuring stable material discharge.

[0010] In the aforementioned bearing inner ring grinding device, the machine body is further connected to a feed track for feeding the bearing inner ring, and the scraper plate 1 is horizontally positioned between the feed track and the grinding wheel. This allows the positioning post on the loading swing arm to pick up the bearing inner ring from the feed track, then travel along the outside of the machine body, past the scraper plate 1, and onto the grinding wheel for processing. The material is then unloaded on its way back to the feed track. This fully optimizes the loading swing arm's path, reduces material and energy waste, and improves processing efficiency.

[0011] In the aforementioned bearing inner ring grinding device, the discharge track includes a bottom plate angled downward and vertical side plates. The side plates extend along the length of the bottom plate, and their upper edges are connected to retaining edges positioned toward the machine body. This prevents the bearing inner ring from bouncing as it falls onto the discharge track, ensuring stable discharge of the bearing inner ring.

[0012] In the aforementioned bearing inner ring grinding device, a downwardly concave guide arc is formed in an area of the base plate and the scraper plate that vertically oppose each other. This allows the bearing inner ring to follow the guide arc as it falls into the discharge track, reducing its descent velocity along the length of the track and preventing bouncing during the discharge of the bearing inner ring.

[0013] Compared with the prior art, the advantages of the present invention are as follows:

[0014] The grinding device of the bearing inner ring can take the bearing inner ring away from the grinding station for a certain distance before unloading after the processing of the bearing inner ring is completed, so as to avoid the accumulation of chips generated by the grinding station on the discharge track, so as to make unloading smooth. At the same time, the scraping is realized by the axial movement of the positioning column and the cooperation of the baffle plate. It is a purely mechanical structure without the need for an electromagnet, which is conducive to ensuring the stability of unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0016] Figure 2 2 is a front view structural diagram of this embodiment.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning column and the bearing inner ring in the separated state in this embodiment.

[0018] Figure 4 It is a schematic three-dimensional diagram of the local structure of this embodiment.

[0019] In the figure, 1, machine body; 2, loading swing arm;

[0020] 3. Discharging track; 31. Bottom plate; 32. Side plate; 33. Stop edge; 34. Guide arc surface;

[0021] 4. Grinding wheel; 5. Positioning column; 6. Scraper plate 1; 7. Scraper plate 2; 8. Feed track. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1-4As shown, the grinding device for the inner ring of the bearing includes a body 1, a loading swing arm 2, a discharge track 3 and a grinding wheel 4. The loading swing arm 2, the discharge track 3 and the grinding wheel 4 are all connected to the body 1. The loading swing arm 2 can be driven by an oscillation drive motor to swing. The swing end of the loading swing arm 2 is connected to a positioning column 5 for positioning the inner ring of the bearing. The positioning column 5 is parallel to the swing axis of the loading swing arm 2. The outer end of the positioning column 5 faces the side where the body 1 is located. The loading swing arm 2 can be driven by a cylinder to reciprocate along the axial direction of the positioning column 5. The outer side of the body 1 is fixedly connected by a connecting plate. There is a scraper plate 6, which is parallel to the outer wall of the machine body 1 and spaced apart. The scraper plate 6 and the grinding wheel 4 are arranged in a horizontal direction and spaced apart. The positioning column 5 is perpendicular to the scraper plate 6. When the swing end of the loading swing arm 2 moves to the scraper plate 6, a gap is left between the outer periphery of the positioning column 5 and the edge of the scraper plate 6 so that when the positioning column 5 drives the inner ring of the bearing to move toward the scraper plate 6, the scraper plate 6 can scrape the inner ring of the bearing. The end of the discharge track 3 is located directly below the scraper plate 6 so that the inner ring of the bearing dropped from the scraper plate 6 can directly fall into the discharge track 3. The positioning column 5 set at the passive end of the loading swing arm 2 can be positioned with the inner ring of the bearing. When the loading swing arm 2 swings to the loading position of the inner ring of the bearing, it can move along the axial direction of the positioning column 5 and insert the positioning column 5 into the inner ring of the bearing. The grinding wheel 4 is an existing device that can process the outer groove of the inner ring of the bearing when it rotates. After that, the loading swing arm 2 can swing along the outer side of the machine body 1 to the grinding wheel 4 for processing. By setting a scraper plate 6 arranged perpendicular to the positioning column 5 on the outside of the machine body 1, the scraper plate 6 is spaced apart from the grinding wheel 4, and the discharge rail is The end of the track 3 is located directly below the scraper plate 16. When the loading swing arm 2 drives the ground inner ring of the bearing to move to the scraper plate 16, it can move axially outward along the positioning column 5. The inner ring of the bearing is blocked by the scraper plate 16 and falls off the positioning column 5 to the discharge track 3 below to achieve discharge. Since the grinding position of the bearing inner ring is separated from the discharge track 3, the accumulation of generated chips can be avoided and affect the operation of the discharge track 3. At the same time, the positioning column 5 and the bearing inner ring are separated into a purely mechanical structure to ensure stable and smooth discharge. Preferably, a scraper plate 2 7 is also fixed to the outer wall of the machine body 1. The scraper plate 2 7 is parallel to the scraper plate 16 and is arranged at intervals along the vertical direction. When the swing end of the loading swing arm 2 moves to the scraper plate 16, a gap is left between the outer periphery of the positioning column 5 and the edge of the scraper plate 2 7. When the bearing inner ring separates from the positioning column 5, scraper plate 2 7 and scraper plate 1 6 simultaneously block the bearing inner ring from both sides, ensuring a stable force on the bearing inner ring and preventing deflection. This allows the inner ring to fall more smoothly and accurately into the port of the discharge track 3, ensuring stable material discharge. A feed track 8 for feeding the bearing inner ring is also connected to the machine body 1. Scraper plate 1 6 is horizontally located between the feed track 8 and the grinding wheel 4.In this way, after the positioning post 5 on the loading swing arm 2 retrieves the bearing inner ring from the feed track 8, it can then travel along the outer side of the machine body 1, past the scraper plate 6, and reach the grinding wheel 4 for processing. Unloading occurs on the way back to the feed track 8. This fully optimizes the path of the loading swing arm 2, reduces material and energy waste, and improves processing efficiency. Specifically, the discharge track 3 comprises a bottom plate 31 arranged downwardly and a vertical side plate 32. The side plate 32 extends along the length of the bottom plate 31. The upper edge of the side plate 32 is connected to a stop edge 33, positioned toward the machine body 1. This prevents the bearing inner ring from bouncing as it falls onto the discharge track 3, preventing it from bouncing. The area of the bottom plate 31 vertically opposite the scraper plate 6 features a downwardly concave guide arc 34. As the bearing inner ring falls into the discharge track 3, it moves along the guide arc 34, reducing its descent velocity along the length of the track 3 and preventing bouncing during unloading.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A grinding device for a bearing inner ring, comprising a body (1), a loading swing arm (2), a discharge track (3) and a grinding wheel (4), wherein the loading swing arm (2), the discharge track (3) and the grinding wheel (4) are all connected to the body (1), and the swing end of the loading swing arm (2) is connected to a positioning column (5) for positioning the bearing inner ring, and the positioning column (5) is parallel to the swing axis of the loading swing arm (2) and extends toward the side where the body (1) is located, and the loading swing arm (2) can reciprocate along the axial direction of the positioning column (5), and is characterized in that A scraper plate (6) is fixedly connected to the outer side of the machine body (1), and the scraper plate (6) and the grinding wheel (4) are arranged at intervals in the horizontal direction. The positioning column (5) is perpendicular to the scraper plate (6), and the end of the discharge track (3) is located directly below the scraper plate (6). When the swing end of the loading swing arm (2) moves to the scraper plate (6), the positioning column (5) can axially drive the inner ring of the bearing to move toward the scraper plate (6) and cause the inner ring of the bearing to be scraped by the scraper plate (6) into the discharge track (3) below.

2. The grinding device for the bearing inner ring according to claim 1, characterized in that: A second scraper plate (7) is also fixedly connected to the outer wall of the body (1), and the second scraper plate (7) is parallel to and spaced vertically from the first scraper plate (6). The positioning column (5) can move between the first scraper plate (6) and the second scraper plate (7) and drive the inner ring of the bearing to move axially toward the first scraper plate (6) so that the inner ring of the bearing on the positioning column (5) is scraped off by the first scraper plate (6) and the second scraper plate (7).

3. The grinding device for a bearing inner ring according to claim 1 or 2, characterized in that: The machine body (1) is also connected to a feed track (8) for feeding the bearing inner ring, and the scraper plate (6) is located between the feed track (8) and the grinding wheel (4) in the horizontal direction.

4. The grinding device for a bearing inner ring according to claim 1 or 2, characterized in that: The discharge track (3) comprises a bottom plate (31) arranged obliquely downward and a side plate (32) arranged vertically, wherein the side plate (32) is arranged along the length direction of the bottom plate (31), and the upper edge of the side plate (32) is connected to a stop edge (33) arranged toward the side where the machine body (1) is located.

5. The grinding device for the bearing inner ring according to claim 4, characterized in that: The area of the bottom plate (31) vertically opposite to the scraper plate (6) has a guide arc surface (34) formed by a downward depression.

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