Motorcycle steering bearing race combined machining device and method

Abstract

The application discloses a kind of motorcycle steering bearing sleeve ring combined processing device and method, it is related to bearing sleeve ring grinding polishing technical field, it is based on the polishing principle in prior art, mainly carry out the improvement of polishing grinding limit position for motorcycle bearing sleeve ring, it is specifically embodied in that first end face grinding is carried out to motorcycle bearing sleeve ring, a bidirectional pre-tightening clamping action is provided for motorcycle bearing sleeve ring and is accompanied with active rotation, so that it can also complete the synchronous grinding of outer ring surface raceway and chamfer complex area when completing end face grinding, continue to carry out the synchronous grinding of inside and outside on this technical basis, so that workpiece can complete overall adaptation curved surface profile to avoid artificial intervention all-around grinding polishing, avoid the uneven polishing caused by curved surface geometry difference.

Description

Technical Field

[0001] This invention relates to the field of bearing ring grinding and polishing technology, specifically to a combined processing device and method for motorcycle steering bearing rings. Background Technology

[0002] Motorcycle steering bearings mostly use separable thrust angular contact ball bearings or angular contact thrust spherical plain bearings, mainly bearing axial loads and a certain radial load, and have a self-aligning function to compensate for installation errors. Among them, angular contact thrust spherical plain bearings are widely used. They have a stronger load-bearing capacity (axial load can be 3 to 5 times that of thrust ball bearings) through spherical sliding contact, and do not require frequent lubrication. For angular contact thrust spherical plain bearings, the bearing rings are the key components. The bearing inner ring is usually tightly fitted to the shaft and rotates synchronously with the shaft. The outer wall of the bearing inner ring is in direct contact with the rolling elements. In order to reduce the friction between the outer wall of the bearing inner ring and the rolling elements, it is usually necessary to polish it to reduce the surface roughness of the outer wall of the bearing inner ring, thereby reducing the friction between the outer wall of the bearing inner ring and the rolling elements.

[0003] In the prior art, referring to a ball bearing inner wall polishing device for metal manufacturing with patent application number 202110228331.0, the grinding and polishing mechanism uses a gap feeding, linkage clamping and material recovery mechanism to complete the continuous polishing of the ball bearing. However, in the actual polishing process, the polishing of the bearing uses a fixed speed and pressure, which cannot adapt to the curved geometric differences of the bearing ring surface, resulting in uneven polishing. More importantly, for thrust spherical bearings, the complex areas such as raceways and chamfers on the outer ring surface require multiple positioning or manual intervention, which cannot adapt to the curved contour and thus cannot achieve complete polishing. Therefore, this application proposes a solution. Summary of the Invention

[0004] The purpose of this invention is to provide a combined processing device and method for motorcycle steering bearing rings, which solves the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solution: A combined processing device for motorcycle steering bearing rings, comprising an alignment base plate, a feeding vertical plate, and a polishing base. An execution rotation assembly is mounted on the alignment base plate. A feeding box is provided on the side of the alignment base plate near the feeding vertical plate. A pushing assembly for intermittent workpiece feeding is installed inside the feeding box. An end grinding disc for receiving the workpiece is mounted on the output end of the execution rotation assembly. A locking hole for unidirectional workpiece locking is provided on the end grinding disc. End grinding discs are provided on both sides corresponding to the locking hole. The grinding assembly includes a front grinding ring disposed on the feeding side of the locking hole and a rear wedge grinding ring disposed on the discharge side of the locking hole; a grinding assembly corresponding to the locking hole at the bottom is installed on the polishing base, the grinding assembly includes symmetrically arranged roller supports, an outer grinding disc is suspended above the middle of the pair of roller supports, an electric push rod one and an electric push rod two are cross-installed on the polishing base, a rear clamp is installed at the output end of the electric push rod one, and an inner grinding disc penetrating the rear clamp is installed at the output end of the electric push rod two.

[0006] The rotation assembly is further configured such that: the rotating assembly includes a motor that is laterally slidably disposed above the alignment substrate; the output end of the motor is connected to a rotating rod via a transmission device; and the other end of the rotating rod is connected to the end grinding disc.

[0007] A further configuration is provided: a cylinder three is mounted on the rear side of the alignment substrate, and the output end of the cylinder three is connected to the motor mounting base. The cylinder three is activated to drive the end grinding disc to move horizontally.

[0008] Further configuration: the pushing component includes a cylinder one disposed on one side inside the feeding box, a partition is installed in the middle of the feeding box, the output end of the cylinder one is connected to a push plate two that penetrates the partition, and the feeding box has an outlet that matches the locking hole away from the cylinder one, and the inner ring side of the front grinding ring matches the outlet.

[0009] A further configuration is provided: a support rod is installed above the side of the feed box near the front grinding ring, and the rear wedge mill is connected to the support rod and is coaxially arranged with the front grinding ring.

[0010] The configuration is further defined as follows: a cylinder 2 is suspended in the middle of the lower side of the alignment substrate, and the output end of the cylinder 2 is connected to a push plate 1 that is aligned with the locking hole at the bottom. The push plate 1 passes through the locking hole and is aligned with the support gap of a pair of rotating rollers.

[0011] The following configuration is further provided: a fixing plate is installed on the upper end of the feeding plate away from the feeding side, and a cylinder is installed on the lower end of the fixing plate. The output end of the cylinder is connected to the outer grinding disc, and the lower side of the outer grinding disc is in contact with the outer surface of several workpieces.

[0012] The further configuration is as follows: the polishing base is provided with a rotating hinge assembly at the bottom of the electric push rod two, so that the electric push rod two follows the electric push rod one to perform tilting and sliding movements.

[0013] A method for combined machining of motorcycle steering bearing rings includes the following steps:

[0014] S1: Intermittent pushing phase of the workpiece;

[0015] S2: End polishing stage;

[0016] S3: Simultaneous polishing stage on both the inner and outer sides;

[0017] S4: Material feeding stage.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention addresses the problem of uneven polishing caused by using fixed rotation speed and pressure, which cannot adapt to the geometric differences of the curved surface of bearing rings. Based on the polishing principles in existing technologies, the main improvement is to limit the polishing position of motorcycle bearing ring workpieces. Specifically, the end face of the motorcycle bearing ring is first polished, and a bidirectional pre-tightening clamping action is provided for the motorcycle bearing ring, accompanied by active rotation, so that the complex areas of the raceway and chamfer on the outer ring surface can be polished simultaneously while the end face is being polished. On this basis, the inner and outer sides are then polished simultaneously, so that the workpiece can be fully adapted to the curved surface contour and polished in all directions without manual intervention, avoiding uneven polishing caused by differences in curved surface geometry.

[0020] 2. During the synchronous grinding of the inner and outer sides of the bearing rings, electric push rods 1 and 2, which are arranged in a cross configuration, are combined with push plate 1 and cylinder 4 to drive the inner and outer grinding discs respectively to perform synchronous grinding of the stacked bearing rings. Specifically, electric push rod 1 drives the rear clamp to cooperate with push plate 1 to perform axial limiting and fixing clamping of multiple stacked bearing rings. Then, under the same direction of rotation of the symmetrically arranged rotating roller support at the bottom, multiple bearing rings are driven to rotate synchronously. Then, the outer grinding disc contacts the outer side of multiple bearing rings and the inner grinding disc corresponds to the inner side of multiple bearing rings to complete the synchronous polishing of the inner and outer sides. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a bottom-view structural diagram of the present invention;

[0024] Figure 3 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 4 This is a structural diagram of the feeding assembly of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation of the end grinding disc of the present invention;

[0027] Figure 6 This is a schematic diagram of the installation structure of the grinding assembly of the present invention;

[0028] Figure 7 This is a structural diagram of the grinding assembly of the present invention;

[0029] Figure 8 This is a cross-sectional schematic diagram of the roller support for the steering bearing ring of the present invention.

[0030] In the diagram: 1. Alignment base plate; 2. Feeding vertical plate; 3. Polishing base; 4. Feed box; 5. End grinding disc; 6. Rotary roller support; 7. Workpiece; 8. Outer grinding disc; 9. Front grinding ring; 10. Support rod; 11. Rear wedge grinder; 12. Cylinder 1; 13. Cylinder 2; 14. Push plate 1; 15. Electric push rod 1; 16. Electric push rod 2; 17. Rear clamp; 18. Inner grinding disc; 19. Partition plate; 20. Push plate 2; 21. Cylinder 3; 22. Fixing plate; 23. Cylinder 4; 24. Motor; 25. Transmission device; 26. Rotating rod; 27. Locking hole. Detailed Implementation

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: To address the problem of uneven polishing caused by the inability to adapt to the surface geometry differences of bearing races when using a fixed rotation speed and pressure, the following technical solution is proposed:

[0033] Reference Figures 1-8As shown, this embodiment of a motorcycle steering bearing ring joint processing device includes an alignment base plate 1, a feeding vertical plate 2, and a polishing base 3. An execution rotation assembly is installed on the alignment base plate 1. A feeding box 4 is provided on the side of the alignment base plate 1 near the feeding vertical plate 2. A pushing assembly for intermittent feeding of workpiece 7 is installed in the feeding box 4. An end grinding disc 5 for receiving workpiece 7 is installed at the output end of the execution rotation assembly. A locking hole 27 for one-way locking of workpiece 7 is opened on the end grinding disc 5. End grinding assemblies are provided on both sides of the end grinding disc 5 corresponding to the locking hole 27. The locking hole 27 on the end grinding disc 5 is a hole shape that gradually increases in size along the feeding direction. The material around the locking hole 27 of the end grinding disc 5 is a rubber material. It can be pushed by the push plate 20 and can also be stably clamped with a variable diameter structure to avoid falling off during the end grinding process.

[0034] Reference Figure 4 and Figure 6 As shown, the end mill assembly includes a front grinding ring 9 disposed on the feeding side of the locking hole 27 and a rear wedge mill 11 disposed on the discharging side of the locking hole 27; a grinding assembly corresponding to the locking hole 27 at the bottom is installed on the polishing base 3. The grinding assembly includes symmetrically arranged roller supports 6. An outer grinding disc 8 is suspended above the middle of a pair of roller supports 6. Electric push rod 15 and electric push rod 26 are cross-mounted on the polishing base 3. A rear clamp 17 is installed at the output end of electric push rod 15, and an inner grinding disc 18 penetrating the rear clamp 17 is installed at the output end of electric push rod 26.

[0035] Reference Figure 4 , Figure 5 and Figure 6 As shown, the pushing component includes a cylinder 12 located inside the feed box 4 on one side. A partition 19 is installed in the middle of the feed box 4. The output end of the cylinder 12 is connected to a push plate 20 that passes through the partition 19. The feed box 4 has an outlet that matches the locking hole 27 away from the cylinder 12. The inner ring side of the front grinding ring 9 matches the outlet. A support rod 10 is installed on the upper side of the feed box 4 near the front grinding ring 9. The rear wedge grinder 11 is connected to the support rod 10 and is coaxially set with the front grinding ring 9. During the end grinding process, the push plate 20 provides a pushing and clamping effect on one side of the bearing ring to achieve single-sided fixation. The rear wedge grinder 11 can also achieve fixation on the other side of the bearing ring. Finally, during the active rotation of the end grinding disc 5, several clamped bearing rings are driven to achieve synchronous end polishing.

[0036] During the pushing process, cylinder 12 drives pusher plate 20 to move horizontally, and the bearing rings stacked in the feed box 4 can be placed in close contact with each other according to their length under the action of partition plate 19. The bearing ring at the bottom forms a stable fit with the bottom of the feed box 4. Pusher plate 20 pushes the bearing ring at the bottom to move it into the locking hole 27 on the end grinding plate 5 (the pusher plate 20 is a conical structure. After pushing the bearing ring at the bottom, it returns and can accurately reset under the squeezing action of the conical structure to avoid the inability to form continuous pushing).

[0037] Basic Principle: This invention is based on the polishing principle in the prior art, and mainly improves the polishing and grinding position of the motorcycle bearing ring workpiece 7. Specifically, the end face of the motorcycle bearing ring is first ground, and a bidirectional pre-tightening clamping action is provided for the motorcycle bearing ring, accompanied by active rotation, so that the complex areas of the outer ring surface raceway and chamfer can be ground simultaneously while the end face is ground. On this basis, the inner and outer sides are ground simultaneously, so that the workpiece can be fully adapted to the curved surface contour and polished in all directions without manual intervention, avoiding uneven polishing caused by differences in curved surface geometry.

[0038] It should be noted that during the synchronous grinding of the inner and outer sides of the bearing rings, the electric push rods 15 and 16, which are arranged in a cross configuration, are combined with the push plate 14 and the cylinder 23 to drive the inner grinding disc 18 and the outer grinding disc 8 to perform synchronous grinding of the stacked bearing rings. Specifically, the electric push rod 15 drives the rear clamp 17 to cooperate with the push plate 14 to perform axial positioning and fixing of the multiple stacked bearing rings. Then, under the same direction of rotation of the symmetrically arranged roller support 6 at the bottom, the multiple bearing rings are rotated synchronously. Then, the outer grinding disc 8 contacts the outer side of the multiple bearing rings, and the inner grinding disc 18 corresponds to the inner side of the multiple bearing rings to complete the synchronous polishing of the inner and outer sides.

[0039] To this end, the following are added: a second cylinder 13 is suspended in the middle of the lower side of the alignment base plate 1. The output end of the second cylinder 13 is connected to a push plate 14 that is aligned with the locking hole 27 at the bottom. The push plate 14 passes through the locking hole 27 and is aligned with the support gap of a pair of rotating roller supports 6. A fixing plate 22 is installed on the upper end of the feeding plate 2 away from the feeding side. A fourth cylinder 23 is installed on the lower end of the fixing plate 22. The output end of the fourth cylinder 23 is connected to the outer grinding disc 8. The lower side of the outer grinding disc 8 is in contact with the outer surface of several workpieces 7. A rotating hinge assembly is provided on the bottom of the electric push rod 16 corresponding to the polishing base 3, so that the electric push rod 16 can follow the electric push rod 15 to tilt and slide.

[0040] Referring to the above, during discharge, firstly, the electric push rod 16 drives the inner grinding disc 18 to move out multiple bearing rings, and finally engages with the rear clamp 17. Then, the electric push rod 15 retracts, driving the electric push rod 16 and the inner grinding disc 18 to tilt upwards and deviate from the inner side of multiple bearing rings. At this time, the rotation direction of one of the rotating roller supports 6 is changed so that the rotation directions of a pair of rotating roller supports 6 are opposite, which can quickly realize the discharge of multiple bearing rings.

[0041] Example 2: This example is a structural optimization of the structure in Example 1:

[0042] Reference Figures 1-3 As shown, the rotating assembly includes a motor 24 that is laterally slidably disposed above the alignment base plate 1. The output end of the motor 24 is connected to a rotating rod 26 via a transmission device 25. The other end of the rotating rod 26 is connected to the end grinding plate 5. A cylinder 21 is mounted on the rear side of the alignment base plate 1. The output end of the cylinder 21 is connected to the motor 24 mounting base. When the cylinder 21 is started, it drives the end grinding plate 5 to move horizontally.

[0043] Combination Figure 3 As shown, during the polishing process of bearing rings, when processing bearing rings of different specifications, cylinder 21 provides horizontal movement of the rotating component slidably mounted on the alignment base plate 1, while motor 24 provides rotation control of the rotating end grinding disc 5, enabling synchronous end grinding. Therefore, after performing the above rotation control and horizontal displacement control, synchronous polishing of both ends can be performed on bearing rings of different specifications, thereby achieving a polishing method that uses end grinding and side grinding separately to adapt to the surface geometry differences of the bearing rings and form uniform polishing, thus improving polishing efficiency.

[0044] It should be reiterated that the polishing of the entire bearing ring is carried out continuously and without obstruction. It is based on two polishing stages: concentrated end grinding followed by batch side grinding, which are combined to adapt to the curved surface contour of the bearing ring.

[0045] Example 3: This example combines the technical content of Example 1 and Example 2 to form a method for joint processing of motorcycle steering bearing rings, including the following steps:

[0046] S1: During the intermittent pushing stage of workpiece 7, cylinder 12 drives push plate 20 to move horizontally, and the bearing rings stacked in the feed box 4 can be placed in close contact with each other according to their length under the action of partition 19. The bearing ring at the bottom forms a stable fit with the bottom of the feed box 4. Push plate 20 pushes the bearing ring at the bottom to move it into the locking hole 27 on the end grinding plate 5, completing the pushing process of a single bearing ring. After the end grinding of this batch is completed, the cycle is repeated to complete the intermittent pushing and feeding.

[0047] S2: End polishing stage. During the end grinding process, the bearing ring is fixed on one side by the pushing and clamping effect provided by the push plate 20. The bearing ring can also be fixed on the other side by the rear wedge grinding 11. Finally, the end grinding disc 5 drives several clamped bearing rings to achieve synchronous end polishing during the active rotation.

[0048] S3: In the synchronous polishing stage of inner and outer sides, electric push rods 15 and 16 are arranged in a cross configuration. They are combined with push plate 14 and cylinder 23 to drive the inner grinding disc 18 and the outer grinding disc 8 to perform synchronous polishing of the inner and outer sides of the stacked bearing rings. Specifically, electric push rod 15 drives the rear clamp 17 to cooperate with push plate 14 to perform axial limiting and fixing clamping of multiple stacked bearing rings. Then, under the same direction of rotation of the symmetrically arranged roller support 6 at the bottom, multiple bearing rings are driven to rotate synchronously. Then, the outer grinding disc 8 contacts the outer side of multiple bearing rings and the inner grinding disc 18 corresponds to the inner side of multiple bearing rings to complete the synchronous polishing of inner and outer sides.

[0049] S4: During the feeding stage, when discharging, the electric push rod 16 first drives the inner grinding disc 18 to move out multiple bearing rings and finally engages with the rear clamp 17. Then, the electric push rod 15 retracts, driving the electric push rod 16 and the inner grinding disc 18 to tilt upward and deviate from the inner side of multiple bearing rings. At this time, the rotation direction of one of the rotating roller supports 6 is changed so that the rotation directions of a pair of rotating roller supports 6 are opposite, which can quickly realize the discharge of multiple bearing rings.

[0050] In summary, this invention is based on the polishing principle in the prior art, and mainly improves the polishing and grinding position of the motorcycle bearing ring workpiece 7. Specifically, the end face of the motorcycle bearing ring is first ground, and a bidirectional pre-tightening clamping action is provided for the motorcycle bearing ring, accompanied by active rotation, so that the complex areas of the outer ring surface raceway and chamfer can be ground simultaneously while the end face is ground. On this basis, the inner and outer sides are ground simultaneously, so that the workpiece can be fully adapted to the curved surface contour and polished in all directions without manual intervention, avoiding uneven polishing caused by differences in curved surface geometry.

[0051] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0052] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A combined processing device for motorcycle steering bearing rings, comprising an alignment base plate (1), a feeding vertical plate (2), and a polishing base (3), characterized in that, An execution rotation assembly is mounted on the alignment base plate (1). A feed box (4) is provided on the side of the alignment base plate (1) near the feed vertical plate (2). A push assembly for intermittent feeding of the workpiece (7) is installed in the feed box (4). An end grinding disc (5) for receiving the workpiece (7) is installed at the output end of the execution rotation assembly. A locking hole (27) for unidirectional locking of the workpiece (7) is provided on the end grinding disc (5). End grinding assemblies are provided on both sides of the end grinding disc (5) corresponding to the locking hole (27). The end grinding assembly includes a front grinding ring (9) provided on the feeding side of the locking hole (27) and a grinding ring (9) provided on the feeding side of the locking hole (27). A rear-end wedge mill (11) is located on the material outlet side of the locking hole (27); a grinding assembly corresponding to the locking hole (27) at the bottom is installed on the grinding base (3). The grinding assembly includes symmetrically arranged roller supports (6). An outer grinding disc (8) is suspended above the middle of the pair of roller supports (6). An electric push rod one (15) and an electric push rod two (16) are cross-installed on the grinding base (3). A rear-end clamp (17) is installed at the output end of the electric push rod one (15). An inner grinding disc (18) penetrating the rear-end clamp (17) is installed at the output end of the electric push rod two (16). The pushing component includes a cylinder (12) disposed on one side inside the feed box (4), a partition (19) is installed in the middle of the feed box (4), the output end of the cylinder (12) is connected to a push plate (20) that passes through the partition (19), and the feed box (4) is provided with a discharge port that matches the locking hole (27) away from the cylinder (12), and the inner ring side of the front grinding ring (9) matches the discharge port; A cylinder 2 (13) is suspended in the middle of the lower side of the alignment substrate (1). The output end of the cylinder 2 (13) is connected to a push plate 1 (14) that is aligned with the locking hole (27) at the bottom. The push plate 1 (14) passes through the locking hole (27) and is aligned with the support gap of a pair of rotating roller supports (6).

2. The combined machining device for motorcycle steering bearing rings according to claim 1, characterized in that, The rotating assembly includes a motor (24) that is laterally slidably disposed above the alignment substrate (1). The output end of the motor (24) is connected to a rotating rod (26) via a transmission device (25). The other end of the rotating rod (26) is connected to the end grinding disc (5).

3. The combined machining device for motorcycle steering bearing rings according to claim 2, characterized in that, A cylinder three (21) is installed on the rear side of the alignment substrate (1). The output end of the cylinder three (21) is connected to the motor (24) mounting base. The cylinder three (21) starts and drives the end grinding disc (5) to move horizontally.

4. The motorcycle steering bearing ring combined processing device according to claim 3, characterized in that, A support rod (10) is installed above the feed box (4) on the side near the front grinding ring (9). The rear wedge mill (11) is connected to the support rod (10) and is set on the same axis as the front grinding ring (9).

5. The motorcycle steering bearing ring combined processing device according to claim 1, characterized in that, A fixing plate (22) is installed on the upper end of the feed plate (2) away from the feed side. A cylinder (23) is installed on the lower end of the fixing plate (22). The output end of the cylinder (23) is connected to the outer grinding disc (8). The lower side of the outer grinding disc (8) is in contact with the outer surface of several workpieces (7).

6. The combined machining device for motorcycle steering bearing rings according to claim 1, characterized in that, The polishing base (3) is provided with a rotating hinge assembly at the bottom of the electric push rod two (16) so that the electric push rod two (16) can follow the electric push rod one (15) to perform tilting and sliding operations.

7. A method for combined machining of motorcycle steering bearing rings, employing a combined machining apparatus for motorcycle steering bearing rings as described in any one of claims 1-6, characterized in that, Includes the following steps: The intermittent pushing stage, end polishing stage, inner and outer synchronous polishing stage and unloading stage of workpiece (7).

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