Motorcycle steering bearing ring combined machining device and method

Abstract

The invention discloses a combined machining device and method for a steering bearing ring of a motorcycle, relates to the technical field of grinding and polishing of bearing rings, and mainly improves the polishing and grinding limiting position of the bearing ring of the motorcycle on the basis of the polishing principle in the prior art. Specifically, the end face of the motorcycle bearing ring is polished firstly, a bidirectional pre-tightening clamping action is provided for the motorcycle bearing ring, and the motorcycle bearing ring rotates actively, so that synchronous polishing of a raceway and a chamfer complex area on the surface of an outer ring can be completed while the end face polishing is completed; and on the basis of the technology, synchronous grinding of the inner side and the outer side is continued, so that the workpiece can be comprehensively matched with the curved surface contour to avoid all-directional grinding and polishing of manual intervention, and uneven polishing caused by geometric difference of the curved surface is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bearing ring grinding and polishing, and in particular to a combined processing device and method for a motorcycle steering bearing ring. Background Art

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

[0003] In the prior art, a ball bearing inner wall polishing device for metal manufacturing with reference to patent application number 2021102283310 is based on the grinding and polishing mechanism, which uses gap feeding, linkage clamping and material recovery mechanism to jointly complete the continuous polishing processing of the ball bearing; however, in the actual polishing process, the polishing processing of the bearing adopts a fixed speed and pressure, which cannot adapt to the surface geometry differences of the bearing ring surface, resulting in uneven polishing. What is more important is that for thrust spherical bearings, the complex areas such as the raceway and chamfer on the outer ring surface require multiple positioning or manual intervention, which cannot adapt to the curved surface contour and thus cannot achieve complete polishing. For this reason, this application proposes a solution. Summary of the Invention

[0004] The object of the present invention is to provide a combined processing device and method for motorcycle steering bearing rings, so as to solve the problems mentioned in the above background technology.

[0005] The object of the present invention can be achieved by the following technical solution: a motorcycle steering bearing ring combined processing device, comprising a positioning base plate, a feed vertical plate and a polishing base, the positioning base plate is equipped with an execution rotation assembly, the positioning base plate is provided with a feed box on the side close to the feed vertical plate, and the feed box is equipped with a pushing assembly for intermittent feeding of workpieces; The output end of the execution rotation assembly is equipped with an end grinding disc for receiving the workpiece, the end grinding disc is provided with a locking hole for one-way locking of the workpiece, and the end grinding disc is provided with end grinding assemblies on both sides of the corresponding locking hole; The end grinding assembly includes a front grinding ring disposed on the feed side of the locking hole and a rear wedge grinding disposed on the discharge side of the locking hole, and 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, and an outer grinding disc is suspended in the middle above a pair of the roller supports. An electric push rod one and an electric push rod two are cross-mounted on the polishing base. The output end of the electric push rod one is installed with a rear clamping seat, and the output end of the electric push rod two is installed with an inner grinding disc penetrating through the rear clamping seat.

[0006] It is further set that: the execution rotating assembly includes a motor slid laterally above the alignment substrate, the output end of the motor is connected with a rotating rod through a transmission device, and the other end of the rotating rod is connected with the end grinding disc.

[0007] It is further set that: a cylinder three is installed at the rear side of the alignment substrate, the output end of the cylinder three is connected with the motor mounting seat, and when the cylinder three is started, it drives the end grinding disc to move horizontally.

[0008] It is further set that: the pushing assembly includes a cylinder one disposed on one side inside the feed box, a partition is installed in the middle of the feed box, the output end of the cylinder one is connected with a push plate two penetrating through the partition, and a discharge port matching the locking hole is opened at the side of the feed box away from the cylinder one, and the inner ring side of the front grinding ring matches the discharge port.

[0009] It is further set that: a support rod is installed above one side of the feed box close to the front grinding ring, the rear wedge grinding is connected with the support rod and is coaxially arranged with the front grinding ring.

[0010] It is further set that: a cylinder two is suspended in the middle below the alignment substrate, the output end of the cylinder two is connected with a push plate one aligned with the locking hole at the bottom, and the push plate one penetrates through the locking hole and is aligned with the supporting gap between a pair of roller supports.

[0011] It is further set that: a fixing plate is installed at the upper end of the feed vertical plate away from the feed side, a cylinder four is installed at the lower end of the fixing plate, the output end of the cylinder four is connected with the outer grinding disc, and the lower side of the outer grinding disc is attached to the outer surfaces of a plurality of workpieces.

[0012] It is further set that: a rotating hinge assembly is arranged at the bottom of the rod of the electric push rod two corresponding to the polishing base, so that the electric push rod two follows the electric push rod one to perform an inclined sliding action.

[0013] The present invention also proposes a combined processing method for a motorcycle steering bearing race, which is realized by using the above-mentioned combined processing device for a motorcycle steering bearing race, and specifically includes: S1: The intermittent feeding stage of the workpiece; S2: End polishing stage; S3: Synchronous polishing stage for inner and outer sides; S4: Blanking stage.

[0014] The present invention has the following beneficial effects: 1. The present invention aims at the problem that the fixed rotation speed and pressure cannot adapt to the curved surface geometric differences of the bearing ring surface, resulting in uneven polishing. Based on the polishing principle in the prior art, it mainly improves the limited position of polishing and grinding for the motorcycle bearing ring workpiece. Specifically, it first performs end surface grinding on the motorcycle bearing ring, provides a bi-directional pre-tightening clamping action for the motorcycle bearing ring and is accompanied by active rotation, so that when the end surface grinding is completed, the synchronous grinding of the outer ring surface raceway and the complex chamfer area can also be completed. On this technical basis, the synchronous grinding of the inner and outer sides is continued, enabling the workpiece to complete a full-range polishing and grinding that fully adapts to the curved surface profile and avoids manual intervention, thus avoiding uneven polishing caused by curved surface geometric differences. 2. During the synchronous grinding process of the inner and outer sides of the bearing ring, the cross-set electric push rod 1 and electric push rod 2 are combined with push plate 1 and cylinder 4 to drive the inner grinding disc and the outer grinding disc respectively to form synchronous grinding of the inner and outer sides of the stacked bearing rings. Specifically, the electric push rod 1 drives the rear clamping seat to cooperate with the push plate 1 to form a fixed clamping for axially limiting the stacked bearing rings. Then, under the co-rotating action of the roller supports symmetrically arranged at the bottom, the multiple bearing rings are driven to rotate synchronously. Subsequently, the outer grinding disc contacts the outer sides of the multiple bearing rings, and the inner grinding disc corresponds to the inner sides of the multiple bearing rings to complete the synchronous polishing of the inner and outer sides. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 It is a cross-sectional view of the overall structure of the present invention; Figure 4 It is a structural diagram of the feeding component of the present invention; Figure 5 It is an installation schematic diagram of the end grinding disc of the present invention; Figure 6Schematic diagram of the installation structure of the same grinding component of the present invention; Figure 7 Structural diagram of the same grinding component of the present invention; Figure 8 Schematic cross-sectional view of the roller support of the steering bearing ring of the present invention.

[0017] In the figure: 1, alignment substrate; 2, feeding vertical plate; 3, polishing base; 4, feeding box; 5, end grinding disc; 6, roller support; 7, workpiece; 8, outer grinding disc; 9, front grinding ring; 10, support rod; 11, rear wedge grinding; 12, cylinder 1; 13, cylinder 2; 14, push plate 1; 15, electric push rod 1; 16, electric push rod 2; 17, rear clamping seat; 18, inner grinding disc; 19, partition board; 20, push plate 2; 21, cylinder 3; 22, fixing plate; 23, cylinder 4; 24, motor; 25, transmission device; 26, rotating rod; 27, locking hole. Specific implementation mode

[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Aiming at the problem that the fixed rotation speed and pressure cannot adapt to the surface curvature geometric differences of the bearing ring, resulting in uneven polishing, the following technical solutions are proposed: Refer to Figures 1 - 8 As shown, in this embodiment, a combined processing device for a motorcycle steering bearing ring includes an alignment substrate 1, a feeding vertical plate 2 and a polishing base 3. An execution rotation assembly is installed on the alignment substrate 1, and a feeding box 4 is arranged on one side of the alignment substrate 1 close to the feeding vertical plate 2. A pushing assembly for intermittently feeding the workpiece 7 is installed in the feeding box 4; The output end of the execution rotation assembly is installed with an end grinding disc 5 for receiving the workpiece 7. The end grinding disc 5 is provided with locking holes 27 for unidirectional locking of the workpiece 7. End grinding components are arranged on both sides of the end grinding disc 5 corresponding to the locking holes 27. The locking holes 27 on the end grinding disc 5 are in a hole shape that gradually becomes larger along the feeding direction, and the material on the periphery of the end grinding disc 5 corresponding to the locking holes 27 is a gelatinous material, which can be pushed by the push plate 20 to complete the movement, and can also achieve stable clamping with a variable diameter structure, avoiding falling off during the end grinding process; Refer to Figure 4 and Figure 6As shown, the end grinding assembly includes a front grinding ring 9 disposed on the feed side of the locking hole 27 and a rear wedge grinder 11 disposed on the discharge 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 in the middle above the pair of roller supports 6. An electric push rod 15 and an electric push rod 16 are cross-mounted on the polishing base 3. The output end of the electric push rod 15 is installed with a rear clamping seat 17, and the output end of the electric push rod 16 is installed with an inner grinding disc 18 passing through the rear clamping seat 17; Refer to Figure 4 、 Figure 5 and Figure 6 As shown, the pushing assembly 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 with a push plate 20 passing through the partition 19. An outlet corresponding to the locking hole 27 is provided on the feed box 4 away from the cylinder 12, and the inner ring side of the front grinding ring 9 matches the outlet; A support rod 10 is installed above one side of the feed box 4 close to the front grinding ring 9. The rear wedge grinder 11 is connected to the support rod 10 and is coaxially arranged with the front grinding ring 9. During the end grinding process, under the pushing and clamping effect provided by the push plate 20 on one side of the bearing ring, single-sided fixation is achieved, and the other side of the bearing ring can be fixed by the rear wedge grinder 11. Finally, during the active rotation of the end grinding disc 5, several clamped bearing rings are driven to achieve synchronous polishing of the ends; During pushing, the cylinder 12 drives the push plate 20 to move horizontally. The bearing rings stacked in the feed box 4 can be placed in lengthwise contact under the action of the partition 19. The bearing ring at the bottom forms a stable fit with the bottom of the feed box 4. The push plate 20 can drive the bearing ring at the bottom to move into the locking hole 27 on the end grinding disc 5 (the push plate 20 is a conical structure. After completing the pushing of the bearing ring at the bottom and returning, it can be accurately reset under the extrusion of the conical structure to avoid failure to form continuous pushing); Basic principle: The present invention is based on the polishing principle in the prior art, mainly improving the limited position of the polishing and grinding of the motorcycle bearing ring workpiece 7. Specifically, it first performs end face grinding on the motorcycle bearing ring, provides a two-way pre-tightening clamping action for the motorcycle bearing ring and is accompanied by active rotation, so that when the end face grinding is completed, the synchronous grinding of the outer ring surface raceway and the complex chamfer area can also be completed; on this technical basis, the synchronous grinding of the inner and outer sides is continued, so that the workpiece can complete the all-round polishing and grinding that fully adapts to the curved surface contour and avoids manual intervention, and avoids uneven polishing caused by the geometric differences of the curved surfaces; It should be noted here that during the synchronous grinding of the inner and outer sides of the bearing ring, the electric push rod one 15 and the electric push rod two 16 arranged in a cross manner are combined with the push plate one 14 and the cylinder four 23 to drive the inner grinding disc 18 and the outer grinding disc 8 respectively to form synchronous grinding of the inner and outer sides of the superimposed bearing rings; Specifically, the electric push rod one 15 is used to drive the rear end clamp seat 17 to cooperate with the push plate one 14 to form a fixed clamping for axially limiting the superimposed bearing rings. Then, under the same-direction rotation of the roller supports 6 symmetrically arranged at the bottom, the multiple bearing rings are driven to rotate synchronously. Then, the outer grinding disc 8 contacts the outer sides of the multiple bearing rings, and the inner grinding disc 18 corresponds to the inner sides of the multiple bearing rings to complete synchronous polishing of the inner and outer sides.

[0020] Therefore, an additional structure is provided: a cylinder two 13 is suspended in the middle of the lower side of the alignment substrate 1. The output end of the cylinder two 13 is connected to a push plate one 14 that is aligned with the locking hole 27 at the bottom. And the push plate one 14 passes through the locking hole 27 and is aligned with the supporting gap of a pair of roller supports 6. At the upper end of the feeding vertical plate 2 away from the feeding side, a fixing plate 22 is installed. At the lower end of the fixing plate 22, a cylinder four 23 is installed. The output end of the cylinder four 23 is connected to the outer grinding disc 8. The lower side of the outer grinding disc 8 is attached to the outer surfaces of several workpieces 7. The polishing base 3 is provided with a rotating hinge assembly corresponding to the bottom of the electric push rod two 16 for the electric push rod two 16 to perform an inclined sliding action following the electric push rod one 15.

[0021] Referring to the above, during discharging, first, the electric push rod two 16 drives the inner grinding disc 18 to move out of the multiple bearing rings and finally engages with the rear end clamp seat 17. Then, the electric push rod one 15 contracts, driving the electric push rod two 16 and the inner grinding disc 18 to complete an upward inclination and deviate from the inner sides of the multiple bearing rings. At this time, changing the rotation direction of one of the roller supports 6 so that the rotation directions of the pair of roller supports 6 are the same can quickly realize the discharging of the multiple bearing rings.

[0022] Embodiment 2: This embodiment is to optimize the structure in Embodiment 1: Referring to Figures 1 - 3 As shown, the execution rotation assembly includes a motor 24 slid laterally above the alignment substrate 1. The output end of the motor 24 is connected to a rotating rod 26 through a transmission device 25. The other end of the rotating rod 26 is connected to the end grinding disc 5. A cylinder three 21 is installed at the rear side of the alignment substrate 1. The output end of the cylinder three 21 is connected to the mounting seat of the motor 24. When the cylinder three 21 is started, it drives the end grinding disc 5 to perform a horizontal movement; Combined with Figure 3As shown in the figure, during the polishing process of the bearing ring, when processing bearing rings of different specifications, the cylinder three 21 provides the horizontal movement of the execution rotating assembly slidably mounted on the alignment substrate 1, and the motor 24 provides the rotation control of the end grinding disc 5 rotatably arranged, so that it has a synchronous end grinding effect. Therefore, after the above rotation control and horizontal displacement control, it is possible to perform synchronous polishing on both ends while adapting to different bearing ring specifications, and then realize uniform polishing by adopting the polishing methods of end grinding and side grinding respectively to adapt to the curved surface geometry difference of the bearing ring surface, thus improving the polishing efficiency. It should be noted again that the polishing process of the entire bearing ring is carried out continuously and without obstruction, and is based on the combination of two polishing stages of first concentrating on end grinding and then batch side grinding to adapt to the curved surface profile of the bearing ring surface.

[0023] Embodiment 3: This embodiment combines the technical contents of Embodiment 1 and Embodiment 2 to form a combined processing method for motorcycle steering bearing rings, including the following steps: S1: Intermittent feeding stage of the workpiece 7. The cylinder one 12 drives the push plate two 20 to move horizontally. The bearing rings stacked in the feeding box 4 can be placed in lengthwise contact under the action of the partition 19, and the bearing ring at the bottom forms a stable fit with the bottom of the feeding box 4. The push plate 20 can push the bearing ring at the bottom to drive it into the locking hole 27 on the end grinding disc 5, completing the pushing process of a single bearing ring. After the end grinding of this batch is completed, the cycle is carried out to complete the intermittent feeding. S2: End polishing stage. During the end grinding process, unilateral fixation is achieved under the pushing and clamping effect of the push plate two 20 on one side of the bearing ring, and fixation on the other side of the bearing ring can be achieved by the rear-end wedge grinding 11. Finally, during the active rotation of the end grinding disc 5, several clamped bearing rings are driven to achieve synchronous end polishing. S3: Inner and outer side synchronous polishing stage. The electric push rod one 15 and the electric push rod two 16 arranged in a cross pattern, combined with the push plate one 14 and the cylinder four 23, respectively drive the inner side grinding disc 18 and the outer side grinding disc 8 to perform synchronous grinding on the inner and outer sides of the stacked bearing rings. Specifically, the electric push rod one 15 drives the rear-end clamp seat 17 to cooperate with the push plate one 14 to form a fixed clamping for axially limiting the stacked bearing rings. Then, under the co-rotation action of the rotating rollers 6 symmetrically arranged at the bottom, the multiple bearing rings are driven to rotate synchronously. Then, the outer side grinding disc 8 contacts the outer sides of the multiple bearing rings, and the inner side grinding disc 18 corresponds to the inner sides of the multiple bearing rings to complete the inner and outer side synchronous polishing. S4: In the blanking stage, when discharging, first, the second electric push rod 16 drives the inner grinding disc 18 to move out multiple bearing rings, and finally engages with the rear clamping seat 17. Subsequently, the first electric push rod 15 contracts, driving the second 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, change the rotation direction of one of the roller supports 6 so that the pair of roller supports 6 rotate in the same direction, and the discharging of multiple bearing rings can be quickly realized.

[0024] In summary, based on the polishing principle in the prior art, the improvement is mainly made on the limited position of polishing and grinding the motorcycle bearing ring workpiece 7. Specifically, the end face of the motorcycle bearing ring is first polished, and a two-way pre-tightening clamping action is provided for the motorcycle bearing ring along with active rotation, so that when the end face is polished, the synchronous polishing of the outer ring surface raceway and the complex chamfer area can also be completed; on this technical basis, the synchronous polishing of the inner and outer sides is continued, enabling the workpiece to complete the all-round polishing and grinding that fully adapts to the curved surface profile and avoids manual intervention, and avoiding uneven polishing caused by the geometric differences of the curved surfaces.

[0025] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited 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 component is installed on the alignment substrate (1), a feed box (4) is provided on a side of the alignment substrate (1) close to the feed vertical plate (2), and a pushing component for intermittent feeding of workpieces (7) is installed in the feed box (4); An end grinding disc (5) for receiving a workpiece (7) is installed at the output end of the execution rotation assembly, a locking hole (27) for one-way locking of the workpiece (7) is provided on the end grinding disc (5), and end grinding assemblies are provided on both sides of the end grinding disc (5) corresponding to the locking hole (27); The end grinding assembly comprises a front grinding ring (9) arranged on the feeding side of the locking hole (27) and a rear wedge grinding (11) arranged on the discharging side of the locking hole (27); a grinding assembly corresponding to the locking hole (27) at the bottom is mounted on the polishing base (3); The grinding assembly includes symmetrically arranged roller supports (6), a pair of outer grinding discs (8) are suspended above the middle of the roller supports (6), and an electric push rod 1 (15) and an electric push rod 2 (16) are cross-mounted on the polishing base (3). The output end of the electric push rod 1 (15) is mounted with a rear end clamping seat (17), and the output end of the electric push rod 2 (16) is mounted with an inner grinding disc (18) that passes through the rear end clamping seat (17).

2. The combined processing device for a motorcycle steering bearing race according to claim 1, wherein, The execution rotation assembly comprises a motor (24) arranged to slide transversely 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 processing device for a motorcycle steering bearing raceway according to claim 2, characterized in that, A cylinder three (21) is installed on the rear side of the alignment substrate (1), and the output end of the cylinder three (21) is connected to the mounting seat of the motor (24). When the cylinder three (21) is started, it drives the end grinding disc (5) to move horizontally.

4. A combined processing device for a motorcycle steering bearing race, according to claim 1, characterized in that, The pushing assembly includes a cylinder 1 (12) arranged on one side of the interior of the feed box (4), a partition (19) is installed in the middle of the feed box (4), the output end of the cylinder 1 (12) is connected to a push plate 2 (20) passing through the partition (19), and the feed box (4) is provided with a discharge port matching the locking hole (27) away from the cylinder 1 (12), and the inner ring side of the front end grinding ring (9) matches the discharge port.

5. A combined processing device for a motorcycle steering bearing race, characterized in that, A support rod (10) is installed above one side of the feed box (4) close to the front grinding ring (9), and the rear end wedge grinding (11) is connected to the support rod (10) and is arranged coaxially with the front grinding ring (9).

6. The combined processing device for a motorcycle steering bearing race according to claim 5, characterized in that, A second cylinder (13) is suspended in the middle of the lower side of the alignment substrate (1), and the output end of the second cylinder (13) is connected to a push plate (14) aligned with the locking hole (27) at the bottom, and the push plate (14) passes through the locking hole (27) and is aligned with the supporting gap of a pair of roller supports (6).

7. A combined processing device for a motorcycle steering bearing race, according to claim 1, characterized in that, A fixed plate (22) is installed at the upper end of the feed vertical plate (2) away from the feed side, and a cylinder four (23) is installed at the lower end of the fixed plate (22). The output end of the cylinder four (23) is connected to the outer grinding disc (8), and the lower side of the outer grinding disc (8) is in contact with the outer surfaces of several workpieces (7).

8. A combined processing device for a motorcycle steering bearing race, characterized in that, A rotating hinge assembly is provided at the bottom of the rod of the second electric push rod (16) corresponding to the polishing base (3) for the second electric push rod (16) to perform an inclined sliding movement following the first electric push rod (15).

9. A motorcycle steering bearing ring combined processing method, implemented by using a motorcycle steering bearing ring combined processing device according to any one of claims 1 to 8, characterized in that: Specifically, it includes an intermittent feeding stage, an end polishing stage, an inner and outer side synchronous polishing stage, and a blanking stage of the workpiece (7).

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