Hub sleeve outer surface grinding machine

Abstract

The invention relates to the technical field of polishing, in particular to a hub sleeve outer surface grinding machine which comprises a base, a feeding and discharging mechanism, a positioning mechanism and a grinding mechanism are arranged on the base, and the feeding and discharging mechanism comprises a discharging assembly fixedly installed on the base and further comprises a feeding assembly fixedly installed at the top end of the discharging assembly. The buffering and limiting assembly is arranged on the feeding assembly; the positioning mechanism comprises a bearing assembly arranged at the tail of the feeding assembly and clamping assemblies arranged on the two sides of the bearing assembly. The problem that in the feeding process of existing hub grinding equipment, falling of a hub is not stable is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing, and more particularly to a hub sleeve outer surface grinding machine. Background Art

[0002] In wheelchair manufacturing and related industries, the hub is a key component of the wheel system, and the quality of its outer surface processing has a vital impact on the overall performance, running smoothness and service life of the wheelchair.

[0003] The wheelchair hub not only needs to bear the full weight of the wheelchair and the user, but also needs to maintain stable and reliable operation under complex and changing road conditions. Therefore, there are extremely high requirements for the smoothness, dimensional accuracy, and geometric tolerances of the hub's outer surface.

[0004] In the existing hub manufacturing process, external surface polishing is a crucial step. However, most hub polishing equipment currently available on the market suffers from significant deficiencies in the loading process, particularly during the process of lowering the hub into the positioning slot. Specifically, due to the lack of effective buffering and guiding mechanisms, when the hub freely drops from the conveyor or loading mechanism into the positioning slot, the hub often fails to accurately and stably settle into the slot, tilting, bouncing, or even popping out of the slot.

[0005] This unstable drop not only seriously affects the positioning accuracy of the hub before polishing, resulting in inaccurate subsequent polishing operations and reduced processing quality, but also can cause damage to the hub itself, such as surface scratches and dents, which in turn increases scrap rates and production costs. Furthermore, existing equipment lacks a flexible adjustment mechanism for hubs of varying sizes and shapes, making it difficult to ensure stable drop for hubs of varying specifications, further limiting the equipment's versatility and production efficiency.

[0006] In order to solve the above problems, a hub sleeve outer surface grinding machine is proposed. Summary of the Invention

[0007] (1) Technical problems solved

[0008] In response to the problems existing in the prior art, the present invention provides a hub sleeve outer surface grinder to solve the problem of unstable hub falling during the loading process of the existing hub grinding equipment mentioned in the background art.

[0009] (2) Technical solution

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: a hub sleeve outer surface grinding machine, comprising a base, on which are provided a loading and unloading mechanism, a positioning mechanism, and a grinding mechanism, wherein the loading and unloading mechanism includes a loading assembly fixedly mounted on the base, a loading assembly fixedly mounted on the top of the loading assembly, and a buffer limit assembly provided on the loading assembly;

[0011] The positioning mechanism includes a supporting component arranged at the tail of the feeding component, and clamping components arranged on both sides of the supporting component.

[0012] The present invention is further configured such that the loading assembly includes a unloading track and an electric push rod fixedly mounted above the unloading assembly by a bracket, the unloading track is provided with a slightly inclined hub temporary area and an unloading area inclined downward toward the supporting assembly, and a through hole for the electric push rod to pass through is provided on one side of the hub temporary area of ​​the unloading track.

[0013] The present invention is further configured such that the buffer limit assembly includes a buffer member rotatably mounted on the upper end of the tail portion of the unloading area, and an adjustment member provided on the upper end of the tail portion of the unloading area;

[0014] The buffer component includes a rotating shaft rotatably mounted on the upper end of the tail of the unloading area, a hard plate arranged on the rotating shaft, and a limiting rubber arranged on the tail of the hard plate.

[0015] The present invention is further configured as follows: the adjusting member includes a shaft sleeve, an adjusting spring, a limit block, a pull rope and an adjusting ring, the shaft sleeve is arranged at the upper end of the tail of the blanking area and is coaxial with the rotating shaft, and the adjusting ring is sleeved on the outside of the shaft sleeve, the shaft sleeve is provided with a rotating notch at one end close to the blanking area, and an adjusting spring and a limit block are provided in the rotating notch, two ends of the adjusting spring respectively contact with the limit block and one end of the rotating notch, two ends of the rotating notch are provided with communicating arc-shaped wire grooves, and the pull rope passes through the arc-shaped wire groove, the lower end of the inner wall of the adjusting ring is provided with a slider matching the rotating notch, and two ends of the pull rope are respectively fixedly connected to the limit block and the slider;

[0016] The buffer component further includes a stopper provided at one end of the circumferential side wall of the rotating shaft, and the stopper is slidably matched with the rotating notch.

[0017] The present invention is further configured such that a spring groove is provided on the inner wall of the adjusting ring, and an ejection spring and a clamping rod are provided in the spring groove;

[0018] A ring array of clamping grooves is provided on one end of the circumferential outer wall of the shaft sleeve away from the rotating notch, and the clamping grooves are clamped with the clamping rods.

[0019] The present invention is further configured such that a partition and a return spring are provided inside the shaft sleeve, and one end of the return spring is fixedly connected to the partition;

[0020] A pressing plate is movably provided inside the adjusting ring, and the pressing plate is fixedly connected to one end of the return spring, and an unlocking rod is provided in a circular array at one end of the pressing plate close to the return spring;

[0021] The card slot is a strip-shaped slot, and the card slot and the unlocking rod are correspondingly plugged in.

[0022] The present invention is further configured such that the supporting assembly includes a pushing cylinder provided on a base, a supporting platform provided on a top end of the pushing cylinder, and a positioning slot provided on the supporting platform;

[0023] The positioning groove is a V-shaped groove consisting of a vertical surface and an inclined surface.

[0024] The present invention is further configured such that the blanking assembly includes a blanking platform fixedly mounted on a base via a bracket, and a stripping notch provided on the blanking platform;

[0025] The top surface of the unloading platform is inclined, and the unloading notch is at a high end.

[0026] The present invention is further configured such that the clamping assembly comprises a first clamping member and a second clamping member provided on both sides of the supporting platform;

[0027] The first clamping member includes a first motor fixed by a bracket, an electric telescopic rod provided at an output end of the first motor, and a first clamping block provided on the electric telescopic rod;

[0028] The second clamping member includes a second motor fixed by a bracket and a second clamping block arranged at the output end of the second motor.

[0029] The present invention is further configured such that the grinding mechanism includes a lifting platform arranged on the base, a U-shaped frame arranged on the lifting platform, a grinding disc, a dust cover and a drive motor arranged on the U-shaped frame, a support rod arranged on the dust cover, and a rotating roller arranged at one end of the support rod away from the dust cover.

[0030] (3) Beneficial effects

[0031] Compared with the prior art, the present invention provides a hub sleeve outer surface grinding machine, which has the following beneficial effects:

[0032] 1. The present invention utilizes the design of a buffering and limiting assembly to effectively buffer and decelerate the hub during its falling process, ensuring that it stably falls into the positioning groove of the supporting assembly. At the same time, the adjusting member can adjust the initial position of the buffer member according to the diameter of the hub to be polished, ensuring that hubs of different diameters can stably reach the specified position after buffering, thereby improving the versatility and processing stability of the equipment.

[0033] 2. The positioning groove on the supporting assembly in the present invention adopts a V-shaped groove design consisting of a vertical surface and an inclined surface. When the hub falls into the positioning groove, it first hits the inclined surface and moves upward along it. After being blocked by the limiting rubber, it slides along the inclined surface and finally hits the vertical surface to achieve rapid and stable positioning. This design can stably adapt to hubs of various diameters, avoids the problems of reciprocating rolling of the hub and long stabilization time caused by conventional V-shaped grooves, and improves processing efficiency.

[0034] 3. In the present invention, the top surface of the unloading platform is inclined and the unloading notch is the high end, so that the pushing cylinder contracts and drives the hub in the positioning groove to move downward. After the supporting platform passes through the unloading notch, the hub is intercepted because its length is greater than the unloading notch, and is rolled to a low position under the action of the inclined surface at the top of the unloading platform, thereby realizing automatic unloading and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic diagram of the overall structure of a hub sleeve outer surface grinding machine.

[0036] Figure 2 It is a structural diagram of the loading and unloading mechanism.

[0037] Figure 3 It is a structural diagram of the supporting component and the clamping component.

[0038] Figure 4 It is a structural diagram of the interference between the rotating roller and the buffer member.

[0039] Figure 5 Schematic diagram of the structure of the buffer.

[0040] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the adjusting part.

[0041] Figure 7 Schematic diagram of the explosion structure of the regulating part.

[0042] Figure 8 It is a schematic diagram of the structure of the dust cover, support rod and rotating roller.

[0043] In the figure: 1. Base; 2. Loading and unloading mechanism; 3. Positioning mechanism; 4. Grinding mechanism; 401. Lifting platform; 402. U-shaped frame; 403. Grinding disc; 404. Dust cover; 405. Driving motor; 406. Support rod; 407. Rotating roller; 5. Unloading assembly; 501. Unloading platform; 502. Stripping notch; 6. Loading assembly; 601. Unloading track; 602. Electric push rod; 603. Hub temporary storage area; 604. Unloading area; 605. Through hole; 7. Buffer limit assembly; 8. Support assembly; 801. Push cylinder; 802. Support platform; 803. Positioning slot; 9. Clamping assembly; 901. First motor; 902. Electric stretcher Retractable rod; 903, first clamping block; 904, second motor; 905, second clamping block; 10, buffer member; 1001, rotating shaft; 1002, hard plate; 1003, limiting rubber; 1004, stop block; 11, adjusting member; 1101, bushing; 1102, adjusting spring; 1103, limiting block; 1104, pull rope; 1105, adjusting ring; 1106, rotating notch; 1107, arc-shaped wire groove; 1108, slider; 1109, spring groove; 1110, ejection spring; 1111, clamping rod; 1112, clamping slot; 1113, partition; 1114, reset spring; 1115, pressing plate; 1116, unlocking rod. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0047] For examples, see Figure 1 - Figure 8 A hub sleeve outer surface grinding machine includes a base 1, on which are provided a loading and unloading mechanism 2, a positioning mechanism 3, and a grinding mechanism 4. The loading and unloading mechanism 2 includes a loading assembly 5 fixedly mounted on the base 1, a loading assembly 6 fixedly mounted on the top of the loading assembly 5, and a buffer limit assembly 7 provided on the loading assembly 6.

[0048] The positioning mechanism 3 includes a supporting assembly 8 disposed at the rear of the loading assembly 6 , and clamping assemblies 9 disposed on both sides of the supporting assembly 8 .

[0049] The loading assembly 6 includes a loading track 601 and an electric push rod 602 fixedly installed above the loading assembly 5 through a bracket. The loading track 601 is provided with a slightly inclined hub temporary area 603 and a loading area 604 inclined downward toward the supporting assembly 8. A through hole 605 for the electric push rod 602 to pass through is provided on one side of the hub temporary area 603 of the loading track 601.

[0050] One side of the hub temporary area 603 is set with an opening for connecting the feeder so that the polished hubs can enter in sequence. The slightly tilted direction of the hub temporary area 603 is opposite to the tilt of the unloading area 604, so as to prevent the hub from rolling into the unloading area 604 due to the vibration of the equipment operation when the hub is in the hub temporary area 603. When the electric push rod 602 is in the retracted state, it is located outside the hub temporary area 603. When loading is required, the electric push rod 602 extends through the hole 605 to push the hub temporary area 603 out, so that the hub enters the unloading area 604, and then rolls and falls to the supporting assembly 8. Among them, the unloading area 604 is set in a U shape, which can limit the unloading of the hub. When the hub rolls and falls in the unloading area 604, the speed will become faster and faster. When it reaches the tail of the unloading area 604, it is buffered by the buffer limit assembly 7 to avoid high-speed falling, so that the hub is separated from the supporting assembly 8.

[0051] The buffer limit assembly 7 includes a buffer member 10 rotatably mounted on the upper end of the tail portion of the unloading area 604 , and an adjustment member 11 disposed on the upper end of the tail portion of the unloading area 604 ;

[0052] The buffer member 10 includes a rotating shaft 1001 rotatably mounted on the upper end of the tail portion of the unloading area 604 , a hard plate 1002 disposed on the rotating shaft 1001 , and a limiting rubber 1003 disposed at the tail portion of the hard plate 1002 .

[0053] The buffer member 10 is made of lightweight material to prevent the falling hub from failing to reach the set position of the supporting assembly 8. In the initial state, the buffer member 10 is in a falling state under the action of gravity, and its specific falling posture changes with the position adjusted by the adjusting member 11.

[0054] The adjustment of the adjusting member 11 is adjusted according to the diameter of the hub to be polished. When the hub passes through the buffer 10, it will push the buffer 10 to rotate, thereby buffering the deceleration and finally reaching the specified position of the supporting assembly 8. When the hub reaches the specified position, the angle at which the hub with a small diameter pushes the buffer 10 and the hub with a large diameter push the buffer 10 to rotate must be different. When the hub reaches the specified position, the angle of the buffer 10 pushed by the hub with a small diameter is smaller, that is, the buffer 10 has a smaller buffering and braking effect on the hub, while the angle at which the hub with a large diameter pushes the buffer 10 is larger, that is, the buffer 10 has a larger buffering and braking effect on the hub. If the initial position of the buffer 10 is fixed, then if the small diameter is used as the standard, the small diameter hub will reach the specified point after being braked and buffered by the buffer 10 when it falls. Then, when the large diameter hub falls, the large diameter hub will not be able to reach the specified position due to the greater braking effect of the buffer 10, thereby affecting the subsequent clamping and positioning of the clamping assembly 9, thereby affecting the grinding and polishing.

[0055] The adjusting member 11 includes a sleeve 1101, an adjusting spring 1102, a limit block 1103, a pull rope 1104 and an adjusting ring 1105. The sleeve 1101 is arranged at the upper end of the tail of the blanking area 604 and is coaxial with the rotating shaft 1001. The adjusting ring 1105 is sleeved on the outside of the sleeve 1101. A rotating slot 1106 is opened at one end of the sleeve 1101 near the blanking area 604, and the adjusting spring 1102 and the limit block 1103 are arranged in the rotating slot 1106. The two ends of the adjustment spring 1102 are respectively in contact with the limit block 1103 and one end of the rotating slot 1106. The two ends of the rotating slot 1106 are connected with an arc-shaped wire groove 1107, and the pull rope 1104 passes through the arc-shaped wire groove 1107. The lower end of the inner wall of the adjustment ring 1105 is provided with a slider 1108 matching the rotating slot 1106, and the two ends of the pull rope 1104 are respectively fixedly connected to the limit block 1103 and the slider 1108;

[0056] The buffer member 10 further includes a stopper 1004 disposed at one end of the circumferential side wall of the rotating shaft 1001 , and the stopper 1004 is slidably matched with the rotating slot 1106 .

[0057] The adjusting spring 1102 and the limit block 1103 are confined in the rotating slot 1106 by the outer wall of the rotating shaft 1001 and the inner wall of the adjusting ring 1105. The stop block 1004 is located between the limit block 1103 and the slider 1108. The buffer 10 falls under the action of gravity, so that the stop block 1004 rotates with the rotating shaft 1001 in the rotating slot 1106 until it fits into the limit block 1103. The initial position of the buffer 10 is changed according to the grinding of hubs of different diameters to ensure that after being buffered by the buffer 10, it can stably reach the stable position of the supporting assembly 8.

[0058] When adjusting the adjusting member 11, by rotating the adjusting ring 1105, the adjusting ring 1105 drives the slider 1108 to move in the rotating slot 1106, and when it moves, it pulls the pull rope 1104, and the pull rope 1104 drives the limit block 1103 to move, thereby compressing the adjusting spring 1102, thereby realizing the adjustment of the position of the limit block 1103. By adjusting the position of the limit block 1103, the initial falling posture of the buffer member 10 is realized to ensure that the hub can reach the specified position of the supporting assembly 8.

[0059] A spring groove 1109 is formed on the inner wall of the adjustment ring 1105, and an ejection spring 1110 and a clamping rod 1111 are arranged in the spring groove 1109;

[0060] An annular array of latching grooves 1112 is formed on one end of the outer circumferential wall of the shaft sleeve 1101 away from the rotating notch 1106 , and the latching grooves 1112 are latched with the latching rod 1111 .

[0061] The adjusting ring 1105 is rotated and adjusted according to the model of the hub to be polished to adjust the initial posture of the buffer 10. After the adjustment is completed, the position of the adjusting ring 1105 is locked by inserting the clamping rod 1111 into the clamping groove 1112 on the outer wall of the sleeve 1101.

[0062] A partition plate 1113 and a return spring 1114 are provided inside the shaft sleeve 1101, and one end of the return spring 1114 is fixedly connected to the partition plate 1113;

[0063] A pressing plate 1115 is movably provided inside the adjusting ring 1105, and the pressing plate 1115 is fixedly connected to one end of the return spring 1114. An unlocking rod 1116 is provided in a circular array at one end of the pressing plate 1115 close to the return spring 1114.

[0064] The card slot 1112 is a strip-shaped slot, and the card slot 1112 and the unlocking rod 1116 are correspondingly plugged in.

[0065] Under the elastic force of the return spring 1114, the pressing plate 1115 and one end of the adjusting ring 1105 are flush, and the end of the unlocking rod 1116 is located at the upper end of the card slot 1112, which does not affect the card connection between the card rod 1111 and the card slot 1112. The end of the unlocking rod 1116 away from the pressing plate 1115 is provided with a wedge surface matching the card rod 1111. When grinding the hub with the largest diameter, the pressing plate 1115 is pressed to make the unlocking rod 1116 move to the bottom of the card slot 1112, thereby pushing the card rod 1111 through the wedge surface, so that the card rod 1111 shrinks into the spring groove 1109 and squeezes out the spring 1110. After the unlocking rod 1116 is fully inserted into the slot 1112, the outer surface of the unlocking rod 1116 fills the vacancy in the slot 1112, realizing the annular surface of the outer surface of the sleeve 1101. At this time, under the action of the adjusting spring 1102, the limit block 1103 is pushed to move, thereby pulling the pull rope 1104. The movement of the pull rope 1104 drives the adjusting ring 1105 to rotate and reset, so that the posture of the buffer component 10 can be reset when the maximum diameter hub is polished, thereby improving the adjustment efficiency.

[0066] The supporting assembly 8 includes a pushing cylinder 801 disposed on the base 1, a supporting platform 802 disposed on the top of the pushing cylinder 801, and a positioning groove 803 provided on the supporting platform 802;

[0067] The positioning groove 803 is a V-shaped groove consisting of a vertical surface and an inclined surface.

[0068] The hub rolls downward through the unloading track 601, is decelerated by the buffer 10, and falls into the positioning groove 803 on the support platform 802, wherein the positioning groove 803 is designed with a V-groove, which can stably adapt to hubs of various diameters. At the same time, the V-groove is composed of an inclined surface and a vertical surface, wherein the vertical surface is close to the unloading track 601, and the inclined surface is away from the unloading track 601. When the hub falls into the positioning groove 803, it first resists the inclined surface and moves up along the inclined surface by its inertia. Under the action of the limiting rubber 1003, the hub resists and finally slides back along the inclined surface. When it slides to the bottom, the outer wall of the hub will hit the vertical surface of the V-groove, thereby forming a hard resistance, so that the hub can quickly stabilize in the positioning groove 803.

[0069] If conventional V-grooves are used, the hub will roll back and forth after returning to its original position, resulting in a long time for it to stabilize, which in turn affects processing efficiency.

[0070] The blanking assembly 5 includes a blanking platform 501 fixed on the base by a bracket, and a stripping notch 502 provided on the blanking platform 501;

[0071] The top surface of the unloading platform 501 is inclined, and the unloading notch 502 is at the high end.

[0072] The shedding slot is located below the supporting platform 802. When the cylinder 801 contracts, it drives the hub in the positioning slot 803 to move downward. After the supporting platform 802 passes through the stripping slot 502, the stripping slot 502 intercepts the hub because the length of the hub is greater than that of the stripping slot 502. The intercepted hub is tilted at a high position at the top of the unloading platform 501, and under the action of gravity, it rolls to a low position for unloading. At this time, a storage basket can be placed at the low end of the unloading platform 501.

[0073] The clamping assembly 9 includes a first clamping member and a second clamping member provided on both sides of the supporting platform 802;

[0074] The first clamping member includes a first motor 901 fixed by a bracket, an electric telescopic rod 902 provided at the output end of the first motor 901, and a first clamping block 903 provided on the electric telescopic rod 902;

[0075] The second clamping member includes a second motor 904 fixed by a bracket, and a second clamping block 905 provided at the output end of the second motor 904 .

[0076] The first clamping block 903 can be adjusted along with the electric telescopic rod 902, and the position of the second clamping block 905 is fixed. The initial positions of the first clamping block 903 and the second clamping block 905 are located on both sides of the unloading track 601, giving the falling hub a certain offset space. After the hub falls and reaches the positioning groove 803, the electric telescopic rod 902 extends, and pushes the hub toward the second clamping block 905 through the first clamping block 903, and then starts the first motor 901 and the second motor 904 to drive the clamped hub to rotate and the grinding mechanism 4 to perform grinding and polishing.

[0077] The grinding mechanism 4 includes a lifting platform 401 arranged on the base 1, a U-shaped frame 402 arranged on the lifting platform 401, a grinding disc 403 arranged on the U-shaped frame 402, a dust cover 404 and a drive motor 405, a support rod 406 arranged on the dust cover 404, and a rotating roller 407 arranged at one end of the support rod 406 away from the dust cover 404.

[0078] In the initial state, the grinding disc 403 is in a high position, that is, when the hub falls into the positioning groove 803, the grinding disc 403 is located above the hub, and the rotating roller 407 on the support rod 406 is located above the hard plate 1002. It should be noted that the maximum rotation of the buffer 10 when pushed by the falling hub is determined by the position of the rotating roller 407 to avoid excessive distance between the limit rubber 1003 and the end point of the inclined surface of the positioning groove 803, which may cause the small diameter hub to fall.

[0079] Furthermore, after the hub falls into the positioning groove 803, the clamping assembly 9 clamps and fixes the hub, and then pushes the cylinder 801 to contract, so that the support platform 802 moves downward. At this time, the grinding disc 403 and the dust cover 404 are driven by the lifting platform 401, and the dust cover 404 moves downward, driving the support rod 406 to move downward, so that the rotating roller 407 contacts the hard plate 1002, and then pushes the buffer 10 to rotate, so that the limiting rubber 1003 is deformed and rotates from the top of the hub to the side of the hub, thereby not affecting the grinding and polishing operation of the hub by the grinding disc 403. At this time, start the drive motor 405, the first motor 901 and the second motor 904 to achieve grinding.

[0080] Working principle:

[0081] First, in the loading and unloading mechanism 2, the loading assembly 6 fixedly mounted on the top of the unloading assembly 5 plays a role. The unloading track 601 of the loading assembly 6 is provided with a slightly inclined hub temporary area 603 and a unloading area 604 tilted downward toward the supporting assembly 8. One side of the hub temporary area 603 is connected to the feeder. When the electric push rod 602 is retracted, it is located outside the hub temporary area 603. When loading, the electric push rod 602 extends through the hole 605, pushes the hub out of the hub temporary area 603, and makes it enter the unloading area 604 and rolls down to the supporting assembly 8. At component 8, during this process, the buffer limit component 7 arranged on the loading component 6 buffers and slows down the falling hub, and the adjusting component 11 can adjust the initial position of the buffer component 10 according to the diameter of the hub to be polished. By rotating the adjusting ring 1105 to drive the slider 1108 to move, pulling the pull rope 1104 to drive the limit block 1103 to move the compression adjusting spring 1102, the initial falling posture of the buffer component 10 is changed, and when the hub passes through the buffer component 10, it is pushed to rotate to buffer and slow down, and finally reaches the specified position of the supporting component 8 stably.

[0082] Then, the positioning mechanism 3 starts to work, and the supporting assembly 8 arranged at the tail of the feeding assembly 6 pushes the cylinder 801 to drive the positioning groove 803 on the top supporting platform 802 to receive the hub. The positioning groove 803 adopts a V-shaped groove design consisting of a vertical surface and an inclined surface. When the hub falls into the positioning groove 803, it first hits the inclined surface, moves up along the inclined surface, and is resisted by the limiting rubber 1003, and then slides down along the inclined surface to the bottom and hits the vertical surface, achieving fast and stable positioning. Subsequently, the clamping assemblies 9 arranged on both sides of the supporting assembly 8 are actuated, and the first motor 901 of the first clamping member drives the electric telescopic rod 902 to extend, pushing the first clamping block 903 to push the hub toward the second clamping block 905 fixed in position and clamp it.

[0083] Finally, the grinding mechanism 4 performs the grinding operation. In the initial state, the grinding disc 403 is in a high position, and the rotating roller 407 on the support rod 406 is above the hard plate 1002. After the hub is clamped and fixed, the cylinder 801 is pushed to contract to move the supporting platform 802 downward, and the hub is separated from the supporting platform 802. At this time, the lifting platform 401 drives the grinding disc 403 and the dust cover 404 to move downward, and the support rod 406 on the dust cover 404 drives the rotating roller 407 to resist the hard plate 1002, pushing the buffer 10 to rotate to deform the limiting rubber 1003 and rotate it from the top of the hub to one side without affecting the grinding operation. Then the drive motor 405 is started to drive the grinding disc 403 to rotate. At the same time, the first motor 901 and the second motor 904 drive the clamped hub to rotate to achieve grinding and polishing of the outer surface of the hub.

[0084] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hub shell outer surface grinding machine, comprising a base (1), wherein the base (1) is provided with a loading and unloading mechanism (2), a positioning mechanism (3) and a grinding mechanism (4), and wherein: The loading and unloading mechanism (2) comprises a loading assembly (5) fixedly mounted on the base (1), a loading assembly (6) fixedly mounted on the top of the loading assembly (5), and a buffering and limiting assembly (7) arranged on the loading assembly (6); The positioning mechanism (3) comprises a supporting assembly (8) arranged at the tail of the feeding assembly (6), and clamping assemblies (9) arranged on both sides of the supporting assembly (8).

2. The hub sleeve outer surface grinding machine according to claim 1, characterized in that: The loading assembly (6) comprises a loading track (601) and an electric push rod (602) fixedly mounted above the loading assembly (5) via a bracket. The loading track (601) is provided with a slightly inclined hub temporary area (603) and a loading area (604) inclined downwardly toward the supporting assembly (8). A through hole (605) for the electric push rod (602) to pass through is provided on one side of the hub temporary area (603) of the loading track (601).

3. The hub sleeve outer surface grinding machine according to claim 2, characterized in that: The buffer limit assembly (7) includes a buffer member (10) rotatably mounted on the upper end of the tail portion of the unloading area (604), and an adjustment member (11) disposed on the upper end of the tail portion of the unloading area (604); The buffer member (10) includes a rotating shaft (1001) rotatably mounted on the upper end of the tail of the unloading area (604), a hard plate (1002) arranged on the rotating shaft (1001), and a limiting rubber (1003) arranged at the tail of the hard plate (1002).

4. The hub sleeve outer surface grinding machine according to claim 3, characterized in that: The adjusting member (11) comprises a shaft sleeve (1101), an adjusting spring (1102), a stop block (1103), a pull rope (1104) and an adjusting ring (1105), wherein the shaft sleeve (1101) is arranged at the upper end of the tail of the unloading area (604) and is coaxial with the rotating shaft (1001), and the adjusting ring (1105) is sleeved on the outside of the shaft sleeve (1101), and a rotating notch (1106) is provided at one end of the shaft sleeve (1101) close to the unloading area (604), and an adjusting spring (1102) is arranged in the rotating notch (1106). 02) and a limit block (1103), the two ends of the adjustment spring (1102) respectively contact the limit block (1103) and one end of the rotating slot (1106), the two ends of the rotating slot (1106) are provided with a connected arc-shaped line groove (1107), and the pull rope (1104) passes through the arc-shaped line groove (1107), the lower end of the inner wall of the adjustment ring (1105) is provided with a slider (1108) matching the rotating slot (1106), and the two ends of the pull rope (1104) are respectively fixedly connected to the limit block (1103) and the slider (1108); The buffer member (10) further comprises a stopper (1004) arranged at one end of the circumferential side wall of the rotating shaft (1001), and the stopper (1004) and the rotating slot (1106) are slidably matched.

5. The hub sleeve outer surface grinding machine according to claim 4, characterized in that: The inner wall of the adjusting ring (1105) is provided with a spring groove (1109), and an ejection spring (1110) and a clamping rod (1111) are provided in the spring groove (1109); A circular array of clamping grooves (1112) is provided on one end of the circumferential outer wall of the shaft sleeve (1101) away from the rotating notch (1106), and the clamping grooves (1112) are clamped to the clamping rod (1111).

6. The hub sleeve outer surface grinding machine according to claim 5, characterized in that: A partition plate (1113) and a return spring (1114) are provided inside the shaft sleeve (1101), and one end of the return spring (1114) is fixedly connected to the partition plate (1113); A pressing plate (1115) is movably provided inside the adjusting ring (1105), and the pressing plate (1115) is fixedly connected to one end of the return spring (1114), and an unlocking rod (1116) is provided in a circular array at one end of the pressing plate (1115) close to the return spring (1114); The card slot (1112) is a strip-shaped slot, and the card slot (1112) and the unlocking rod (1116) are correspondingly plugged in.

7. The hub sleeve outer surface grinding machine according to claim 6, characterized in that: The supporting assembly (8) includes a pushing cylinder (801) arranged on the base (1), a supporting platform (802) arranged on the top of the pushing cylinder (801), and a positioning groove (803) provided on the supporting platform (802); The positioning groove (803) is a V-shaped groove consisting of a vertical surface and an inclined surface.

8. The hub sleeve outer surface grinding machine according to claim 7, characterized in that: The blanking assembly (5) comprises a blanking platform (501) fixedly mounted on a base via a bracket, and a stripping notch (502) provided on the blanking platform (501); The top surface of the unloading platform (501) is inclined, and the unloading notch (502) is at a high end.

9. The hub sleeve outer surface grinding machine according to claim 8, characterized in that: The clamping assembly (9) comprises a first clamping member and a second clamping member arranged on both sides of the supporting platform (802); The first clamping member includes a first motor (901) fixed by a bracket, an electric telescopic rod (902) arranged at the output end of the first motor (901), and a first clamping block (903) arranged on the electric telescopic rod (902); The second clamping member comprises a second motor (904) fixed by a bracket, and a second clamping block (905) arranged at the output end of the second motor (904).

10. The hub sleeve outer surface grinding machine according to claim 9, characterized in that: The grinding mechanism (4) comprises a lifting platform (401) arranged on the base (1), a U-shaped frame (402) arranged on the lifting platform (401), a grinding disc (403) arranged on the U-shaped frame (402), a dust cover (404) and a driving motor (405), a support rod (406) arranged on the dust cover (404), and a rotating roller (407) arranged at one end of the support rod (406) away from the dust cover (404).

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