Hub grinding device

Abstract

A hub grinding device comprises a conveying belt mechanism used for conveying a hub, a positioning component used for containing the hub and a grinding device body installed on a six-axis robot. The conveying belt mechanism comprises a rack, a first roller conveying belt and a second roller conveying belt, wherein the first roller conveying belt and the second roller conveying belt are arranged on the rack side by side and arranged at an interval smaller than the outer size of a hub. The positioning component comprises a lifting mechanism, a bottom plate, four positioning mechanisms used for positioning the outer surface of the hub and a horizontal driving mechanism. The positioning component is located in the interval between the first roller conveying belt and the second roller conveying belt. The lifting mechanism is used for lifting the bottom plate, the bottom plate can descend to be lower than the first roller conveying belt and the second roller conveying belt, and the polished hub is conveyed by the conveying belt mechanism; positioning rods are distributed on the periphery of the bottom plate, and the horizontal driving mechanism drives the connecting rods to move so that the four positioning rods can relatively move in pairs. And the polished hub is directly conveyed by the transmission belt, so that the hub polishing device has the advantage of accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of wheel processing technology, and in particular to a wheel hub grinding device. Background Technology

[0002] The machining steps for wheel hubs are further divided into drilling, milling, and deburring. For companies that mass-produce wheel hubs, conveyor rollers are often used to transfer wheel hubs between different production lines or workstations. In the field of wheel hub deburring, existing technologies typically place the wheel hub separately on a grinding platform, where a clamp holds the wheel hub. For example, Chinese utility model patent application number CN202020622337.7, "An Assembled Deburring Device for Automobile Wheel Hubs," places the wheel hub flat. Chinese utility model patent application number CN202221094997.8, "A Deburring and Grinding Device for the Surface of Vehicle Wheel Rim Spoke Steel Blanks," places the wheel hub vertically.

[0003] Traditional grinding devices rarely integrate the wheel hub to be ground directly into the drive roller device, such as Figure 1 As shown, the integration challenge lies in positioning the hub on the conveyor rollers. Four positioning rods are located on the outer surface of the hub, each positioned within the gap between adjacent rollers. The positioning rods can only move along the width direction of the conveyor rollers. At each end of the conveyor roller's width direction, there is a linear drive mechanism located below the roller, and each pair of positioning rods is synchronously driven by one linear drive mechanism. On the one hand, the limited installation positions of the positioning rods result in a relatively close distance between the two positioning rods in the hub's conveying direction. On the other hand, because the hub's conveying direction is perpendicular to the movement direction of the positioning rods, such as... Figure 1 When the wheel hub displacement is misaligned, as shown by the dotted line, only the two positioning rods are effective, and these rods are prone to displacing the wheel hub. These two factors combined create a technical problem where the wheel hub's position needs to be manually pre-corrected before the positioning rods can be used to position it. Utility Model Content

[0004] The purpose of this invention is to provide a wheel grinding device that integrates the wheel hub to be ground directly onto the transmission belt, thus solving the technical problem of requiring manual intervention for wheel hub positioning.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wheel hub grinding device includes a conveyor belt mechanism for conveying wheel hubs, a positioning component for placing wheel hubs, and a grinding device mounted on a six-axis robot.

[0007] The conveyor belt mechanism includes a frame, a first roller conveyor belt and a second roller conveyor belt arranged side by side on the frame, wherein the first roller conveyor belt and the second roller conveyor belt are spaced apart and the distance between them is less than the outer dimension of the hub.

[0008] The positioning component includes a lifting mechanism, a base plate, four positioning rods, and a horizontal drive mechanism. The positioning component is located in the interval between the first roller conveyor belt and the second roller conveyor belt.

[0009] The lifting mechanism is used to lift the base plate, which can be lowered to below the first roller conveyor belt and the second roller conveyor belt. The polished wheel hub is conveyed by the conveyor belt mechanism.

[0010] The base plate has positioning rods distributed around its perimeter to position the outer surface of the hub. The positioning rods can move relative to the base plate along the conveying direction of the hub. A connecting rod is fixed between two positioning rods located in the same length direction of the base plate. The horizontal drive mechanism drives the connecting rod to move so that the four positioning rods move relative to each other in pairs.

[0011] Furthermore, the horizontal drive mechanism includes two cylinders respectively arranged at both ends of the base plate along its length, and a connecting rod is connected to the telescopic end of each cylinder.

[0012] Furthermore, the lifting mechanism includes a lifting cylinder, a lower cylinder and an upper cylinder that are slidably connected vertically, the bottom end of the upper cylinder extends into the lower cylinder, the lifting cylinder is mounted on the lower cylinder, the telescopic end of the lifting cylinder lifts and lowers the upper cylinder, and the base plate is fixed on the upper cylinder.

[0013] Furthermore, it also includes a flipping component for flipping the hub, the flipping component and the grinding device being located above each other on both sides of the conveyor belt mechanism in the width direction.

[0014] Furthermore, the flipping component includes a flipping base, a rotatable flipping platform rotatably connected to the flipping base, and a pair of hub clamps disposed on the flipping platform.

[0015] Furthermore, it also includes a photoelectric switch and a controller. The photoelectric switch senses that the hub is transported to a predetermined position by the conveyor belt mechanism, the controller controls the conveyor belt mechanism to stop moving, and the base plate raises the hub.

[0016] Furthermore, it also includes a guide plate to limit the position of the hub in the width direction of the conveyor belt mechanism. The guide plate and positioning components are arranged sequentially along the conveying direction of the hub.

[0017] The wheel hub grinding device provided by this utility model, as described above, has the following beneficial effects:

[0018] In this invention, four positioning rods move along the conveying direction of the wheel hub. Initially, the positioning rods are far apart from each other. When the wheel hub is driven between the four positioning rods, the base plate can be raised, and the base plate drives the four positioning rods to surround the wheel hub. At the same time, the horizontal drive mechanism drives the four positioning rods to abut against the wheel hub. Even if the wheel hub deviates in the conveying direction, the positioning rods will eventually abut against the outer surface of the wheel hub. In addition, the base plate and positioning rods of the positioning component can be located above the conveyor belt mechanism, making it easier to maintain and clean the burrs removed by grinding. This new invention allows the ground wheel hub to be transported directly by the transmission belt, offering the advantage of accurate positioning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a grinding device in the prior art;

[0021] Figure 2 This is a three-dimensional structural diagram of the wheel hub grinding device provided by this utility model;

[0022] Figure 3 This is a top view of the wheel hub grinding device provided by this utility model;

[0023] Figure 4 This is a schematic diagram of the positioning component provided by this utility model;

[0024] Figure 5 This is a schematic diagram of the structure during the grinding of the back of the wheel hub provided by this utility model.

[0025] Figure label:

[0026] Conveyor belt mechanism 1, frame 11, positioning component 2, lifting mechanism 21, lower cylinder 211, upper cylinder 212, base plate 22, cylinder 222, positioning rod 23, connecting rod 24, flipping component 3, flipping base 31, flipping platform 32, guide plate 4. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] A wheel hub grinding device includes a conveyor belt mechanism 1 for conveying wheel hubs, a positioning component 2 for placing wheel hubs, and a grinding device mounted on a six-axis robot.

[0029] The conveyor belt mechanism 1 includes a frame 11 and a first roller conveyor belt and a second roller conveyor belt arranged side-by-side on the frame 11. The first roller conveyor belt and the second roller conveyor belt are spaced apart, with the spacing being smaller than the outer dimension of the hub. Along the length of the conveyor belt mechanism 1, both ends of the hub are supported by the rollers of the first roller conveyor belt and the second roller conveyor belt, respectively. The first roller conveyor belt and the second roller conveyor belt move synchronously. The middle of the hub rests on the gap and is suspended in the air.

[0030] The conveyor belt mechanism 1 is prior art, and can be found in Chinese invention patent application number 201811649061.5 entitled "An Automatic Lathe for Aluminum Hub Base Surface".

[0031] The positioning component 2 includes a lifting mechanism 21, a base plate 22, four positioning rods 23 for positioning the outer surface of the wheel hub, and a horizontal drive mechanism. The positioning component 2 is located in the interval between the first roller conveyor belt and the second roller conveyor belt.

[0032] The lifting mechanism 21 is used to lift the base plate 22. The base plate 22 can be lowered to below the first roller conveyor belt and the second roller conveyor belt. At this time, the wheel hub is separated from the lifting base plate 22 and supported by the conveyor belt mechanism 1. The polished wheel hub is conveyed by the conveyor belt mechanism 1.

[0033] Positioning rods 23 are distributed around the four sides of the base plate 22, with four positioning rods 23 located at the four right angles of the rectangle. The base plate 22 is a rectangular plate, with its length direction arranged along the conveying direction of the hub. The width of the base plate 22 is smaller than the interval between the first roller conveyor belt and the second roller conveyor belt. The positioning rods 23 can move relative to the base plate 22 along the conveying direction of the hub. A connecting rod 24 is fixed between two positioning rods 23 located on the same length direction of the base plate 22, that is, two positioning rods on the same side of the length direction of the base plate 22 move synchronously. The horizontal drive mechanism drives the connecting rod 24 to move, so that the four positioning rods 23 move relative to each other in pairs.

[0034] Initially, the base plate 22 descends, and the top of the positioning rods 23 is lower than the bottom surface of the hub. Along the hub's conveying direction, the distance between the positioning rods is greater than the hub's distance. When the hub is fed in, it is symmetrically positioned between the first and second roller conveyor belts on the width direction of the conveyor belt mechanism 1. When the hub moves between the four positioning rods, the movement of the conveyor belt mechanism 1 stops, and the base plate 22 rises above the conveyor belt mechanism 1, causing the top of the positioning rods 23 to rise above the bottom surface of the hub. Simultaneously, the four positioning rods 23 move closer together in pairs until they abut against the outer surface of the hub. The positioning rods 23 act as interceptors for the hub. The position of the base plate 22 is adjusted as needed. After the grinding device finishes grinding the hub, the base plate 22 descends to leave the hub, and the hub falls onto the conveyor belt mechanism 1.

[0035] Optionally, the positioning rod 23 is a round rod.

[0036] Optionally, the positioning rod 23 is a round rod with a clamping wheel at the top.

[0037] Preferably, the horizontal drive mechanism includes two cylinders 222 respectively arranged at both ends of the base plate 22 along its length. Each cylinder 222 has a connecting rod 24 connected to its telescopic end. The length of the connecting rod 24 is along the width of the base plate, and both ends of the connecting rod 24 extend fixedly to two positioning rods 23. Alternatively, the connecting rod 24 can be Y-shaped, with its root connected to the telescopic end of the cylinder 222 and its two branches connected to the positioning rods 23 respectively.

[0038] Optionally, the positioning rod 23 is slidably connected to the base plate 22.

[0039] Among them, optional ones such as Figure 4 As shown, the base plate 22 has four through holes, and the positioning rod 23 is slidably fitted into each of the through holes.

[0040] Among them, optional ones such as Figure 5 As shown, a slide rail is provided on the side of the base plate 22, and the positioning rod 23 is fixedly connected to the slider on the slide rail.

[0041] Preferably, the lifting mechanism 21 includes a lifting cylinder, a lower cylinder 211 and an upper cylinder 212 that are slidably connected vertically. The bottom end of the upper cylinder 212 extends into the lower cylinder 211. The lifting cylinder is mounted on the lower cylinder, and the cylinder body of the lifting cylinder is fixedly connected to the lower cylinder 211. The telescopic end of the lifting cylinder lifts and lowers the upper cylinder 212, and the base plate 22 is fixed on the upper cylinder 212. The lifting cylinder may be located inside the lower cylinder 211.

[0042] In a preferred embodiment of the utility model, a flipping component 3 for flipping the wheel hub is also included. The flipping component 3 and the grinding device are respectively located above the two sides of the conveyor belt mechanism 1 in the width direction. Since some wheel hubs have valve holes on their backs and some have complex window shapes, these wheel hubs require some grinding work on their backs. The addition of the flipping component 3 can be used to flip the wheel hub. When flipping the wheel hub, the positioning rod moves away from the wheel hub. After the flipping component clamps the wheel hub, the base plate can first lower a certain distance to provide space for the wheel hub to flip. After the flipping component flips the wheel hub, the base plate rises again to support the wheel hub. The flipped wheel hub can be ground directly on the base plate or conveyed to other workstations for grinding.

[0043] Specifically, the flipping component 3 includes a flipping base 31, a rotatable flipping platform 32 rotatably connected to the flipping base 31, and a pair of hub clamps disposed on the flipping platform 32.

[0044] The flipping base 31 may also have a lifting function. The flipping component and hub clamp are prior art; see Chinese Utility Model Patent Application No. CN201820830758.1, "A Gripper for a Hub Handling Robot," and Chinese Utility Model Patent Application No. CN201822109801.8, "Wheel Hub Flipping Device." In a preferred embodiment of the utility model, a photoelectric switch and a controller are also included. The photoelectric switch senses that the hub has been transported to a predetermined position by the conveyor belt mechanism 1, and the controller stops the conveyor belt mechanism 1, causing the base plate 22 to lift the hub. This is for faster and more accurate control of the base plate 22 lifting. The controller is connected to the lifting mechanism 21.

[0045] In a preferred embodiment of the utility model, a guide plate 4 is further included to limit the position of the hub in the width direction of the conveyor belt mechanism 1. The guide plate 4 and the positioning component 2 are arranged sequentially along the conveying direction of the hub. The guide plate 4 may be a pair of inclined, oppositely arranged strip plates used to guide the hub to the middle position in the width direction of the conveyor belt mechanism 1.

[0046] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wheel hub grinding device, characterized in that, Includes a conveyor belt mechanism (1) for conveying wheel hubs, a positioning component (2) for placing wheel hubs, and a grinding device connected to a six-axis robot; The conveyor belt mechanism (1) includes a frame (11), a first roller conveyor belt and a second roller conveyor belt arranged side by side on the frame (11), wherein the first roller conveyor belt and the second roller conveyor belt are arranged at intervals and the interval is smaller than the outer dimension of the hub. The positioning component (2) includes a lifting mechanism (21), a base plate (22), four positioning rods (23), and a horizontal drive mechanism. The positioning component (2) is located in the interval between the first roller conveyor belt and the second roller conveyor belt. The lifting mechanism (21) is used to lift the base plate (22). The base plate (22) can be lowered to below the first roller conveyor belt and the second roller conveyor belt. The polished wheel hub is conveyed by the conveyor belt mechanism (1). The base plate (22) has positioning rods (23) distributed around its perimeter for positioning the outer surface of the hub. The positioning rods (23) can move relative to the base plate (22) along the conveying direction of the hub. A connecting rod (24) is fixed between two positioning rods (23) located in the same length direction of the base plate (22). The horizontal drive mechanism drives the connecting rods (24) to move so that the four positioning rods (23) move relative to each other in pairs.

2. The wheel hub grinding device according to claim 1, characterized in that, The horizontal drive mechanism includes two cylinders (222) respectively arranged at both ends of the base plate (22) in the length direction, and each cylinder (222) has a connecting rod (24) connected to its telescopic end.

3. The wheel hub grinding device according to claim 1, characterized in that, The lifting mechanism (21) includes a lifting cylinder, a lower cylinder (211) and an upper cylinder (212) that are slidably connected vertically. The bottom end of the upper cylinder (212) extends into the lower cylinder (211). The lifting cylinder is mounted on the lower cylinder (211). The telescopic end of the lifting cylinder lifts and lowers the upper cylinder (212). The base plate (22) is fixed on the upper cylinder (212).

4. The wheel hub grinding device according to claim 1, characterized in that, It also includes a flipping component (3) for flipping the hub, the flipping component (3) and the grinding device being located above the conveyor belt mechanism (1) on both sides in the width direction.

5. A wheel hub grinding device according to claim 4, characterized in that, The flipping component (3) includes a flipping base (31), a rotatable flipping platform (32) rotatably connected to the flipping base (31), and a pair of hub clamps disposed on the flipping platform (32).

6. The wheel hub grinding device according to claim 1, characterized in that, It also includes a photoelectric switch and a controller. The photoelectric switch senses that the hub is conveyed to a predetermined position by the conveyor belt mechanism (1), and the controller controls the conveyor belt mechanism (1) to stop moving and the base plate (22) to raise the hub.

7. The wheel hub grinding device according to claim 1, characterized in that, It also includes a guide plate (4) for limiting the position of the hub in the width direction of the conveyor belt mechanism (1), and the guide plate (4) and the positioning component (2) are arranged sequentially along the conveying direction of the hub.

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