A device for grinding the wheel hubs of electric tricycles

Abstract

This invention relates to the field of electric tricycle parts manufacturing technology, and discloses a wheel hub grinding device for electric tricycles. The device includes a worktable, with a wheel hub positioning component, an adjustable grinding mechanism, and a grinding controller mounted on the upper surface of the worktable. The adjustable grinding mechanism includes a hydraulic cylinder and a lifting plate mounted on the output end of the hydraulic cylinder. A cylinder and a movable plate connected to the output end of the cylinder are mounted on the upper end of the lifting plate. A grinding disc structure and an adjustment component for adjusting the grinding angle are provided on the other side of the movable plate. The adjustment component includes a first motor mounted on the movable plate. This invention has the following advantages and effects: it can achieve automatic clamping and positioning of the wheel hub and has the ability to automatically adjust the grinding angle, promoting the development of electric tricycle manufacturing towards intelligence and flexibility.

Description

Technical Field

[0001] This invention relates to the field of electric tricycle parts manufacturing technology, and in particular to a device for grinding wheel hubs of electric tricycles. Background Technology

[0002] In the electric tricycle manufacturing industry, the wheel hub is a key component, and its surface quality directly affects the overall performance and safety of the vehicle. Traditional wheel hub grinding processes rely primarily on manual operation, which has significant limitations: manual clamping of the wheel hub with jigs and hand-held tools for grinding is not only inefficient but also makes it difficult to guarantee consistent processing precision. Due to the diverse sizes of wheel hubs, manual positioning often results in insecure clamping, leading to misalignment during grinding, uneven surface finish, excessive wear, or even scrapping of the workpiece. Furthermore, manual grinding requires highly skilled workers, involves high labor intensity, and long-term operation can easily lead to occupational health problems. It also fails to meet the demands of modern manufacturing for efficient and automated production.

[0003] While some existing automated grinding devices can improve efficiency, they generally lack flexible design. For example, a fixed-angle grinding disc cannot adapt to the complex curved surface of the wheel hub, resulting in insufficient treatment of edges or corners, requiring multiple rework processes. Although a few devices support size adjustment, their clamping mechanisms are complex, and switching between different wheel hub models is time-consuming, affecting the continuity of the production line. These shortcomings limit the application of automated equipment in small-batch, multi-variety production scenarios and cannot meet the electric tricycle industry's requirements for rapid model changeover and high-quality surfaces. Therefore, it is necessary to propose a wheel hub grinding device for electric tricycles to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a wheel hub grinding device for electric tricycles, which can automatically clamp and position the wheel hub and has the ability to automatically adjust the grinding angle, thereby promoting the development of electric tricycle manufacturing towards intelligence and flexibility.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a wheel hub grinding device for an electric tricycle, comprising a worktable, a wheel hub positioning component, an adjustable grinding mechanism, and a grinding controller provided on the upper surface of the worktable, the adjustable grinding mechanism comprising a hydraulic cylinder and a lifting plate installed at the output end of the hydraulic cylinder, a cylinder and a movable plate connected to the output end of the cylinder being installed on the upper end of the lifting plate, a grinding disc structure and an adjustment component for adjusting its grinding angle being provided on the other side of the movable plate, the adjustment component comprising a first motor installed on the movable plate, a rotating bracket being installed at the output end of the first motor, a U-shaped frame being rotatably connected to the rotating bracket, and the end of the U-shaped frame being connected to the grinding disc structure.

[0006] By adopting the above technical solution, the operator first inputs the size specifications of the wheel hub into the grinding controller, places the wheel hub on the worktable, and clamps and positions it using the wheel hub positioning component. Then, the height of the grinding disc structure is adjusted by the hydraulic cylinder, and the front and rear position of the grinding disc structure is controlled by the pneumatic cylinder. After approaching the wheel hub, the grinding disc structure can grind its surface. During the grinding process, the first motor drives the rotating bracket to rotate, and the U-shaped frame drives the grinding disc structure to rotate longitudinally, which can adjust its longitudinal grinding angle and increase its grinding range.

[0007] A further feature of the present invention is that the grinding disc structure includes a drive motor fixed to the end face of the U-shaped frame, and a grinding disc is installed on the output end of the drive motor.

[0008] By adopting the above technical solution, the grinding disc is rotated by the drive motor, and when the grinding disc gets close to the wheel hub, it is ground.

[0009] A further provision of the present invention is that the adjusting component further includes a second motor mounted on a movable plate, the output end of the second motor is equipped with a worm gear rotatably connected to the rotating bracket, and the inner side of the rotating bracket is rotatably provided with a worm wheel adapted to the worm gear.

[0010] By adopting the above technical solution, the second motor drives the worm gear to rotate, which in turn drives the worm wheel and the U-shaped frame to rotate, thereby allowing the grinding disc structure to adjust its angle laterally. Combined with the drive of the first motor, the grinding angle can be flexibly adjusted.

[0011] A further feature of the present invention is that a rotating shaft is fixedly mounted on the worm gear and is fixedly connected to the U-shaped frame through the rotating shaft.

[0012] By adopting the above technical solution, when the worm gear rotates, the U-shaped frame can be driven to rotate by the rotating shaft, thereby adjusting the lateral angle of the end grinding disc structure.

[0013] A further provision of the present invention is that: the upper end of the lifting plate is fixedly equipped with two guide rails that are slidably adapted to the bottom of the moving plate, and the top of the workbench is fixedly equipped with a support column that is slidably adapted to the lifting plate.

[0014] By adopting the above technical solution, the forward and backward sliding of the moving plate is made more stable. When the lifting plate moves up and down, it is guided by the support column, making the overall structure lift more smoothly.

[0015] A further embodiment of the present invention is that the hub positioning component includes a control motor installed inside the workbench, a rotating rod is installed at the output end of the control motor, a positioning platform is installed at the other end of the rotating rod, and a four-sided locking component is provided on the positioning platform.

[0016] By adopting the above technical solution, after the wheel hub is placed on the positioning platform, it is locked by the four-sided locking components. During the grinding process, the positioning platform can be rotated by the control motor and the rotating rod, thereby grinding the entire surface of the roller.

[0017] A further feature of the present invention is that the four-sided locking component includes four fixed frames that are circumferentially and equidistantly fixed to the upper end of the positioning platform. A sliding plate is movably provided on the upper end surface of the fixed frame. A locking piece for locking the bottom of the wheel hub is fixedly installed at one end of the sliding plate. A control component is provided on the fixed frame that can push the sliding plate and the locking piece as a whole to move towards the center area of ​​the positioning platform.

[0018] By adopting the above technical solution, the wheel hub is placed in the middle of the positioning platform. The four slides on the fixed frame are moved synchronously to the middle position through the control components. The bottom edge of the wheel hub is locked between the locking plate and the slide, thereby stably clamping the wheel hub. This method can be applied to the clamping of wheel hubs of different sizes.

[0019] A further configuration of the present invention is as follows: the control component includes a lead screw rotatably mounted on a fixed frame; a connecting plate threadedly connected to the lead screw is fixedly mounted on the bottom of the slide plate; a guide strip is fixedly mounted on the outer wall of the fixed frame; guide blocks adapted to slide with the guide strip are fixedly mounted on both sides of the bottom of the slide plate; and a drive component for driving the four lead screws to rotate synchronously is provided at the bottom of the positioning platform.

[0020] By adopting the above technical solution, the four lead screws are rotated synchronously by the drive component. With the sliding cooperation of the guide block and the guide bar, the slide plate can slide stably on the fixed frame to position the wheel hub.

[0021] A further configuration of the present invention is as follows: the driving component includes a bearing disposed on the rotating rod and an external gear ring coaxially fixed to the outside of the bearing; an internal gear ring is fixedly mounted on the upper end of the external gear ring; an adjusting motor is fixedly mounted on the top of the positioning platform; an internal gear adapted to the internal gear ring is installed at the output end of the adjusting motor; and a gear linkage structure is also provided between the external gear ring and the four lead screws.

[0022] By adopting the above technical solution, the internal gear is driven to rotate by the regulating motor, and the internal and external gear rings rotate as a whole. Under the action of the gear linkage structure, the four lead screws rotate synchronously, thereby controlling the movement of the four slide plates and locking plates as a whole, and fixing the wheel hub.

[0023] A further configuration of the present invention is as follows: the gear linkage structure includes four driven rods rotatably mounted on the positioning platform, the bottom of the driven rod is fixedly fitted with an external gear adapted to the external gear ring, the top of the driven rod is fixedly fitted with a first bevel tooth, and the lead screw is fitted with a second bevel tooth adapted to the first bevel tooth at one end extending to the outside of the positioning platform.

[0024] By adopting the above technical solution, when the external gear ring rotates, it drives the four external gears to rotate synchronously, and drives the first bevel gear to rotate through the driven rod, so that the four lead screws rotate synchronously, thereby achieving the positioning of the wheel hub.

[0025] The beneficial effects of this invention are:

[0026] 1. This invention places the wheel hub on a positioning table, and an adjusting motor drives the internal gear to rotate, causing the internal and external gear rings to rotate as a whole. Under the action of the gear linkage structure, the four lead screws rotate synchronously, thereby controlling the four slide plates and locking plates to move synchronously towards the center of the positioning table, thus positioning the wheel hub. During the grinding process, the positioning table can be rotated by the control motor and rotating rod, thereby grinding the entire surface of the roller. It is applicable to the automatic fixing and grinding of wheel hubs of different sizes, and its processing efficiency is higher.

[0027] 2. In this invention, the height of the grinding disc structure is adjusted by a hydraulic cylinder, and the front and rear positions of the grinding disc structure are controlled by a pneumatic cylinder. After approaching the hub, the grinding disc structure can grind its surface. During the grinding process, the first motor drives the rotating bracket to rotate, and the U-shaped frame drives the grinding disc structure to rotate longitudinally, which can adjust its longitudinal grinding angle and increase its grinding range.

[0028] 3. In this invention, the second motor drives the worm gear to rotate, which in turn drives the worm wheel and the U-shaped frame to rotate. This allows the grinding disc structure to be adjusted laterally. Combined with the drive of the first motor, the grinding angle can be flexibly adjusted, providing automatic adjustment capability for the grinding angle. This saves more labor and achieves higher grinding precision. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an overall structural diagram of a wheel hub grinding device for electric tricycles according to the present invention.

[0031] Figure 2 This is the present invention. Figure 1 Overall structural diagram of the adjustable grinding mechanism.

[0032] Figure 3 This is the present invention. Figure 2 Connection diagram of the middle grinding disc structure.

[0033] Figure 4 This is the present invention. Figure 1 Structural diagram of the center hub positioning component.

[0034] Figure 5 This is the present invention. Figure 4 The structural diagram viewed from below.

[0035] Figure 6 This is the present invention. Figure 4 Overall structural diagram of the central fixed frame.

[0036] Figure 7 This is the present invention. Figure 6 Internal structure diagram of the central fixed frame.

[0037] In the diagram: 1. Workbench; 2. Hub positioning component; 21. Control motor; 22. Rotating rod; 23. Positioning platform; 24. Fixing frame; 25. Slide plate; 26. Locking plate; 27. Lead screw; 28. Connecting plate; 29. ​​Guide bar; 210. Guide block; 211. External gear ring; 212. Internal gear ring; 213. Adjusting motor; 214. Internal gear; 215. Driven rod; 216. External gear; 217. First bevel gear; 218. Second bevel gear; 3. Adjustable grinding mechanism; 31. Hydraulic cylinder; 32. Lifting plate; 33. Cylinder; 34. Moving plate; 35. First motor; 36. Rotating bracket; 37. U-shaped frame; 38. Drive motor; 39. Grinding disc; 310. Second motor; 311. Worm gear; 312. Worm wheel; 313. Guide rail; 314. Support column; 4. Grinding controller. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, a wheel hub grinding device for an electric tricycle includes a worktable 1. The upper surface of the worktable 1 is provided with a wheel hub positioning component 2, an adjustable grinding mechanism 3, and a grinding controller 4. The adjustable grinding mechanism 3 includes a hydraulic cylinder 31 and a lifting plate 32 installed at the output end of the hydraulic cylinder 31. The upper end of the lifting plate 32 is provided with a cylinder 33 and a moving plate 34 connected to the output end of the cylinder 33. The other side of the moving plate 34 is provided with a grinding disc structure and an adjustment component for adjusting its grinding angle. The adjustment component includes a first motor 35 installed on the moving plate 34. The output end of the first motor 35 is provided with a rotating bracket 36. A U-shaped frame 37 is rotatably connected to the rotating bracket 36. The end of the U-shaped frame 37 is connected to the grinding disc structure.

[0040] First, the operator inputs the wheel hub dimensions into the grinding controller 4, places the wheel hub on the workbench 1, and clamps and positions it using the wheel hub positioning component 2. Then, the height of the grinding disc structure is adjusted by the hydraulic cylinder 31, and the front and rear position of the grinding disc structure is controlled by the cylinder 33. After approaching the wheel hub, the grinding disc structure can grind its surface. During the grinding process, the first motor 35 drives the rotating bracket 36 to rotate, and drives the grinding disc structure to rotate longitudinally through the U-shaped frame 37, which can adjust its longitudinal grinding angle and increase its grinding range.

[0041] like Figure 3 As shown, the grinding disc structure includes a drive motor 38 fixed to the end face of the U-shaped frame 37, and a grinding disc 39 is installed on the output end of the drive motor 38; the drive motor 38 controls the rotation of the grinding disc 39, so that when the grinding disc 39 is close to the wheel hub, it is ground.

[0042] like Figure 2 , Figure 3 As shown, the adjustment component also includes a second motor 310 mounted on the movable plate 34. The output end of the second motor 310 is equipped with a worm gear 311 that is rotatably connected to the rotating bracket 36. The inner side of the rotating bracket 36 is rotatably provided with a worm wheel 312 that is adapted to the worm gear 311. A rotating shaft is fixedly mounted on the worm wheel 312 and is fixedly connected to the U-shaped frame 37 through the rotating shaft.

[0043] The second motor 310 drives the worm gear 311 to rotate, which in turn drives the worm wheel 312 and the U-shaped frame 37 to rotate, thereby allowing the grinding disc structure to adjust its angle laterally. In conjunction with the drive of the first motor 35, the grinding angle can be flexibly adjusted. When the worm wheel 312 rotates, the rotating shaft drives the U-shaped frame 37 to rotate, thereby adjusting the lateral angle of the end grinding disc structure.

[0044] like Figure 2 As shown, the upper end of the lifting plate 32 is fixedly equipped with two guide rails 313 that are slidably adapted to the bottom of the moving plate 34, and the top of the workbench 1 is fixedly equipped with a support column 314 that is slidably adapted to the lifting plate 32; this makes the forward and backward sliding of the moving plate 34 more stable, and when the lifting plate 32 moves up and down, it is guided by the support column 314, making the overall structure rise and fall more smoothly.

[0045] like Figure 4 , Figure 5As shown, the hub positioning component 2 includes a control motor 21 installed inside the workbench 1. A rotating rod 22 is installed at the output end of the control motor 21, and a positioning platform 23 is installed at the other end of the rotating rod 22. The positioning platform 23 is provided with four-sided locking components. After the hub is placed on the positioning platform 23, it is locked by the four-sided locking components. During the grinding process, the control motor 21 and the rotating rod 22 can drive the positioning platform 23 to rotate, thereby grinding the entire surface of the roller.

[0046] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the four-sided locking component includes four fixed frames 24 circumferentially and equidistantly fixed to the upper end of the positioning platform 23. A sliding plate 25 is movably mounted on the upper surface of each fixed frame 24. A locking piece 26 for clamping the bottom of the wheel hub is fixedly mounted at one end of each sliding plate 25. A control component is provided on the fixed frame 24 to push the sliding plate 25 and the locking piece 26 as a whole towards the center area of ​​the positioning platform 23. The control component includes a lead screw 27 rotatably mounted on the fixed frame 24. A connecting plate 28 threadedly connected to the lead screw 27 is fixedly mounted at the bottom of the sliding plate 25. A guide strip 29 is fixedly mounted on the outer wall of the fixed frame 24. Guide blocks 210 that slide and adapt to the guide strip 29 are fixedly mounted on both sides of the bottom of the sliding plate 25. A drive mechanism for synchronously rotating the four lead screws 27 is provided at the bottom of the positioning platform 23. The driving component includes a bearing mounted on a rotating rod 22 and an external gear ring 211 coaxially fixed to the outside of the bearing. An internal gear ring 212 is fixedly mounted on the upper end of the external gear ring 211. An adjusting motor 213 is fixedly mounted on the top of the positioning platform 23. An internal gear 214 adapted to the internal gear ring 212 is installed at the output end of the adjusting motor 213. A gear linkage structure is also provided between the external gear ring 211 and the four lead screws 27. The gear linkage structure includes four driven rods 215 rotatably mounted on the positioning platform 23. An external gear 216 adapted to the external gear ring 211 is fixedly mounted at the bottom of the driven rod 215, and a first bevel tooth 217 is fixedly mounted at the top. A second bevel tooth 218 adapted to the first bevel tooth 217 is installed at the end of the lead screw 27 extending to the outside of the positioning platform 23.

[0047] The hub is placed in the middle of the positioning platform 23. The four slide plates 25 are moved synchronously to the middle position on the fixed frame 24 by the control components. The bottom edge of the hub is locked between the locking plate 26 and the slide plate 25, thereby stably clamping the hub. This method can be used for clamping hubs of different sizes. The adjusting motor 213 drives the internal gear 214 to rotate, and the internal gear ring 212 and the external gear ring 211 rotate as a whole. When the external gear ring 211 rotates, it drives the four external gears 216 to rotate synchronously. The driven rod 215 drives the first bevel gear 217 to rotate, so that the four lead screws 27 rotate synchronously, thereby controlling the movement of the four slide plates 25 and the locking plate 26 as a whole. With the sliding cooperation of the guide block 210 and the guide strip 29, the slide plate 25 can slide stably on the fixed frame 24 to fix the hub.

Claims

1. A device for grinding wheel hubs of an electric tricycle, comprising a worktable (1), characterized in that: The upper surface of the workbench (1) is provided with a hub positioning component (2), an adjustable grinding mechanism (3) and a grinding controller (4). The adjustable grinding mechanism (3) includes a hydraulic cylinder (31) and a lifting plate (32) installed at the output end of the hydraulic cylinder (31). The upper end of the lifting plate (32) is provided with a cylinder (33) and a moving plate (34) connected to the output end of the cylinder (33). The other side of the moving plate (34) is provided with a grinding disc structure and an adjustment component for adjusting its grinding angle. The adjustment component includes a first motor (35) installed on the moving plate (34). The output end of the first motor (35) is provided with a rotating bracket (36). A U-shaped frame (37) is rotatably connected to the rotating bracket (36). The end of the U-shaped frame (37) is connected to the grinding disc structure.

2. The device for grinding wheel hubs of an electric tricycle according to claim 1, characterized in that: The grinding disc structure includes a drive motor (38) fixed to the end face of the U-shaped frame (37), and a grinding disc (39) is installed on the output end of the drive motor (38).

3. The device for grinding the wheel hub of an electric tricycle according to claim 2, characterized in that: The adjustment component also includes a second motor (310) mounted on the movable plate (34). The output end of the second motor (310) is equipped with a worm gear (311) that is rotatably connected to the rotating bracket (36). The inner side of the rotating bracket (36) is rotatably provided with a worm wheel (312) that is adapted to the worm gear (311).

4. The device for grinding the wheel hub of an electric tricycle according to claim 3, characterized in that: A rotating shaft is fixedly mounted on the worm gear (312) and is fixedly connected to the U-shaped frame (37) through the rotating shaft.

5. A device for grinding the wheel hub of an electric tricycle according to claim 4, characterized in that: The upper end of the lifting plate (32) is fixedly equipped with two guide rails (313) that are slidably adapted to the bottom of the moving plate (34), and the top of the workbench (1) is fixedly equipped with a support column (314) that is slidably adapted to the lifting plate (32).

6. The device for grinding the wheel hub of an electric tricycle according to claim 1, characterized in that: The hub positioning component (2) includes a control motor (21) installed inside the workbench (1). A rotating rod (22) is installed at the output end of the control motor (21). A positioning platform (23) is installed at the other end of the rotating rod (22). A four-sided locking component is provided on the positioning platform (23).

7. A device for grinding wheel hubs of an electric tricycle according to claim 6, characterized in that: The four-sided locking components include four fixed frames (24) that are circumferentially and equidistantly fixed on the upper end of the positioning platform (23). A sliding plate (25) is movably provided on the upper surface of the fixed frame (24). A locking piece (26) for locking the bottom of the wheel hub is fixedly installed at one end of the sliding plate (25). A control component is provided on the fixed frame (24) that can push the sliding plate (25) and the locking piece (26) as a whole to move towards the center area of ​​the positioning platform (23).

8. A device for grinding wheel hubs of an electric tricycle according to claim 7, characterized in that: The control components include a lead screw (27) rotatably mounted on a fixed frame (24), a connecting plate (28) threadedly connected to the lead screw (27) fixedly mounted at the bottom of the slide plate (25), a guide strip (29) fixedly mounted on the outer wall of the fixed frame (24), and guide blocks (210) that slide and adapt to the guide strip (29) fixedly mounted on both sides of the bottom of the slide plate (25). The bottom of the positioning platform (23) is provided with a drive component that drives the four lead screws (27) to rotate synchronously.

9. A device for grinding wheel hubs of an electric tricycle according to claim 8, characterized in that: The driving component includes a bearing mounted on the rotating rod (22) and an external gear ring (211) coaxially fixed to the outside of the bearing. An internal gear ring (212) is fixedly mounted on the upper end of the external gear ring (211). An adjusting motor (213) is fixedly mounted on the top of the positioning table (23). An internal gear (214) adapted to the internal gear ring (212) is installed at the output end of the adjusting motor (213). A gear linkage structure is also provided between the external gear ring (211) and the four lead screws (27).

10. A device for grinding wheel hubs of an electric tricycle according to claim 9, characterized in that: The gear linkage structure includes four driven rods (215) rotatably mounted on the positioning table (23). The bottom of the driven rod (215) is fixedly equipped with an external gear (216) adapted to the external gear ring (211), and the top is fixedly equipped with a first bevel tooth (217). The lead screw (27) is equipped with a second bevel tooth (218) adapted to the first bevel tooth (217) at one end extending to the outside of the positioning table (23).

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