A rim polishing machine

Abstract

The application discloses a rim polishing machine, and particularly relates to the technical field of rim processing, which comprises a rim outer end polishing device, a rim inner end polishing device and a rim positioning device; the rim positioning device comprises a fixing seat, a positioning disc and a limiting clamping rail embedded and rotated on the side end of the rim; the rim outer end polishing device comprises a left polishing wheel and a right polishing wheel, and the left polishing wheel and the right polishing wheel are respectively in close contact with the two side ends of the rim; the rim inner end polishing device comprises an inner polishing wheel, a moving slide rail, a fixing seat and a connecting rod. The rim polishing machine is additionally provided with the left polishing wheel, the right polishing wheel and the inner polishing wheel, and three parts of the rim to be polished can be polished at the same time, so that the polishing time is reduced. Meanwhile, for the same batch of rims, the three polishing wheels only need to be adjusted to the predetermined positions, and the contact position and the close contact tightness between the constant polishing wheel and the rim do not need to be adjusted separately, so that the polishing efficiency is improved to a greater extent.

Description

Technical Field

[0001] This application relates to the field of wheel rim processing technology, and in particular to a wheel rim polishing machine. Background Technology

[0002] Wheel rim polishing, a crucial step in wheel manufacturing, directly impacts the product's aesthetics, corrosion resistance, and lifespan. Wheel rim polishing primarily adheres to industry standards (such as QC / T standards), stipulating that the texture of the exposed surface of the wheel rim must be uniform and consistent, with a roughness Ra ≤ 0.4μm, to meet the pretreatment requirements of high-end electroplating or anodizing processes. Simultaneously, polishing thoroughly removes rust, oxides, and residual welding slag from the wheel rim surface (especially in the weld area), preventing contact between the metal and the surrounding environment and thus reducing the risk of corrosion.

[0003] However, traditional polishing mainly relies on manual hand-held tools, which has significant drawbacks, such as low efficiency and inconsistent quality. Therefore, to overcome these limitations, rim polishing incorporates a positioning system consisting of cylinders, slide rails, and support wheels to clamp and rotate the rim. For example: Internal rim polishing machines use cylinders to raise the support frame, working in conjunction with flap wheels to polish the inner wall of the rim, but manual loading and unloading of workpieces is still required. External rim polishing machines employ a bidirectional flap wheel design, with left and right motors rotating in opposite directions to counteract torque and improve the uniformity of the outer surface polishing.

[0004] However, the existing polishing equipment still has the following problems in use: 1. Traditional polishing machines fix the rim from the inner ring when polishing the outer ring, and from the outer ring when polishing the inner ring. Therefore, multiple polishing machines need to be used in series. 2. Traditional polishing machines require repeated adjustment of the position between the polishing wheel and the polishing surface for rims of the same or different specifications, resulting in excessively long polishing times. Summary of the Invention

[0005] This invention provides a wheel rim polishing machine, which adds a left polishing wheel, a right polishing wheel, and an inner polishing wheel, simultaneously polishing three parts of the wheel rim to be polished, thereby reducing polishing time. Furthermore, for wheel rims from the same batch, the three polishing wheels only need to be adjusted to predetermined positions, eliminating the need to individually maintain the contact position and tightness between the polishing wheels and the wheel rim, thus significantly improving polishing efficiency.

[0006] The objective of this invention is achieved through the following technical solution: A wheel rim polishing machine includes a wheel rim outer end polishing device, a wheel rim inner end polishing device, and a wheel rim positioning device; The rim positioning device includes a fixed base, a positioning plate, and a limiting rail adapted to be embedded and rotated at the side end of the rim; the positioning plate and the fixed base are fixed, and the limiting rail is fixedly installed on the side edge of the positioning plate; The outer end polishing device of the rim includes a left polishing wheel and a right polishing wheel, which are respectively in close contact with the two sides of the rim; the inner end polishing device of the rim includes an inner polishing wheel, a movable slide rail, a fixed seat, and a connecting rod; one end of the connecting rod is slidably connected to the movable slide rail, and the other end is fixed to the fixed seat; the inner polishing wheel and the fixed seat are detachably connected, and the fixed seat is in close contact with the inner end of the rim.

[0007] Preferably, the rim inner end polishing device further includes a rotating motor, the output end of which passes through a fixed base and is rotatably connected to the inner polishing wheel.

[0008] Preferably, the rim inner end polishing device further includes an inner polishing wheel positioning assembly, which includes a spring, a sliding seat, a positioning rod, a positioning block, an upper guide block, and a lower guide block; The sliding seat is slidably installed inside the hollow interior of the fixed seat; the sliding seat has a receiving groove inside, one end of the spring is fixed to the bottom end of the fixed seat, and the other end is fixed to the bottom of the receiving groove; the positioning rod is rotatably installed on the sliding seat, and the positioning block is fixed to the end of the positioning rod; the upper guide block and the lower guide block are both fixed to the inner wall of the fixed seat, and a positioning channel adapted to the sliding of the positioning block is left between the upper guide block and the lower guide block, and an upward sliding channel adapted to the sliding of the positioning block is left between the upper guide block and the side end of the fixed seat.

[0009] Preferably, the positioning channel is Z-shaped, and the positioning block can be stopped at the Z-shaped bend of the positioning channel.

[0010] Preferably, the sliding seat is provided with a limiting guide block, and a guide channel is formed between the limiting guide block and the upper guide block to adapt to the oblique sliding of the positioning block.

[0011] Preferably, the inner polishing wheel positioning assembly also includes a connecting spring. The positioning rod is rotatably mounted on the sliding seat via a rotating shaft. One end of the connecting spring is fixed to the rotating shaft, and the other end is fixed to the positioning rod.

[0012] Preferably, the sliding seat is provided with a limiting protrusion, and correspondingly, the inner end of the fixed seat is provided with a groove adapted to slide the limiting protrusion.

[0013] Preferably, the rim outer end polishing device also includes a slide rail column, a mounting base, and a rotary drive motor. There are two slide rail columns, two mounting bases, and two rotary drive motors. The output end of the rotary drive motor is detachably connected to the right polishing wheel, and the mounting base is slidably mounted on the slide rail column.

[0014] Preferably, the rim polishing machine also includes a chip collection frame, and the fixing seat is fixed to the chip collection frame.

[0015] Preferably, the chip collection frame is equipped with a baffle, and the rotating motor is fixedly installed on the baffle.

[0016] Compared with the prior art, the advantages or beneficial effects of the technical solution of this application include: 1. The outer and inner polishing devices of the rim can polish the surface of the rim simultaneously in one go, eliminating the need for multiple devices to be connected in series, thus saving the rim installation time to the greatest extent.

[0017] 2. This application utilizes a quick-release and quick-installation structure to achieve rapid installation of the wheel rim and rapid adjustment and positioning of the polishing wheel. Specifically designed for polishing wheel rims in the same batch, a single adjustment is sufficient to accommodate the entire batch of polishing production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram (back side) of a rim polishing machine. Figure 2 A three-dimensional structural diagram (front and side) of a rim polishing machine; Figure 3 This is a schematic cross-sectional view of a wheel rim polishing machine. Figure 4 for Figure 3 Enlarged view of part A in the image; Figure 5 A three-dimensional structural diagram of the polishing wheel positioning assembly; Figure 6 This is a front view of the polishing wheel positioning assembly.

[0019] In the diagram: 2. Rotary drive motor; 3. Mounting base; 4. Slide rail column; 5. Rim; 6. Inner polishing wheel; 7. Moving slide rail; 8. Baffle; 9. Rotary motor; 11. Chip collection frame; 12. Output end; 13. Fixed base; 14. Right polishing wheel; 15. Positioning plate; 16. Fixed base; 17. Limiting rail; 19. Limiting guide block; 20. Rotating shaft; 21. Positioning rod; 22. Positioning block; 23. Upper guide block; 24. Spring; 25. Lower guide block; 26. Connecting spring; 27. Sliding seat; 28. Limiting protrusion; 30. Positioning channel. Detailed Implementation

[0020] The following detailed description of the embodiments of this application, in conjunction with the accompanying drawings, will provide a thorough understanding of how this application uses technical means to solve technical problems and achieve corresponding technical effects, enabling its implementation. The embodiments of this application and the various features within them can be combined with each other without conflict, and all resulting technical solutions are within the protection scope of this application.

[0021] It should be clearly stated that the embodiments described below are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] Example 1: This example provides a detailed explanation of the design for a wheel rim polishing machine. A rim polishing machine includes an outer rim polishing device, an inner rim polishing device, and a rim positioning device. The rim positioning device includes a fixed base 16, a positioning plate 15, and a limiting rail 17 adapted to the side end of the rim 5 for rotation. The positioning plate 15 is fixed to the fixed base 16, and the limiting rail 17 is fixedly installed on the side edge of the positioning plate 15. The outer rim polishing device includes a left polishing wheel and a right polishing wheel 14, which are respectively in close contact with the two sides of the rim 5. The inner rim polishing device includes an inner polishing wheel 6, a movable slide rail 7, a fixed base 13, and a connecting rod. One end of the connecting rod is slidably connected to the movable slide rail 7, and the other end is fixed to the fixed base 13. The inner polishing wheel 6 and the fixed base 13 are detachably connected, and the fixed base 13 is in close contact with the inner side of the rim 5. The inner rim polishing device also includes a rotating motor 9, the output end 12 of which passes through the fixed base 13 and is rotatably connected to the inner polishing wheel 6.

[0023] like Figure 1 and Figure 2 As shown, the rim 5 is pre-fixed on the limiting rail 17. During operation, the left polishing wheel and the right polishing wheel 14 are each driven by a motor. The polishing areas corresponding to the left polishing wheel and the right polishing wheel 14 are the upper half and the lower half of the rim surface, respectively. That is, the overall polishing of the outer surface of the rim is achieved by polishing with the left polishing wheel and the right polishing wheel 14.

[0024] When polishing the outside of the rim, the inner polishing wheel 6 can be replaced with a rubber wheel. The rim will then rotate with the inner polishing wheel 6, and the left and right polishing wheels 14, acting as abrasive wheels, will polish the outer surface of the rim. After polishing, the polishing effect is manually inspected, and any local defects can be repaired by manual polishing. When polishing the inside of the rim is required, the left and right polishing wheels 14 can be replaced with rubber wheels, and the inner polishing wheel 6 can be replaced with an abrasive wheel. As the rim rotates with the left and right polishing wheels 14, the inner polishing wheel 6 can polish the inside of the rim.

[0025] When using this equipment, both the inner and outer surfaces of the rim can be polished on a single machine, eliminating the need for multiple polishing devices in series, thus significantly saving installation and polishing time. Furthermore, for rims from the same batch, quick disassembly and quick polishing can be achieved by pre-setting the sizes of the left polishing wheel, right polishing wheel 14, and inner polishing wheel 6.

[0026] In this embodiment, the inner end polishing device of the rim also includes an inner polishing wheel positioning assembly, which includes a spring 24, a sliding seat 27, a positioning rod 21, a positioning block 22, an upper guide block 23 and a lower guide block 25; The sliding seat 27 is slidably installed inside the hollow interior of the fixed seat 16. The sliding seat 27 has an internal receiving groove. One end of the spring 24 is fixed to the bottom of the fixed seat 16, and the other end is fixed to the bottom of the receiving groove. The positioning rod 21 is rotatably installed on the sliding seat 27, and the positioning block 22 is fixed to the end of the positioning rod 21. The upper guide block 23 and the lower guide block 25 are both fixed to the inner wall of the fixed seat 16. A positioning channel 30 is provided between the upper guide block 23 and the lower guide block 25 to accommodate the sliding of the positioning block 22. An upward sliding channel is provided between the upper guide block 23 and the side of the fixed seat 16 to accommodate the sliding of the positioning block 22. The positioning channel 30 is Z-shaped, and the positioning block 22 can be stopped at the Z-shaped bend of the positioning channel 30. The sliding seat 27 is provided with a limiting guide block 19, and a guide channel is formed between the limiting guide block 19 and the upper guide block 23 to accommodate the oblique sliding of the positioning block 22. like Figures 3-6 As shown, the inner polishing wheel 6 is fixedly mounted on the sliding seat 27. When the operator presses the inner polishing wheel 6, the sliding seat 27 can be driven to slide within the fixed seat 16. The positioning block 22 on the positioning rod 21 will first enter the positioning channel 30 formed between the upper guide block 23 and the lower guide block 25 along the guide channel formed by the limiting guide block 19 and the upper guide block 23. When the positioning block 22 moves to the Z-shaped turn, it will stop and lock, at which point the operator stops applying force. The inner polishing wheel 6 then contacts the inner end face of the rim, realizing the function of synchronous driving or polishing. When the operator presses the sliding seat 27 again, the positioning block 22 can continue to slide along the positioning channel 30 until it returns to its original position from the upper sliding channel.

[0027] In the above process, the inner polishing wheel positioning assembly also includes a connecting spring 26, and the positioning rod 21 is rotatably mounted on the sliding seat 27 via the rotating shaft 20. One end of the connecting spring 26 is fixed to the rotating shaft 20, and the other end is fixed to the positioning rod 21.

[0028] Please see Figure 5 and Figure 6 The advantage of using the connecting spring 26 is that it allows the positioning rod 21 to maintain a rightward tendency, which facilitates its return to its original position. Simultaneously, it also helps the positioning block 22 to slide down the guide channel and enter through the entrance of the positioning channel 30.

[0029] In this embodiment, the sliding seat 27 is provided with a limiting protrusion 28, and correspondingly, the inner end of the fixed seat 16 is provided with a sliding groove adapted to the sliding of the limiting protrusion 28.

[0030] In this embodiment, the rim outer end polishing device also includes a slide rail post 4, a mounting base 3, and a rotation drive motor 2. There are two slide rail posts 4, two mounting bases 3, and two rotation drive motors 2. The output end of the rotation drive motor 2 is detachably connected to the right polishing wheel 14, and the mounting base 3 is slidably mounted on the slide rail post 4.

[0031] This embodiment also includes a chip collection frame 11, and a fixing base 16 is fixed to the chip collection frame 11.

[0032] In this embodiment, a baffle 8 is provided on the chip collection frame 11, and the rotating motor 9 is fixedly installed on the baffle 8.

[0033] Example 2: Mass Production Line for Aluminum Alloy Wheels of New Energy Vehicles Scenario requirement: A new energy vehicle manufacturer's wheel hub factory needs to process 500 19-inch lightweight aluminum alloy rims every day, requiring the surface to achieve a mirror effect of Ra≤0.3μm to match the electroplating process. Existing traditional equipment requires multiple disassembly and equipment switching of the rims, with a single piece polishing time of 8 minutes and a dust collection rate of only 50%.

[0034] Equipment adaptation solution: Left / Right Polishing Wheels: Equipped with 800-grit silicon carbide abrasive wheels, respectively pressed against the two end faces of the rim (the junction of the spokes and the rim), driven in opposite directions by dual motors. Figure 2 2) Eliminate torque offset by rotating drive motor in the middle.

[0035] Inner polishing wheel 6: Replaced with a custom conical grinding head (the detachable design described in Patent Embodiment 1), which polishes deep into the inner groove of the rim, while being driven by a rotating motor 9 (rated speed 3000 rpm).

[0036] Rapid operation: Rim 5 engages with limit rail 17 ( Figure 1 After component 17), the three polishing wheels start simultaneously to polish the outer end face, the gap between the stripes and the inner ring respectively, reducing the time to 3 minutes per piece.

[0037] Quick Change and Positioning Optimization Batch adaptation: Wheel rims of the same batch are aligned via positioning disc 15 ( Figure 3 The pre-positioning slot on the mounting base is fixed, and the position of the mounting base 3 on the slide rail column 4 is adjusted. Figure 1 ), lock the distance between the right polishing wheel 14 and the rim.

[0038] Function of the inner wheel positioning component: When the operator presses the inner polishing wheel 6, it triggers... Figure 4 The positioning block 22 slides along the Z-shaped positioning channel 30 to ensure constant pressure contact between the grinding head and the inner wall of the rim, and the spring 24 provides buffer pressure to maintain the reset.

[0039] Dust control and benefits: Chip collection frame 11 (patent) Figure 2 Equipped with a negative pressure dust collection module, the aluminum powder recovery rate has been increased to 85%. Production results: Daily production capacity has increased from 60 pieces to 160 pieces, the rework rate has decreased from 15% to 4%, and annual cost savings exceed 1.2 million yuan.

[0040] Example 3: Mixed-line processing in a high-end aftermarket wheel customization workshop Scenario requirement: A wheel modification workshop needs to process rims of various sizes (15-22 inch steel / aluminum alloy rims), including cleaning welding slag from retro steel rims and brushing finish on forged aluminum alloy rims. Traditional equipment is too time-consuming to adjust and cannot meet small-batch custom orders.

[0041] Intelligent switching of polishing wheels: When polishing the weld seam of the steel wheel rim: the right polishing wheel 14 is replaced with a wire brush wheel (removable design), and the left polishing wheel is used as a rubber drive wheel (function of Example 1).

[0042] To process brushed aluminum alloy: the inner polishing wheel 6 is replaced with a nylon wire winding wheel, which is moved via slide rail 7 ( Figure 1 Component 7) Precisely control the wire drawing angle.

[0043] For spokes with special curved surfaces (such as dendritic spokes): utilize Figure 5 The positioning rod 21 adjusts the tilt angle of the polishing head, and the positioning block 22 corresponds to different pressure levels at the locking point position of the Z-shaped channel 30 (the Z-shaped channel 30 can be modified according to actual needs, and is designed to be high pressure rust removal / low pressure wire drawing).

[0044] Case Study: When repairing corrosion spots on the inner ring of a 22-inch BMW wheel rim, the operator presses down on the sliding seat 27 to cause the positioning block 22 to enter the second locking position of the channel. Figure 4 As shown), spring 24 provides the elastic force for the sliding seat 27 to return to its original position. The changeover time for multi-specification mixed-line processing is reduced from 20 minutes to 2 minutes, enabling the handling of limited-edition rim refurbishment orders (with a 200% increase in unit price). In practical applications, the chip collection frame 11 is equipped with a magnetic partition to separate steel rim chips from aluminum powder, achieving waste sorting and recycling.

Claims

1. A rim polishing machine, characterized in that, Includes a rim outer end polishing device, a rim inner end polishing device, and a rim positioning device; The rim positioning device includes a fixed seat (16), a positioning plate (15), and a limiting rail (17) that is adapted to the side of the rim (5) for rotation. The positioning plate (15) and the fixed seat (16) are fixed, and the limiting rail (17) is fixedly installed on the side edge of the positioning plate (15). The rim outer end polishing device includes a left polishing wheel and a right polishing wheel (14), which are respectively in close contact with the two sides of the rim (5). The rim inner end polishing device includes an inner polishing wheel (6), a sliding rail (7), a fixed seat (13), and a connecting rod. One end of the connecting rod is slidably connected to the sliding rail (7), and the other end is fixed to the fixed seat (13). The inner polishing wheel (6) and the fixed seat (13) are detachably connected, and the fixed seat (13) is in close contact with the inner side of the rim (5). The rim inner end polishing device also includes an inner polishing wheel positioning assembly, which includes a spring (24), a sliding seat (27), a positioning rod (21), a positioning block (22), an upper guide block (23), and a lower guide block (25). The sliding seat (27) is slidably installed inside the hollow interior of the fixed seat (16). The sliding seat (27) has a receiving groove inside. One end of the spring (24) is fixed to the bottom end of the fixed seat (16), and the other end is fixed to the bottom of the receiving groove. The positioning rod (21) is rotatably installed on the sliding seat (27), and the positioning block (22) is fixed to the end of the positioning rod (21). The upper guide block (23) 23) and the lower guide block (25) are both fixed to the inner wall of the fixed seat (16). A positioning channel (30) for the sliding of the positioning block (22) is left between the upper guide block (23) and the lower guide block (25). An upward sliding channel for the sliding of the positioning block (22) is left on the side of the upper guide block (23) and the fixed seat (16). The positioning channel (30) is Z-shaped. The positioning block (22) can be stopped at the Z-shaped turning point of the positioning channel (30). A limiting guide block (19) is provided on the sliding seat (27). A guide channel for the oblique sliding of the positioning block (22) is formed between the limiting guide block (19) and the upper guide block (23).

2. The rim polishing machine according to claim 1, characterized in that, The rim inner end polishing device also includes a rotating motor (9), the output end (12) of which is rotatably connected through the fixed seat (13) and the inner polishing wheel (6).

3. A rim polishing machine according to claim 1, characterized in that, The inner polishing wheel positioning assembly also includes a connecting spring (26), and the positioning rod (21) is rotatably mounted on the sliding seat (27) via a rotating shaft (20). One end of the connecting spring (26) is fixed to the rotating shaft (20), and the other end is fixed to the positioning rod (21).

4. A rim polishing machine according to claim 1, characterized in that, The sliding seat (27) is provided with a limiting protrusion (28), and correspondingly, the inner end of the fixed seat (16) is provided with a sliding groove adapted to the sliding of the limiting protrusion (28).

5. A rim polishing machine according to claim 1, characterized in that, The rim outer end polishing device also includes a slide rail column (4), a mounting base (3) and a rotary drive motor (2). There are two slide rail columns (4), two mounting bases (3) and two rotary drive motors (2). The output end of the rotary drive motor (2) is detachably connected to the right polishing wheel (14). The mounting base (3) is slidably mounted on the slide rail column (4).

6. A rim polishing machine according to claim 1, characterized in that, It also includes a chip collection frame (11), and the fixing seat (16) is fixed to the chip collection frame (11).

7. A rim polishing machine according to claim 1, characterized in that, A baffle (8) is provided on the chip collection frame (11), and the rotating motor (9) is fixedly installed on the baffle (8).

Images