Immersion cylindrical polishing apparatus

Abstract

This invention relates to the field of grinding and polishing technology, specifically to an immersion-type external cylindrical polishing device, comprising: a frame; a product fixture driving system, mounted on the frame, including a vertically movable driving component and an auxiliary tailstock, the driving component having a quick-release chuck for clamping and driving the inverted product fixture to rotate; a lower plate moving system, movably mounted on the frame and located below the product fixture driving system; a brush roller assembly, mounted on the lower plate moving system, the brush roller assembly having a hollow cylindrical brush roller, the inner wall of the brush roller having polishing brushes for accommodating and wrapping the product to be processed held by the product fixture driving system, for wrapping polishing of the outer diameter of the product to be processed; and a polishing liquid tank, mounted on the frame and located below the brush roller assembly, having an open-top box structure for accommodating polishing liquid and completely immersing the brush roller assembly and the product to be processed in the polishing liquid.

Description

Technical Field

[0001] This invention relates to the field of grinding and polishing technology, specifically to an immersion-type cylindrical polishing device. Background Technology

[0002] With the rapid development of industries such as optics, electronics, and precision machinery, the requirements for the surface finishing quality of brittle materials such as glass, ceramics, and sapphire, as well as metals, are becoming increasingly stringent. External surface polishing, as a key process, directly affects the performance and appearance quality of products.

[0003] Currently, external cylindrical polishing technology is developing in several ways: First, in terms of polishing tools, it has evolved from rigid polishing wheels to flexible polishing wheels and brush rollers to meet the polishing needs of different materials and shapes. Second, in terms of polishing fluid supply, it has progressed from manual application to automatic spraying and circulating supply to improve polishing efficiency and consistency. Third, in terms of equipment automation, CNC technology has been introduced to achieve multi-axis linkage and precise positioning. However, existing technologies still have the following shortcomings: First, the utilization rate of polishing media is low. The mainstream spray-type liquid supply method results in a large amount of polishing liquid splashing, and the actual proportion of abrasive participating in polishing is very low, causing serious waste, increasing production costs, and at the same time, the splashed polishing liquid contaminates the equipment and working environment.

[0004] Second, thermal damage is severe. High-speed friction generates a large amount of heat, and the cooling effect of spraying is limited. If cooling is not timely, the product may develop microcracks or even shatter due to thermal stress. This is especially true for brittle materials such as glass and ceramics, making it difficult to guarantee the yield rate.

[0005] Third, the consistency of eccentric outer circle machining is poor. For products that require eccentric outer circle machining (such as optical eccentric lenses, asymmetric rotating bodies, etc.), traditional equipment has difficulty in achieving precise eccentric positioning and adjustment, resulting in insufficient machining accuracy and consistency.

[0006] Fourth, poor polishing uniformity. Traditional polishing wheels make line contact or one-sided contact with the outer circle of the product, which easily leads to uneven polishing of the outer surface of the product, resulting in local over-polishing or under-polishing, affecting product quality. Summary of the Invention

[0007] The present invention aims to provide an immersion-type external cylindrical polishing device to solve the problems of low polishing medium utilization, poor cooling effect, severe thermal damage, poor consistency of eccentric external cylindrical processing, and poor polishing uniformity in the prior art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An immersion-type cylindrical polishing device includes: frame; The product fixture drive system is mounted on the frame and includes a drive assembly that can move up and down and an auxiliary tailstock. The drive assembly is equipped with a quick-clamp for clamping and driving the inverted product fixture to rotate. The lower plate moving system is movably mounted on the frame and located below the product fixture drive system; A brush roller assembly is disposed on the lower plate moving system. The brush roller assembly has a hollow cylindrical brush roller. The inner wall of the brush roller is provided with polishing brushes for accommodating and wrapping the product to be processed held by the product fixture driving system, so as to perform wrapping polishing on the outer circle of the product to be processed. The polishing liquid tank, located on the frame and below the brush roller assembly, is an open-top box structure used to contain the polishing liquid and to completely immerse the brush roller assembly and the product to be processed in the polishing liquid.

[0009] Furthermore, the inverted product fixture includes: Product mandrel, the outer circle of which matches the inner hole of the product to be processed; The product handle is fixed to one end of the product spindle. Two product pressure plates are sleeved on the product mandrel and are used to press the product to be processed on the product mandrel from opposite axial directions. A lock nut is threaded to the other end of the product spindle and is used to lock the product pressure plate.

[0010] Furthermore, the lower body movement system includes: A brush moving base plate is used to support the brush roller assembly; The lower plate positioning system is movably mounted on the frame and connected to the brush moving base plate, used to drive the brush moving base plate to move in the horizontal direction.

[0011] Furthermore, the lower plate positioning system includes: The brush moving positioning plate is movably mounted on the frame; An ultra-thin cylinder is fixedly mounted on the fine-tuning cylinder mounting plate of the brush moving positioning plate, and the piston rod of the ultra-thin cylinder is connected to the brush moving base plate for continuously applying thrust to make the brush moving base plate abut against the positioning reference surface. The positioning screw is used to lock the brush moving base plate after it has moved to a predetermined position. The fine-tuning mechanism is used to fine-tune the position of the brush moving base plate after the positioning screw is locked.

[0012] Furthermore, the brush roller assembly includes: The brush shaft, serving as the core of rotation, is connected to a power source at its upper end. The brush roller base is fixed on the brush shaft. The lower end of the brush roller is fixed to the brush roller base; The brush auxiliary shaft is located at the bottom end of the brush roller and is used to support the lower end of the brush roller.

[0013] Furthermore, the brush roller assembly also includes a rotary support system, the rotary support system comprising: A brush shaft sleeve is provided on the brush moving base plate, and a cross roller bearing is provided inside to support the upper end of the brush shaft rotation shaft; A brush auxiliary shaft mounting bracket is fixed to the brush moving base plate and connected to the brush auxiliary shaft rotating shaft through a deep groove ball bearing, used to support the lower end of the brush roller.

[0014] Furthermore, the power source driving the brush shaft to rotate is a variable frequency motor. The variable frequency motor transmits power to the brush shaft through a transmission assembly consisting of a drive wheel, a driven wheel, a multi-wedge belt, and a tension wheel assembly.

[0015] Furthermore, the driving component includes: Hollow fiber reducer; A drive motor is connected to the hollow reducer; The quick-clamp, connected to the hollow reducer via the output connecting plate, is used for automatically clamping and centering the inverted product fixture.

[0016] Furthermore, the bottom of the polishing liquid tank is inclined and is equipped with an inlet, an outlet, and a removable cleaning door.

[0017] Furthermore, the polishing brushes are arranged in a spiral shape and adhered to the inner wall of the brush roller.

[0018] Compared with the prior art, the present invention has the following beneficial effects: Because the brush roller assembly has a hollow cylindrical brush roller with polishing brushes on the inner wall, the product to be processed is inserted into the brush roller, and the inner wall brushes simultaneously contact the outer circle of the product from all sides, forming a 360-degree enveloping polishing without dead angles. Compared with traditional outer circle polishing, the contact is more uniform, the polishing efficiency is higher, and the surface consistency is better.

[0019] Because the entire brush roller and the product being processed are immersed in the polishing fluid, the flow of the polishing fluid between the inner brush and the product is smooth. Heat generated during the polishing process is rapidly absorbed by a large amount of polishing fluid and carried away by the flow, resulting in a cooling effect far superior to spraying methods. This completely solves the problem of micro-cracks or even breakage of the product caused by thermal stress. Simultaneously, immersion processing completely eliminates the splashing problem of traditional spraying methods. The polishing fluid is circulated within a closed tank, resulting in extremely high abrasive utilization and significantly reduced production costs.

[0020] The upper end of the brush roller uses a cross roller bearing to provide high rigidity and high rotational accuracy, while the lower end uses a deep groove ball bearing to provide stable support, effectively reducing rotational runout and ensuring polishing accuracy.

[0021] The lower plate movement system is responsible for large-scale, rapid adjustments, while the lower plate positioning system is responsible for precise eccentric adjustments. Ultra-thin cylinders continuously apply thrust to compensate for vibration and clearance, achieving an adjustment accuracy of up to 1mm, meeting the requirements of precision eccentric machining. The clear division of labor between the two systems ensures both operational efficiency and high precision.

[0022] The variable frequency motor, combined with the multi-wedge belt drive and tensioner assembly, ensures sufficient friction to transmit torque and also buffers the impact during motor start-up and shutdown, resulting in smooth transmission, low noise, and extended equipment life.

[0023] Using an internal hole positioning method, the product to be processed and the inverted product fixture form a rigid whole. Quick clamping and disassembly are achieved through a quick chuck, which is convenient to operate and has high positioning accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the immersion-type external cylindrical polishing equipment according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the product fixture driving system in an embodiment of the present invention.

[0026] Figure 3 This is a cross-sectional structural diagram of the product fixture driving system in an embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the lower plate moving system in an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the brush roller assembly in an embodiment of the present invention.

[0029] Figure 6 This is a schematic cross-sectional view of the brush roller assembly in an embodiment of the present invention. Figure 7 This is a schematic diagram of the polishing liquid tank in an embodiment of the present invention.

[0030] In the diagram, the markings are: 100-Frame; 200-Product jig drive system; 210-Drive assembly; 211-Quick chuck; 212-Hollow reducer; 213-Drive motor; 220-Auxiliary tailstock; 230-Inverted product jig; 231-Product spindle; 232-Product handle; 233-Product pressure plate; 234-Locking nut; 235-Loading / unloading auxiliary platform; 241-Servo motor; 242-Vertical guide rail; 300-Lower plate moving system; 310-Brush moving base plate; 320-Lower plate positioning system; 321-Brush moving positioning plate; 322-Ultra-thin cylinder; 323-Positioning screw; 324-Fine adjustment mechanism; 3241-Digital position display; 3 242-Fine-adjusting screw; 3243-Fine-adjusting screw bearing seat; 3244-Fine-adjusting nut; 3245-Fine-adjusting nut seat; 325-Ball head handle; 326-Horizontal guide rail; 400-Brush roller assembly; 410-Brush roller; 420-Polishing brush; 430-Brush shaft pivot; 440-Brush roller base; 450-Brush auxiliary shaft pivot; 460-Brush shaft sleeve; 470-Brush auxiliary shaft mounting bracket; 480-Variable frequency motor; 481-Motor base; 482-Drive wheel; 483-Driven wheel; 484-Multi-ribbed belt; 490-Tension wheel assembly; 500-Polishing liquid tank; 510-Liquid inlet; 520-Liquid outlet; 530-Cleaning door; 6-Product to be processed. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 7 As shown, the present invention discloses an immersion-type external cylindrical polishing device, including a frame 100, a product fixture driving system 200, a lower plate moving system 300, a brush roller assembly 400, and a polishing liquid tank 500.

[0033] The frame 100 is an integral support structure with guide rail mounting surfaces on the top and sides for mounting the product fixture drive system 200 and the lower plate moving system 300.

[0034] The product fixture drive system 200 is mounted on the frame 100 and includes a vertically movable drive assembly 210 and an auxiliary tailstock 220. The drive assembly 210 is equipped with a quick-release chuck 211 for clamping and driving the inverted product fixture 230 to rotate.

[0035] Specifically, such as Figure 2 and Figure 3As shown, the drive assembly 210 includes a hollow reducer 212, a drive motor 213, and a quick-release chuck 211. The drive motor 213 is connected to the hollow reducer 212, and the quick-release chuck 211 is connected to the hollow reducer 212 via an output connecting plate. The drive assembly 210 can move up and down along the vertical guide rail 242 under the drive of the servo motor 241: moving upwards allows for the replacement of the inverted product fixture 230, and moving downwards allows the inverted product fixture 230 to be inserted into the brush roller 410 and axially positioned.

[0036] The auxiliary tailstock 220 is a follow-up positioning pin structure, and the auxiliary drive assembly 210 positions the inverted product fixture 230. When the drive assembly 210 moves downward into place, the lower end of the inverted product fixture 230 is inserted into the auxiliary tailstock 220, and the auxiliary tailstock 220 rotates with the product fixture, providing stable lower end support.

[0037] like Figure 2 and Figure 3 As shown, the inverted product fixture 230 includes a product spindle 231, a product handle 232, two product pressure plates 233, and a locking nut 234.

[0038] The outer circle of the product mandrel 231 mates with the inner hole of the product 6 to be processed, using a fine clearance fit to ensure good coaxiality of the product in the radial direction. The product handle 232 is a ring-shaped handle, fixed to the upper end of the product mandrel 231 by a set screw, facilitating the operator's handling of the entire inverted product fixture 230. Two product pressure plates 233 are fitted onto the product mandrel 231, used to press the product 6 to be processed onto the product mandrel 231 from opposite axial directions. A locking nut 234, with a fine thread, connects to the lower end of the product mandrel 231 to lock the product pressure plates 233. The outer circle of the locking nut 234 has a wrench surface for easy manual tightening.

[0039] During assembly, the product handle 232 is inserted into the upper end of the product spindle 231 and fixed. A product pressure plate 233 is inserted from the lower end of the product spindle 231 and pushed to the step as a bottom support. The product to be processed 6 is inserted from the lower end of the product spindle 231 in sequence. Then, another product pressure plate 233 is inserted from the lower end of the product spindle 231 to press the end face of the product to be processed 6. Finally, the locking nut 234 is screwed in and gradually tightened so that the upper and lower product pressure plates 233 clamp the product and form a rigid whole.

[0040] When installing the product onto the equipment, the operator holds the product handle 232 and places the entire inverted product fixture 230 on the loading and unloading auxiliary platform 235. The quick clamp 211 of the drive component 210 automatically clamps the upper end of the inverted product fixture 230, and the auxiliary tailstock 220 positions the lower end of the inverted product fixture 230.

[0041] like Figure 1 and Figure 4 As shown, the lower plate movement system 300 is movably mounted on the frame 100, located below the product fixture drive system 200. The lower plate movement system 300 includes a brush moving base plate 310 and a lower plate positioning system 320.

[0042] The brush moving base plate 310 is used to support the brush roller assembly 400. The lower plate positioning system 320 is movably mounted on the frame 100 and connected to the brush moving base plate 310, and is used to drive the brush moving base plate 310 to move in the horizontal direction.

[0043] Specifically, such as Figure 4 The lower plate positioning system 320 shown includes a brush moving positioning plate 321, an ultra-thin cylinder 322, a positioning screw 323, and a fine-tuning mechanism 324.

[0044] The brush moving positioning plate 321 is movably mounted on the frame 100. The operator can push the brush moving positioning plate 321 along the horizontal guide rail 326 by using the ball head handle 325 mounted on the brush moving positioning plate 321 to achieve a wide range of position adjustments.

[0045] The ultra-thin cylinder 322 is fixedly mounted on the fine-tuning cylinder mounting plate of the brush moving positioning plate 321, and its piston rod is connected to the brush moving base plate 310. During equipment operation, the ultra-thin cylinder 322 remains extended, continuously applying thrust to keep the brush moving base plate 310 tightly against the positioning reference surface, eliminating the influence of horizontal guide rail 326 clearance, transmission clearance, and processing vibration on positioning. Even if the positioning screw 323 becomes slightly loose due to vibration during processing, the continuous thrust of the ultra-thin cylinder 322 can immediately compensate, preventing positional deviation.

[0046] The positioning screw 323 is installed on the brush moving positioning plate 321, and its axis direction is consistent with the moving direction of the brush moving base plate 310. It is used to lock the brush moving base plate 310 after it moves to the predetermined position. The screw is tightened by thread, which is simple in structure and intuitive in operation.

[0047] The fine-tuning mechanism 324 is mounted on the brush moving positioning plate 321 and arranged horizontally with the positioning screw 323. It is used to make minute and precise adjustments to the position in the Y-axis direction after coarse positioning and locking. The fine-tuning mechanism 324 includes a digital position display 3241, a fine-tuning screw 3242, a fine-tuning screw bearing seat 3243, a fine-tuning nut 3244, and a fine-tuning nut seat 3245. The fine-tuning screw bearing seat 3243 is mounted on the brush moving positioning plate 321, and the digital position display 3241 is mounted on the fine-tuning screw bearing seat 3243. The fine-tuning screw 3242 passes through the digital position display 3241 and the fine-tuning screw bearing seat 3243 in sequence and is connected to the fine-tuning nut 3244. The fine-tuning nut seat 3245 is mounted on the brush moving base plate 310, and the fine-tuning nut 3244 is fixedly connected to the fine-tuning nut seat 3245. During rotational adjustment, rotating the fine-tuning screw 3242 causes a small axial displacement of the brush moving base plate 310, which in turn drives the brush moving base plate 310 to achieve millimeter-level adjustment. The digital position display 3242 displays the displacement distance, and the adjustment accuracy can reach 1mm, meeting the requirements of precision eccentric machining.

[0048] The brush roller assembly 400 is mounted on the lower plate moving system 300. For example... Figure 5 and Figure 6 As shown, the brush roller assembly 400 has a hollow cylindrical brush roller 410, and the inner wall of the brush roller 410 is provided with a polishing brush 420 for accommodating and wrapping the product to be processed 6 held by the product fixture drive system 200, so as to perform wrapping polishing on the outer circle of the product to be processed 6.

[0049] The brush roller assembly 400 includes a brush shaft 430, a brush roller base 440, a brush roller 410, and a brush auxiliary shaft 450.

[0050] The brush shaft 430 serves as the core of rotation, with its upper end connected to a power source. The brush roller base 440 is fixed to the brush shaft 430. The lower end of the brush roller 410 is fixed to the brush roller base 440. The polishing brushes 420 are arranged in a spiral shape, made of wear-resistant rubber filaments, and firmly bonded to ensure they do not fall off under high-speed rotation and high-frequency vibration. The brush auxiliary shaft 450 is located at the bottom end of the brush roller 410 and is fixedly connected to it, serving to support the lower end of the brush roller 410.

[0051] The brush roller assembly 400 also includes a rotary support system. The rotary support system includes a brush shaft sleeve 460 and a brush auxiliary shaft mounting bracket 470.

[0052] The brush shaft sleeve 460 is mounted on the brush moving base plate 310, and has a cross roller bearing inside to support the upper end of the brush shaft rotating shaft 430. The cross roller bearing has high rigidity and high rotational accuracy, can withstand axial loads, and ensures that the brush roller can still rotate smoothly when subjected to uneven polishing resistance.

[0053] The brush auxiliary shaft mounting bracket 470 is fixed to the brush moving base plate 310 and connected to the brush auxiliary shaft rotating shaft 450 via a deep groove ball bearing, used to support the lower end of the brush roller 410. The deep groove ball bearing mainly bears the radial load, ensuring the rotational freedom of the lower end of the brush roller.

[0054] The power source driving the brush shaft 430 to rotate is a variable frequency motor 480. The variable frequency motor 480 is mounted on a motor base 481 on the brush moving base plate 310, and transmits power to the brush shaft 430 through a transmission assembly.

[0055] The transmission assembly includes a drive pulley 482, a driven pulley 483, and a multi-ribbed belt 484. The drive pulley 482 is mounted on the output shaft of the variable frequency motor 480, the driven pulley 483 is mounted on the upper end of the brush shaft 430, and the multi-ribbed belt 484 connects the drive pulley 482 and the driven pulley 483.

[0056] In addition, a tensioning wheel assembly 490 is provided, which is adjustablely mounted on the brush moving base plate 310 and abuts against the outer side of the slack side of the multi-wedge belt 484. It is used to adjust the belt tension and ensure smooth transmission without slippage during frequent starts and stops or load changes.

[0057] The polishing fluid tank 500 is mounted on the frame 100 and located below the brush roller assembly 400. For example... Figure 1 and Figure 7 As shown, the polishing liquid tank 500 is an open-top box structure made of corrosion-resistant SUS304 material, with sufficient depth and volume to ensure that the brush roller 410 and the workpiece processing area can be completely immersed.

[0058] The bottom of the polishing fluid tank 500 is sloped to facilitate the deposition and centralized cleaning of polishing debris. The polishing fluid tank 500 is equipped with an inlet 510 and an outlet 520 for connection to the polishing fluid circulation system. A removable cleaning door 530 is located on the side for periodic cleaning of glass shards deposited at the bottom.

[0059] During operation, by controlling the flow rate of the inlet and outlet liquids to maintain a stable liquid level in the tank, a continuous immersion effect is maintained. At the same time, the flowing polishing liquid can promptly remove the heat and abrasive debris generated during polishing.

[0060] Work process The working process of the immersion-type external cylindrical polishing equipment in this embodiment is as follows: First, the operator installs the product 6 to be processed onto the inverted product fixture 230. Specifically, the product handle 232 is inserted into the upper end of the product spindle 231 and fixed. A product pressure plate 233 is inserted from the lower end of the product spindle 231 and pushed to the step. Then, multiple products 6 to be processed are sequentially inserted from the lower end of the product spindle 231. Another product pressure plate 233 is then inserted from the lower end of the product spindle 231 to press down on the end face of the product 6 to be processed. Finally, the locking nut 234 is screwed in and gradually tightened so that the upper and lower product pressure plates 233 clamp the product 6 to be processed, forming a rigid whole.

[0061] Then, the operator holds the product handle 232 and places the entire inverted product fixture 230 on the loading / unloading auxiliary platform 235. The drive component 210 of the product fixture drive system 200 moves upward, and the quick-clamp 211 automatically clamps the upper end of the inverted product fixture 230, while the auxiliary tailstock 220 positions the lower end of the inverted product fixture 230. Subsequently, the drive component 210 moves downward, feeding the inverted product fixture 230 and the product 6 to be processed on it into the internal cavity of the brush roller 410.

[0062] Next, the equipment is started. Polishing liquid is injected into the polishing liquid tank 500, and the liquid level ensures that the brush roller 410 and the product 6 to be processed are completely submerged. The variable frequency motor 480 drives the brush roller 410 to rotate, while the product fixture drive system 200 drives the inverted product fixture 230 and the product 6 to be processed on it to rotate, with the two rotating in opposite directions. The spiral polishing brush on the inner wall of the brush roller 410 performs 360° wrap-around polishing on the outer circle of the product 6 to be processed. During the polishing process, the ultra-thin cylinder 322 continuously applies thrust, making the brush moving base plate 310 closely adhere to the positioning reference surface, ensuring the stability of the polishing position. If it is necessary to process an eccentric product, the eccentricity between the brush roller 410 and the rotation axis of the product 6 to be processed can be adjusted by the positioning screw 323 and the fine adjustment mechanism 324 to achieve precision eccentric polishing.

[0063] The polishing slurry circulation system maintains the flow and stability of the polishing slurry level through the inlet 510 and outlet 520, promptly removing heat and abrasive debris. After polishing is completed, the product fixture drive system 200 rises, and the operator removes the inverted product fixture 230 to unload the polished product.

[0064] The immersion-type cylindrical polishing equipment provided by this invention has a compact structure, is easy to operate, and offers high polishing precision. It is particularly suitable for the cylindrical polishing of brittle materials such as glass, ceramics, and sapphire, and is also suitable for the cylindrical polishing of metallic materials. This equipment can be widely used in the polishing of optical components, electronic devices, precision mechanical parts, and other fields.

[0065] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An immersion-type external cylindrical polishing device, characterized in that, include: frame; The product fixture drive system is mounted on the frame and includes a drive assembly that can move up and down and an auxiliary tailstock. The drive assembly is equipped with a quick-clamp for clamping and driving the inverted product fixture to rotate. The lower plate moving system is movably mounted on the frame and located below the product fixture drive system; A brush roller assembly is disposed on the lower plate moving system. The brush roller assembly has a hollow cylindrical brush roller. The inner wall of the brush roller is provided with polishing brushes for accommodating and wrapping the product to be processed held by the product fixture driving system, so as to perform wrapping polishing on the outer circle of the product to be processed. The polishing liquid tank, located on the frame and below the brush roller assembly, is an open-top box structure used to contain the polishing liquid and to completely immerse the brush roller assembly and the product to be processed in the polishing liquid.

2. The immersion-type external cylindrical polishing equipment according to claim 1, characterized in that, The inverted product fixture includes: Product mandrel, the outer circle of which matches the inner hole of the product to be processed; The product handle is fixed to one end of the product spindle. Two product pressure plates are sleeved on the product mandrel and are used to press the product to be processed on the product mandrel from opposite axial directions. A lock nut is threaded to the other end of the product spindle and is used to lock the product pressure plate.

3. The immersion-type external cylindrical polishing equipment according to claim 1, characterized in that, The lower body moving system includes: A brush moving base plate is used to support the brush roller assembly; The lower plate positioning system is movably mounted on the frame and connected to the brush moving base plate, used to drive the brush moving base plate to move in the horizontal direction.

4. The immersion-type external cylindrical polishing equipment according to claim 3, characterized in that, The lower plate positioning system includes: The brush moving positioning plate is movably mounted on the frame; An ultra-thin cylinder is fixedly mounted on the fine-tuning cylinder mounting plate of the brush moving positioning plate, and the piston rod of the ultra-thin cylinder is connected to the brush moving base plate for continuously applying thrust to make the brush moving base plate abut against the positioning reference surface. The positioning screw is used to lock the brush moving base plate after it has moved to a predetermined position. The fine-tuning mechanism is used to fine-tune the position of the brush moving base plate after the positioning screw is locked.

5. The immersion-type external cylindrical polishing equipment according to claim 3, characterized in that, The brush roller assembly includes: The brush shaft, serving as the core of rotation, is connected to a power source at its upper end. The brush roller base is fixed on the brush shaft. The lower end of the brush roller is fixed to the brush roller base; The brush auxiliary shaft is located at the bottom end of the brush roller and is used to support the lower end of the brush roller.

6. The immersion-type external cylindrical polishing equipment according to claim 5, characterized in that, The brush roller assembly further includes a rotary support system, which comprises: A brush shaft sleeve is provided on the brush moving base plate, and a cross roller bearing is provided inside to support the upper end of the brush shaft rotation shaft; A brush auxiliary shaft mounting bracket is fixed to the brush moving base plate and connected to the brush auxiliary shaft rotating shaft through a deep groove ball bearing, used to support the lower end of the brush roller.

7. The immersion-type external cylindrical polishing equipment according to claim 5, characterized in that, The power source driving the brush shaft to rotate is a variable frequency motor. The variable frequency motor transmits power to the brush shaft through a transmission assembly consisting of a drive wheel, a driven wheel, a multi-wedge belt, and a tension wheel assembly.

8. The immersion-type external cylindrical polishing equipment according to claim 1, characterized in that, The driving component includes: Hollow fiber reducer; A drive motor is connected to the hollow reducer; The quick-clamp, connected to the hollow reducer via the output connecting plate, is used for automatically clamping and centering the inverted product fixture.

9. The immersion-type external cylindrical polishing equipment according to claim 1, characterized in that, The bottom of the polishing liquid tank is inclined and is equipped with an inlet, an outlet, and a removable cleaning door.

10. The immersion-type external cylindrical polishing equipment according to claim 1, characterized in that, The polishing brushes are arranged in a spiral shape and adhered to the inner wall of the brush roller.

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