Polishing and grinding equipment for metal mobile phone shell

Abstract

The invention relates to the technical field of mobile phone shell polishing and grinding, and discloses metal mobile phone shell polishing and grinding equipment which comprises a working machine table and a connecting plate, and a follow-up smearing mechanism is arranged on the lower surface of the connecting plate. According to the polishing and grinding equipment for the metal mobile phone shell, rotation power of a polishing and grinding wheel is directly converted into an opening and closing control signal of a paste supply valve through a main body part composed of a driving motor, a transmission shaft, a first gear, a first rack, a connecting spring, a valve and the like, and it is ensured that supply of polishing paste is strictly synchronous with the grinding action; the problem that the paste supply time is not matched with the polishing rhythm due to manual smearing or independent electric liquid supply is solved, delay and errors existing in an electronic control system are eliminated, the supply amount and the consumption amount of the polishing paste reach dynamic balance, waste caused by excessive paste or polishing quality fluctuation caused by insufficient paste is reduced, and the polishing quality is improved. Therefore, the process stability is improved, and meanwhile the higher material utilization rate is achieved.

Description

Technical Field

[0001] This invention relates to the field of mobile phone case polishing and grinding technology, specifically to a metal mobile phone case polishing and grinding device. Background Technology

[0002] Metal phone cases are typically made of materials such as aluminum alloy and stainless steel through precision processing. With their unique cool texture, excellent structural strength and heat dissipation performance, they have become the choice of users who pursue quality and individuality. They present rich colors through processes such as anodizing. During their production, they need to undergo corresponding polishing and grinding operations. Polishing and grinding of metal phone cases is a delicate process that goes from repair to renewal.

[0003] In existing technologies, when polishing metal phone cases, rough polishing is performed using a polishing wheel or abrasive belt to remove obvious scratches and burrs. Then, a finer polishing wheel is replaced and polishing paste is applied for fine polishing to enhance the gloss. Finally, the process is completed through ultrasonic cleaning and quality inspection.

[0004] When applying polishing compound, it needs to be applied evenly to the polishing wheel or workpiece surface. Manual application is uneven, and electric liquid supply pumps require power and control. They cannot link the application of polishing compound with grinding and polishing, which increases energy consumption and the complexity of the control system. More importantly, it disrupts the dynamic balance of the polishing process, causing fluctuations in polishing effect, material waste, and may cause surface scratches or inconsistent gloss due to improper timing of compound replenishment.

[0005] While it can solve the problem of applying polishing compound, the fixed application position of the polishing compound during application can lead to the following: the applied area becomes too soft and wears out too quickly due to long-term saturation of the compound, while other areas of the wheel surface suffer from insufficient supply because the compound relies entirely on its own diffusion. Ultimately, this results in uneven wear of the polishing wheel, causing it to become irregular in shape and severely affecting the uniformity of the polished surface. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a metal mobile phone case polishing and grinding device, which has the advantages of more even application of polishing paste and avoiding prolonged application of polishing paste to the same area, thus solving the problems mentioned in the background art.

[0007] The present invention provides the following technical solution: a metal mobile phone case polishing and grinding equipment, including a worktable and a connecting plate, wherein a follow-up coating mechanism is provided on the lower surface of the connecting plate; The power output end of the follow-up coating mechanism is provided with a control switch mechanism that converts polishing and grinding power into control force, and the power output end of the control switch mechanism is provided with a coating movement mechanism that converts translational force into movement force. The follow-up coating mechanism consists of a control switch mechanism and a coating movement mechanism.

[0008] Preferably, the control switch mechanism includes a drive motor, a transmission shaft, a first gear, a fixed plate, a connecting spring, a telescopic rod, a first rack, a receiving block, a second rack, a valve stem, and a second gear. The bottom of the drive motor is fixedly installed on the lower surface inside the sliding frame. One end of the transmission shaft is fixedly connected to one end of the drive motor output shaft. The inside of the first gear is fixedly installed on the outer surface of the transmission shaft. The upper surface of the fixed plate is fixedly installed on the lower surface of the sliding frame. One end of the connecting spring is fixedly installed on the front of the fixed plate. One end of the telescopic rod is fixedly installed on the front of the fixed plate. The back of the first rack is fixedly installed on the other end of the telescopic rod and the connecting spring. The left side of the receiving block is fixedly installed on the right side of the first rack. The lower surface of the second rack is fixedly connected to the upper surface of the receiving block. The outer surface of the second gear meshes with the upper surface of the second rack. The outer surface of the valve stem is fixedly installed on the inside of the second gear.

[0009] Preferably, the coating moving mechanism includes a delivery pipe, a vertical frame, a connecting frame, and a nozzle. The outer surface of the delivery pipe is installed on the upper surface inside the workbench, and the delivery pipe is not in contact with the workbench. The right side of the nozzle is fixedly installed to one end of the delivery pipe. The back of the connecting frame is fixedly installed to the outer surface of the delivery pipe. The back of the vertical frame is fixedly connected to the front of the connecting frame.

[0010] Preferably, an extension plate is fixedly installed on the right side of the sliding frame, and a storage bin is installed on the lower surface of the extension plate.

[0011] Preferably, the outlet of the storage tank is equipped with a valve, and the internal control end of the valve is installed at one end of the valve stem.

[0012] Preferably, the upper surface of the vertical frame is fixedly connected to the lower surface of the receiving block.

[0013] Preferably, a control panel is installed at the top front of the machine tool, and an electric slide rail is installed at the top inside the machine tool. A sliding plate is slidably connected to the outer surface of the electric slide rail, and a groove is formed inside the sliding plate.

[0014] Preferably, a receiving plate is fixedly installed on the front of the inside of the machine tool, and a hydraulic cylinder is installed on the upper surface of the receiving plate.

[0015] Preferably, a connecting plate is installed at one end of the hydraulic cylinder output shaft, and an electric slide rail is installed on the lower surface of the connecting plate. The outer surface of the electric slide rail is slidably connected to the inner wall of the top of the sliding frame.

[0016] Preferably, a polishing wheel is detachably mounted on one end of the drive shaft, and the side of the polishing wheel is aligned with the outlet of the nozzle.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This metal mobile phone case polishing and grinding equipment, through its main body consisting of a drive motor, transmission shaft, gear I, rack I, connecting spring, and valves, directly converts the rotational power of the polishing wheel into an opening and closing control signal for the polishing paste supply valve. This ensures that the supply of polishing paste is strictly synchronized with the grinding action, solving the problem of mismatch between the timing of paste supply and the polishing rhythm caused by manual application or independent electric liquid supply. It also eliminates the delays and errors present in the electronic control system, achieving a dynamic balance between the replenishment and consumption of polishing paste. This reduces waste caused by excess paste or fluctuations in polishing quality caused by insufficient paste, thereby improving process stability and achieving higher material utilization.

[0018] 2. This metal mobile phone case polishing and grinding equipment, through the mechanical connection of the rack, receiving block, vertical frame, connecting frame and nozzle, enables the paste supply nozzle to perform synchronous horizontal reciprocating motion with the opening and closing action of the valve, so that the polishing paste can be evenly covered on the entire working surface of the rotating polishing wheel. This effectively avoids the problem of uneven wear and excessive softness of the polishing wheel due to local long-term paste saturation, ensuring uniform wear of the wheel surface and maintaining its optimal working shape.

[0019] 3. This metal phone case polishing and grinding equipment allows for precise adjustment of the workpiece through programmed control of the electric slide rail one, hydraulic cylinder, and electric slide rail two via the control panel. Its integrated and automated design not only reduces reliance on operator experience and minimizes quality inconsistencies caused by human intervention, but more importantly, it provides a flexible solution for processing metal phone cases of different models with complex curved surfaces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure viewed from below; Figure 3 For the present invention Figure 1 A top-view structural diagram; Figure 4 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 For the present invention Figure 4 A schematic diagram of the structure viewed from below; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B.

[0021] In the diagram: 1. Workbench; 2. Control panel; 3. Electric slide rail one; 4. Sliding plate; 5. Groove; 6. Support plate; 7. Hydraulic cylinder; 8. Connecting plate; 9. Electric slide rail two; 10. Sliding frame; 11. Drive motor; 12. Transmission shaft; 13. Gear one; 14. Fixing plate; 15. Connecting spring; 16. Telescopic rod; 17. Rack one; 18. Support block; 19. Rack two; 20. Extension plate; 21. Storage hopper; 22. Valve; 23. Valve stem; 24. Conveying pipe; 25. Vertical frame; 26. Connecting frame; 27. Nozzle; 28. Polishing wheel; 29. ​​Gear two. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 , Figure 4 and Figure 5 A metal mobile phone case polishing and grinding equipment includes a worktable 1 and a connecting plate 8, and a follow-up coating mechanism is provided on the lower surface of the connecting plate 8. The power output end of the follow-up coating mechanism is equipped with a control switch mechanism that converts polishing and grinding rotational power into control force, and the power output end of the control switch mechanism is equipped with a coating moving mechanism that converts translational force into moving force. The follow-up coating mechanism consists of a control switch mechanism and a coating movement mechanism. The control switch mechanism includes a drive motor 11, a transmission shaft 12, a first gear 13, a fixed plate 14, a connecting spring 15, a telescopic rod 16, a first rack 17, a receiving block 18, a second rack 19, a valve stem 23, and a second gear 29. The bottom of the drive motor 11 is fixedly installed on the lower surface inside the sliding frame 10. One end of the transmission shaft 12 is fixedly connected to one end of the output shaft of the drive motor 11. The inside of the first gear 13 is fixedly installed on the outer surface of the transmission shaft 12. The upper surface of the fixed plate 14 is fixedly installed on the lower surface of the sliding frame 10. One end of the connecting spring 15 is fixedly installed on the front of the fixed plate 14. One end of the telescopic rod 16 is fixedly installed on the front of the fixed plate 14. The back of the rack 17 is fixedly installed on the other end of the telescopic rod 16 and the connecting spring 15. The left side of the receiving block 18 is fixedly installed on the right side of the rack 17. The lower surface of the rack 19 is fixedly connected to the upper surface of the receiving block 18. The outer surface of the gear 29 meshes with the upper surface of the rack 19. The outer surface of the valve stem 23 is fixedly installed inside the gear 29. An extension plate 20 is fixedly installed on the right side of the sliding frame 10. A storage tank 21 is installed on the lower surface of the extension plate 20. A valve 22 is installed at the outlet of the storage tank 21. The internal control end of the valve 22 is installed on one end of the valve stem 23.

[0024] Specifically, through the follow-up coating mechanism, in conjunction with the control switch mechanism and the coating movement mechanism, the rotational force for polishing can be converted into control force, and the translational force can be converted into movement force, thus achieving precise control of the coating process according to the actual needs of polishing. In the control switch mechanism, the drive motor 11 serves as the core power source. Its output shaft drives the transmission shaft 12 to rotate, which in turn causes the gear 13, fixedly mounted on the transmission shaft 12, to rotate. The gear 13 and the rack 17 cooperate to convert rotational power into linear translational force. Based on the different speeds and directions of the drive motor 11, the movement distance and speed of the rack 17 can be controlled, providing an accurate power basis for subsequent coating control. This ensures that the entire coating process can proceed according to preset requirements, improving the quality and stability of polishing and grinding the metal phone case. The fixed plate 14 is a connecting... The connecting spring 15 and the telescopic rod 16 provide a stable mounting base. Together, they act on the rack 17, ensuring its stability during movement and providing cushioning and resetting. When the gear 13 drives the rack 17, the connecting spring 15 absorbs some of the impact force, preventing damage due to excessive instantaneous power. The telescopic rod 16 restricts the direction of movement of the rack 17, preventing deviation. This ensures the stability and reliability of the entire control switch mechanism, extending the equipment's service life. Furthermore, rack 17 drives rack 2 19 to move via receiving block 18, and rack 2 19 meshes with gear 2 29 for transmission, ultimately driving valve stem 23 to rotate. This allows the minute rotation of drive motor 11 to be amplified and converted through a series of mechanical structures, precisely controlling the opening and closing degree of valve 22. By adjusting the rotation angle of drive motor 11, the number of rotations of valve stem 23 can be precisely controlled, thereby accurately adjusting the opening size of valve 22, achieving precise flow control of polishing and grinding auxiliary materials, avoiding material waste, and ensuring uniform coating effect.

[0025] Please see Figure 1 , Figure 6 and Figure 7 The coating moving mechanism includes a delivery pipe 24, a vertical frame 25, a connecting frame 26, and a nozzle 27. The outer surface of the delivery pipe 24 is installed on the upper surface inside the workbench 1, and the delivery pipe 24 is not in contact with the workbench 1. The right side of the nozzle 27 is fixedly installed on one end of the delivery pipe 24. The back of the connecting frame 26 is fixedly installed on the outer surface of the delivery pipe 24. The back of the vertical frame 25 is fixedly connected to the front of the connecting frame 26. The upper surface of the vertical frame 25 is fixedly connected to the lower surface of the receiving block 18.

[0026] Specifically, the coating and moving mechanism is fixedly connected to the receiving block 18 via the vertical frame 25. The receiving block 18 is then linked to related components such as the rack-and-pinion 17 in the control switch mechanism. This allows the coating and moving mechanism to move precisely according to the power output of the control switch mechanism, thereby driving the delivery pipe 24 and the nozzle 27 to the specific location on the metal phone case that needs polishing. This achieves precise positioning and ensures that the polishing auxiliary material is accurately applied to the target area, improving the targeting and effectiveness of the polishing process. The delivery pipe 24 is fixedly connected to the vertical frame 25 via the connecting bracket 26, and the vertical frame 25 is then connected to the receiving block 18. During operation, even if the equipment is subjected to certain vibrations or external impacts, the delivery pipe 24 and the nozzle 27 can maintain a relatively stable position without shaking or shifting, ensuring the stability and uniformity of the coating process, which is beneficial to improving the quality of polishing and grinding of metal phone cases. As a delivery channel for polishing and grinding auxiliary materials, the reasonable installation position and structural design of the delivery pipe 24 can ensure that the material is smoothly delivered to the nozzle 27. The nozzle 27 is fixedly installed at one end of the delivery pipe 24 and can spray the material onto the surface of the metal phone case with appropriate pressure and angle to achieve efficient coating.

[0027] Please see Figure 1 , Figure 2 and Figure 3A control panel 2 is installed at the top front of the workbench 1. An electric slide rail 3 is installed at the top inside the workbench 1. A sliding plate 4 is slidably connected to the outer surface of the electric slide rail 3. A groove 5 is opened inside the sliding plate 4. A receiving plate 6 is fixedly installed on the front inside the workbench 1. A hydraulic cylinder 7 is installed on the upper surface of the receiving plate 6. A connecting plate 8 is installed at one end of the output shaft of the hydraulic cylinder 7. An electric slide rail 9 is installed on the lower surface of the connecting plate 8. The outer surface of the electric slide rail 9 is slidably connected to the inner wall of the top of the sliding frame 10. A polishing wheel 28 is detachably installed at one end of the transmission shaft 12. The side of the polishing wheel 28 is aligned with the discharge port of the nozzle 27.

[0028] Specifically, a control panel 2 is installed at the top front of the workbench 1, providing operators with an intuitive and convenient interface. Through the control panel 2, operators can easily input various operating commands, such as starting and stopping the equipment, and adjusting operating parameters, such as the sliding speed of electric slide rail 3 and electric slide rail 9, and the extension and retraction force of the hydraulic cylinder 7. This enables intelligent control of the entire polishing process, improving operational convenience and work efficiency, and reducing human error. An electric slide rail 3, installed at the top of the workbench 1, is slidably connected to a sliding plate 4. A groove 5 inside the sliding plate 4 can be used to place workpieces such as metal phone cases. The electric slide rail 3 can drive the sliding plate 4 to move precisely in the horizontal direction, thus accurately transporting the workpiece to the designated processing position. This makes the workpiece position adjustment more flexible and precise, meeting the positioning requirements of metal phone cases of different specifications and shapes, and providing a good foundation for subsequent polishing and grinding processes. A receiving plate 6 is fixedly installed on the front of the workbench 1. A hydraulic cylinder 7 installed on its upper surface provides stable and adjustable output pressure. The output shaft of the hydraulic cylinder 7 is connected to a connecting plate 8. By controlling the extension and retraction of the hydraulic cylinder 7, the pressure applied to the metal phone case by the connecting plate 8 and the components installed below it, such as the follow-up coating mechanism and the polishing wheel 28, can be precisely controlled. This stable pressure control ensures uniform pressure during polishing and grinding, avoiding scratches and uneven grinding on the phone case surface due to excessive or insufficient pressure, thus improving processing quality. Furthermore, the electric slide rail 29 installed on the lower surface of the connecting plate 8 is slidably connected to the inner wall of the top of the sliding frame 10, so that the sliding frame 10 can move in a direction perpendicular to the electric slide rail 3. Combined with the horizontal movement of the electric slide rail 3 and the vertical movement of the hydraulic cylinder 7, the polishing wheel 28 can move flexibly in three-dimensional space. The polishing wheel 28, which can be detachably installed at one end of the drive shaft 12, is aligned with the outlet of the nozzle 27. This design allows the nozzle 27 to spray the polishing auxiliary material on the contact part between the polishing wheel 28 and the metal mobile phone case in a timely and accurate manner during the polishing process.

[0029] In operation, when polishing of the phone case is required, the drive motor 11 starts, and its output shaft drives the transmission shaft 12 and the polishing wheel 28 and gear 13 fixed thereon to rotate together. The polishing wheel 28 performs the main polishing operation, while the rotation of gear 13 becomes the mechanical signal source for controlling the paste supply. The rotating gear 13 meshes with the rack 17. At the start of the polishing operation, gear 13 pushes the rack 17 backward, moving it towards the fixed plate 14. The compression of the connecting spring 15 and the retraction of the telescopic rod 16 cause rack 17 to move synchronously with rack 29 via the receiving block 18. Rack 29 drives the gear 29 it meshes with to rotate, which in turn drives the valve stem 23 to rotate, thereby opening the valve 22 at the bottom of the storage tank 21, and the polishing paste begins to flow out. When the continuous teeth of gear 13 disengage from rack 17, the compressed connecting spring 15 releases its elasticity, pushing rack 17 and rack 29 back to their original positions, thus causing the gears to... The valve stem 23 and the second valve 29 rotate in opposite directions to close the valve 22 and stop the paste supply. At the same time as the paste supply is turned on, the receiving block 18, which is fixedly connected to the rack 17, also has a vertical frame 25 fixed on its lower surface. Therefore, when the rack 17 moves back and forth, it will drive the connecting frame 26, the delivery pipe 24, and the nozzle 27 fixed to it to move back and forth in the horizontal direction through the receiving block 18 and the vertical frame 25. The polishing paste flowing out from the valve 22 is sprayed out from the nozzle 27, which moves left and right, through the delivery pipe 24, thus forming a dynamic coating band on the entire working width of the high-speed rotating polishing wheel 28. The sliding frame 10 is installed on the connecting plate 8, which can be driven by the hydraulic cylinder 7, through the electric slide rail 29. At the same time, the sliding plate 4, which holds the mobile phone case, can be driven by the electric slide rail 3. By coordinating the actions of the hydraulic cylinder 7, the electric slide rail 3, and the electric slide rail 29 through the control panel 2, the three-dimensional relative motion trajectory between the polishing wheel 28 and the mobile phone case workpiece can be precisely controlled to complete the polishing of complex curved surfaces.

[0030] The specific components of this equipment can be configured as follows: Control panel 2 uses a human-machine interface integrating a Siemens S7-1200 series PLC and a Weintek 10-inch touchscreen; electric slide rail 1 3 and electric slide rail 2 9 use HIWIN Technologies MGN series high-precision linear modules; hydraulic cylinder 7 uses Airtac standard stroke cylinders with SMC proportional valves for precise pressure control; drive motor 11 uses Delta ECMA series servo motors; polishing and grinding wheels 28 use diamond-coated fiber wheels of different grit sizes according to process requirements. Regarding power supply, all electric and electrical control components are connected to the equipment's electrical cabinet via the main power supply, and the PLC controls the power supply through relays. The electrical components and servo drives are uniformly powered and managed. During linkage operation, after the operator sets the program through the control panel 2, the PLC first drives the electric slide rail 1 3 and electric slide rail 2 9 to move together, adjusting the workpiece and polishing wheel 28 to the initial processing position. Then, the hydraulic cylinder 7 presses the workpiece against the polishing wheel with a preset pressure. At the same time, the PLC sends a command to start the drive motor 11. While the motor drives the polishing wheel 28 to rotate at high speed for polishing, the speed signal fed back by its encoder will serve as a trigger condition. The PLC controls the valve 22 to open and close synchronously and periodically, thereby realizing the precise linkage between the supply of polishing paste and the polishing action.

[0031] It should be noted that the scope of protection of this invention does not involve improvements to the internal structure and methods; furthermore, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal mobile phone case polishing and grinding equipment, characterized in that: It includes a worktable (1) and a connecting plate (8), and the lower surface of the connecting plate (8) is provided with a follow-up coating mechanism; The power output end of the follow-up coating mechanism is provided with a control switch mechanism that converts polishing and grinding power into control force, and the power output end of the control switch mechanism is provided with a coating movement mechanism that converts translational force into movement force. The follow-up coating mechanism consists of a control switch mechanism and a coating movement mechanism.

2. The metal mobile phone case polishing and grinding equipment according to claim 1, characterized in that: The control switch mechanism includes a drive motor (11), a transmission shaft (12), a first gear (13), a fixed plate (14), a connecting spring (15), a telescopic rod (16), a first rack (17), a receiving block (18), a second rack (19), a valve stem (23), and a second gear (29). The bottom of the drive motor (11) is fixedly installed on the lower surface inside the sliding frame (10). One end of the transmission shaft (12) is fixedly connected to one end of the output shaft of the drive motor (11). The interior of the first gear (13) is fixedly installed on the outer surface of the transmission shaft (12). The upper surface of the fixed plate (14) is fixedly installed on the lower surface of the sliding frame (10). The surface is fixedly installed, one end of the connecting spring (15) is fixedly installed to the front of the fixing plate (14), one end of the telescopic rod (16) is fixedly installed to the front of the fixing plate (14), the back of the rack one (17) is fixedly installed to the other end of the telescopic rod (16) and the connecting spring (15), the left side of the receiving block (18) is fixedly installed to the right side of the rack one (17), the lower surface of the rack two (19) is fixedly connected to the upper surface of the receiving block (18), the outer surface of the gear two (29) meshes with the upper surface of the rack two (19), and the outer surface of the valve stem (23) is fixedly installed to the inside of the gear two (29).

3. The metal mobile phone case polishing and grinding equipment according to claim 1, characterized in that: The coating moving mechanism includes a delivery pipe (24), a vertical frame (25), a connecting frame (26), and a nozzle (27). The outer surface of the delivery pipe (24) is installed on the upper surface inside the workbench (1), and the delivery pipe (24) is not in contact with the workbench (1). The right side of the nozzle (27) is fixedly installed on one end of the delivery pipe (24). The back side of the connecting frame (26) is fixedly installed on the outer surface of the delivery pipe (24). The back side of the vertical frame (25) is fixedly connected to the front side of the connecting frame (26).

4. The metal mobile phone case polishing and grinding equipment according to claim 2, characterized in that: An extension plate (20) is fixedly installed on the right side of the sliding frame (10), and a storage bucket (21) is installed on the lower surface of the extension plate (20).

5. The metal mobile phone case polishing and grinding equipment according to claim 4, characterized in that: A valve (22) is installed at the outlet of the storage tank (21), and the internal control end of the valve (22) is installed at one end of the valve stem (23).

6. The metal mobile phone case polishing and grinding equipment according to claim 3, characterized in that: The upper surface of the vertical frame (25) is fixedly connected to the lower surface of the receiving block (18).

7. The metal mobile phone case polishing and grinding equipment according to claim 1, characterized in that: The workbench (1) has a control panel (2) installed on the top front. The workbench (1) has an electric slide rail (3) installed on the top inside. The outer surface of the electric slide rail (3) is slidably connected to a sliding plate (4). The sliding plate (4) has a groove (5) inside.

8. The metal mobile phone case polishing and grinding equipment according to claim 1, characterized in that: A receiving plate (6) is fixedly installed on the front of the inside of the workbench (1), and a hydraulic cylinder (7) is installed on the upper surface of the receiving plate (6).

9. The metal mobile phone case polishing and grinding equipment according to claim 8, characterized in that: A connecting plate (8) is installed at one end of the output shaft of the hydraulic cylinder (7), and an electric slide rail (9) is installed on the lower surface of the connecting plate (8). The outer surface of the electric slide rail (9) is slidably connected to the inner wall of the top of the sliding frame (10).

10. A metal mobile phone case polishing and grinding equipment according to claim 2, characterized in that: A polishing wheel (28) can be detachably installed at one end of the drive shaft (12), and the side of the polishing wheel (28) is aligned with the outlet of the nozzle (27).

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