A multi-station numerical control (CNC) machining tool for mobile phone middle plate

Abstract

The application belongs to the technical field of numerical control machining, and particularly discloses a mobile phone middle plate multi-station numerical control CNC machining machine tool, which comprises a machine tool body and a rocker arm, both ends of the rocker arm are fixed with connecting shafts, the two connecting shafts are correspondingly and rotationally arranged on the inner walls of the two sides of the machine tool body, the top of the rocker arm is provided with two water drainage grooves, one end of each of the two water drainage grooves is correspondingly penetrated to the outside of the rocker arm, and the inner bottom surfaces of the two water drainage grooves are both provided with rectangular grooves. After the plate is adsorbed and fixed, the gap between the top conical surface of the conical block and the bottom of the boss block is used for buffering in the cylindrical groove, so that the liquid permeating into the cylindrical groove can be gathered in the gap between the top of the conical block and the cylindrical groove, and cannot enter the grid openings on the boss block, so that the negative pressure adsorption is not affected, and when reset subsequently, the liquid accumulated in the cylindrical groove can be pushed out and discharged through the conical block, so that the purpose of cleaning is achieved.

Description

Technical Field

[0001] This invention relates to the field of CNC machining technology, and in particular to a multi-station CNC machining machine tool for mobile phone mid-plates. Background Technology

[0002] The mobile phone mid-plate is a bracket used to install electrical components inside the mobile phone and to divide the internal space of the mobile phone. During the production of the mobile phone mid-plate, CNC machine tools are used to cut the plate to make the plate into the required specific shape. Currently, multi-station CNC machine tools require pneumatic chucks to adhere and fix the bottom of the sheet metal before machining to prevent it from shaking during subsequent cutting. However, the pneumatic chucks are located on the rocker arm of the machine tool, and emulsion needs to be sprayed to cool the sheet metal during cutting. The sprayed emulsion can easily enter the negative pressure adsorption area of ​​the chuck, causing interference with the negative pressure adsorption. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a multi-station CNC machining tool for mobile phone mid-plates.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-station CNC machining machine tool for mobile phone mid-plates, comprising a machine tool body and a rocker arm, both ends of the rocker arm being fixed with connecting shafts, the two connecting shafts being rotatably mounted on the inner walls of both sides of the machine tool body, two drainage grooves being opened at the top of the rocker arm, one end of each drainage groove extending through to the outer side of the rocker arm, rectangular grooves being opened on the inner bottom surface of each drainage groove, storage components being provided inside each of the two rectangular grooves, rectangular blocks being fixed at the middle of the inner bottom surface of each of the two rectangular grooves, the top of the rectangular blocks being flush with the inner bottom surface of the drainage grooves, and sensing components being provided inside each of the two rectangular blocks; The rocker arm has an internal air passage that extends through to the outside of one of the connecting shafts. One end of the internal air passage extends to the bottom of the other end of the rocker arm. One end of the rocker arm has a bending hole that extends through to the outside of the other connecting shaft.

[0005] Preferably, a spindle arm is provided on the top of the machine tool body near the rear side, the bottom of the spindle arm extends into the machine tool body and is located above the rocker arm, a protective door is provided on the front side of the machine tool body, a control panel is fixed on the front side of the machine tool body near one edge, a groove is provided on the front side of the machine tool body near the bottom corner, a liquid supply pipe connected to one end of the bending hole is fixed inside the groove near one side, and a negative pressure pipe connected to one end of the internal air passage is fixed inside the groove near the other side.

[0006] Preferably, an inner flow channel is provided on both sides of the inner wall of the rocker arm near the two drainage grooves. Multiple indexing ports that penetrate into the inner flow channel are provided at equal intervals on both sides of the inner wall of the two drainage grooves. One end of each of the multiple inner flow channels is connected to a bending hole. An inner sealing frame is embedded between the inner walls of the two rectangular grooves near the bottom edge of the indexing port.

[0007] Preferably, the storage component includes a rectangular tray, which is slidably sealed between the inner walls of a rectangular groove. The top of the rectangular tray has a flat groove extending to both sides, and the bottom surface of the flat groove has a rectangular through-hole extending to the bottom. A rectangular block is slidably sealed between the inner walls of the rectangular through-hole.

[0008] Preferably, side flow channels are provided on both inner walls of the rectangular through-hole near the top edge, and both side flow channels extend to the outside of the rectangular support plate. An outer sealing frame is embedded on the outer surface of the rectangular support plate near the top edge. The outer sealing frame is located above the side flow channels, and a silicone gasket is embedded on the inner bottom surface of the flat groove outside the rectangular through-hole.

[0009] Preferably, a first spring is fixed between the bottom of the rectangular support plate and the inner bottom surface of the rectangular groove, and limit grooves are opened on both outer surfaces of the rectangular block. Limit blocks are fixed on both inner walls of the rectangular through-hole near the bottom edge, and the two limit blocks are slidably engaged inside the limit grooves.

[0010] Preferably, the sensing component includes a hollow tube, a cylindrical groove is provided on the top of the rectangular block, a buffer structure is provided on the outer surface of the hollow tube inside the cylindrical groove, an adjustment cavity is provided inside the rocker arm, a guide hole is provided on the top surface of the inner air passage, the guide hole and the adjustment cavity are interconnected, and the top of the guide hole extends to the bottom surface of the inner cylindrical groove.

[0011] Preferably, the hollow tube is slidably sealed between the inner walls of the guide hole, and the bottom of the hollow tube is closed. The top of the hollow tube extends above the rectangular block. A boss block is fixed on the top of the hollow tube. An inner cavity communicating with the hollow tube is opened inside the boss block. Multiple grid openings penetrating to the outside of the boss block are opened at equal intervals along the circumferential direction on the inner wall of the inner cavity. Multiple drainage ports penetrating to the interior are opened at equal intervals on the outer surface of the hollow tube near the bottom edge.

[0012] Preferably, an exhaust hole extending to the outside of the rocker arm is provided on one side of the inner wall of the guide hole near the bottom edge, and a support plate is fixed on the outer surface of the hollow tube inside the adjustment cavity. A second spring is fixed between the bottom of the support plate and the inner bottom surface of the adjustment cavity.

[0013] Preferably, the buffer structure includes a conical block fixed to the outer surface of the hollow tube. A sealing ring is embedded in the outer surface of the conical block near its bottom edge. The conical block is slidably sealed between the inner walls of the cylindrical groove, and the top conical surface of the conical block is located below the boss block. Multiple strip-shaped openings are equidistantly spaced on the outer surface of the hollow tube at the bottom of the conical block, and all of these openings extend into the interior of the hollow tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the plate to be processed is placed on the storage component. After placement, the sensing component is triggered to work, which opens the negative pressure adsorption channel. Then, the negative pressure adsorption force drives the storage component to slide to the bottom of the rectangular groove to complete the adsorption and fixation. At the same time, the indexing port is opened, and emulsion is sprayed onto the top of the rectangular support plate. After the plate is adsorbed and fixed, the liquid inside the cylindrical groove is buffered by the gap between the top conical surface of the conical block and the bottom of the boss block. This allows the liquid that has penetrated into the cylindrical groove to accumulate in the cavity between the top of the conical block and the cylindrical groove, and will not enter the grid opening on the boss block. This does not affect the negative pressure adsorption. Furthermore, during subsequent resetting, the liquid accumulated inside the cylindrical groove can be pushed out and discharged by the conical block to achieve the purpose of cleaning. 2. When the storage component is in operation, when the plate is placed inside the flat groove, the bottom of the plate will first contact the top of the boss block, triggering the sensing component to work, causing it to slide the rectangular support plate downwards until the limiting block is located at the bottom surface inside the limiting groove. At this time, the top of the rectangular support plate slides to below the indexing port, and the indexing port can spray the emulsion onto the top of the rectangular support plate. At this time, the top of the rectangular support plate is flush with the bottom surface inside the drainage groove, so that the sprayed emulsion can flow out from both sides of the drainage groove. At the same time, the conical block will slide to the bottom surface inside the cylindrical groove, forming a buffer cavity between the top of the conical block and the bottom of the boss block inside the cylindrical groove. 3. When the sensing component of this invention is working, after the bottom of the plate and the bottom surface of the flat groove are in contact with each other, the gap between the bottom of the plate and the inside of the rectangular through-hole located at the top of the rectangular block is sealed. At the same time, the bottom of the hollow tube will extend into the inner air channel, so that the drainage port is connected to the inner air channel. At this time, the negative pressure adsorption force in the inner air channel can draw out the air from the gap between the bottom of the plate and the inside of the rectangular through-hole through the hollow tube, forming a negative pressure adsorption force, adsorbing the plate downward, causing it to slide the rectangular support plate downward until the limiting block is located at the bottom surface of the limiting groove. 4. When the buffer structure is working in this invention, during subsequent reset, the hollow tube is driven to reset to its initial position under the elastic force of the second spring. When the hollow tube slides upward, it will push the liquid inside the cylindrical groove upward through the conical block to the cavity between the rectangular through-hole and the top of the rectangular block, and then discharge it to the outside from the side channel. Attached Figure Description

[0015] Figure 1 This invention provides a three-dimensional structural diagram of one side of a multi-station CNC machining center for mobile phone mid-plates. Figure 2 This invention provides a three-dimensional structural diagram of the other side of a multi-station CNC machining center for mobile phone mid-plates. Figure 3 This invention provides a front-view three-dimensional structural diagram of the rocker arm in a multi-station CNC machining center for mobile phone mid-plates; Figure 4 This invention provides a three-dimensional cross-sectional view of one side of the rocker arm in a multi-station CNC machining center for mobile phone mid-plates. Figure 5 This invention provides a three-dimensional cross-sectional view of the other side of the rocker arm in a multi-station CNC machining center for mobile phone mid-plates. Figure 6 This invention provides a three-dimensional cross-sectional view of the rocker arm in a multi-station CNC machining center for mobile phone mid-plates. Figure 7 This invention provides a partial cross-sectional three-dimensional structural diagram of the rocker arm in a multi-station CNC machining center for mobile phone mid-plates; Figure 8 This invention provides a front-view three-dimensional structural diagram of a rectangular support plate in a multi-station CNC machining center for mobile phone mid-plates; Figure 9 This invention provides a partial cross-sectional three-dimensional structural diagram of a rectangular support plate in a multi-station CNC machining center for mobile phone mid-plates; Figure 10 For the present invention Figure 4 A magnified view of a portion of point A in the middle; Figure 11 For the present invention Figure 5 A magnified view of a portion of point B in the middle.

[0016] In the diagram: 1. Machine tool body; 2. Spindle arm; 3. Protective door; 4. Control panel; 5. Groove; 6. Liquid supply pipe; 7. Negative pressure pipe; 8. Rocker arm; 9. Connecting shaft; 10. Drainage groove; 11. Rectangular support plate; 12. Flat groove; 13. Silicone gasket; 14. Internal air passage; 15. Bending hole; 16. Rectangular groove; 17. Rectangular block; 18. Internal sealing frame; 19. Internal flow channel; 20. Indexing port; 21. 21. Rectangular through-hole; 22. Side flow channel; 23. Outer sealing frame; 24. Limiting block; 25. Limiting groove; 26. Adjustment cavity; 27. First spring; 28. Cylindrical groove; 29. ​​Boss block; 30. Inner cavity; 31. Grid opening; 32. Conical block; 33. Sealing ring; 34. Hollow tube; 35. Strip opening; 36. Support plate; 37. Second spring; 38. Guide hole; 39. Drainage port; 40. Exhaust hole. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-11 The present invention provides a technical solution: a multi-station CNC machining machine tool for mobile phone mid-plate, including a machine tool body 1 and a rocker arm 8. Both ends of the rocker arm 8 are fixed with connecting shafts 9. The two connecting shafts 9 are rotatably arranged on the inner walls of both sides of the machine tool body 1. Two drainage grooves 10 are opened at the top of the rocker arm 8. One end of each drainage groove 10 extends to the outside of the rocker arm 8. A rectangular groove 16 is opened on the inner bottom surface of each drainage groove 10. A storage component is arranged inside each rectangular groove 16. A rectangular block 17 is fixed at the middle of the inner bottom surface of each rectangular groove 16. The top of the rectangular block 17 is flush with the inner bottom surface of the drainage groove 10. A sensing component is arranged inside each rectangular block 17. The rocker arm 8 has an internal air passage 14 extending through to the outside of one of the connecting shafts 9. One end of the internal air passage 14 extends to the bottom of the other end of the rocker arm 8. One end of the rocker arm 8 has a bending hole 15 extending through to the outside of the other connecting shaft 9. A spindle arm 2 is located on the top of the machine tool body 1 near the rear. The bottom of the spindle arm 2 extends into the machine tool body 1 and is located above the rocker arm 8. A protective door 3 is located on the front of the machine tool body 1. A control panel 4 is fixed on the front of the machine tool body 1 near one edge. A groove 5 is located on the front of the machine tool body 1 near the bottom corner. Inside the groove 5, near one side, a liquid supply pipe 6 is fixed and communicates with one end of the bending hole 15. Inside the groove 5, near the other side, a negative pressure pipe 7 is fixed and communicates with one end of the inner air passage 14. Inside the rocker arm 8, near the inner walls on both sides of the two drainage grooves 10, an inner flow channel 19 is provided. On the inner walls on both sides of the two drainage grooves 10, multiple indexing ports 20 are provided at equal intervals and penetrate into the inner flow channel 19. One end of each of the multiple inner flow channels 19 is communicated with the bending hole 15. An inner sealing frame 18 is embedded between the inner walls of the two rectangular grooves 16 near the bottom edge of the indexing port 20.

[0019] The effect achieved is as follows: the plate to be processed is placed on the storage component, and the sensing component is triggered to work. The sensing component opens the negative pressure adsorption channel, and the negative pressure adsorption force drives the storage component to slide to the bottom of the rectangular groove 16 to complete the adsorption and fixation. At the same time, the indexing port 20 is opened, and emulsion is sprayed onto the top of the rectangular support plate 11. After the plate is adsorbed and fixed, the liquid inside the cylindrical groove 28 is buffered by the gap between the top conical surface of the conical block 32 and the bottom of the boss block 29. This allows the liquid that has penetrated into the cylindrical groove 28 to accumulate in the cavity between the top of the conical block 32 and the cylindrical groove 28, and will not enter the grid opening 31 on the boss block 29, thus not affecting the negative pressure adsorption. Furthermore, during subsequent reset, the liquid accumulated inside the cylindrical groove 28 can be pushed out and discharged by the conical block 32 to achieve the purpose of cleaning.

[0020] like Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the storage assembly includes a rectangular tray 11, which is slidably and sealingly disposed between the inner walls of a rectangular groove 16. A flat groove 12 extending to both sides is formed at the top of the rectangular tray 11. A rectangular through-hole 21 extending to the bottom is formed on the inner bottom surface of the flat groove 12. A rectangular block 17 is slidably and sealingly disposed between the inner walls of the rectangular through-hole 21. Side flow channels 22 are formed on both sides of the inner walls of the rectangular through-hole 21 near the top edge. Both side flow channels 22 extend to the outside of the rectangular tray 11. An outer sealing frame 23 is embedded near the top edge of the outer surface of the rectangular channel 22. The outer sealing frame 23 is located above the side channel 22. A silicone gasket 13 is embedded on the inner bottom surface of the flat groove 12 outside the rectangular through-hole 21. A first spring 27 is fixed between the bottom of the rectangular support plate 11 and the inner bottom surface of the rectangular groove 16. Limiting grooves 25 are opened on both outer surfaces of the rectangular block 17. Limiting blocks 24 are fixed on both inner walls of the rectangular through-hole 21 near the bottom edge. Both limiting blocks 24 are slidably engaged inside the limiting grooves 25.

[0021] The effect achieved is that when the plate is placed inside the flat groove 12, the bottom of the plate will first contact the top of the boss block 29, triggering the sensor component to work, causing it to slide the rectangular support plate 11 downward until the limiting block 24 is located inside the bottom surface of the limiting groove 25. At this time, the top of the rectangular support plate 11 slides to below the indexing port 20, and the indexing port 20 can spray the emulsion onto the top of the rectangular support plate 11. At this time, the top of the rectangular support plate 11 is flush with the bottom surface inside the drainage groove 10, so that the sprayed emulsion can flow out from both sides of the drainage groove 10. At the same time, the conical block 32 will slide to the bottom surface inside the cylindrical groove 28, forming a buffer cavity inside the cylindrical groove 28 between the top of the conical block 32 and the bottom of the boss block 29.

[0022] like Figure 4 , Figure 5 , Figure 10 and Figure 11 As shown, the sensing component includes a hollow tube 34. A cylindrical groove 28 is formed on the top of the rectangular block 17. A buffer structure is provided on the outer surface of the hollow tube 34 inside the cylindrical groove 28. An adjustment cavity 26 is formed inside the rocker arm 8. A guide hole 38 is formed on the top surface of the inner air passage 14. The guide hole 38 and the adjustment cavity 26 penetrate each other, and the top of the guide hole 38 extends to the bottom surface of the inner cylindrical groove 28. The hollow tube 34 is slidably sealed between the inner walls of the guide hole 38. The bottom of the hollow tube 34 is closed, and the top of the hollow tube 34 extends above the rectangular block 17. A boss is fixed on the top of the hollow tube 34. Block 29, the interior of the boss block 29 is provided with an inner cavity 30 that communicates with the hollow tube 34. The inner wall of the inner cavity 30 is provided with a plurality of grid openings 31 that penetrate to the outside of the boss block 29 at equal intervals along the circumferential direction. The outer surface of the hollow tube 34 is provided with a plurality of drainage openings 39 that penetrate to the interior at equal intervals near the bottom edge. The inner wall of one side of the guide hole 38 is provided with an exhaust hole 40 that penetrates to the outside of the rocker arm 8. The outer surface of the hollow tube 34 is fixed inside the adjustment cavity 26 with a support plate 36. A second spring 37 is fixed between the bottom of the support plate 36 and the inner bottom surface of the adjustment cavity 26.

[0023] The effect achieved is that when the bottom of the plate is in contact with the bottom surface of the flat groove 12, the gap between the bottom of the plate and the inside of the rectangular through-hole 21 located at the top of the rectangular block 17 is sealed under the sealing of the silicone gasket 13. At the same time, the bottom of the hollow tube 34 will extend into the inner air passage 14, so that the drain port 39 is connected to the inner air passage 14. At the same time, the exhaust hole 40 is sealed through the outer surface of the hollow tube 34. At this time, the negative pressure adsorption force in the inner air passage 14 can draw out the air from the gap between the bottom of the plate and the inside of the rectangular through-hole 21 through the hollow tube 34. At the same time, the air between the bottom of the conical block 32 and the inside of the cylindrical groove 28 will be drawn out through the strip-shaped opening 35, so that a negative pressure adsorption force is formed. When the air is drawn out, the plate will be adsorbed downward, causing it to slide the rectangular support plate 11 downward until the limiting block 24 is located at the bottom surface of the limiting groove 25.

[0024] like Figure 4 , Figure 5 , Figure 10 and Figure 11 As shown, the buffer structure includes a conical block 32, which is fixed to the outer surface of the hollow tube 34. A sealing ring 33 is embedded in the outer surface of the conical block 32 near its bottom edge. The conical block 32 is slidably sealed between the inner walls of the cylindrical groove 28. The top conical surface of the conical block 32 is located below the boss block 29. Multiple strip-shaped openings 35 are equidistantly provided on the outer surface of the hollow tube 34 at the bottom of the conical block 32, and all the strip-shaped openings 35 extend into the interior of the hollow tube 34.

[0025] The effect achieved is that, during subsequent reset, the hollow tube 34 is reset to its initial position under the elastic force of the second spring 37. When the hollow tube 34 slides upward, it will push the liquid inside the cylindrical groove 28 upward through the conical block 32 into the cavity between the rectangular through-hole 21 and the top of the rectangular block 17, and then discharge it to the outside through the side flow channel 22.

[0026] Working principle: In the initial state, under the elastic force of the first spring 27, the rectangular support plate 11 is pushed upwards towards the rectangular groove 16. At this time, the limiting block 24 slides and engages inside the limiting groove 25. The top of the rectangular support plate 11 is flush with the top of the rocker arm 8. The boss block 29 is located above the rectangular support plate 11. The outer sealing frame 23 is located above the indexing port 20 and slides and seals against the inner wall of the drainage tank 10. The conical block 32 is located between the inner walls of the cylindrical groove 28 near the top edge. The bottom of the hollow tube 34 is located above one end of the exhaust hole 40. The bottom of one end of the side flow channel 22 is flush with the top of the rectangular block 17, and the bottom of the other end of the side flow channel 22 is flush with the inner bottom surface of the drainage tank 10. When the plate is placed inside the flat groove 12... The bottom of the plate will first contact the top of the boss block 29, pressing the boss block 29 and hollow tube 34 downwards. When the bottom of the plate is in contact with the bottom surface of the flat groove 12, the gap between the bottom of the plate and the inside of the rectangular through-hole 21 located at the top of the rectangular block 17 is sealed under the sealing of the silicone gasket 13. At the same time, the bottom of the hollow tube 34 will extend into the inner air passage 14, connecting the drain port 39 with the inner air passage 14. Meanwhile, the exhaust hole 40 is sealed through the outer surface of the hollow tube 34. At this time, the negative pressure adsorption force in the inner air passage 14 can draw out the air from the gap between the bottom of the plate and the inside of the rectangular through-hole 21 through the hollow tube 34. At the same time, it will also draw out the air from the bottom of the conical block 32 and the inside of the cylindrical groove 28. The emulsion is drawn out through the strip-shaped opening 35, creating a negative pressure suction force. As air is drawn out, the plate is drawn downwards, causing the rectangular support plate 11 to slide downwards until the limiting block 24 is located at the bottom surface of the limiting groove 25. At this point, the top of the rectangular support plate 11 slides below the indexing port 20, allowing the indexing port 20 to spray the emulsion onto the top of the rectangular support plate 11. Simultaneously, the top of the rectangular support plate 11 is flush with the bottom surface of the drainage groove 10, allowing the sprayed emulsion to flow out from both sides of the drainage groove 10. At the same time, the conical block 32 slides to the bottom surface of the cylindrical groove 28, forming a buffer cavity between the top of the conical block 32 and the bottom of the boss block 29 inside the cylindrical groove 28. During subsequent resetting, the negative pressure pipe 7 needs to be closed. This stops the negative pressure adsorption. At this time, under the elastic force of the first spring 27, the rectangular support plate 11 is driven to slide upward and reset to its initial position. Under the elastic force of the second spring 37, the hollow tube 34 is driven to reset to its initial position. When the hollow tube 34 slides upward, it will push the liquid inside the cylindrical groove 28 upward through the conical block 32 into the cavity between the rectangular through-hole 21 and the top of the rectangular block 17, and then discharge it to the outside through the side flow channel 22. In addition, during processing, since two rectangular support plates 11 are set on the rocker arm 8, the negative pressure adsorption can only take effect after the plates are placed on both rectangular support plates 11 and the two exhaust holes 40 are closed. This can prevent workers from missing the workpiece during actual operation.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-station CNC machining tool for mobile phone mid-plates, characterized in that, The machine tool includes a machine body (1) and a rocker arm (8). Both ends of the rocker arm (8) are fixed with connecting shafts (9). The two connecting shafts (9) are rotatably mounted on the inner walls of both sides of the machine body (1). The top of the rocker arm (8) has two drainage grooves (10). One end of each drainage groove (10) extends through to the outside of the rocker arm (8). The bottom surface of each drainage groove (10) has a rectangular groove (16). The inside of each rectangular groove (16) is equipped with a storage component. The bottom surface of each rectangular groove (16) is fixed with a rectangular block (17) at the middle. The top of the rectangular block (17) is flush with the bottom surface of the drainage groove (10). The inside of each rectangular block (17) is equipped with a sensing component. The rocker arm (8) has an internal air passage (14) that extends through to the outside of one of the connecting shafts (9). One end of the internal air passage (14) extends to the bottom of the other end of the rocker arm (8). One end of the rocker arm (8) has a bending hole (15) that extends through to the outside of the other connecting shaft (9).

2. The multi-station CNC machining tool for mobile phone mid-plate according to claim 1, characterized in that: A spindle arm (2) is provided on the top of the machine tool body (1) near the rear side. The bottom of the spindle arm (2) extends into the machine tool body (1) and is located above the rocker arm (8). A protective door (3) is provided on the front side of the machine tool body (1). A control panel (4) is fixed on the front side of the machine tool body (1) near one edge. A groove (5) is provided on the front side of the machine tool body (1) near the bottom corner. A liquid supply pipe (6) connected to one end of the bending hole (15) is fixed inside the groove (5) near one side. A negative pressure pipe (7) connected to one end of the internal air passage (14) is fixed inside the groove (5) near the other side.

3. The multi-station CNC machining tool for mobile phone mid-plate according to claim 1, characterized in that: The rocker arm (8) has an inner flow channel (19) on both sides of the inner wall near the two drainage channels (10). The inner walls of the two drainage channels (10) are provided with multiple indexing ports (20) that penetrate into the inner flow channels (19) at equal intervals. One end of each of the multiple inner flow channels (19) is connected to the bending hole (15). An inner sealing frame (18) is embedded between the inner walls of the two rectangular grooves (16) near the bottom edge of the indexing port (20).

4. The multi-station CNC machining tool for mobile phone mid-plate according to claim 3, characterized in that: The storage assembly includes a rectangular tray (11), which is slidably and sealed between the inner walls of a rectangular groove (16). The top of the rectangular tray (11) has a flat groove (12) extending to both sides. The bottom surface of the flat groove (12) has a rectangular through-hole (21) extending to the bottom. The rectangular block (17) is slidably and sealed between the inner walls of the rectangular through-hole (21).

5. The multi-station CNC machining tool for mobile phone mid-plate according to claim 4, characterized in that: Side flow channels (22) are provided on both sides of the inner wall near the top edge of the rectangular through-hole (21). Both side flow channels (22) extend to the outside of the rectangular support plate (11). An outer sealing frame (23) is embedded on the outer surface of the rectangular support plate (11) near the top edge. The outer sealing frame (23) is located above the side flow channels (22). A silicone gasket (13) is embedded on the inner bottom surface of the flat groove (12) outside the rectangular through-hole (21).

6. The multi-station CNC machining tool for mobile phone mid-plate according to claim 5, characterized in that: A first spring (27) is fixed between the bottom of the rectangular support plate (11) and the inner bottom surface of the rectangular groove (16). Limiting grooves (25) are opened on both outer surfaces of the rectangular block (17). Limiting blocks (24) are fixed on both inner walls of the rectangular through-hole (21) near the bottom edge. Both limiting blocks (24) are slidably engaged inside the limiting grooves (25).

7. A multi-station CNC machining tool for mobile phone mid-plates according to claim 6, characterized in that: The sensing component includes a hollow tube (34), a cylindrical groove (28) is provided on the top of the rectangular block (17), a buffer structure is provided on the outer surface of the hollow tube (34) inside the cylindrical groove (28), an adjustment cavity (26) is provided inside the rocker arm (8), a guide hole (38) is provided on the top surface of the inner air passage (14), the guide hole (38) and the adjustment cavity (26) penetrate each other, and the top of the guide hole (38) extends to the bottom surface inside the cylindrical groove (28).

8. A multi-station CNC machining tool for mobile phone mid-plates according to claim 7, characterized in that: The hollow tube (34) is slidably sealed between the inner walls of the guide hole (38), and the bottom of the hollow tube (34) is closed. The top of the hollow tube (34) extends above the rectangular block (17). A boss block (29) is fixed on the top of the hollow tube (34). An inner cavity (30) communicating with the hollow tube (34) is opened inside the boss block (29). Multiple grid openings (31) penetrating to the outside of the boss block (29) are opened at equal intervals along the circumferential direction on the inner wall of the inner cavity (30). Multiple drainage ports (39) penetrating to the interior are opened at equal intervals on the outer surface of the hollow tube (34) near the bottom edge.

9. A multi-station CNC machining tool for mobile phone mid-plates according to claim 8, characterized in that: An exhaust hole (40) is provided on one side of the inner wall of the guide hole (38) near the bottom edge, extending to the outside of the rocker arm (8). A support plate (36) is fixed inside the adjustment cavity (26) on the outer surface of the hollow tube (34). A second spring (37) is fixed between the bottom of the support plate (36) and the inner bottom surface of the adjustment cavity (26).

10. A multi-station CNC machining tool for mobile phone mid-plates according to claim 7, characterized in that: The buffer structure includes a conical block (32) fixed to the outer surface of the hollow tube (34). A sealing ring (33) is embedded on the outer surface of the conical block (32) near the bottom edge. The conical block (32) is slidably sealed between the inner walls of the cylindrical groove (28). The top conical surface of the conical block (32) is located below the boss block (29). Multiple strip-shaped openings (35) are equidistantly provided on the outer surface of the hollow tube (34) at the bottom of the conical block (32). All of the multiple strip-shaped openings (35) penetrate into the interior of the hollow tube (34).

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