Turnover plate milling vertical-horizontal conversion feeding and discharging system

Abstract

The application discloses a turnover plate milling vertical-horizontal conversion feeding and discharging system, which comprises buffer tools, conveying tools, vertical-horizontal turnover tools, exchange workbench assemblies and transition frame assemblies. Two buffer tools are arranged on the two sides of the vertical-horizontal turnover tools, each buffer tool is provided with a conveying tool, each conveying tool is provided with an exchange workbench assembly, and the transition frame assembly is arranged at one end of the vertical-horizontal turnover tools and connected with the exchange workbench assemblies. Through the application of the application, the turnover plate milling vertical-horizontal conversion feeding and discharging system is provided. When one exchange workbench assembly carries a workpiece for machining, the other exchange workbench assembly can synchronously carry out workpiece loading and unloading, so that the gap time of workpiece machining can be effectively utilized, the production cycle is shortened, and the efficiency of batch production is improved.

Description

Technical Field

[0001] This invention relates to the field of loading and unloading devices, and more particularly to a flip milling system for converting between vertical and horizontal loading and unloading. Background Technology

[0002] In the machining process of flip milling machines, the workpiece loading and unloading method and machining posture have a significant impact on production efficiency and safety. In traditional flip milling machines, when the workpiece is in a vertical position, loading and unloading often requires manual hoisting. Manual hoisting is not only inefficient, requiring a significant amount of time for positioning and securing each hoisting operation, but also poses a high safety risk, thus seriously affecting the continuity of production and the safety of operators. In contrast, installing workpieces in a horizontal position is quick and convenient, allowing operators to place and secure the workpiece more easily, while greatly reducing the possibility of safety accidents and improving the safety factor. Therefore, to improve the production efficiency of flip milling machines, developing an automatic loading and unloading and vertical-to-horizontal conversion device suitable for flip milling is particularly important.

[0003] Chinese patent application CN119407584A discloses an automatic loading / unloading and vertical-horizontal conversion fixture for machining. This fixture consists of a worktable, a vertical-horizontal conversion fixture, a gantry exchange fixture, and a material tray. The material tray is connected to the gantry exchange fixture, which in turn is connected to the vertical-horizontal conversion fixture, which is then connected to the worktable. The working process is as follows: the material tray transfers the workpiece to the gantry exchange fixture, which then transfers the workpiece in a horizontal position to the vertical-horizontal conversion fixture. The vertical-horizontal conversion fixture then transfers the workpiece to the worktable and changes its orientation, thus achieving workpiece transfer and vertical-horizontal conversion. This fixture reduces the difficulty of clamping parts to a certain extent, improves manual efficiency, and also enhances operational safety.

[0004] However, existing automated loading / unloading and vertical / horizontal conversion fixtures still have significant shortcomings. After a workpiece is processed, it must return to the gantry exchange fixture for disassembly, and then a new workpiece to be processed must be reinstalled and transported again. During this process, the workpiece loading and unloading time is not fully and effectively utilized. While the workpiece is waiting to be disassembled and reinstalled at the gantry exchange fixture, the processing equipment is idle, preventing further improvement in overall production efficiency. Summary of the Invention

[0005] In view of this, in order to solve the above problems, the purpose of the present invention is to provide a flip milling vertical-horizontal conversion loading and unloading system, including: a buffer fixture, a transport fixture, a vertical-horizontal flipping fixture, an exchange worktable assembly, and a transition frame assembly. The two buffer fixtures are disposed on both sides of the vertical-horizontal flipping fixture. Each buffer fixture is provided with a transport fixture. Each transport fixture is provided with an exchange worktable assembly. The transition frame assembly is disposed at one end of the vertical-horizontal flipping fixture and connected to the exchange worktable assembly.

[0006] In another preferred embodiment, the vertical-to-horizontal flipping fixture includes: a flipping base assembly, a flipping frame assembly, and a flipping drive assembly. Two buffer fixtures are disposed on both sides of the flipping base assembly. The flipping drive assembly is disposed on the flipping base assembly. The flipping frame assembly is rotatably connected to the flipping base assembly through the flipping drive assembly. The transport fixture and the exchange worktable assembly are both connected to the flipping frame assembly.

[0007] In another preferred embodiment, the buffer fixture includes: a worm gear drive assembly, two square steel roller guides and a round steel roller guide, wherein the round steel roller guide and the two square steel roller guides are all disposed on the foundation, and the round steel roller guide is disposed between the two square steel roller guides, and the worm gear drive assembly is disposed on the side of the round steel roller guide near the flip base assembly.

[0008] In another preferred embodiment, the transport fixture includes: a transport base, a first cylindrical guide rail, a pin positioning assembly, a first worm roller, a clamping block, a first roller assembly, a pin block, and a first anti-tipping wheel assembly. The first cylindrical guide rail and the first anti-tipping wheel assembly are both disposed at the upper end of the transport base, and the first anti-tipping wheel assembly is disposed on the side of the first cylindrical guide rail near the tilting base assembly. The pin positioning assembly is disposed on the outer wall of the transport base at the end away from the transition frame assembly. The first worm roller and the three first roller assemblies are both disposed at the lower end of the transport base. The two square steel roller guide rails and the round steel roller guide rails are both rollably connected to one of the first roller assemblies. The first worm roller meshes with the worm gear transmission assembly. A pin block is disposed between two adjacent first roller assemblies. The clamping block is disposed on both first roller assemblies connected to the square steel roller guide rail.

[0009] In another preferred embodiment, the exchange workbench assembly includes: a workbench, a second roller assembly, a pressure plate assembly, a second worm roller, and a pin sleeve. The second roller assembly, the pressure plate assembly, and the second worm roller are all disposed on the workbench. The second roller assembly is rotatably connected to the first cylindrical guide rail. Two pressure plate assemblies are disposed at one end of the second roller assembly. The two pressure plate assemblies are parallel to the second roller assembly. The second worm roller is disposed between the two pressure plate assemblies. The first anti-tipping wheel assembly is rotatably connected to the pressure plate assembly. The pin sleeve is disposed on the pressure plate assembly and cooperates with the pin positioning assembly.

[0010] In another preferred embodiment, the transition frame assembly includes: a transition frame, a second anti-tipping wheel assembly, a transition frame round steel guide rail, and a worm gear synchronous transmission assembly. The transition frame is disposed on the foundation. The second anti-tipping wheel assembly is disposed at the upper end of the transition frame and is rotatably connected to the pressure plate assembly. The transition frame round steel guide rail is disposed at the lower end of the transition frame and is rotatably connected to the second roller assembly. The worm gear synchronous transmission assembly is disposed between the second anti-tipping wheel assembly and the transition frame round steel guide rail. A telescopic rod is disposed on the worm gear synchronous transmission assembly. One end of the telescopic rod is connected to the tilting frame assembly, and the other end of the telescopic rod is connected to the workbench drive assembly in the working area.

[0011] In another preferred embodiment, the flip base assembly includes: a flip shaft assembly, a flip base, a flip frame support column, and a disc spring tensioning device support column. The flip shaft assembly, the flip frame support column, and the disc spring tensioning device support column are all disposed at the upper end of the flip base. The flip shaft assembly is disposed on one side of the flip base. The flip frame assembly is rotatably connected to the flip base through the flip shaft assembly. A limit switch is provided on the flip shaft assembly. The flip base has two mounting holes arranged linearly. Each mounting hole contains a flip drive assembly. Each mounting hole has a flip frame support column at both ends and a disc spring tensioning device support column on both sides.

[0012] In another preferred embodiment, the flip frame assembly includes: a flip frame, two square rails, a second cylindrical guide rail, a worktable worm gear drive assembly, a disc spring tensioning device, a positioning assembly, and a pull block. The two square rails are arranged parallel to each other on the flip frame, and the second cylindrical guide rail is disposed between the two square rails. Both the square rails and the second cylindrical guide rail are tactilely connected to the first roller assembly. The worktable worm gear drive assembly is disposed on the outer wall of one end of the flip frame and meshes with the second worm roller. The disc spring tensioning device is disposed at one end of the two square rails that are close to each other. The disc spring tensioning device cooperates with the clamping block. A positioning assembly is disposed between the second cylindrical guide rail and the adjacent square rail. The positioning assembly has a pin, which cooperates with the pin block. The pull block is disposed at the other end of the flip frame and cooperates with the pin positioning assembly.

[0013] In another preferred embodiment, the flip drive assembly includes: a flip drive base, an electric push rod, and a screw lift rod. The flip drive base is disposed in the mounting hole and connected to the inner wall of the mounting hole. The electric push rod is rotatably disposed on the flip base. The lower end of the screw lift rod is telescopically connected to the electric push rod, and the upper end of the screw lift rod is rotatably connected to the flip frame.

[0014] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a flip-plate milling vertical-horizontal conversion loading and unloading system is proposed. It can not only fully realize the automatic loading and unloading of workpieces and the conversion between vertical and horizontal states without manual hoisting, which helps to reduce the intensity of manual labor, but also avoids the safety hazards caused by manual operation and improves the safety of the production process. Furthermore, by setting up a double exchange worktable assembly, a double buffer fixture, and a double transport fixture, when one exchange worktable assembly is carrying a workpiece for processing, the other exchange worktable assembly can simultaneously load and unload the workpiece. This can effectively utilize the gap time of workpiece processing, solve the problem in the prior art that workpiece loading and unloading requires waiting for processing to be completed, and help to shorten the production cycle and improve the efficiency of batch production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the vertical / horizontal conversion loading and unloading system for flip-plate milling according to the present invention; Figure 2 This is a schematic diagram of the buffer fixture of the flip milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 3 This is a schematic diagram of the transport fixture of the flip-plate milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 4 for Figure 3 A structural diagram from another perspective; Figure 5 This is a schematic diagram of the exchange worktable assembly of the flip milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 6 This is a schematic diagram of the vertical / horizontal tilting fixture of the tilting milling vertical / horizontal conversion loading and unloading system of the present invention; Figure 7 This is a schematic diagram of the flipping frame assembly of the flipping milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 8 This is a schematic diagram of the flipping base assembly of the flipping milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 9 This is a schematic diagram of the flipping drive assembly of the flipping milling vertical-horizontal conversion loading and unloading system of the present invention; Figure 10 This is a schematic diagram of the transition frame assembly of the flip milling vertical-horizontal conversion loading and unloading system of the present invention.

[0016] In the attached image: 1. Buffer fixture; 2. Transport fixture; 3. Vertical / horizontal tilting fixture; 4. Exchange worktable assembly; 5. Transition frame assembly; 6. Working area; 7. Worm gear drive assembly; 8. Square steel roller guide rail; 9. Round steel roller guide rail; 10. Transport base; 11. First cylindrical guide rail; 12. Pin positioning assembly; 13. First worm gear roller; 14. Clamping block; 15. First roller assembly; 16. Pin block; 17. First anti-tipping wheel assembly; 18. Worktable; 19. Second roller assembly; 20. Pressure plate assembly; 21. Second worm gear roller; 22. Pin sleeve; 23. Tilting base assembly; 24. 25. Tilting frame assembly; 26. Tilting drive assembly; 27. Tilting shaft assembly; 28. Tilting base; 29. ​​Tilting frame support column; 30. Disc spring tensioning device support column; 31. Limit switch; 32. Tilting frame; 33. Square rail; 34. Second cylindrical guide rail; 35. Workbench worm gear drive assembly; 36. Disc spring tensioning device; 37. Positioning assembly; 38. Pull block; 39. Pin; 40. Tilting drive base; 41. Electric push rod; 42. Screw jack rod; 43. Transition frame; 44. Second anti-tipping wheel assembly; 45. Transition frame round steel guide rail; 46. Worm gear synchronous transmission assembly; 47. Telescopic rod. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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] In the description of this invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "lateral", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this invention.

[0019] It should be noted that the terms "horizontal" and "vertical" in this invention are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0020] like Figure 1-10 The figure shows a preferred embodiment of a flip milling vertical-horizontal conversion loading and unloading system, including: a buffer fixture 1, a transport fixture 2, a vertical-horizontal flipping fixture 3, an exchange worktable assembly 4, and a transition frame assembly 5. Two buffer fixtures 1 are disposed on both sides of the vertical-horizontal flipping fixture 3. Each buffer fixture 1 is provided with a transport fixture 2. Each transport fixture 2 is provided with an exchange worktable assembly 4. The transition frame assembly 5 is disposed at one end of the vertical-horizontal flipping fixture 3 and connected to the exchange worktable assembly 4.

[0021] Furthermore, as a preferred embodiment, the vertical-horizontal flipping fixture 3 includes: a flipping base assembly 23, a flipping frame assembly 24, and a flipping drive assembly 25. Two buffer fixtures 1 are disposed on both sides of the flipping base assembly 23, the flipping drive assembly 25 is disposed on the flipping base assembly 23, the flipping frame assembly 24 is rotatably connected to the flipping base assembly 23 through the flipping drive assembly 25, and the transport fixture 2 and the exchange worktable assembly 4 are both connected to the flipping frame assembly 24.

[0022] Furthermore, as a preferred embodiment, the buffer fixture 1 includes: a worm gear drive assembly 7, two square steel roller guide rails 8, and a round steel roller guide rail 9. The round steel roller guide rail 9 and the two square steel roller guide rails 8 are both set on the foundation, and the round steel roller guide rail 9 is set between the two square steel roller guide rails 8. The worm gear drive assembly 7 is set on the side of the round steel roller guide rail 9 near the flip base assembly 23.

[0023] Furthermore, in a preferred embodiment, the transport fixture 2 includes: a transport base 10, a first cylindrical guide rail 11, a pin positioning assembly 12, a first worm gear roller 13, a clamping block 14, a first roller assembly 15, a pin block 16, and a first anti-tipping wheel assembly 17. The first cylindrical guide rail 11 and the first anti-tipping wheel assembly 17 are both located at the upper end of the transport base 10, and the first anti-tipping wheel assembly 17 is located on the side of the first cylindrical guide rail 11 near the tilting base assembly 23. The pin positioning assembly 12... The first worm roller 13 and the three first roller assemblies 15 are both located on the outer wall of the transport base 10 away from the transition frame assembly 5. The two square steel roller guides 8 and the round steel roller guides 9 are both rolledly connected to the first roller assembly 15. The first worm roller 13 meshes with the worm gear transmission assembly 7. A pin block 16 is provided between two adjacent first roller assemblies 15. Clamping blocks 14 are provided on the two first roller assemblies 15 connected to the square steel roller guides 8.

[0024] Furthermore, in a preferred embodiment, the exchange workbench assembly 4 includes: a workbench 18, a second roller assembly 19, a pressure plate assembly 20, a second worm roller 21, and a pin sleeve 22. The second roller assembly 19, the pressure plate assembly 20, and the second worm roller 21 are all disposed on the workbench 18. The second roller assembly 19 is tactilely connected to the first cylindrical guide rail 11. Two pressure plate assemblies 20 are disposed at one end of the second roller assembly 19. The two pressure plate assemblies 20 are parallel to the second roller assembly 19. The second worm roller 21 is disposed between the two pressure plate assemblies 20. The first anti-tipping wheel assembly 17 is tactilely connected to the pressure plate assembly 20. The pin sleeve 22 is disposed on the pressure plate assembly 20 and cooperates with the pin positioning assembly 12.

[0025] Furthermore, as a preferred embodiment, the transition frame assembly 5 includes: a transition frame 42, a second anti-overturning wheel assembly 43, a transition frame round steel guide rail 44, and a worm gear synchronous transmission assembly 45. The transition frame 42 is disposed on the foundation, the second anti-overturning wheel assembly 43 is disposed at the upper end of the transition frame 42 and is rotatably connected to the pressure plate assembly 20, the transition frame round steel guide rail 44 is disposed at the lower end of the transition frame 42 and is rotatably connected to the second roller strip assembly 19, the worm gear synchronous transmission assembly 45 is disposed between the second anti-overturning wheel assembly 43 and the transition frame round steel guide rail 44, and a telescopic rod 46 is disposed on the worm gear synchronous transmission assembly 45. One end of the telescopic rod 46 is connected to the flipping frame assembly 24, and the other end of the telescopic rod 46 is connected to the workbench drive assembly in the working area 6. Furthermore, the worm gear synchronous transmission assembly 45 is connected to the workbench worm drive assembly 34 of the flip frame assembly 24 and the workbench drive assembly of the working area 6 respectively through the telescopic rod 46, which can realize the synchronous transmission of power at both ends, avoid jamming of the exchange workbench assembly 4 during the conveying process, and ensure the smooth transfer.

[0026] Furthermore, in a preferred embodiment, the flip base assembly 23 includes: a flip shaft assembly 26, a flip base 27, a flip frame support column 28, and a disc spring tensioning device support column 29. The flip shaft assembly 26, the flip frame support column 28, and the disc spring tensioning device support column 29 are all disposed on the upper end of the flip base 27. The flip shaft assembly 26 is disposed on one side of the flip base 27. The flip frame assembly 24 is rotatably connected to the flip base 27 through the flip shaft assembly 26. A limit switch 30 is provided on the flip shaft assembly 26. The limit switch 30 is used to precisely control the flip stroke of the flip frame assembly 24 to avoid excessive flipping. The flip base 27 has two mounting holes arranged linearly. A flip drive assembly 25 is disposed in each mounting hole. A flip frame support column 28 is disposed at both ends of each mounting hole. A disc spring tensioning device support column 29 is disposed on both sides of each mounting hole.

[0027] Furthermore, in a preferred embodiment, the flip frame assembly 24 includes: a flip frame 31, two square rails 32, a second cylindrical guide rail 33, a worktable worm gear drive assembly 34, a disc spring tensioning device 35, a positioning assembly 36, and a pull block 37. The two square rails 32 are arranged parallel to each other on the flip frame 31, and the second cylindrical guide rail 33 is disposed between the two square rails 32. Both the square rails 32 and the second cylindrical guide rail 33 are tactilely connected to the first roller assembly 15. The worktable worm gear drive assembly 34 is configured to... On one end of the outer wall of the flip frame 31, a disc spring tensioning device 35 is provided and meshes with the second worm roller strip 21. The two square rails 32 are close to each other and are provided with a disc spring tensioning device 35. The disc spring tensioning device 35 cooperates with the clamping block 14. A positioning component 36 is provided between the second cylindrical guide rail 33 and the adjacent square rail 32. The positioning component 36 has a pin 38. The pin 38 cooperates with the pin block 16. The pull block 37 is provided at the other end of the flip frame 31 and cooperates with the pin positioning component 12.

[0028] Furthermore, as a preferred embodiment, the flip drive assembly 25 includes: a flip drive base 39, an electric push rod 40, and a screw jack rod 41. The flip drive base 39 is disposed in the mounting hole and connected to the inner wall of the mounting hole. The electric push rod 40 is rotatably disposed on the flip base 27. The lower end of the screw jack rod 41 is telescopically connected to the electric push rod 40, and the upper end of the screw jack rod 41 is rotatably connected to the flip frame 31.

[0029] The workflow of this invention is divided into a loading process and a unloading process, as detailed below: (a) Feeding process When first used, the invention is in its initial state. At this time, the flipping frame assembly 24 is in a horizontal position. Exchange worktable assemblies 4 are installed on the transport fixtures 2 on both sides of the buffer fixture 1, and are ready to be used. One exchange worktable assembly 4 has already installed the workpiece to be processed, while the other exchange worktable assembly 4 is in an unloaded state. Subsequently, the worm gear drive assembly 7 on the buffer fixture 1 is activated. The worm gear drive assembly 7, through engagement with the first worm roller 13 of the transport fixture 2, drives the transport fixture 2 carrying the workpiece to be processed along the square steel roller guide rail 8 and the round steel roller guide rail 9 towards the flipping frame assembly. As part 24 moves until the transport fixture 2 is fully inside the bearing area of ​​the tilting frame assembly 24, the positioning component 36 on the tilting frame assembly 24 begins to operate. Under the action of the external drive mechanism, the pin 38 of the positioning component 36 is inserted into the pin block 16 of the transport fixture 2 to restrict the movement of the transport fixture 2, thus completing the positioning and fixing of the transport fixture 2 on the tilting frame assembly 24. After the position of the transport fixture 2 on the tilting frame assembly 24 is fixed, the tilting drive assembly 25 is activated, and the electric push rod 40 can drive the screw jack rod 41 to extend. The screw jack rod 41 pushes the tilting frame assembly 24 around the tilting shaft assembly 26. The device flips upwards until it reaches a standing position. At this point, the limit switch 30 on the flipping shaft assembly 26 is triggered, stopping the flipping action. During this process, the disc spring tensioning device 35 separates from the disc spring tensioning device support column 29 of the flipping base assembly 23, the pushing force disappears, and the disc spring tensioning device 35 automatically tightens the clamping block 14 of the transport fixture 2, firmly fixing the transport fixture 2 to the flipping frame assembly 24 to prevent the transport fixture 2 from tipping over in the standing position. Subsequently, the worm gear synchronous transmission assembly 45 of the transition frame assembly 5 is activated, and the telescopic rod 46 on the worm gear synchronous transmission assembly 45 extends. One end of the telescopic rod 46 is connected to the flipping frame assembly. 24. The other end of the telescopic rod 46 is connected to the workbench drive assembly in the working area 6 to ensure the synchronization of power transmission at both ends of the telescopic rod 46. Then, the workbench worm drive assembly 34 is started. By meshing with the second worm roller 21 of the exchange workbench assembly 4, the workbench worm drive assembly 34 can drive the exchange workbench assembly 4 to move along the transition frame round steel guide rail 44 of the transition frame assembly 5 to the working area 6. At the same time, the second anti-tipping wheel assembly 43 and the pressure plate assembly 20 roll together to ensure the smoothness of the movement process until the exchange workbench assembly 4 reaches the designated processing position, and the loading process is completed.

[0030] (II) Material feeding process During unloading, the workbench drive assembly in work area 6 is activated first, transporting the exchange workbench assembly 4 carrying the processed workpiece along the round steel guide rail 44 of the transition frame towards the vertical-horizontal tilting fixture 3 until it returns to the transport fixture 2. The pin positioning assembly 12 on the transport fixture 2 then activates, inserting into the pin sleeve 22 of the exchange workbench assembly 4 to complete the positioning and fixing of the exchange workbench assembly 4. Subsequently, the tilting drive assembly 25 is activated, and the electric push rod 40 drives the screw jack rod 41 to retract, pulling the tilting frame assembly 24 to tilt downwards around the tilting shaft assembly 26 until it returns to the horizontal position. The limit switch 30 is triggered again, and the tilting action stops. During this process, the disc spring tensioning device 35 and the disc spring tensioning device support column 2... Upon contact with the 9th contact point, the clamping block 14 is released under the action of the top thrust, and the transport fixture 2 is released from the fixing of the flipping frame assembly 24. Subsequently, the pin 38 of the positioning assembly 36 is pulled out by the external drive mechanism to release the restriction on the transport fixture 2. The worm gear transmission assembly 7 on the buffer fixture 1 starts in reverse, driving the transport fixture 2 to carry the processed workpiece back along the square steel roller guide rail 8 and the round steel roller guide rail 9 to the buffer fixture 1, completing the unloading process. While the exchange workbench assembly 4 is loading, processing and unloading, the transport fixture 2 on the other buffer fixture 1 can simultaneously install a new batch of workpieces to be processed. After the previous batch of workpieces is unloaded, the next round of loading process is immediately started to realize continuous production.

[0031] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A flip-plate milling system for converting between vertical and horizontal loading and unloading, characterized in that, include: The assembly includes a buffer fixture, a transport fixture, a vertical-to-horizontal flipping fixture, an exchange workbench assembly, and a transition frame assembly. Two buffer fixtures are disposed on both sides of the vertical-to-horizontal flipping fixture. Each buffer fixture is provided with a transport fixture. Each transport fixture is provided with an exchange workbench assembly. The transition frame assembly is disposed at one end of the vertical-to-horizontal flipping fixture and connected to the exchange workbench assembly. The vertical-horizontal flipping fixture includes: a flipping base assembly, a flipping frame assembly, and a flipping drive assembly. Two buffer fixtures are disposed on both sides of the flipping base assembly. The flipping drive assembly is disposed on the flipping base assembly. The flipping frame assembly is rotatably connected to the flipping base assembly through the flipping drive assembly. The transport fixture and the exchange worktable assembly are both connected to the flipping frame assembly. The buffer fixture includes: a worm gear drive assembly, two square steel roller guide rails and a round steel roller guide rail. The round steel roller guide rail and the two square steel roller guide rails are all set on the foundation, and the round steel roller guide rail is set between the two square steel roller guide rails. The worm gear drive assembly is set on the side of the round steel roller guide rail close to the flip base assembly. The transport fixture includes: a transport base, a first cylindrical guide rail, a pin positioning assembly, a first worm roller, a clamping block, a first roller assembly, a pin block, and a first anti-tipping wheel assembly. The first cylindrical guide rail and the first anti-tipping wheel assembly are both located at the upper end of the transport base, and the first anti-tipping wheel assembly is located on the side of the first cylindrical guide rail near the tilting base assembly. The pin positioning assembly is located on the outer wall of the transport base at the end away from the transition frame assembly. The first worm roller and the three first roller assemblies are both located at the lower end of the transport base. The two square steel roller guide rails and the round steel roller guide rails are both tactilely connected to one of the first roller assemblies. The first worm roller meshes with the worm gear transmission assembly. A pin block is provided between two adjacent first roller assemblies. The clamping block is provided on both first roller assemblies connected to the square steel roller guide rail.

2. The flip-plate milling vertical / horizontal conversion loading and unloading system according to claim 1, characterized in that, The exchange workbench assembly includes: a workbench, a second roller assembly, a pressure plate assembly, a second worm roller, and a pin sleeve. The second roller assembly, the pressure plate assembly, and the second worm roller are all disposed on the workbench. The second roller assembly is rotatably connected to the first cylindrical guide rail. Two pressure plate assemblies are disposed at one end of the second roller assembly, and both pressure plate assemblies are parallel to the second roller assembly. The second worm roller is disposed between the two pressure plate assemblies. The first anti-tipping wheel assembly is rotatably connected to the pressure plate assembly. The pin sleeve is disposed on the pressure plate assembly and cooperates with the pin positioning assembly.

3. The flip-plate milling vertical / horizontal conversion loading and unloading system according to claim 2, characterized in that, The transition frame assembly includes: a transition frame, a second anti-tipping wheel assembly, a transition frame round steel guide rail, and a worm gear synchronous transmission assembly. The transition frame is disposed on the foundation. The second anti-tipping wheel assembly is disposed at the upper end of the transition frame and is rotatably connected to the pressure plate assembly. The transition frame round steel guide rail is disposed at the lower end of the transition frame and is rotatably connected to the second roller assembly. The worm gear synchronous transmission assembly is disposed between the second anti-tipping wheel assembly and the transition frame round steel guide rail. A telescopic rod is disposed on the worm gear synchronous transmission assembly. One end of the telescopic rod is connected to the tilting frame assembly, and the other end of the telescopic rod is connected to the worktable drive assembly in the working area.

4. The flip-plate milling vertical / horizontal conversion loading and unloading system according to claim 3, characterized in that, The flip base assembly includes: a flip shaft assembly, a flip base, a flip frame support column, and a disc spring tensioning device support column. The flip shaft assembly, the flip frame support column, and the disc spring tensioning device support column are all disposed at the upper end of the flip base. The flip shaft assembly is disposed on one side of the flip base. The flip frame assembly is rotatably connected to the flip base through the flip shaft assembly. A limit switch is provided on the flip shaft assembly. The flip base has two mounting holes arranged linearly. Each mounting hole contains a flip drive assembly. Each mounting hole has a flip frame support column at both ends and a disc spring tensioning device support column on both sides.

5. The flip-plate milling vertical / horizontal conversion loading and unloading system according to claim 4, characterized in that, The flip frame assembly includes: a flip frame, two square rails, a second cylindrical guide rail, a worktable worm gear drive assembly, a disc spring tensioning device, a positioning assembly, and a pull block. The two square rails are arranged parallel to each other on the flip frame, and the second cylindrical guide rail is disposed between the two square rails. Both the square rails and the second cylindrical guide rail are tactilely connected to the first roller assembly. The worktable worm gear drive assembly is disposed on the outer wall of one end of the flip frame and meshes with the second worm roller. The disc spring tensioning device is disposed at one end of the two square rails that are close to each other. The disc spring tensioning device cooperates with the clamping block. A positioning assembly is disposed between the second cylindrical guide rail and the adjacent square rail. The positioning assembly has a pin, which cooperates with the pin block. The pull block is disposed at the other end of the flip frame and cooperates with the pin positioning assembly.

6. The flip-plate milling vertical / horizontal conversion loading and unloading system according to claim 5, characterized in that, The flip drive assembly includes: a flip drive base, an electric push rod, and a screw lift rod. The flip drive base is disposed in the mounting hole and connected to the inner wall of the mounting hole. The electric push rod is rotatably disposed on the flip base. The lower end of the screw lift rod is telescopically connected to the electric push rod, and the upper end of the screw lift rod is rotatably connected to the flip frame.

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