Machining feed system

Abstract

The application relates to a machining feeding system, which comprises a material bin and a conveying table, a mechanical hand is connected to the conveying table, a transmission piece is connected between the conveying table and the mechanical hand, and the transmission piece drives the mechanical hand holding the workpiece on the material bin to slide towards the machining center when the clamping end of the mechanical hand holds the workpiece. The material bin and the conveying table are arranged in the application, automatic transportation of the workpiece to be machined between the material storage area and the machining center is realized, workers do not need to transport back and forth between the material storage area and the machining center, the working pressure of the workers is reduced, the working efficiency of the workers is improved, the machining efficiency of the workpiece is improved, the arrangement of the limiting piece realizes the installation of multiple material trays on the inner wall of the installation cavity, the replacement frequency of the material trays in the installation cavity by workers is reduced, and therefore the production efficiency of the workpiece is improved; the arrangement of the positioning rod and the positioning cylinder makes the material frame not easy to deviate in the accommodating cavity, and the limiting stability of the material frame on the inner wall of the accommodating cavity is improved.

Description

Technical Field

[0001] This application relates to the field of machining, and in particular to a machining feed system. Background Technology

[0002] Machining refers to the process of altering the shape, size, or properties of a workpiece using mechanical equipment. Based on the processing method, it can be divided into cutting and pressure processing.

[0003] Shift forks are components on automotive transmissions, primarily used for clutch shifting. During shift fork manufacturing, blank parts, semi-finished products, and finished products need to be placed in designated areas. When the machining center performs batch processing on blank parts, workers need to move the blank parts back and forth from the material storage area to the machining center.

[0004] Regarding the aforementioned technologies, the inventors believe that repeatedly moving blank parts from the material storage area to the machining center by operators not only wastes a lot of their time but also increases their labor intensity. Summary of the Invention

[0005] To address the issue of workers repeatedly moving blank parts from the material storage area to the machining center, this application provides a machining material feeding system.

[0006] This application provides a machining material feeding system, which adopts the following technical solution:

[0007] A machining material feeding system includes a hopper and a transport table. The transport table connects the hopper and a machining center. The hopper is used to place workpieces. A robot arm is connected to the transport table, with the gripping end of the robot arm facing the hopper. A transfer device connects the transport table and the robot arm. The transfer device is used to drive the robot arm to move closer to or away from the hopper. When the gripping end of the robot arm holds a workpiece on the hopper, the transfer device drives the robot arm holding the workpiece to slide towards the machining center.

[0008] By adopting the above technical solution, when the machining center needs to process workpieces such as shift forks, the mechanical end of the robot arm clamps the shift fork on the hopper, and the transmission component drives the robot arm holding the shift fork to slide towards the machining center, realizing the automatic transportation of the shift forks to be processed between the material storage area and the machining center. This eliminates the need for workers to transport the materials back and forth between the material storage area and the machining center, thereby reducing the workload of workers, improving their work efficiency, accelerating the processing efficiency of shift forks, and reducing the processing cost of shift forks.

[0009] Optionally, the hopper includes a fixed platform, a lifting platform, a material tray, and a material frame. The fixed platform has a receiving cavity for accommodating the material frame, and the material frame has a mounting cavity for storing the material tray. The material tray has multiple positioning slots for placing workpieces. The mounting cavity communicates with the receiving cavity. The lifting platform is slidably connected to the inner wall of the receiving cavity. The sliding direction of the lifting platform is towards or away from the robot arm. A clamping assembly is connected to the lifting platform. The clamping assembly is used to drive the material tray in the mounting cavity to be placed on the lifting platform. When the lifting platform slides away from the robot arm, the clamping assembly clamps the material tray in the mounting cavity and moves it onto the lifting platform. When the lifting platform slides towards the robot arm, the material tray on the lifting platform faces the clamping end of the robot arm.

[0010] By adopting the above technical solution, when the machining center needs to process the workpiece, the lifting platform slides away from the robot arm, the clamping components on the lifting platform face the tray in the mounting cavity, the clamping components clamp the tray in the mounting cavity and drive the tray into the end face of the lifting platform, the lifting platform slides towards the robot arm, the multiple positioning slots on the tray face the robot arm clamping end, the robot arm clamps the workpiece in the positioning slot, and the transfer component drives the robot arm holding the workpiece to slide towards the machining center, realizing automatic feeding of the hopper without the need for manual feeding by the operator, thereby reducing the workload of the operator and improving the work efficiency of the operator.

[0011] Optionally, multiple limiting members are spaced apart on the inner walls of the mounting cavity, and a limiting gap is left between adjacent limiting members on the same side of the mounting cavity. When the two ends of the material tray are embedded in the limiting gaps of the same height, the material tray is limited to the inner wall of the mounting cavity.

[0012] By adopting the above technical solution, multiple material trays are embedded one-to-one into the limiting gaps at the same height at both ends, and the multiple material trays are sequentially and spaced apart on the inner wall of the mounting cavity, realizing the installation of multiple material trays on the inner wall of the mounting cavity, reducing the number of times the workers need to replace the material trays in the mounting cavity, thereby improving the production efficiency of the workpiece.

[0013] Optionally, a positioning rod and a positioning cylinder are connected to the inner wall of the receiving cavity. When the material frame is located on the inner wall of the receiving cavity and the outer wall of the material frame abuts against the outer wall of the positioning rod, the piston rod end of the positioning cylinder abuts against the outer wall of the material frame to form a fixed position.

[0014] By adopting the above technical solution, when the worker places the material frame into the receiving cavity, the outer wall of the material frame abuts against the outer wall of the positioning rod, and the end of the piston rod of the positioning cylinder presses against the outer wall of the material frame to form a fixation, so that the material frame is not easy to shift in the receiving cavity, thereby improving the limiting stability of the material frame on the inner wall of the receiving cavity.

[0015] Optionally, a baffle is slidably connected to the outer wall of the material frame. The sliding direction of the baffle is parallel to the sliding direction of the lifting platform. Multiple blocks are connected to the outer wall of the baffle facing the mounting cavity. Each block corresponds to a limiting gap. When the baffle slides towards the ground, the blocks correspond to the limiting components, and the sealing effect of the limiting gap disappears. When the baffle slides away from the ground, the blocks correspond to the limiting gaps, and the material tray is confined within the limiting gaps.

[0016] By adopting the above technical solution, the workers place the forks to be processed into the positioning grooves in sequence, so that the forks to be processed are placed on the material tray. The baffle is slid towards the ground, and the stop block and the limiting component correspond one by one, so that the sealing effect of the stop block on the limiting gap disappears. The two ends of the material tray are embedded into the limiting gaps of the same height. The baffle is slid away from the ground, and the stop block and the limiting gap correspond one by one, so that the material tray is not easy to fall off the material frame from the limiting gap, thereby improving the connection stability of the material tray and the material frame.

[0017] Optionally, an elastic element is connected between the baffle and the material frame, the elastic element having a tendency to drive the baffle to slide away from the ground.

[0018] By adopting the above technical solution, when the worker drives the baffle to slide towards the ground, the sealing effect of the stop block on the limiting gap disappears, and the two ends of the material tray are embedded in the limiting gap at the same height. When the worker releases the baffle, the elastic force of the elastic element drives the baffle to slide away from the ground. The stop block and the material tray correspond one-to-one, making it difficult for the material tray to fall off the material frame from the limiting gap, thereby realizing the installation of the material tray on the inner wall of the installation cavity.

[0019] Optionally, the baffle is connected to an abutment block facing the outer wall of the receiving cavity, and an actuation cylinder is connected to the inner wall of the receiving cavity. When the piston rod of the actuation cylinder presses against the outer wall of the abutment block and drives the baffle to slide towards the ground, the abutment block and the limiting member correspond one-to-one, and the sealing effect of the limiting gap disappears.

[0020] By adopting the above technical solution, when the piston rod of the starting cylinder presses against the outer wall of the abutment block and drives the baffle to slide towards the ground, the baffle and the limiting component correspond one-to-one, so that the sealing effect of the limiting gap disappears, thereby facilitating the clamping component to pick up the material tray. There is no need for the operator to manually control the sliding of the baffle, which further realizes the automatic feeding of the hopper and improves the processing efficiency of the workpiece.

[0021] Optionally, the clamping assembly includes a gripping cylinder and a gripping block. The gripping block is connected to the gripping cylinder, and the gripping cylinder is slidably connected to the lifting platform. The sliding direction of the gripping cylinder is towards or away from the material frame. A gripping boss is connected to the end face of the material tray away from the positioning groove. A fixed cavity for accommodating the gripping boss is opened on the end face of the gripping block, and the piston rod of the gripping cylinder is located in the fixed cavity.

[0022] By adopting the above technical solution, when the lifting platform slides towards the ground, the clamping assembly faces the mounting cavity, the gripping cylinder slides towards the material frame, the gripping boss is located above the fixed cavity, the lifting platform slides towards the gripping boss, the gripping boss is located inside the fixed cavity, the end of the gripping cylinder piston rod abuts against the end face of the gripping boss, and drives the outer wall of the gripping boss to abut against the inner wall of the fixed cavity to achieve fixation, the gripping cylinder slides away from the material frame, driving the material tray to slide away from the material tray and be located on the end face of the lifting platform, and the fork in the positioning groove faces the gripping end of the robot arm, thereby realizing the automatic replacement of the material tray on the lifting platform without manual operation by the operator, further improving the production efficiency of the fork.

[0023] Optionally, the lifting platform has a positioning cavity for accommodating the material tray on its outer wall facing the robot. A positioning plate and a fixing cylinder are connected to the inner wall of the positioning cavity. When the clamping assembly drives the material tray to be located in the positioning cavity, the outer wall of the material tray abuts against the outer wall of the positioning plate, and the piston rod of the fixing cylinder presses against the outer wall of the material tray, and drives the outer wall of the material tray to press against the inner wall of the positioning cavity to form a fixation.

[0024] By adopting the above technical solution, when the clamping component drives the material tray in the mounting cavity into the positioning cavity, the outer wall of the material tray abuts against the outer wall of the positioning plate to form a fixation. At the same time, the end of the piston rod of the fixing cylinder abuts against the outer wall of the material tray and drives the outer wall of the material tray to abut against the inner wall of the positioning cavity to form a fixation. This makes it difficult for the material tray to shift in the positioning cavity, and the gripping end of the robot arm can accurately grasp the workpiece in the positioning groove, thereby improving the accuracy of the robot arm in grasping the workpiece.

[0025] Optionally, a connecting rod is slidably connected to the positioning plate. The sliding direction of the connecting rod is parallel to the sliding direction of the gripping cylinder, and the end of the connecting rod protruding from the end face of the positioning plate is used to abut against the outer wall of the material tray. A positioning groove is provided on the connecting rod, and a guide surface is provided on the inner wall of the positioning groove away from the material frame. The inclination height of the guide surface decreases as the distance to the material frame decreases. A fixing plate is slidably connected to the inner wall of the positioning groove. The sliding direction of the fixing plate is parallel to the inclination direction of the guide surface. When the outer wall of the material tray abuts against the end of the connecting rod and drives the connecting rod to slide towards the positioning plate, the fixing plate slides along the guide surface towards the material tray, and the end face of the fixing plate abuts against the end face of the material tray to form a fixation.

[0026] By adopting the above technical solution, when the clamping component drives the material tray in the installation cavity into the positioning cavity, the outer wall of the material tray abuts against the end of the connecting rod and drives the connecting rod to slide towards the positioning plate, which in turn drives the fixing plate to slide along the guide surface towards the material tray. The end face of the fixing plate abuts against the end face of the material tray to form a fixation, making it difficult for the material tray to fall off the lifting platform, and further improving the connection stability between the material tray and the lifting platform.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The setup of the silo and conveyor platform enables automatic transport of the forks to be processed between the material storage area and the processing center, eliminating the need for staff to transport materials back and forth between the two areas, reducing staff workload, improving staff efficiency, and accelerating the processing efficiency of the forks.

[0029] 2. The setting of the limiting component enables the installation of multiple material trays on the inner wall of the installation cavity, reducing the number of times the workers need to replace the material trays in the installation cavity, thereby improving the production efficiency of the workpiece;

[0030] 3. The positioning rod and positioning cylinder are designed to prevent the material frame from shifting within the receiving cavity, thereby improving the stability of the material frame within the receiving cavity. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is a partial cross-sectional view of the machining feeding system in the embodiments of this application, mainly showing the robotic arm.

[0033] Figure 3 This is a schematic diagram of the overall structure of the silo in an embodiment of this application.

[0034] Figure 4 This is a partial cross-sectional view of the machining feeding system in the embodiments of this application, mainly showing the linkage and lifting platform.

[0035] Figure 5 This is a schematic diagram of the overall structure of the lifting platform in the embodiments of this application.

[0036] Figure 6 This is a partial cross-sectional view of the hopper in an embodiment of this application, mainly showing the receiving cavity.

[0037] Figure 7 This is a cross-sectional view of the material frame in an embodiment of this application, mainly showing the load-bearing cavity.

[0038] Figure 8 This is a partial cross-sectional view of the lifting platform in an embodiment of this application, mainly showing the positioning plate.

[0039] Explanation of reference numerals in the attached drawings: 1. Hopper; 11. Fixed platform; 111. Receiving cavity; 112. Positioning hole; 12. Lifting platform; 121. Positioning cavity; 13. Material frame; 131. Mounting cavity; 14. Material tray; 141. Positioning groove; 2. Transport platform; 21. Slide plate; 22. Support column; 3. Robotic arm; 31. Mechanical body; 32. Mounting base; 4. Guide rail; 5. Guide slider; 6. Transmission component; 61. Guide motor 62. Guide gear; 63. Guide rack; 7. Linkage slide rail; 8. Linkage slider; 9. Linkage component; 91. Linkage motor; 92. Linkage screw; 93. Synchronous pulley; 94. Belt; 10. Connecting ring; 101. Threaded groove; 15. Protective cover; 16. Trolley; 17. Iron block protrusion; 18. Positioning rod; 19. Positioning cylinder; 20. Linkage bearing; 23. Limiting component; 231. Limiting clearance; 232. Limiting... 24. Bearing; 241. Baffle; 242. Waist-shaped groove; 243. Load-bearing cavity; 244. Linkage screw; 25. Load-bearing block; 26. Elastic element; 27. Stop block; 28. Abutment block; 29. ​​Starting cylinder; 30. Grabbing boss; 31. Positioning slide rail; 32. Positioning slider; 33. Transmission component; 34. Transmission gear; 35. Transmission rack; 36. Transmission motor; 37. Lifting cylinder; 38. Lifting block; 39. Clamping Holding components; 391, gripping cylinder; 392, gripping block; 3921, fixed cavity; 40, rotating bearing; 41, positioning plate; 411, sliding hole; 412, connecting groove; 42, fixed cylinder; 43, connecting rod; 431, connecting groove; 432, guide surface; 44, deformable component one; 45, fixed plate; 451, fixed section; 452, sliding section; 453, abutment surface; 46, elastic block; 47, deformable component two. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] This application discloses a machining material feeding system. (Refer to...) Figure 1 The machining feeding system includes a hopper 1 and a transport platform 2. The hopper 1 is used to store workpieces. The transport platform 2 connects the hopper 1 and the machining center. A robot arm 3 is slidably connected to the transport platform 2. The robot arm 3 slides towards or away from the hopper 1. When the robot arm 3 slides towards the hopper 1, the gripping end of the robot arm 3 faces the hopper 1. The gripping end of the robot arm 3 grips the workpiece in the hopper 1 and slides towards the machining center, realizing the automatic transportation of the workpiece to be processed between the hopper 1 and the machining center.

[0042] Reference Figure 1The transport platform 2 includes a slide plate 21 and multiple support columns 22. The slide plate 21 is a strip-shaped plate. One end of each support column 22 is fixed to the ground with screws, and the other end of each support column 22 is fixed to the slide plate 21 with screws. The arrangement direction of the support columns 22 on the slide plate 21 is parallel to the length direction of the slide plate 21.

[0043] Reference Figure 1 and Figure 2 The robotic arm 3 includes a mechanical body 31 and a mounting base 32. The mechanical body 31 is fixed to the mounting base 32 by screws. The end face of the slide plate 21 away from the support column 22 is connected to a guide rail 4. The length direction of the guide rail 4 is parallel to the length direction of the slide plate 21. The end face of the mounting base 32 away from the mechanical body 31 is connected to a guide slider 5 that matches the guide rail 4. The guide slider 5 is embedded in the guide rail 4. The mounting base 32 is slidably connected to the slide plate 21 along the length direction of the guide rail 4.

[0044] Reference Figure 1 and Figure 2 A transmission component 6 connects the slide plate 21 and the mounting base 32, and the transmission component 6 is used to drive the mounting base 32 to slide on the slide plate 21. The transmission component 6 includes a guide motor 61, a guide gear 62, and a guide rack 63. The guide rack 63 is fixed to the slide plate 21 by screws. The length direction of the guide rack 63 is parallel to the length direction of the slide plate 21. In this embodiment, the guide motor 61 is a servo motor. The guide motor 61 is fixed to the mounting base 32 by screws, and the motor shaft of the guide motor 61 faces the end face of the slide plate 21. The guide gear 62 is coaxially fixed to the motor shaft of the guide motor 61, and the guide gear 62 meshes with the guide rack 63.

[0045] Reference Figure 2 When the guide motor 61 rotates, it drives the guide gear 62 to rotate, causing the mounting base 32 to slide on the slide plate 21 along the length of the guide rack 63.

[0046] Reference Figure 2 and Figure 3The hopper 1 includes a fixed platform 11, a lifting platform 12, a material frame 13, and multiple material trays 14. The material trays 14 are used to place workpieces, and the material frames 13 are used to place the material trays 14. A sliding plate 21 is fixed to the end face of the fixed platform 11 with screws, connecting the sliding plate 21 and the fixed platform 11. The fixed platform 11 has a receiving cavity 111 on its outer wall facing the machine body 31 to accommodate the material frame 13. The receiving cavity 111 extends through the outer wall of the fixed platform 11 towards the sliding plate 21. A linkage slide rail 7 is connected to the inner wall of the receiving cavity 111 away from the sliding plate 21. The length direction of the linkage slide rail 7 is parallel to the depth direction of the receiving cavity 111. A linkage slider 8 matching the linkage slide rail 7 is connected to the outer wall of the lifting platform 12. The linkage slider 8 is embedded in the linkage slide rail 7. The lifting platform 12 slides along the length direction of the linkage slide rail 7 on the inner wall of the receiving cavity 111, and the sliding direction of the lifting platform 12 is towards or away from the ground.

[0047] Reference Figure 3 and Figure 4 A linkage 9 is connected to the fixed platform 11, which drives the lifting platform 12 to slide along the linkage rail 7. The linkage 9 includes a linkage motor 91, a linkage screw 92, two synchronous pulleys 93, and a belt 94 used in conjunction with the synchronous pulleys 93. In this embodiment, the linkage motor 91 is a stepper motor, which is fixed to the outer wall of the fixed platform 11 by screws. The axis of the linkage motor 91 is parallel to the length direction of the linkage rail 7. The linkage screw 92 is rotatably connected to the inner wall of the receiving cavity 111 along its own axis, and the axis of the linkage screw 92 is parallel to the axis of the linkage motor 91.

[0048] Reference Figure 4 and Figure 5 A connecting ring 10 is fixed to the outer wall of the lifting platform 12 facing the linkage screw 92. The axis of the connecting ring 10 and the axis of the linkage screw 92 are parallel to each other. A threaded groove 101 is coaxially opened on the inner wall of the connecting ring 10. The outer wall of the linkage screw 92 is threadedly connected to the inner wall of the threaded groove 101. One synchronous pulley 93 is coaxially fixed on the motor shaft of the linkage motor 91, and the other synchronous pulley 93 is coaxially fixed on the linkage screw 92. The belt 94 tensions and connects the two synchronous pulleys 93.

[0049] Reference Figure 3 and Figure 4 When the linkage motor 91 is working, it drives the two synchronous pulleys 93 to rotate, causing the lifting platform 12 to move closer to or away from the ground along the axis of the linkage screw 92. A protective cover 15 for shielding the linkage component 9 is connected to the fixed platform 11. The protective cover 15 is fixed to the fixed platform 11 with screws to prevent the synchronous pulleys 93 and the belt 94 from being damaged by external impacts.

[0050] Reference Figure 1 and Figure 3The material frame 13 is slidably connected to the inner wall of the receiving cavity 111, and the sliding direction of the material frame 13 is towards or away from the lifting platform 12. The machining feeding system also includes a trolley 16, the top surface of which is used to place the material frame 13, and the end face of the trolley 16 is connected to an iron block protrusion 17. The inner wall of the receiving cavity 111 facing the iron block has a positioning hole 112 that matches the iron block protrusion 17. When the iron block protrusion 17 is embedded in the positioning hole 112, the end face of the trolley 16 is flush with the bottom wall of the receiving cavity 111, and the material frame 13 slides along the end face of the trolley 16 into the inner wall of the receiving cavity 111, making it convenient to install the material frame 13 in the receiving cavity 111.

[0051] Reference Figure 1 and Figure 6 A positioning rod 18 is connected to the inner wall of the receiving cavity 111. The positioning rod 18 is fixed to the inner wall of the receiving cavity 111 by screws. The positioning rod 18 is located on the side of the lifting platform 12 close to the conveying platform 2. When the material frame 13 slides towards the lifting platform 12, the outer wall of the positioning rod 18 abuts against the outer wall of the material frame 13 to achieve a limit. At the same time, when the lifting platform 12 slides towards the ground, the lifting platform 12 faces the material frame 13.

[0052] Reference Figure 6 A limit switch is connected to the outer wall of the material frame 13, facing the positioning rod 18. A positioning cylinder 19 is connected to the inner wall of the receiving cavity 111. The positioning cylinder 19 is fixed to the inner wall of the receiving cavity 111 by screws, and the piston rod of the positioning cylinder 19 faces the outer wall of the material frame 13. The limit switch 1 is electrically connected to a controller 1, which receives the current from the limit switch 1 and controls the operation of the positioning cylinder 19.

[0053] Reference Figure 6 When the material frame 13 slides towards the lifting platform 12, the outer wall of the material frame 13 abuts against the positioning rod 18 to achieve positioning. At the same time, the limit switch 1 is triggered and turned on. The controller 1 receives the current from the limit switch 1 and controls the positioning cylinder 19 to run. The piston rod of the positioning cylinder 19 presses against the outer wall of the material frame 13 and drives the outer wall of the material frame 13 to press against the inner wall of the receiving cavity 111 to achieve fixation, so that the material frame 13 is not easy to shift in the receiving cavity 111, and the connection stability between the material frame 13 and the fixed platform 11 is improved.

[0054] Reference Figure 6 Each inner wall of the receiving cavity 111 is rotatably connected with a linkage bearing 20. The outer wall of the linkage bearing 20 makes rolling contact with the bottom wall of the material frame 13. Rolling friction replaces sliding friction, thereby reducing the friction between the inner wall of the receiving cavity 111 and the outer wall of the material frame 13 and increasing the service life of the machining feeding system.

[0055] Reference Figure 6The material frame 13 has an installation cavity 131 on its outer wall facing the lifting platform 12. The installation cavity 131 penetrates the outer wall of the material frame 13 in the depth direction. Multiple limiting members 23 are evenly connected on the inner wall of the opposite side of the installation cavity 131. The arrangement direction of the limiting members 23 is parallel to the axis of the linkage screw 92. A limiting gap 231 is left between adjacent limiting members 23 on the same side of the installation cavity 131. When the two ends of the material tray 14 are embedded into the limiting gaps 231 of the same height, the material tray 14 is limited to the inner wall of the installation cavity 131.

[0056] Reference Figure 6 The limiting component 23 includes multiple limiting bearings 232, which are rotatably connected to the inner wall of the mounting cavity 131 along their own axes. The arrangement direction of the limiting bearings 232 is parallel to the depth direction of the mounting cavity 131. The outer wall of the limiting bearings 232 makes rolling contact with the bottom wall of the material tray 14.

[0057] Reference Figure 6 Four baffles 24 are slidably connected to the outer wall of the material frame 13. The sliding direction of the baffles 24 is parallel to the axis of the linkage screw 92. The four baffles 24 are located at the four corners of the material frame 13. The outer wall of the baffles 24 is provided with a waist-shaped groove 241. The depth direction of the waist-shaped groove 241 is parallel to the axis of the limit bearing 232. The depth direction of the waist-shaped groove 241 penetrates the outer wall of the baffles 24. The length direction of the waist-shaped groove 241 is parallel to the axis of the linkage screw 92. A linkage screw 25 is connected to the outer wall of the material frame 13. One end of the linkage screw 25 passes through the waist-shaped groove 241 and is threaded to the outer wall of the material frame 13, so as to realize the sliding connection between the baffles 24 and the material frame 13.

[0058] Reference Figure 7 A load-bearing block 26 is welded and fixed to the outer wall of the material frame 13 facing the baffle 24. A load-bearing cavity 242 is formed on the outer wall of the baffle 24 facing the load-bearing block 26. When the baffle 24 is slidably connected to the outer wall of the material frame 13, the load-bearing block 26 is slidably connected to the inner wall of the load-bearing cavity 242. An elastic element 27 is connected between the outer wall of the load-bearing block 26 and the inner wall of the load-bearing cavity 242. The elastic element 27 can be a compression spring or a torsion spring. In this embodiment, the elastic element 27 is a compression spring, which has a certain deformation capacity. The elastic force of the elastic element 27 drives the baffle 24 to slide away from the ground.

[0059] Reference Figure 6 and Figure 7 Multiple stops 28 are welded and fixed to the outer wall of the mounting cavity 131 on the baffle 24. The stops 28 correspond one-to-one with the limiting members 23. When the elastic member 27 drives the baffle 24 to slide away from the ground, the stops 28 correspond one-to-one with the limiting gaps 231, making it difficult for the material tray 14 to detach from the material frame 13 from the limiting gaps 231, thereby improving the limiting stability of the material tray 14 on the inner wall of the mounting cavity 131.

[0060] Reference Figure 6A stop block 29 is welded and fixed to the outer wall of the baffle 24 away from the stop block 28. A starting cylinder 30 is connected to the inner wall of the receiving cavity 111. The piston rod axis of the starting cylinder 30 is parallel to the sliding direction of the baffle 24, and the piston rod of the starting cylinder 30 faces the stop block 29. The starting cylinder 30 is located on the side of the stop block 29 away from the ground. The controller is electrically connected to the starting cylinder 30. When the material frame 13 slides towards the lifting platform 12, the outer wall of the material frame 13 abuts against the limit switch. The limit switch is triggered and turned on. The controller receives the current from the limit switch and drives the starting cylinder 30 to run. The end of the piston rod of the starting cylinder 30 presses against the outer wall of the stop block 29 and drives the baffle 24 to slide towards the ground. The stop block 28 corresponds one-to-one with the limiting member 23, so that the sealing effect of the stop block 28 on the limiting gap 231 disappears.

[0061] Reference Figure 5 and Figure 6 The end face of the material tray 14 is provided with multiple positioning grooves 141 evenly spaced for placing workpieces. A gripping boss 33 is welded and fixed to the end face of the material tray 14 away from the positioning grooves 141. When both ends of the material tray 14 are inserted into the limiting gaps 231 of the same height, the gripping boss 33 is located on the side of the material tray 14 closer to the lifting platform 12. A positioning cavity 121 is provided on the end face of the lifting platform 12 facing the machine body 31, and the positioning cavity 121 penetrates the outer wall of the lifting platform 12 in the direction close to the material frame 13.

[0062] Reference Figure 1 and Figure 5 A positioning slide rail 34 is connected to the inner wall of the positioning cavity 121 facing the mechanical body 31. The length direction of the positioning slide rail 34 is perpendicular to the axis of the linkage screw 92, and one end of the positioning slide rail 34 faces the material frame 13. A positioning slider 35 is embedded in the outer wall of the positioning slide rail 34. The positioning slider 35 moves closer to or away from the material frame 13 along the length direction of the positioning slide rail 34. A transmission component 36 is connected to the lifting platform 12. The transmission component 36 is used to drive the positioning slider 35 to slide along the length direction of the positioning slide rail 34. The transmission component 36 includes a transmission gear 361, a transmission rack 362, and a transmission motor 363. The transmission rack 362 is fixed to the inner wall of the positioning cavity 121 by screws. The length direction of the transmission rack 362 is parallel to the length direction of the positioning slide rail 34. The transmission motor 363 is fixed to the outer wall of the positioning slider 35 by screws, and the motor shaft of the transmission motor 363 faces the transmission rack 362. The transmission gear 361 is coaxially fixed on the motor shaft of the transmission motor 363, and the transmission gear 361 meshes with the transmission rack 362.

[0063] Reference Figure 5 When the drive motor 363 is working, it drives the drive gear 361 to rotate, causing the positioning slider 35 to slide on the positioning slide rail 34.

[0064] Reference Figure 1 and Figure 5 A lifting cylinder 37 is connected to the end face of the positioning slider 35 facing the mechanical body 31. The piston rod axis of the lifting cylinder 37 and the linkage screw 92 axis are parallel to each other. A lifting block 38 is welded and fixed to the end of the piston rod of the lifting cylinder 37. The lifting cylinder 37 drives the lifting block 38 to move closer to or away from the mechanical body 31.

[0065] Reference Figure 5 and Figure 6 A clamping assembly 39 is connected to the lifting platform 12. The clamping assembly 39 is used to drive the material tray 14 in the mounting cavity 131 to be placed in the positioning cavity 121. The clamping assembly 39 includes a gripping cylinder 391 and a gripping block 392. The gripping cylinder 391 is fixed to the lifting block 38 by screws. The piston rod axis of the gripping cylinder 391 is perpendicular to the piston rod axis of the lifting cylinder 37. The gripping block 392 is welded and fixed to the outer wall of the gripping cylinder 391 away from the lifting cylinder 37. A fixing cavity 3921 is opened on the outer wall of the gripping block 392 away from the gripping cylinder 391. The fixing cavity 3921 penetrates the outer wall of the gripping block 392 in the direction close to the gripping cylinder 391. The fixing cavity 3921 is located on the side of the gripping block 392 close to the material frame 13, and the piston rod of the gripping cylinder 391 is slidably connected to the inner wall of the fixing cavity 3921.

[0066] Reference Figure 5 and Figure 6 When the lifting platform 12 slides towards the ground, the positioning cavity 121, the receiving cavity 111, and the mounting cavity 131 are connected in sequence, and the top surface of the lifting platform 12 is lower than the bottom wall of the material tray 14. The drive motor 363 works, driving the positioning slider 35 to slide along the positioning slide rail 34 towards the material frame 13, causing the gripping block 392 to be positioned below the material tray 14, with the gripping boss 33 facing the fixed cavity 3921. The lifting cylinder 37 drives the gripping cylinder 391 to slide towards the gripping boss 33, gripping... The grabbing boss 33 is located in the fixed cavity 3921. The piston rod end of the grabbing cylinder 391 abuts against the outer wall of the grabbing boss 33, and drives the outer wall of the grabbing boss 33 to abut against the inner wall of the fixed cavity 3921 to form a fixed position. The drive motor 363 works to drive the positioning slider 35 to slide along the positioning slide rail 34 away from the material frame 13, and drive the material tray 14 to slide towards the positioning cavity 121. The outer wall of the material tray 14 abuts against the inner wall of the positioning cavity 121, realizing the automatic sliding of the material tray 14 between the material frame 13 and the lifting platform 12.

[0067] Reference Figure 4 and Figure 5Multiple rotating bearings 40 are evenly spaced and rotatably connected to the inner walls of the positioning cavity 121. The arrangement direction of the rotating bearings 40 is parallel to the length direction of the positioning slide rail 34. The outer walls of the rotating bearings 40 make rolling contact with the bottom wall of the material tray 14, and rolling friction replaces sliding friction, thereby reducing the friction between the lifting platform 12 and the material tray 14. A positioning plate 41 is welded and fixed to the inner walls of the positioning cavity 121, and the positioning plate 41 is located on the side of the rotating bearing 40 near the linkage screw 92.

[0068] Reference Figure 5 and Figure 6 When the clamping assembly 39 drives the tray 14 in the mounting cavity 131 into the positioning cavity 121, the outer wall of the tray 14 abuts against the outer wall of the positioning plate 41 to form a limit, making the tray 14 less likely to shift within the positioning cavity 121, thereby improving the limiting stability of the tray 14 on the inner wall of the positioning cavity 121.

[0069] Reference Figure 5 The positioning plate 41 is connected to the outer wall of the rotating bearing 40 by a limit switch 2, which is electrically connected to a controller 2. The lifting platform 12 is connected to a fixed cylinder 42, which is electrically connected to the controller 2. The piston rod end of the fixed cylinder 42 passes through the lifting platform 12 and is located in the positioning cavity 121.

[0070] Reference Figure 5 and Figure 6 When the clamping assembly 39 drives the tray 14 in the mounting cavity 131 into the positioning cavity 121, the outer wall of the tray 14 abuts against the limit switch 2. The limit switch 2 is triggered and turned on. The controller 2 receives the current from the limit switch 2 and controls the fixed cylinder 42 to run. The piston rod of the fixed cylinder 42 presses against the outer wall of the tray 14 and drives the outer wall of the tray 14 to press against the inner wall of the positioning cavity 121 to achieve fixation, so that the tray 14 is not easy to shift in the positioning cavity 121, thereby improving the connection stability of the tray 14 on the lifting platform 12.

[0071] Reference Figure 5 and Figure 8 The positioning plate 41 has a sliding hole 411 on its outer wall facing the rotating bearing 40. A connecting rod 43 is connected to the positioning plate 41. The connecting rod 43 is slidably connected to the inner wall of the sliding hole 411. The sliding direction of the connecting rod 43 is parallel to the axis of the sliding hole 411, and the end of the connecting rod 43 facing the rotating bearing 40 is used to abut against the outer wall of the tray 14. A deformation element 44 is welded and fixed to the inner wall of the sliding hole 411 and the outer wall of the connecting rod 43. The deformation element 44 can be a compression spring or a torsion spring. In this embodiment, the deformation element 44 is a compression spring and has a certain deformation capacity. The elastic force of the deformation element 44 drives the connecting rod 43 to slide away from the positioning plate 41.

[0072] Reference Figure 5 and Figure 8A connecting groove 431 is provided on the outer wall of the connecting rod 43, and the connecting groove 431 penetrates the outer wall of the connecting rod 43. A guide surface 432 is provided on the inner wall of the connecting groove 431 away from the rotating bearing 40. The inclination height of the guide surface 432 decreases as the distance to the rotating bearing 40 decreases. A fixing plate 45 is connected to the connecting rod 43. The fixing plate 45 includes a fixing section 451 and a sliding section 452. The ends of the fixing section 451 and the sliding section 452 are fixed. Both the fixing section 451 and the sliding section 452 are strip plates. The length direction of the fixing section 451 and the length direction of the sliding section 452 are perpendicular to each other.

[0073] Reference Figure 6 and Figure 8 A connecting groove 412 is formed on the inner wall of the sliding hole 411 facing the connecting groove 431. The connecting groove 412 connects to the connecting groove 431 and is a strip-shaped groove. The length direction of the connecting groove 412 is parallel to the axis of the linkage screw 92. The length direction of the connecting groove 412 extends through the outer wall of the positioning plate 41. The end of the sliding section 452 away from the fixed section 451 passes through the connecting groove 412 and is slidably connected to the inner wall of the connecting groove 431. An abutment surface 453 matching the guide surface 432 is connected to the outer wall of the sliding section 452 facing the guide surface 432. The abutment surface 453 abuts against the guide surface 432. The sliding direction of the sliding section 452 and the inclination direction of the abutment surface 453 are parallel to each other. An elastic block 46 is connected to the outer wall of the fixed section 451 facing the rotating bearing 40. The material of the elastic block 46 can be rubber or silicone. In this embodiment, the material of the elastic block 46 is silicone, which has a certain deformation capability. The elastic block 46 is located away from the outer wall of the fixed section 451 and is used to press against the outer wall of the material tray 14.

[0074] Reference Figure 6 and Figure 8 A second deformable element 47 is welded and fixed to the outer wall of the sliding section 452 away from the fixed section 451 and the inner wall of the sliding hole 411. The elastic force of the first deformable element 44 is greater than that of the second deformable element 47. The direction of the elastic force of the second deformable element 47 is parallel to the axis of the linkage screw 92. The second deformable element 47 can be a compression spring or a torsion spring. In this embodiment, the second deformable element 47 is a compression spring and has a certain deformation capacity. The elastic force of the second deformable element 47 drives the fixed section 451 to slide closer to the material tray 14.

[0075] Reference Figure 5 and Figure 8 When the material tray 14 is located in the positioning cavity 121 and the outer wall of the material tray 14 abuts against the outer wall of the connecting rod 43, the material tray 14 drives the connecting rod 43 to slide towards the positioning plate 41, which in turn drives the sliding section 452 to slide along the guide surface 432 towards the material tray 14, drives the fixing section 451 to slide towards the material tray 14, and the outer wall of the elastic block 46 abuts against the outer wall of the material tray 14 to form a fixed position.

[0076] The implementation principle of a machining feeding system according to an embodiment of this application is as follows: When the machining feeding system is in use, the bottom wall of the material frame 13 rolls into contact with the outer wall of the linkage bearing 20 and slides towards the lifting platform 12. The outer wall of the material frame 13 abuts against the positioning rod 18 to achieve positioning. At the same time, the limit switch 1 is triggered and turned on. The controller 1 receives the current from the limit switch 1 and controls the positioning cylinder 19 to run. The piston rod of the positioning cylinder 19 presses against the outer wall of the material frame 13 and drives the outer wall of the material frame 13 to press against the inner wall of the receiving cavity 111 to achieve fixation, so that the material frame 13 is not easy to shift within the receiving cavity 111.

[0077] Simultaneously, the controller receives the current from limit switch 1 and drives the starting cylinder 30 to operate. The piston rod end of the starting cylinder 30 presses against the outer wall of the abutment block 29 and drives the baffle 24 to slide towards the ground. The stop block 28 corresponds one-to-one with the limiting member 23, so that the sealing effect of the stop block 28 on the limiting gap 231 disappears. The linkage motor 91 works, driving the two synchronous wheels 93 to rotate, driving the lifting platform 12 to slide towards the ground along the axis of the linkage screw 92. The positioning cavity 121, the receiving cavity 111, and the mounting cavity 131 are connected in sequence, and the top surface of the lifting platform 12 is lower than the bottom wall of the material tray 14. The drive motor 363 works, driving the positioning slider 35 to slide towards the material frame 13 along the positioning slide rail 34. The gripping block 392 is positioned below the material tray 14, with the gripping boss 33 facing the fixed cavity 3921. The lifting cylinder 37 drives the gripping cylinder 391 to slide towards the gripping boss 33. The gripping boss 33 is located inside the fixed cavity 3921. The piston rod end of the gripping cylinder 391 abuts against the outer wall of the gripping boss 33, and drives the outer wall of the gripping boss 33 to abut against the inner wall of the fixed cavity 3921 to form a fixed position. The drive motor 363 drives the positioning slider 35 to slide along the positioning slide rail 34 away from the material frame 13, driving the material tray 14 to slide towards the positioning cavity 121. The bottom wall of the material tray 14 rolls into contact with the outer wall of the rotating bearing 40, realizing the automatic sliding of the material tray 14 on the material frame 13 and the lifting platform 12.

[0078] Simultaneously, the outer wall of the material tray 14 abuts against the second limit switch, triggering and turning on the second limit switch. The second controller receives the current from the second limit switch and controls the operation of the fixed cylinder 42. The piston rod of the fixed cylinder 42 presses against the outer wall of the material tray 14 and drives the outer wall of the material tray 14 to press against the inner wall of the positioning cavity 121 to achieve fixation. The outer wall of the material tray 14 abuts against the outer wall of the connecting rod 43, and the material tray 14 drives the connecting rod 43 to slide towards the positioning plate 41, driving the sliding section 452 to slide along the guide surface 432 towards the material tray 14, driving the fixed section 451 to slide towards the material tray 14, and the outer wall of the elastic block 46 presses against the outer wall of the material tray 14 to form a fixation, further improving the connection stability of the material tray 14 on the lifting platform 12.

[0079] The lifting platform 12 slides away from the ground, and the positioning groove 141 on the material tray 14, where the workpiece is placed, faces the clamping end of the machine body 31. The clamping end of the machine body 31 clamps the workpiece in the positioning groove 141. The guide motor 61 works, driving the robot arm 3 to slide towards the machining center, thereby realizing the automatic transportation of workpieces between the material storage area and the machining center. There is no need for staff to transport the workpieces back and forth between the material storage area and the machining center, thereby reducing the workload of the staff, improving the work efficiency of the staff, and improving the processing efficiency of the workpieces.

[0080] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machining material feeding system, characterized in that: The system includes a hopper and a transport platform, the transport platform connecting the hopper and a machining center. The hopper is used to place workpieces. A robotic arm is connected to the transport platform, with its gripping end facing the hopper. A transfer mechanism connects the transport platform and the robotic arm, driving the robotic arm closer to or away from the hopper. When the robotic arm's gripping end holds a workpiece in the hopper, the transfer mechanism drives the robotic arm holding the workpiece to slide closer to the machining center. The hopper includes a fixed platform, a lifting platform, a tray, and a material frame. The fixed platform has a receiving cavity for accommodating the material frame, and the material frame has... The device includes a mounting cavity for storing a material tray, on which multiple positioning slots for placing workpieces are provided. The mounting cavity connects to a receiving cavity. A lifting platform is slidably connected to the inner wall of the receiving cavity. A clamping assembly is connected to the lifting platform, comprising a gripping cylinder and a gripping block. The gripping block is connected to the gripping cylinder, which is slidably connected to the lifting platform. A positioning cavity for receiving the material tray is formed on the outer wall of the lifting platform facing the robot arm. A positioning plate is connected to the inner wall of the positioning cavity, and a connecting rod is slidably connected to the positioning plate. A sliding section is formed on the positioning plate facing the outer wall of the material frame. The connecting rod is slidably connected to the inner wall of the sliding hole. A deformation component is welded and fixed to the inner wall of the sliding hole and the outer wall of the connecting rod. The deformation component's elasticity drives the connecting rod to slide away from the positioning plate. A connecting groove is formed on the outer wall of the connecting rod, penetrating the outer wall. A guide surface is provided on the inner wall of the connecting groove away from the material frame. The inclination height of the guide surface decreases as the distance to the material frame decreases. A fixing plate is slidably connected to the inner wall of the positioning groove. The fixing plate includes a fixed section and a sliding section. The ends of the fixed section and the sliding section are fixed. The sliding section is located away from the fixed section. The end is provided with a connecting groove and is slidably connected to the inner wall of the connecting groove. The outer wall of the sliding section facing the guide surface is connected to an abutment surface that matches the guide surface. The abutment surface abuts against the guide surface. The sliding direction of the sliding section and the inclination direction of the abutment surface are parallel to each other. The outer wall of the fixed section facing the material frame is connected to an elastic block. The elastic block is used to abut against the outer wall of the material tray away from the fixed section. The outer wall of the sliding section away from the fixed section is welded and fixed to the inner wall of the sliding hole with a second deformation component. The elastic force of the first deformation component is greater than the elastic force of the second deformation component. The elastic force of the second deformation component drives the fixed section to slide towards the material tray.

2. The machining feeding system according to claim 1, characterized in that: The sliding direction of the lifting platform (12) is towards or away from the robot (3). The clamping assembly (39) is used to drive the tray (14) in the mounting cavity (131) to be placed on the lifting platform (12). When the lifting platform (12) slides away from the robot (3), the clamping assembly (39) clamps the tray (14) in the mounting cavity (131) and enters the lifting platform (12). The lifting platform (12) slides towards the robot (3), and the tray (14) on the lifting platform (12) faces the clamping end of the robot (3).

3. The machining feeding system according to claim 2, characterized in that: Multiple limiting members (23) are spaced apart on the inner walls of the mounting cavity (131). A limiting gap (231) is left between adjacent limiting members (23) on the same side of the mounting cavity (131). When the two ends of the material tray (14) are embedded into the limiting gap (231) of the same height, the material tray (14) is limited to the inner wall of the mounting cavity (131).

4. The machining feeding system according to claim 2, characterized in that: The inner wall of the receiving cavity (111) is connected to a positioning rod (18) and a positioning cylinder (19). When the material frame (13) is located on the inner wall of the receiving cavity (111) and the outer wall of the material frame (13) abuts against the outer wall of the positioning rod (18), the piston rod end of the positioning cylinder (19) abuts against the outer wall of the material frame (13) to form a fixed position.

5. The machining feeding system according to claim 3, characterized in that: A baffle (24) is slidably connected to the outer wall of the material frame (13). The sliding direction of the baffle (24) is parallel to the sliding direction of the lifting platform (12). Multiple blocks (28) are connected to the outer wall of the baffle (24) facing the mounting cavity (131). The blocks (28) correspond one-to-one with the limiting gaps (231). When the baffle (24) slides towards the ground, the blocks (28) correspond one-to-one with the limiting components (23), and the sealing effect of the limiting gaps (231) disappears. When the baffle (24) slides away from the ground, the blocks (28) correspond one-to-one with the limiting gaps (231), and the material tray (14) is limited to the limiting gaps (231).

6. The machining feeding system according to claim 5, characterized in that: An elastic element (27) is connected between the baffle (24) and the material frame (13), and the elastic element (27) has a tendency to drive the baffle (24) to slide away from the ground.

7. The machining feeding system according to claim 5, characterized in that: The baffle (24) is connected to the outer wall of the receiving cavity (111) with an abutment block (29). The inner wall of the receiving cavity (111) is connected to a starting cylinder (30). When the piston rod of the starting cylinder (30) presses against the outer wall of the abutment block (29) and drives the baffle (24) to slide towards the ground, the stop block (28) corresponds to the limiting member (23) one by one, and the sealing effect of the limiting gap (231) disappears.

8. The machining feeding system according to claim 2, characterized in that: The sliding direction of the gripping cylinder (391) is closer to or farther away from the material frame (13). The end face of the material tray (14) away from the positioning groove (141) is connected to a gripping boss (33). The end face of the gripping block (392) is provided with a fixed cavity (3921) for accommodating the gripping boss (33). The piston rod of the gripping cylinder (391) is located in the fixed cavity (3921).

9. The machining feeding system according to claim 2, characterized in that: A fixing cylinder (42) is connected to the inner wall of the positioning cavity (121). When the clamping assembly (39) drives the material tray (14) to be located in the positioning cavity (121), the outer wall of the material tray (14) abuts against the outer wall of the positioning plate (41), and the piston rod of the fixing cylinder (42) abuts against the outer wall of the material tray (14), and drives the outer wall of the material tray (14) to abut against the inner wall of the positioning cavity (121) to form a fixation.

10. The machining feeding system according to claim 9, characterized in that: When the outer wall of the tray (14) abuts against the end of the connecting rod (43) and drives the connecting rod (43) to slide towards the positioning plate (41), the fixing plate (45) slides along the guide surface (432) towards the tray (14), and the end face of the fixing plate (45) abuts against the end face of the tray (14) to form a fixation.

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