Aircraft spar body efficient machining device and machining deformation preventing method

Abstract

The invention discloses an aircraft spar body efficient machining device and a machining deformation prevention method.The aircraft spar body efficient machining device comprises a machining assembly and a platform assembly, the platform assembly is arranged below the machining assembly, the aircraft spar body efficient machining device is characterized in that a turnover type adsorption fixing part is arranged on the platform assembly, and a feeding and discharging structure part is arranged below the turnover type adsorption fixing part. The device has the beneficial effects that according to the technical scheme, the surface of a part is fixed in an adsorption mode, in the metal removal process, the adsorption strength is continuously enhanced, the part is more stable and firmer, meanwhile, in the machining part replacement process, full-automatic feeding and discharging equipment is adopted, the automation degree of a machining line can be improved, and meanwhile, the electric control system is matched, so that the production efficiency is improved. And the processing equipment can continuously work, so that the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of aerospace parts processing, and in particular to a high-efficiency processing device for aircraft wing spars and a method for preventing processing deformation. Background Technology

[0002] When aircraft wing spars are made of 7050-T7451 high-strength aluminum alloy, the metal removal rate is about 95%, which makes them prone to deformation during processing. It is difficult to guarantee the thickness of the web and the wall thickness. Therefore, a special fixture is required for fixing. Traditional fixtures use a mechanical fixing structure, which usually clamps the two ends. Therefore, clamping deformation is prone to occur during processing. Or, after processing, the clamped part needs to be removed to obtain the part. Therefore, the processing procedure is complicated. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by designing an efficient processing device for aircraft wing spars and a method for preventing processing deformation.

[0004] The technical solution of the present invention to achieve the above objectives is a high-efficiency processing device for aircraft wing spars and a method for preventing processing deformation, comprising a processing component and a platform component. The platform component is disposed below the processing component, and a flip-type adsorption fixing part is provided on the platform component. A loading and unloading structure part is provided below the flip-type adsorption fixing part.

[0005] The flip-type adsorption and fixation unit consists of a gas path system, a flipping platform, and a rejection platform.

[0006] The platform component includes at least a platform with an opening on the platform. The tilting platform is mounted in the opening via a shaft and driven by a motor. The tilting platform consists of a rectangular support block and multiple adsorption holes at the upper and lower ends of the support block. The air passage system is connected to the support block, and the removal platform is located inside the support block.

[0007] The loading and unloading structure is located below the tilting platform. One side of the structure is used to convey the material to be processed, and the other side is used to remove the processed material from the tilting platform.

[0008] The loading and unloading structure includes: a feeding conveyor, a receiving conveyor, a loading robotic arm, a picking robotic arm, and a composite loading and unloading assembly.

[0009] The feeding conveyor and receiving conveyor are located inside the platform and extend to one side. The loading robotic arm and the unloading robotic arm are respectively located on one side of the feeding conveyor and the receiving conveyor. The composite loading and unloading assembly is located in the middle of the feeding conveyor and the receiving conveyor, so as to adsorb the material to be processed and the processed parts by changing different adsorption structures.

[0010] Preferably, the rejection platform includes: a mounting beam, a bidirectional telescopic motor, and a set of rejection plates;

[0011] The mounting beam is set in the tilting platform, the bidirectional telescopic motor is set on the mounting beam, and a set of rejection plates is set on the telescopic end of the bidirectional telescopic motor. The rejection plates are provided with protrusions corresponding to the air holes on the end face of the tilting platform.

[0012] Once the parts on the flipping platform have been processed, the rejection plate will remove the parts from the other side of the flipping platform.

[0013] Preferably, the composite loading and unloading assembly includes: a lifting motor, a sliding platform, a slide table, an L-shaped load-bearing and limiting multi-purpose platform, a pulley block, a stepper motor, a removal telescopic motor, a removal top block, and a flip-plate load-bearing platform;

[0014] The receiving conveyor is installed at an angle inside the processing assembly, with one end extending out of it. The lifting motor is located between the feeding conveyor and the receiving conveyor, and its telescopic end is connected to the sliding platform.

[0015] The slide table is set on the sliding platform. An installation groove is provided inside the slide table, and the removal telescopic motor is located therein. The top block is installed on the telescopic end of the removal telescopic motor. An arc-shaped groove is provided on the opposite side inside the slide table, and the pulley group is set in the arc-shaped groove. The pulley group is connected to the L-type load-bearing and limiting multi-purpose platform through a shaft. One end of the shaft extends out of the slide table and is connected to the stepper motor.

[0016] A bearing is provided at the part of the shaft extending out of the slide table. A limiting body is fitted on the bearing. The limiting body is provided with a magnetic absorbing plate. On the outer wall of the slide table, limiting electromagnets are also provided at the corresponding positions near the two ends of the arc-shaped groove, so as to achieve the attraction of the magnetic absorbing plate and thus control the position of the L-type load-bearing limiting multi-purpose platform.

[0017] The L-shaped load-bearing and limiting multi-purpose platform has a notch frame on one of its load-bearing surfaces. The flip-plate load platform is movably connected to the notch frame. After the flip-plate load platform surface is facing upwards, the top block can be pushed by the removal telescopic motor to flip the flip-plate load platform over, allowing the material on it to be transferred onto the receiving conveyor.

[0018] Preferably, the machining component is a multi-axis milling and turning system.

[0019] Preferably, the pneumatic system includes: a Y-shaped air tube, a pair of solenoid valves, an air pump, and a main valve;

[0020] Inside the flipping platform, air chambers are provided at the platform end. The Y-shaped air pipes are connected to a set of air chambers inside the flipping platform. A pair of solenoid valves are provided on the branches of the Y-shaped air pipes. The other end of the Y-shaped air pipes is connected to the air pump through a main valve.

[0021] Preferably, the outer wall of the slide is provided with an arc-shaped track for the movement of the limiting body.

[0022] Preferably, the arc-shaped track and the arc-shaped groove are parallel to each other.

[0023] Preferably, the loading robotic arm adopts a clamping gripper structure.

[0024] Preferably, the material handling robotic arm is a suction cup type robotic hand.

[0025] A method for preventing deformation of an aircraft wing spars during manufacturing includes the following steps:

[0026] S1: The material is conveyed to the composite loading and unloading assembly by the feeding conveyor. The composite loading and unloading assembly pushes the parts to be processed upwards. The flipping platform has suction holes to suction the parts to be processed. Driven by the motor, the flipping platform flips and is processed by the processing assembly. At the same time, the feeding conveyor continues to feed the material while the parts are being processed. The composite loading and unloading assembly continues to push the parts to be processed upwards and the other side of the flipping platform continues to suction the parts to be processed. After the parts on the other side of the flipping platform are processed, the flipping platform flips and the parts on the other side continue to be processed. The composite loading and unloading assembly pushes the material to the feeding assembly and sends out the finished parts.

[0027] S2: After the flipping platform completes one part processing, it needs to be flipped 360 degrees so that the processed part is facing downwards. The lifting motor then lifts the sliding platform, bringing the slide table on the sliding platform close to the part. Subsequently, the stepper motor is started, and the L-type load-bearing and limiting multi-purpose platform is rotated at a certain angle through the shaft so that one side of the L-type load-bearing and limiting multi-purpose platform faces the part. The rejection platform in the flipping platform rejects the part, so that the part falls on the flip plate bearing platform in the L-type load-bearing and limiting multi-purpose platform. Then, the removal telescopic motor set inside the slide table is started. The removal telescopic motor lifts the flip plate bearing platform on the L-type load-bearing and limiting multi-purpose platform through the top block, so that the part on it falls onto the receiving conveyor.

[0028] S3: The L-type load-bearing and limiting multi-purpose platform needs to rotate at a certain angle. A bearing is provided at the part of the shaft extending out of the slide table. A limiting body is fitted on the bearing. The limiting body is provided with a magnetic absorbing plate. On the outer wall of the slide table, limiting electromagnets are also provided at the corresponding positions near the two ends of the arc-shaped groove to achieve the attraction of the magnetic absorbing plate, thereby controlling the position of the L-type load-bearing and limiting multi-purpose platform.

[0029] The present invention discloses a high-efficiency processing device for aircraft wing spars and a method for preventing processing deformation. The present invention uses adsorption to fix the surface of the parts. During the process of removing metal, the adsorption force is continuously enhanced, making the parts more stable and firm. At the same time, fully automatic loading and unloading equipment is used in the process of changing processed parts, which can improve the automation level of the processing line. With the help of the electronic control system, the processing equipment can operate continuously and improve production efficiency. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an efficient processing device for aircraft wing spars and a method for preventing processing deformation, as described in this invention.

[0031] Figure 2 This is a schematic diagram of the composite loading and unloading assembly described in this invention;

[0032] Figure 3 This is a partial top view of the composite loading and unloading assembly described in this invention.

[0033] Figure 4 This is a partially enlarged structural schematic diagram of the high-efficiency processing device for aircraft wing spars described in this invention;

[0034] Figure 5 This is a partially enlarged structural schematic diagram of the high-efficiency processing device for aircraft wing spars described in this invention;

[0035] Figure 6 This is a partially enlarged structural schematic diagram of the high-efficiency processing device for aircraft wing spars described in this invention;

[0036] Figure 7 This is a partially enlarged structural schematic diagram of the high-efficiency processing device for aircraft wing spars described in this invention;

[0037] In the diagram, 1. Support block, 2. Removal platform, 3. Pneumatic system, 4. Adsorption hole, 5. Feeding conveyor, 6. Receiving conveyor, 7. Mounting beam, 8. Bidirectional telescopic motor, 9. A set of removal plates, 10. Protrusion, 11. Lifting motor, 12. Sliding platform, 13. Slide table, 14. L-shaped load-bearing and limiting multi-purpose platform, 15. Pulley block, 16. Stepper motor, 17. Removal telescopic motor, 18. Removal top block, 19. Flip plate load-bearing platform, 20. Mounting groove, 21. Arc-shaped groove, 22. Limiting body, 23. Magnetic suction plate, 24. Y-shaped air pipe, 25. Solenoid valve, 26. Main valve, 27. Arc-shaped track, 28. Electromagnet. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-7 As shown, an efficient processing device for aircraft wing spars and a method for preventing processing deformation are disclosed.

[0039] A high-efficiency processing device for aircraft wing spars and a method for preventing processing deformation include a processing component and a platform component. The platform component is located below the processing component. A flip-type adsorption and fixing part is provided on the platform component, and a loading and unloading structure part is provided below the flip-type adsorption and fixing part.

[0040] The flip-type adsorption and fixation unit consists of a gas path system 3, a flipping platform, and a rejection platform 2;

[0041] The platform component includes at least a platform with an opening on the platform. The tilting platform is installed in the opening via a shaft and is driven by a motor. The tilting platform consists of a rectangular support block 1 and multiple adsorption holes 4 at the upper and lower ends of the support block 1. The air passage system 3 is connected to the support block 1. The removal platform 2 is located inside the support block 1.

[0042] The loading and unloading structure is located below the tilting platform. One side of the structure is used to convey the material to be processed, and the other side is used to remove the processed material from the tilting platform.

[0043] The loading and unloading structure includes: a feeding conveyor 5, a receiving conveyor 6, a loading robotic arm, a picking robotic arm, and a composite loading and unloading assembly;

[0044] The loading and unloading structure includes: a feeding conveyor 5, a receiving conveyor 6, a loading robotic arm, a picking robotic arm, and a composite loading and unloading assembly;

[0045] The feeding conveyor 5 and the receiving conveyor 6 are located inside the platform and extend to one side. The loading robotic arm and the unloading robotic arm are respectively located on one side of the feeding conveyor 5 and the receiving conveyor 6. The composite loading and unloading assembly is located in the middle of the feeding conveyor 5 and the receiving conveyor 6, so as to adsorb the material to be processed and the processed parts by changing different adsorption structures.

[0046] Specifically, this technical solution is used to process the wing spars of small aircraft. Since they are relatively thin after most of the metal is removed, traditional clamping fixing devices are prone to deformation during processing. Therefore, this technical solution adopts an adsorption fixing device. Considering that the equipment should achieve automated production, a fully automatic loading and unloading production equipment is configured, and a flip-type adsorption fixing part is designed to meet the processing requirements and cooperate with the loading and unloading equipment.

[0047] It should be noted that in actual use, the material is conveyed to the composite loading and unloading assembly by the feeding conveyor 5. The composite loading and unloading assembly pushes the parts to be processed upwards. The flipping platform has adsorption holes 4 to adsorb the parts to be processed. Driven by the motor, the flipping platform flips and is processed by the processing assembly. At the same time, while the parts are being processed, the feeding conveyor 5 continues to feed the material, and the composite loading and unloading assembly continues to push the parts to be processed upwards. The other side of the flipping platform continues to adsorb the parts to be processed. After the parts on the other side of the flipping platform are processed, the flipping platform flips and the parts on the other side continue to be processed. The composite loading and unloading assembly pushes the material to the feeding assembly and sends out the finished parts.

[0048] Specifically, the rejection platform 2 includes: mounting beam 7, bidirectional telescopic motor 8, and a set of rejection plates 9.

[0049] The mounting beam 7 is set in the tilting platform, the bidirectional telescopic motor 8 is set on the mounting beam 7, and a set of rejection plates 9 are set on the telescopic end of the bidirectional telescopic motor 8. The rejection plates are provided with protrusions 10 corresponding to the air holes on the end face of the tilting platform.

[0050] Once the parts on the flipping platform have been processed, the rejection plate will remove the parts from the other side of the flipping platform, and then work with the composite loading and unloading assembly to operate the parts.

[0051] Specifically, the composite loading and unloading assembly includes: a lifting motor 11, a sliding platform 12, a slide table 13, an L-shaped load-bearing and limiting multi-purpose platform 14, a pulley block 15, a stepper motor 16, a removal telescopic motor 17, a removal top block 18, and a flip-plate load-bearing platform 19.

[0052] The receiving conveyor 6 is installed at an angle inside the processing assembly, with one end extending out of it. The lifting motor 11 is located between the feeding conveyor 5 and the receiving conveyor 6, and its telescopic end is connected to the sliding platform 12.

[0053] The slide table 13 is set on the sliding platform 12. An installation groove 20 is provided inside the slide table 13, in which the removal telescopic motor 17 is located. The top block is installed on the telescopic end of the removal telescopic motor 17. An arc-shaped groove 21 is provided on the opposite side inside the slide table 13. The pulley group 15 is set in the arc-shaped groove 21. The pulley group 15 is connected to the L-type load-bearing and limiting multi-purpose platform 14 through a shaft. One end of the shaft extends out of the slide table 13 and is connected to the stepper motor 16.

[0054] One of the bearing surfaces of the L-type bearing and limiting multi-purpose platform 14 is provided with a notch frame. The flip-plate bearing platform 19 is movably connected to the notch frame. After the flip-plate bearing platform 19 is facing upward, the top block can be pushed by the removal telescopic motor 17 to flip the flip-plate bearing platform 19 over, so that the material on it is flipped into the receiving conveyor 6.

[0055] Specifically, after the flipping platform completes one part processing, it needs to be flipped 360 degrees so that the processed part is facing downwards. The lifting motor 11 then lifts the sliding platform 12, bringing the slide table 13 on the sliding platform 12 closer to the part. Subsequently, the stepper motor 16 is started, and the L-type load-bearing and limiting multi-purpose platform 14 is rotated at a certain angle through the shaft so that one side of the L-type load-bearing and limiting multi-purpose platform 14 faces the part. The rejection platform 2 in the flipping platform rejects the part, so that the part falls onto the flip plate support table 19 in the L-type load-bearing and limiting multi-purpose platform 14. Then, the removal telescopic motor 17, which is set inside the slide table 13, is started. The removal telescopic motor 17 lifts the flip plate support table 19 on the L-type load-bearing and limiting multi-purpose platform 14 through the top block, so that the part on it falls onto the receiving conveyor 6.

[0056] More specifically, since the L-type load-bearing and limiting multi-purpose platform 14 needs to rotate at a certain angle and be fixed in a specific position, this technical solution also adds a limiting structure. Specifically, a bearing is provided at the part of the shaft extending out of the slide table 13, and a limiting body 22 is fitted on the bearing. The limiting body 22 is provided with a magnetic absorbing piece 23. On the outer wall surface of the slide table 13, and corresponding to the two ends of the arc-shaped groove 21, limiting electromagnets 28 are also provided to attract the magnetic absorbing piece 23, thereby controlling the position of the L-type load-bearing and limiting multi-purpose platform 14.

[0057] It should be noted that when the L-type load-bearing and limiting multi-purpose platform 14 is driven by the stepper motor 16 and is at a certain angle, the limiting electromagnet 28 will move with the shaft because it is mounted on the shaft through bearings. The L-type load-bearing and limiting multi-purpose platform 14 needs to be fixed in two positions. Therefore, the limiting electromagnet 28 is only provided on the outer wall of the slide table 13 and at the two ends of the arc-shaped groove 21 respectively. When it is necessary to fix the L-type load-bearing and limiting multi-purpose platform 14, the limiting electromagnet 28 is energized and can fix the magnetic absorbing piece 23 located on the limiting body 22, thereby fixing the L-type load-bearing and limiting multi-purpose platform 14.

[0058] It should be noted that the purpose of adopting the L-shaped load-bearing and limiting multi-purpose platform 14 in this technical solution is that, since the parts to be processed and the parts after processing have changes in weight and shape, the L-shaped structure is adopted, with the long side surface used to support the parts to be processed and the short side surface supporting the parts after processing.

[0059] Specifically, the machining components are multi-axis milling and turning systems.

[0060] Specifically, the pneumatic system 3 includes: a Y-shaped air tube 24, a pair of solenoid valves 25, an air pump, and a main valve 26;

[0061] Inside the tilting platform, air chambers are provided at the platform end. Y-shaped air pipes 24 are connected to a set of air chambers inside the tilting platform. A pair of solenoid valves 25 are provided on the branches of the Y-shaped air pipes 24. The other end of the Y-shaped air pipes 24 is connected to the air pump through the main valve 26.

[0062] This setup is designed to accommodate the adsorption structures on both sides of the flipping platform. Gas chambers are provided on each side of the flipping platform, and the flow of gas is controlled by a pair of solenoid valves 25.

[0063] Specifically, the outer wall of the slide table 13 is provided with an arc-shaped track 27 for the movement of the limiting body 22.

[0064] Specifically, the arc-shaped track 27 and the arc-shaped groove 21 are parallel to each other.

[0065] Specifically, the loading robotic arm adopts a clamping gripper structure.

[0066] Specifically, the material handling robotic arm uses a suction cup-type robotic hand.

[0067] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A high-efficiency machining device and method for preventing machining deformation of an aircraft wing spars, comprising a machining component and a platform component, wherein the platform component is disposed below the machining component, characterized in that, The platform component is provided with a flip-type adsorption and fixing part, and a loading and unloading structure part is provided below the flip-type adsorption and fixing part. The flip-type adsorption and fixation unit consists of a gas path system, a flipping platform, and a rejection platform. The platform component includes at least a platform with an opening on the platform. The tilting platform is mounted in the opening via a shaft and driven by a motor. The tilting platform consists of a rectangular support block and multiple adsorption holes at the upper and lower ends of the support block. The air passage system is connected to the support block, and the removal platform is located inside the support block. The loading and unloading structure is located below the tilting platform. One side of the structure is used to convey the material to be processed, and the other side is used to remove the processed material from the tilting platform. The loading and unloading structure includes: a feeding conveyor, a receiving conveyor, a loading robotic arm, a picking robotic arm, and a composite loading and unloading assembly. The feeding conveyor and receiving conveyor are located inside the platform and extend to one side. The loading robotic arm and unloading robotic arm are respectively located on one side of the feeding conveyor and receiving conveyor. The composite loading and unloading assembly is located in the middle of the feeding conveyor and receiving conveyor to adsorb the material to be processed and the processed parts by changing different adsorption structures.

2. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 1, characterized in that, The rejection platform includes: a mounting beam, a bidirectional telescopic motor, and a set of rejection plates; The mounting beam is set in the tilting platform, the bidirectional telescopic motor is set on the mounting beam, and a set of rejection plates is set on the telescopic end of the bidirectional telescopic motor. The rejection plates are provided with protrusions corresponding to the air holes on the end face of the tilting platform. Once the parts on the flipping platform have been processed, the rejection plate will remove the parts from the other side of the flipping platform.

3. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 2, characterized in that, The composite loading and unloading assembly includes: a lifting motor, a sliding platform, a slide table, an L-shaped load-bearing and limiting multi-purpose platform, a pulley block, a stepper motor, a removal telescopic motor, a removal top block, and a flip-plate load-bearing platform; The receiving conveyor is installed at an angle inside the processing assembly, with one end extending out of it. The lifting motor is located between the feeding conveyor and the receiving conveyor, and its telescopic end is connected to the sliding platform. The slide table is set on the sliding platform. An installation groove is provided inside the slide table, and the removal telescopic motor is located therein. The top block is installed on the telescopic end of the removal telescopic motor. An arc-shaped groove is provided on the opposite side inside the slide table, and the pulley group is set in the arc-shaped groove. The pulley group is connected to the L-type load-bearing and limiting multi-purpose platform through a shaft. One end of the shaft extends out of the slide table and is connected to the stepper motor. A bearing is provided at the part of the shaft extending out of the slide table. A limiting body is fitted on the bearing. The limiting body is provided with a magnetic absorbing plate. On the outer wall of the slide table, limiting electromagnets are also provided at the corresponding positions near the two ends of the arc-shaped groove, so as to achieve the attraction of the magnetic absorbing plate and thus control the position of the L-type load-bearing limiting multi-purpose platform. The L-shaped bearing and limiting multi-purpose platform has a notch frame on one of its bearing surfaces. The flip-plate bearing platform is movably connected to the notch frame. After the flip-plate bearing platform is facing upward, the top block can be pushed by the removable telescopic motor to flip the flip-plate bearing platform over, so that the material on it is flipped onto the receiving conveyor.

4. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 3, characterized in that, The machining component is a multi-axis milling and turning system.

5. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 4, characterized in that, The pneumatic system includes: a Y-shaped air tube, a pair of solenoid valves, an air pump, and a main valve; Inside the flipping platform, air chambers are provided at the platform end. The Y-shaped air pipes are connected to a set of air chambers inside the flipping platform. A pair of solenoid valves are provided on the branches of the Y-shaped air pipes. The other end of the Y-shaped air pipes is connected to the air pump through a main valve.

6. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 5, characterized in that, The outer wall of the slide is provided with an arc-shaped track for the movement of the limiting body.

7. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 6, characterized in that, The arc-shaped track and the arc-shaped groove are parallel to each other.

8. The high-efficiency processing device and anti-deformation method for aircraft wing spars according to claim 7, characterized in that, The loading robotic arm adopts a clamping gripper structure.

9. The high-efficiency processing device and method for preventing processing deformation of an aircraft wing spars as described in claim 8, characterized in that, The material handling robotic arm is a suction cup type robotic hand.

10. A method for preventing machining deformation using the machining apparatus as described in claim 9, characterized in that, Includes the following steps: S1: The material is conveyed to the composite loading and unloading assembly by the feeding conveyor. The composite loading and unloading assembly pushes the parts to be processed upwards. The flipping platform has suction holes to suction the parts to be processed. Driven by the motor, the flipping platform flips and is processed by the processing assembly. At the same time, the feeding conveyor continues to feed the material while the parts are being processed. The composite loading and unloading assembly continues to push the parts to be processed upwards and the other side of the flipping platform continues to suction the parts to be processed. After the parts on the other side of the flipping platform are processed, the flipping platform flips and the parts on the other side continue to be processed. The composite loading and unloading assembly pushes the material to the feeding assembly and sends out the finished parts. S2: After the flipping platform completes one part processing, it needs to be flipped 360 degrees so that the processed part is facing downwards. The lifting motor then lifts the sliding platform, bringing the slide table on the sliding platform close to the part. Subsequently, the stepper motor is started, and the L-type load-bearing and limiting multi-purpose platform is rotated at a certain angle through the shaft so that one side of the L-type load-bearing and limiting multi-purpose platform faces the part. The rejection platform in the flipping platform rejects the part, so that the part falls on the flip plate bearing platform in the L-type load-bearing and limiting multi-purpose platform. Then, the removal telescopic motor set inside the slide table is started. The removal telescopic motor lifts the flip plate bearing platform on the L-type load-bearing and limiting multi-purpose platform through the top block, so that the part on it falls onto the receiving conveyor. S3: The L-type load-bearing and limiting multi-purpose platform needs to rotate at a certain angle. A bearing is provided at the part of the shaft extending out of the slide table. A limiting body is fitted on the bearing. The limiting body is provided with a magnetic absorbing plate. On the outer wall of the slide table, limiting electromagnets are also provided at the corresponding positions near the two ends of the arc-shaped groove to achieve the attraction of the magnetic absorbing plate, thereby controlling the position of the L-type load-bearing and limiting multi-purpose platform.

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