Sheet-shaped part feeding machine

Abstract

The utility model relates to the technical field of automatic feeding equipment, in particular to a sheet-shaped part feeding machine which comprises a control system, a machine frame, a conveying mechanism, a flexible vibration disc, a CCD camera, a turnover suction cup mechanism and a feeding suction cup mechanism, and the conveying mechanism, the flexible vibration disc, the CCD camera, the turnover suction cup mechanism and the feeding suction cup mechanism are arranged on the machine frame. The CCD camera is used for collecting the position, the orientation face and the swing direction of a part on the flexible vibration disc and transmitting a picture signal to the control system, the control system processes an image, the feeding suction cup mechanism is used in cooperation with the CCD camera, when the orientation face of the part is correct, the feeding suction cup mechanism transfers the part to the conveying mechanism, and when the orientation face of the part is reverse, the feeding suction cup mechanism conveys the part to the conveying mechanism. The feeding suction cup mechanism transfers parts to the overturning suction cup mechanism, the parts are overturned and discharged to the conveying mechanism through the overturning suction cup mechanism so that the facing faces of the parts can be accurate, chips with the inaccurate facing faces can be rapidly processed, the part feeding efficiency is high, manual operation is replaced by machines, and the labor cost of enterprises is low.

Description

Technical Field

[0001] The present application relates to the technical field of automatic feeding equipment, and more specifically, to a sheet-shaped parts feeding machine. Background Art

[0002] In the processing of thin sheet parts with front and back sides such as chips and metal gaskets, it is necessary to distinguish the front and back sides of such chaotically stacked parts and then transport them to the processing equipment in an orderly manner with the same orientation for processing. In the related art, the front and back distinction of thin sheet parts is generally done manually. The thin sheet parts are manually oriented and then placed one by one on the conveying mechanism to make the orientation of the parts in the conveying mechanism consistent. Manual turning and manual loading are inefficient and increase the company's labor costs. Utility Model Content

[0003] In order to solve the problem that manual turning over and manual loading of thin-sheet parts is inefficient and increases the labor costs of the enterprise, the present application provides a thin-sheet part loading machine.

[0004] A sheet-shaped parts loading machine comprises a control system, a frame and a conveying mechanism arranged on the frame for transmitting parts, a flexible vibrating plate for dispersing parts, a CCD camera for photographing and collecting the position, orientation and swing direction of parts on the flexible vibrating plate, a flipping suction cup mechanism for sucking and fixing parts and turning them over and dropping them, and a feeding suction cup mechanism for sucking and fixing parts and transferring them. The conveying mechanism, the flexible vibrating plate, the CCD camera, the flipping suction cup mechanism and the feeding suction cup mechanism are all connected to the control system signal. The feeding suction cup mechanism cooperates with the CCD camera to suck parts with precise swing direction on the flexible vibrating plate. When the part is facing correctly, the feeding suction cup mechanism transfers the part to the conveying mechanism. When the part is facing in the opposite direction, the feeding suction cup mechanism transfers the part to the flipping suction cup mechanism. The part is turned over and dropped to the conveying mechanism by the flipping suction cup mechanism so that the part has an accurate orientation.

[0005] Preferably, the conveying mechanism includes a first mounting frame, a conveyor belt, a driving assembly and two limit plates, both ends of the first mounting frame are respectively provided with rotating shafts, the conveyor belt is sleeved on the two rotating shafts, the two limit plates are located above the conveyor belt and close to the upper surface of the conveyor belt and are arranged at intervals along the width direction of the conveyor belt, the two limit plates are fixedly connected to the first mounting frame and the gap between the two limit plates matches the size of the parts, and the driving assembly is fixed to the first mounting frame to drive the conveyor belt transmission.

[0006] Preferably, the flipping suction cup mechanism includes a flipping drive assembly, a fixed rod, and at least one first suction nozzle. The fixed rod is located on one side of the conveyor belt and its length extension direction is parallel to the conveying direction of the conveyor belt. An air hole is provided inside the fixed rod. A plurality of the first suction nozzles are fixed to the top surface of the fixed rod and are evenly arranged in the length direction of the fixed rod and each of the first suction nozzles is connected to the air hole. The flipping drive assembly is fixed to the frame and connected to the fixed rod to support the fixed rod and to drive the fixed rod to flip back and forth in a semicircular trajectory so that the first suction nozzle is flipped to be directly above the conveyor belt and returned to its original position.

[0007] Preferably, the flipping drive assembly includes a second fixed frame, a flipping motor, a main shaft, a connecting block, a first pulley, a second pulley, and a transmission belt. The second fixed frame is fixedly connected to the frame, and the main shaft is rotatably connected to the second fixed frame. The connecting block is fixed to one end of the main shaft, and the first pulley is fixed to the other end of the main shaft. The fixing rod is fixed to the outer side wall of the connecting block. The flipping motor is fixed to the second fixed frame and the second pulley is arranged on the driving shaft of the flipping motor. The transmission belt is sleeved on the first pulley and the second pulley. The flipping motor drives the transmission belt to reciprocate to make the main shaft reciprocate. The main shaft rotates 180° each time, and the flipping motor is connected to the control system signal.

[0008] Preferably, it also includes a fiber optic sensor, which is fixed to the top surface of one of the limit plates, and the sensing probe of the fiber optic sensor extends between the two limit plates to contact the parts, and the number of the fiber optic sensors is multiple enough to cover the blanking area of ​​the flip suction cup mechanism, and the fiber optic sensor is connected to the control system signal.

[0009] Preferably, the feeding suction cup mechanism includes a second mounting frame, an X-axis module, a Y-axis module, a Z-axis module, a third fixed frame, and a second suction nozzle. The second mounting frame is fixedly connected to the frame, the Y-axis module is fixed on the second mounting frame, the Y-axis module is connected to the X-axis module to drive the X-axis module to reciprocate along the Y-axis direction, the X-axis module is connected to the third fixed frame to drive the third fixed frame to reciprocate along the X-axis direction, the number of the second suction nozzles is at least one, the number of the Z-axis modules matches the number of the second suction nozzles, a plurality of the Z-axis modules are fixed on the third fixed frame, and each of the Z-axis modules is connected to a second suction nozzle to drive the second suction nozzle to reciprocate along the Z-axis direction, and the X-axis module, the Y-axis module, and the Z-axis module are all connected to the control system signal.

[0010] Preferably, the flexible vibration plate includes a material plate, a top cover, an outer shell, a base plate, and at least one voice coil motor, the material plate is fixed to the upper end surface of the top cover, the top cover covers the upper port of the outer shell, the bottom surface of the top cover and the upper end surface of the outer shell form a seamless fitting arrangement, the lower end of the outer shell is fixedly connected to the base plate, the voice coil motor is arranged in the outer shell, the driving shaft of the voice coil motor is fixedly connected to the top cover, the lower end of the voice coil motor is fixedly connected to the base plate, and the voice coil motor is connected to the control system signal.

[0011] Preferably, it also includes a feeding mechanism, which includes a silo and a direct vibrator, the direct vibrator is located on one side of the flexible vibration disk, the silo is fixed to the top of the direct vibrator and is above the material tray and inclined toward the material tray, and the direct vibrator is connected to the control system signal.

[0012] In summary, the beneficial technical effects of this application are:

[0013] The chaotically stacked parts are placed on the flexible vibration plate and dispersed by the flexible vibration plate, so that the feeding suction cup mechanism can absorb the parts for transportation. The position, orientation and swing direction of the parts on the flexible vibration plate are captured by the CCD camera to determine the orientation of the parts. The feeding suction cup mechanism is used in conjunction with the CCD camera to absorb the parts with precise swing direction on the flexible vibration plate, so that the parts are accurately positioned on the feeding suction cup mechanism, and the parts are accurately transported to the conveying mechanism and the flipping and blanking mechanism. When the orientation of the part is correct, the feeding suction cup mechanism transfers the part to the conveying mechanism. When the orientation of the part is in the opposite direction, the feeding suction cup mechanism transfers the part to the flipping suction cup mechanism. The flipping suction cup mechanism turns the parts over and drops them to the conveying mechanism so that the parts have an accurate orientation, which facilitates the simultaneous selection and processing of the front and back sides of the parts, helps to reduce the frequency of parts being dispersed by the flexible vibration disk, saves the waiting time for CCD camera shooting and collection, and is more efficient. The present application realizes feeding the parts to the conveying mechanism through the cooperation of a flexible vibration disk, a CCD camera, and a feeding suction cup mechanism, without the need for manual picking and loading. The orientation of the parts is determined by the CCD camera, and the parts with inaccurate orientation are flipped over and loaded into the conveying mechanism through the flipping suction cup mechanism, so that the parts on the conveying mechanism have a unified orientation, without the need for manual flipping, and the parts loading efficiency is high, which helps to reduce the company's employment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a chip surface loading machine of this embodiment.

[0015] Figure 2 This is a schematic diagram of the structure of a chip surface loading machine of this embodiment with the protective shell removed.

[0016] Figure 3Schematic diagram of the connection structure between the conveying mechanism and the optical fiber sensor of this embodiment.

[0017] Figure 4 Schematic diagram of the structure of the flip suction cup mechanism of this embodiment.

[0018] Figure 5 It is a schematic structural diagram of the feeding suction cup mechanism of this embodiment.

[0019] Figure 6 It is a schematic structural diagram of the flexible vibration plate and feeding mechanism of this embodiment.

[0020] Figure 7 This is a schematic diagram of the structure of the flexible vibration plate of this embodiment with the outer shell removed.

[0021] Figure numerals: 1, control system; 2, frame; 21, workbench; 22, protective shell; 3, conveying mechanism; 31, first mounting frame; 311, rotating shaft; 32, conveyor belt; 33, driving assembly; 331, conveying motor; 332, active roller; 34, limit plate; 4, flexible vibration plate; 41, material tray; 42, top cover; 43, shell; 44, base plate; 45, voice coil motor; 5, CCD camera; 6, flip suction cup mechanism; 61, flip driving assembly; 611, first Second fixed frame; 612, flip motor; 613, main shaft; 614, connecting block; 615, first pulley; 616, second pulley; 617, transmission belt; 62, fixed rod; 63, first suction nozzle; 7, feeding suction cup mechanism; 71, second mounting frame; 72, X-axis module; 73, Y-axis module; 74, Z-axis module; 75, third fixed frame; 76, second suction nozzle; 77, rotating motor; 8, optical fiber sensor; 9, feeding mechanism; 91, silo; 92, direct vibrator. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Reference Figure 1 and Figure 2A sheet-shaped parts feeding machine comprises a control system 1, a frame 2 and a conveying mechanism 3, a flexible vibration plate 4, a CCD camera 5, a flip suction cup mechanism 6, a feeding suction cup mechanism 7, an optical fiber sensor 8, and a feeding mechanism 9 arranged on the frame 2. The frame 2 comprises a workbench 21 and a protective shell 22 arranged on the top of the workbench 21. The conveying mechanism 3, the flexible vibration plate 4, the flip suction cup mechanism 6, the feeding suction cup mechanism 7, and the feeding mechanism 9 are all arranged on the top surface of the workbench 21 and located inside the protective shell 22. The feeding mechanism 9, the flexible vibration plate 4, the conveying mechanism 3, and the flip suction cup mechanism 6 are arranged in sequence along the Y-axis direction. A camera fixing frame is arranged on the top of the protective shell 22. The CCD camera 5 is fixed on the camera fixing frame and located on the flexible vibration plate 4. The flexible vibration plate 4 is photographed downward from directly above, and the control system 1 controls the flexible vibration plate 4, CCD camera 5, flip suction cup mechanism 6, detection mechanism, and feeding suction cup mechanism 7 to cooperate in operation. The CCD camera 5 is used to photograph and collect the position, orientation and swing direction of the parts on the flexible vibration plate 4. The control system 1 is provided with an image processing unit to process the image collected by the CCD camera 5. The control system 1 controls the feeding suction cup mechanism 7 to absorb the parts with precise swing direction on the fixed flexible vibration plate 4 according to the image information, and when the orientation of the parts is correct, the parts are placed on the conveying mechanism 3, and when the orientation of the parts is incorrect, the parts are placed on the flip suction cup mechanism 6, and the flip suction cup mechanism 6 turns the parts over to make the orientation of the parts accurate and drop them to the conveying mechanism 3.

[0024] Reference Figure 2 and Figure 3 The conveying mechanism 3 includes a first mounting frame 31, a conveyor belt 32, a driving assembly 33 and two limit plates 34. The first mounting frame 31 is fixedly connected to the top surface of the workbench 21. The two ends of the first mounting frame 31 are rotatably provided with rotating shafts 311. The conveyor belt 32 is sleeved on the two rotating shafts 311, and the conveying direction of the conveyor belt 32 is parallel to the X-axis. The protective shell 22 is provided with a first opening for one end of the first mounting frame 31 to pass through so that the conveyor belt 32 can dock with external processing equipment. The two limit plates 34 are located above the conveyor belt 32 and close to the upper surface of the conveyor belt 32 and are arranged at intervals along the width direction of the conveyor belt 32. The two limit plates 34 are fixed to the first mounting frame 31 The two limit plates 34 are fixedly connected and the gap between them matches the size of the parts and limits the parts so that the parts are not easily swung when being transmitted by the conveyor belt 32, so that the parts can be accurately swung when being transported to the external processing equipment. The driving assembly 33 includes a conveying motor 331 and an active roller 332. The active roller 332 is rotatably connected to the first mounting frame 31 and penetrates into the conveyor belt 32 to press down the inner surface of the lower section of the conveyor belt 32 to tighten the conveyor belt 32. The conveying motor 331 is fixed on the first mounting frame 31 and is connected to the active roller 332 to drive the active roller 332 to rotate and drive the conveyor belt 32 to transmit, so as to transmit the parts to the external processing equipment. The conveying motor 331 is connected to the control system 1 signal.

[0025] Reference Figure 2 and Figure 4 The flip suction cup mechanism 6 includes a flip driving assembly 6133, a fixed rod 62, and a plurality of first suction nozzles 63. The fixed rod 62 is located on one side of the conveyor belt 32 and its length extension direction is parallel to the conveying direction of the conveyor belt 32. An air hole is arranged inside the fixed rod 62. The plurality of first suction nozzles 63 are fixed to the top surface of the fixed rod 62 and are evenly arranged in the length direction of the fixed rod 62. Each of the first suction nozzles 63 is connected to the air hole. The plurality of first suction nozzles 63 are connected to an external vacuum pump through the air hole. The external vacuum pump causes the plurality of first suction nozzles 63 to generate negative pressure at the same time to achieve suction and fixation of the parts. The external vacuum pump is controlled by the control system 1. Multiple first suction nozzles 63 are used to suck and fix multiple parts. The flipping drive assembly 6133 is fixed on the workbench 21 and connected to the fixing rod 62 to support the fixing rod 62 and drive the fixing rod 62 to flip back and forth in a semicircular trajectory to flip the first suction nozzle 63 to be directly above the conveyor belt 32 and return to its original position. The fixing rod 62 flips in a semicircular trajectory to cause the first suction nozzle 63 to flip in a semicircular trajectory to realize the part fixed on the first suction nozzle 63 to flip 180° and turn over. After the part is turned over, the first suction nozzle 63 releases the suction and fixation of the part so that the turned part falls onto the conveyor belt 32, thereby realizing the rapid flipping of parts with inaccurate orientation.

[0026] Reference Figure 2 and Figure 4 The flipping drive assembly 6133 includes a second fixed frame 611, a flipping motor 612, a main shaft 613, a connecting block 614, a first pulley 615, a second pulley 616, and a transmission belt 617. The second fixed frame 611 is fixedly connected to the workbench 21, the main shaft 613 is rotatably connected to the second fixed frame 611, the connecting block 614 is fixed to the outer wall of the connecting block 614, the flipping motor 612 is fixed to the second fixed frame 611 and the second pulley 616 is arranged on the driving shaft of the flipping motor 612, the transmission belt 617 is sleeved on the first pulley 615 and the second pulley 616, the flipping motor 612 is connected to the control system 1 signal, and the main shaft 613 reciprocates when the control system 1 controls the flipping motor 612 to drive the transmission belt 617 to reciprocate. The angle of each rotation of the main shaft 613 is 180°, so that the fixed rod 62 is reciprocated in a semicircular arc trajectory to turn over the parts fixed on the first suction nozzle 63.

[0027] Reference Figure 2 and Figure 3The fiber optic sensor 8 is fixed on the top surface of a limit plate 34. The sensing probe of the fiber optic sensor 8 extends between the two limit plates 34 to contact the parts. The number of fiber optic sensors 8 is multiple and covers the blanking area of ​​the flip suction cup mechanism 6. The fiber optic sensor 8 is connected to the control system 1 signal. The fiber optic sensor 8 is used to sense whether there are parts in the blanking area of ​​the flip suction cup mechanism 6 on the conveyor belt 32. When no parts are transmitted in the blanking area of ​​the flip suction cup mechanism 6, the control system 1 controls the flip blanking mechanism to operate and flip and blank the parts fixed thereon, which is beneficial to reduce the situation of stacking and conveying parts on the conveyor belt 32.

[0028] Reference Figure 2 and Figure 5The feeding suction cup mechanism 7 includes a second mounting frame 71, an X-axis module 72, a Y-axis module 73, a Z-axis module 74, a third fixed frame 75, and a second suction nozzle 76. The second fixed frame 611 is fixedly connected to the workbench 21. The Y-axis module 73 is fixed on the second mounting frame 71. The Y-axis module 73 is connected to the X-axis module 72 to drive the X-axis module 72 to reciprocate along the Y-axis direction. The X-axis module 72 is located above the conveying mechanism 3, the detection mechanism, and the flexible vibration disk 4, so that the X-axis module 72 reciprocates above the conveying mechanism 3, the flip suction cup mechanism 6, and the flexible vibration disk 4. The X-axis module 72 is connected to the third fixed frame 75 to drive the third fixed frame 75 to reciprocate along the X-axis direction. The number of the second suction nozzles 76 is 4, and the number of the Z-axis modules 74 is also 4. The four Z-axis modules 74 are all fixed on the fixed frame and arranged at intervals along the X-axis direction. The X-axis module 72, the Y-axis module 73, and the Z-axis module 74 are all connected to the control system 1 signal. Each Z-axis module 74 is connected to a second suction nozzle 76 to drive the second suction nozzle 76 to reciprocate along the Z-axis direction. Each second suction nozzle 76 is connected to an external vacuum pump and the external vacuum pump A solenoid valve is provided corresponding to each second suction nozzle 76, and the solenoid valve is controlled by the control system 1 to realize independent operation of each second suction nozzle 76. The four second suction nozzles 76 are numbered 1, 2, 3, and 4 in sequence. The Y-axis module 73 drives the X-axis module 72 to move back and forth along the Y-axis direction, and the X-axis module 72 drives the third mounting frame to move back and forth along the X-axis direction to realize the reciprocating movement of the second suction nozzle 76 in the Y-axis direction and the X-axis direction. The Z-axis module 74 drives the second suction nozzle 76 to move back and forth along the X-axis direction, so that the second suction nozzle 76 descends to contact the part to absorb the part and then goes up Lift to avoid air, X-axis module 72, Y-axis module 73, Z-axis module 74 are all connected with the control system 1 signal, when the second suction nozzle 76 sucks the parts on the fixed flexible vibration plate 4, through programming, No. 1 and No. 2 second suction nozzles 76 suck the parts with correct fixed orientation surface, No. 3 and No. 4 second suction nozzles 76 suck the parts with incorrect fixed orientation surface, the second suction nozzles 76 have four high transfer efficiency for parts, and can suck the parts with correct orientation surface and the parts with incorrect orientation surface at the same time, which is beneficial to reduce the activity stroke of the second suction nozzle 76 and further improve the part loading efficiency.

[0029] Reference Figure 5Furthermore, each X-axis module 72 is also provided with a rotating motor 77, and the second suction nozzle 76 is connected to the X-axis module 72 through the rotating motor 77, and the rotating motor 77 drives the second suction nozzle 76 to rotate. The CCD camera also captures the swing angle of the collected parts on the flexible vibration plate, and the image analysis unit of the control system analyzes the deviation angle of the parts with incorrect swing direction. The control system is connected to the rotating motor 77 signal. With the above scheme, the second suction nozzle 76 can absorb the parts with incorrect swing direction, and the control system 1 controls the rotating motor 77 to rotate to drive the second suction nozzle 76 to rotate to adjust the swing direction of the parts so that the parts are accurately swung, thereby further improving the efficiency of part loading.

[0030] Reference Figure 6 and Figure 7 The flexible vibration plate 4 includes a material plate 41, a top cover 42, a shell 43, a base plate 44, and four voice coil motors 45. The material plate 41 is fixed to the upper end surface of the top cover 42, the top cover 42 covers the upper port of the shell 43, the bottom surface of the top cover 42 and the upper end surface of the shell 43 form a seamless fitting device, the lower end of the shell 43 is fixedly connected to the base plate 44, the four voice coil motors 45 are arranged in the shell 43 and distributed at the four corners of the top cover 42, the driving shaft of the voice coil motor 45 is fixedly connected to the top cover 42, the lower end of the voice coil motor 45 is connected to the base plate 44 The voice coil motor 45 is fixedly connected and connected to the control system 1 by signal. By controlling the vibration frequency of the voice coil motor 45, the parts in the tray 41 can resonate, and then the parts can be in an active state, so that the stacked parts can be dispersed to facilitate the second suction nozzle 76 to absorb the parts. The bottom surface of the top cover 42 and the upper end surface of the shell 43 form a seamless fitting arrangement, which can avoid the parts in the shell 43 from being exposed, making the overall appearance of the utility model neat and tidy, and can also prevent dust from entering the inside of the shell 43, reducing the dirt of the parts in the shell 43.

[0031] Reference Figure 6 The feeding mechanism 9 includes a silo 91 and a direct vibrator 92. The direct vibrator 92 is located on one side of the flexible vibration disk 4. The silo 91 is fixed on the top of the direct vibrator 92 and is above the material tray 41 and the material tray 41 is inclined. The direct vibrator 92 is connected to the control system 1 signal, and the protective shell 22 is provided with a second opening for the feeding end of the silo 91 to pass through, which is convenient for loading the silo 91. The parts are placed in the silo 91, and the silo 91 is vibrated by the direct vibrator 92 to shake the parts in the silo 91 into the material tray 41, so as to realize the feeding of the material tray 41. The feeding mechanism 9 is used to feed the material, which reduces the use of manual feeding and further reduces the enterprise's employment cost.

[0032] The implementation principle of a thin-sheet part loading machine of the present application is as follows: the chaotically stacked parts are placed in a hopper 91, the hopper 91 vibrates to cause the parts to fall onto a tray 41, the voice coil motor 45 drives the tray 41 to vibrate to disperse the parts in the tray 41, the CCD camera 5 captures the image of the parts on the tray 41 and transmits it to the image processing unit of the control system 1 for processing to obtain the position, orientation and swing information of the parts, and the X-axis module 72, the Y-axis module 73, the Z-axis module 74 and the external vacuum pump are controlled to operate according to the information, so that the No. 1 and No. 2 second suction nozzles 76 absorb the parts with the correct fixed orientation surface, and the No. 3 and No. 4 second suction nozzles 76 absorb the parts with incorrect fixed orientation surface. After the four second suction nozzles 76 have absorbed the fixed parts, the control system 1 controls the X-axis module 72, the Y-axis module 73, the Z-axis module 74 and the external vacuum pump to operate to move the second suction nozzles 76 to the top of the conveyor belt 32 and place the parts absorbed by the No. 1 and No. 2 second suction nozzles 76 onto the conveyor belt 3 2, complete the loading of parts with correct facing surface, and then move the second suction nozzle 76 to the top of the first suction nozzle 63 to suck and fix the parts No. 3 and No. 4 second suction nozzles 76 and place them on the first suction nozzle 63. The first suction nozzle 63 sucks and fixes the parts, and completes the loading of parts with incorrect facing surface to the flip suction cup mechanism 6, and repeats the above operation. After the first suction nozzle 63 on the fixing rod 62 sucks and fixes the parts, the optical fiber sensor 8 senses whether there are parts in the corresponding area of ​​the conveyor belt 32 for transportation. When the optical fiber sensor 8 does not sense the parts, the flip motor 612 drives the transmission belt 617 to drive the main shaft 613 to rotate 180° and drive the connecting block 614 to flip 180°, so that the fixing rod 62 flips 180° to turn the parts over and make the turned parts between the two limit plates 34 and close to the conveyor belt 32. The first suction nozzle 63 releases the suction and fixation of the parts so that the facing surface of the parts accurately falls on the conveyor belt 32 for transportation, and the parts are flipped over once. Each time after the second suction nozzle 76 sucks the parts on the flexible vibration plate 4, the control system 1 controls the feeding mechanism 9 to perform the feeding operation and controls the flexible vibration plate 4 to disperse the parts and controls the CCD camera 5 to re-photograph and collect the position, swing direction and orientation surface image information of the parts on the flexible vibration plate 4.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sheet-shaped parts feeding machine, characterized in that: It includes a control system, a frame and a conveying mechanism arranged on the frame for transmitting parts, a flexible vibration plate for dispersing parts, a CCD camera for photographing and collecting the position, orientation and swing direction of parts on the flexible vibration plate, a flipping suction cup mechanism for sucking and fixing parts and turning them over and dropping them, and a feeding suction cup mechanism for sucking and fixing parts and transferring them. The conveying mechanism, the flexible vibration plate, the CCD camera, the flipping suction cup mechanism and the feeding suction cup mechanism are all connected with the control system signal. The feeding suction cup mechanism cooperates with the CCD camera to suck the parts with precise swing direction on the flexible vibration plate. When the part is facing correctly, the feeding suction cup mechanism transfers the part to the conveying mechanism. When the part is facing in the opposite direction, the feeding suction cup mechanism transfers the part to the flipping suction cup mechanism, and the part is turned over and dropped to the conveying mechanism by the flipping suction cup mechanism so that the part has an accurate orientation.

2. A sheet-shaped parts feeding machine according to claim 1, characterized in that: The conveying mechanism includes a first mounting frame, a conveyor belt, a driving assembly and two limit plates. The two ends of the first mounting frame are respectively rotatably provided with rotating shafts. The conveyor belt is sleeved on the two rotating shafts. The two limit plates are located above the conveyor belt and close to the upper surface of the conveyor belt and are arranged at intervals along the width direction of the conveyor belt. The two limit plates are fixedly connected to the first mounting frame and the gap between the two limit plates matches the size of the parts. The driving assembly is fixed to the first mounting frame to drive the conveyor belt transmission.

3. A sheet-shaped parts feeding machine according to claim 2, characterized in that: The flip suction cup mechanism includes a flip driving assembly, a fixed rod, and at least one first suction nozzle. The fixed rod is located on one side of the conveyor belt and its length extension direction is parallel to the conveying direction of the conveyor belt. An air hole is arranged inside the fixed rod. A plurality of the first suction nozzles are fixed to the top surface of the fixed rod and are evenly arranged in the length direction of the fixed rod and each of the first suction nozzles is connected to the air hole. The flip driving assembly is fixed to the frame and connected to the fixed rod to support the fixed rod and to drive the fixed rod to flip back and forth in a semicircular trajectory so that the first suction nozzle is flipped to the top of the conveyor belt and returned to its original position.

4. A sheet-shaped parts feeding machine according to claim 3, characterized in that: The flipping drive assembly includes a second fixed frame, a flipping motor, a main shaft, a connecting block, a first pulley, a second pulley, and a transmission belt. The second fixed frame is fixedly connected to the frame, and the main shaft is rotatably connected to the second fixed frame. The connecting block is fixed to one end of the main shaft, and the first pulley is fixed to the other end of the main shaft. The fixing rod is fixed to the outer side wall of the connecting block. The flipping motor is fixed to the second fixed frame and the second pulley is arranged on the driving shaft of the flipping motor. The transmission belt is sleeved on the first pulley and the second pulley. The flipping motor drives the transmission belt to reciprocate to make the main shaft reciprocate. The main shaft rotates 180° each time. The flipping motor is connected to the control system signal.

5. The sheet-shaped parts feeding machine according to claim 3, characterized in that: It also includes a fiber optic sensor, which is fixed to the top surface of one of the limit plates. The sensing probe of the fiber optic sensor extends between the two limit plates to contact the parts, and the number of the fiber optic sensors is multiple enough to cover the blanking area of ​​the flip suction cup mechanism. The fiber optic sensor is connected to the control system signal.

6. The sheet-shaped parts loading machine according to claim 1, characterized in that: The feeding suction cup mechanism includes a second mounting frame, an X-axis module, a Y-axis module, a Z-axis module, a third fixed frame, and a second suction nozzle. The second mounting frame is fixedly connected to the frame, the Y-axis module is fixed on the second mounting frame, the Y-axis module is connected to the X-axis module for driving the X-axis module to reciprocate along the Y-axis direction, the X-axis module is connected to the third fixed frame for driving the third fixed frame to reciprocate along the X-axis direction, the number of the second suction nozzles is at least one, the number of the Z-axis modules matches the number of the second suction nozzles, a plurality of the Z-axis modules are fixed on the third fixed frame, and each of the Z-axis modules is connected to a second suction nozzle for driving the second suction nozzle to reciprocate along the Z-axis direction, and the X-axis module, the Y-axis module, and the Z-axis module are all connected to the control system signal.

7. The sheet-shaped parts loading machine according to claim 1, characterized in that: The flexible vibration plate includes a material plate, a top cover, an outer shell, a base plate, and at least one voice coil motor. The material plate is fixed to the upper end surface of the top cover, the top cover covers the upper port of the outer shell, the bottom surface of the top cover and the upper end surface of the outer shell form a seamless fitting arrangement, the lower end of the outer shell is fixedly connected to the base plate, the voice coil motor is arranged in the outer shell, the driving shaft of the voice coil motor is fixedly connected to the top cover, the lower end of the voice coil motor is fixedly connected to the base plate, and the voice coil motor is connected to the control system signal.

8. The sheet-shaped parts loading machine according to claim 7, characterized in that: It also includes a feeding mechanism, which includes a silo and a direct vibrator. The direct vibrator is located on one side of the flexible vibration disk. The silo is fixed on the top of the direct vibrator and is above the material tray and inclined toward the material tray. The direct vibrator is connected to the control system signal.

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