A stamping two-axis multi-station automatic feeding method and feeding machine

Abstract

The present invention discloses a two-axis multi-station automatic feeding method for stamping, firstly, the whole stack of materials is prepared on the station of the material preparation turntable mechanism, then the material-pushing mechanism and the magnetic sheet separator are used to push and separate the stacked materials, and then the material-picking fixture on the two-axis material-picking transfer mechanism grabs and transfers the separated materials to the positioning table, and the double-sheet detection system detects whether there are two or more sheets of materials stacked on the material transferred to the positioning table. If it is detected that there is one sheet of material at present, the feeding step continues, and the material-picking fixture on the other axis of the material-picking transfer mechanism transfers the current material on the positioning table to the stamping bed. If it is detected that there are two or more sheets of materials stacked, the feeding step stops and an alarm is sounded. The continuity of work is effectively guaranteed and the work efficiency is improved; it replaces manual operation, greatly improves the automation degree of the equipment, reduces labor and improves productivity. The present invention also discloses a two-axis multi-station automatic feeding machine for stamping.

Description

Technical Field

[0001] The present invention relates to the technical field of automated mechanical manufacturing, and in particular to a stamping two-axis multi-station automatic feeding method and a feeding machine. Background Art

[0002] The prior art discloses "Multi-station loader for the metal stamping industry", whose first function is: by setting a converter, a driving gear, a motor, a first conveyor belt, a first driven wheel, a bearing plate, a transmission, a driven gear, a rotating shaft, a transmission shaft, a first driving wheel, a second conveyor belt, a second driving wheel and a second driven wheel, the product can be effectively lifted. Function 2 is: through the turntable, the loader can be rotated to load, and the rotary multi-station is used instead of the reciprocating double-station loading, which solves the problem of inconvenient loading of the compound double-station loader.

[0003] The functions of the multi-station loading machine disclosed in the technical document are not yet fully perfect; in order to address this defect, the present application proposes a two-axis multi-station automatic loading method and loading machine for stamping. Summary of the invention

[0004] The purpose of the present invention is to provide a stamping two-axis multi-station automatic feeding method and feeding machine, which effectively ensures the continuity of work and improves work efficiency; replaces manual operation, greatly improves the degree of automation of the equipment, reduces labor and improves productivity.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A stamping two-axis multi-station automatic feeding method, comprising the following steps:

[0007] (1) The whole stack of materials is manually or mechanically transferred and stacked on the material preparation turntable mechanism station;

[0008] (2) After the materials are in place, the material preparation turntable mechanism starts, and one of the stacking stations rotates to the working area of ​​the material ejecting mechanism;

[0009] (3) After the stacking station rotates to the position of the material push-up mechanism, the material push-up mechanism and the magnetic separator are started together. The material push-up mechanism lifts the entire stack of materials from the bottom of the stacking station. At the same time, the magnetic separator separates the entire stack of materials one by one from the top of the stacking station.

[0010] (4) After the steps of pushing and separating are completed, the two-axis material loading and transfer mechanism is started, and a material picking fixture on the two-axis material loading and transfer mechanism is transferred to the material preparation turntable mechanism, and the separated materials are grabbed and transferred to the positioning table;

[0011] (5) After the material is transferred to the positioning table, at the same time, the material picking fixture is transferred back to the material preparation turntable mechanism to carry out the next material grabbing and transfer;

[0012] (6) The double sheet detection system is started to detect whether there are two or more sheets of material stacked on the material transferred to the positioning table. If it is detected that there is only one sheet of material, the loading step continues, and the other material picking fixture on the two-axis loading and transfer mechanism transfers the current material on the positioning table to the punching bed. If it is detected that there are two or more sheets of material stacked, the loading step stops and an alarm is prompted;

[0013] (7) Repeat the steps of material pushing, sheet separation, primary transfer, inspection, and secondary transfer until the entire stack of materials on the current station is taken out. The material preparation turntable mechanism will then rotate to the next station for the entire stack of materials, and the cycle will continue.

[0014] Furthermore, the action of separating the whole stack of materials one by one in step (3) is specifically as follows:

[0015] The material is blocked by the guide rod A and the guide rod B, wherein the top of the guide rod B is inlaid with a magnet, and the magnet at this end of the guide rod B will exert a vertical magnetic force on the material, that is, there is an upward force on the material end A, and due to the influence of gravity, there is a downward force on the material end A, that is, there is a downward force on the material end B. Under the action of the two forces, the material end A will tilt up, deviate from the original position and form a gap with other materials. When taking the material, the two pieces of material will not overlap together, and only one piece will be taken away at a time.

[0016] Furthermore, the step of detecting whether there are two or more pieces of material overlapping in step (6) is specifically as follows:

[0017] Double-sheet detection sensor A carries positive charge, and double-sheet detection sensor B carries negative charge. A voltage U is formed between double-sheet detection sensor A and double-sheet detection sensor B. Voltage U changes with the medium between double-sheet detection sensor A and double-sheet detection sensor B. Positioning cylinder B positions the material. At this time, the material is between double-sheet detection sensor A and double-sheet detection sensor B. When there is only one piece of material, the voltage between double-sheet detection sensor A and double-sheet detection sensor B is U1. During actual detection, the voltage between double-sheet detection sensor A and double-sheet detection sensor B is U2. The signal amplifier amplifies the U1 and U2 signals and then compares them. If the voltages are the same, it is one piece of material. If the voltages are not equal, it is two or more pieces of material.

[0018] A stamping two-axis multi-station automatic feeding machine, comprising a frame, the stamping two-axis six-station feeding machine also includes:

[0019] A material preparation turntable mechanism, which is arranged on a frame and a machine platform;

[0020] A two-axis material loading and transfer mechanism, which is arranged on a frame and a platform, and is provided with two material taking fixtures;

[0021] A magnetic spreader, which is arranged on the two-axis material feeding transfer mechanism and forms a plurality of limit positions for stacking materials on the material preparation turntable mechanism;

[0022] A material ejecting device, which is arranged on the frame;

[0023] A double sheet detection system is arranged on a frame positioning platform.

[0024] Furthermore, the material preparation turntable mechanism includes a turntable, a workstation divider, a splitting sensor, a splitting sensor mounting plate, an induction motor, a motor mounting plate, a driving sprocket, a chain, a driven sprocket, and an induction rod; wherein the motor mounting plate, the splitting sensor mounting plate, and the induction motor are arranged below the turntable, the driving sprocket and the driven sprocket are arranged on the motor mounting plate, the chain is connected to the driving sprocket and the driven sprocket, and the workstation divider, the splitting sensor, and the induction rod are arranged on the splitting sensor mounting plate.

[0025] Furthermore, the two-axis feeding transfer mechanism includes:

[0026] Upper and lower servo motor reducers, upper and lower servo motor mounting plates, upper and lower servo motors, upper and lower shaft sensors, upper and lower shaft sensors, upper and lower sliders, upper and lower slide rails, left and right servo motors, left and right servo motor mounting plates, left and right servo motor reducers, synchronous wheels, idler wheels, left and right support plates, left and right sliders, left and right slide rails, left and right limit sensor plates, two-axis fixed connecting plates, left and right shaft sensors A, left and right shaft sensors B, left and right shaft slide plates, upper and lower material buffer blocks, loading profiles, loading profile fixing plates, upper and lower shaft racks, and upper and lower shaft gears; wherein, the upper and lower shaft gears are meshed with the upper and lower shaft racks, the upper and lower shaft gears are connected to the upper and lower servo motors, the upper and lower servo motor reducers are connected to the upper and lower servo motors, the upper and lower servo motors are arranged on the upper and lower servo motor mounting plates, the upper and lower servo motor mounting plates and the loading profiles are arranged on the loading profile fixing plates, the upper and lower sliders are arranged on the upper and lower slide rails, the upper and lower material buffer blocks are arranged at the ends of the upper and lower slide rails, the upper and lower shaft sensors and the lower shaft sensors are arranged on the upper and lower shaft sliding mechanisms, and the two-axis fixed connecting plates are arranged on the main shafts of the left and right sliding mechanisms;

[0027] The left and right servo motors are arranged on the left and right servo motor mounting plates, the left and right servo motor mounting plates are arranged on the left and right support plates, the left and right servo motor reducers are connected to the left and right servo motors, the synchronous wheels are connected to the left and right servo motors, the idler wheels are connected to the left and right shaft slides, the left and right shaft slides are arranged on the left and right support plates, the inner sides of the left and right support plates are connected to the left and right sliders, the left and right sliders are connected to the left and right slide rails, the left and right shaft sensors A and the left and right shaft sensors B are respectively arranged on the left and right shaft slides, and the left and right limit sensor plates are arranged on the left and right shaft sliding mechanisms.

[0028] Furthermore, the magnetic spreader includes two material guide rods A and two material guide rods B, which are arranged on a turntable on the material preparation turntable mechanism to form a limit position for stacking materials, and the material guide rod B is provided with a magnet.

[0029] Furthermore, the material pushing device includes a material pushing lifting main body part and a material checking and positioning part, the material pushing lifting main body part includes a device profile, a device fixing plate, a material pushing servo motor, a screw rod, a device slide, a bearing seat, a coupling, a material pushing plate, a lower limit sensor, an upper limit sensor, a slide rail, and a sensor sheet; wherein, the material pushing servo motor is arranged below the device profile, the device fixing plate is arranged on the side of the device profile, the screw rod, the bearing seat, the coupling, and the slide rail are arranged on the device profile, the lower limit sensor and the upper limit sensor are arranged on the slide rail, the sensor sheet is arranged on the device slide, the device slide is arranged on the slide rail and the screw rod, and the material pushing plate is arranged on the device slide; the material checking and positioning part includes a material sensor mounting profile, a material sensor mounting plate, and a material sensor, wherein the material sensor mounting profile is arranged on the material sensor mounting plate, the material sensor mounting plate is arranged on the frame and the machine, and the material sensor is arranged on the material preparation turntable mechanism station.

[0030] Furthermore, the material picking jig includes a jig connecting plate, a hardware fixing plate, a hardware, and a suction cup, wherein the suction cup is arranged on the hardware, the hardware is arranged on the hardware fixing plate, the hardware fixing plate is arranged on the jig connecting plate, and the jig connecting plate is arranged on the two-axis material feeding transfer mechanism.

[0031] Furthermore, the double-sheet detection system includes a positioning base plate, a positioning plate A, a positioning plate B, a positioning block A, a positioning block B, a cylinder mounting plate, a positioning cylinder A, a positioning cylinder B, a double-sheet detection sensor A, and a double-sheet detection sensor B; wherein, the positioning plate A, the positioning plate B, the positioning block A, and the positioning block B are arranged to form a detection area for limiting the position of the material, the positioning plate A and the positioning plate B are driven forward by the positioning cylinder A and the positioning cylinder B, the double-sheet detection sensor A is arranged above the detection area, the double-sheet detection sensor B is arranged below the detection area, the positioning cylinder A and the positioning cylinder B are arranged on the cylinder mounting plate, and the positioning base plate is arranged on the frame platform through a screw.

[0032] Beneficial effects of the present invention:

[0033] 1. The present invention provides a two-axis multi-station automatic loading method for stamping. First, the whole stack of materials is prepared on the material preparation turntable mechanism station. Then, the material ejection mechanism and the magnetic separator perform the steps of ejection and separation on the stacked materials. Then, the material picking fixture on the two-axis material loading transfer mechanism grabs and transfers the separated materials to the positioning table. The double-sheet detection system detects whether the material transferred to the positioning table has two or more sheets of material overlapping. If it is detected that there is one sheet of material, the loading step continues. Another material picking fixture on the two-axis material loading transfer mechanism transfers the current material on the positioning table to the stamping bed. If it is detected that there are two or more sheets of material overlapping, the loading step stops and an alarm prompts. It effectively ensures the continuity of work and improves work efficiency; it replaces manual operation, greatly improves the automation of the equipment, reduces labor and improves productivity.

[0034] 2. The two-axis multi-station automatic feeder for stamping of the present invention includes a material preparation turntable mechanism, a two-axis material feeding transfer mechanism, a magnetic sheet divider, a material ejection device, and a double-sheet detection system. The two-axis material feeding transfer mechanism is provided with two material picking fixtures. The magnetic sheet divider is provided on the two-axis material feeding transfer mechanism, and a plurality of limit stations for stacking materials are formed on the material preparation turntable mechanism. By integrating the above equipment together, automatic material loading can be completed, production efficiency is improved, and labor costs are reduced; and by providing six product placement stations on the material preparation turntable mechanism, and then driving the indexing turntable to rotate through a rotating mechanism, a continuous supply of products can be achieved. And by providing a double-sheet detection system before the final feeding to the punch press, the double-sheet detection system is used to perform the final step of material detection.

[0035] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The figure shows the structure diagram of the punching two-axis multi-station automatic feeding machine of the present invention;

[0037] Figure 2 Shown is a structural diagram of the material preparation turntable mechanism of the present invention;

[0038] Figure 3 Shown is a structural diagram of the material preparation turntable mechanism of the present invention;

[0039] Figure 4 The figure shows the structure diagram of the two-axis material feeding and transferring mechanism of the present invention;

[0040] Figure 5 The figure shows the structure diagram of the two-axis material feeding and transferring mechanism of the present invention;

[0041] Figure 6 The figure shows the structure diagram of the two-axis material feeding and transferring mechanism of the present invention;

[0042] Figure 7 The figure shows the structure of the magnetic spreader of the present invention;

[0043] Figure 8 Shown is a structural diagram of the ejection mechanism of the present invention;

[0044] Fig. 9 Shown is a structural diagram of the ejection mechanism of the present invention;

[0045] Fig.10 The figure shows the structure diagram of the material taking fixture of the present invention;

[0046] Fig.11 Shown is a structural diagram of the double sheet detection system of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] This embodiment provides a stamping two-axis multi-station automatic feeding method, which includes the following steps:

[0049] (1) The stacked materials are manually or mechanically transferred and stacked on the 2nd station of the material preparation turntable mechanism;

[0050] (2) After the materials are in place, the material preparation turntable mechanism 2 is started, and one of the stacking stations is rotated to the working area of ​​the material lifting mechanism 5;

[0051] (3) After the stacking station rotates to the position of the material pusher 5, the material pusher 5 and the magnetic separator 4 are started together. The material pusher 5 lifts the entire stack of materials from the bottom of the stacking station. At the same time, the magnetic separator 4 separates the entire stack of materials one by one from the top of the stacking station. The action of separating the entire stack of materials one by one in step (3) is specifically as follows: the materials are blocked by the guide rod A4.1 and the guide rod B4.2, wherein the guide rod B4. 2 The top is inlaid with a magnet 4.3. The end of the guide rod B4.2 exerts a vertical magnetic force on the material, that is, the material end A4.4 has an upward force. Due to the influence of gravity, the end of the guide rod A4.1 has a downward force, that is, the material end B4.5 has a downward force. Under the action of the two forces, the material end A4.1 will tilt up, deviate from the original position and form a gap with other materials. When taking the material, the two pieces of material will not overlap together, and only one piece will be taken at a time.

[0052] (4) After the steps of pushing and separating are completed, the two-axis material feeding transfer mechanism 3 is started, and a material picking fixture 7 on the two-axis material feeding transfer mechanism is transferred to the material preparation turntable mechanism 2, and the separated materials are grabbed and transferred to the positioning table;

[0053] (5) After the material is transferred to the positioning table, at the same time, the material picking fixture 7 is transferred back to the material preparation turntable mechanism 2 to carry out the next material grabbing and transfer;

[0054] (6) The double sheet detection system 6 is started to detect whether there are two or more sheets of material stacked on the material transferred to the positioning table. If it is detected that there is only one sheet of material, the loading step continues, and another material picking fixture 7 on the loading transfer mechanism transfers the current material on the positioning table to the punching bed. If it is detected that there are two or more sheets of material stacked, the loading step stops and an alarm is prompted;

[0055] The step (6) of detecting whether there are two or more sheets of material overlapping is specifically as follows: the double sheet detection sensor A6.9 is positively charged, the double sheet detection sensor B6.10 is negatively charged, and a voltage U is formed between the double sheet detection sensor A6.9 and the double sheet detection sensor B6.10. The voltage U changes with the medium between the double sheet detection sensor A6.9 and the double sheet detection sensor B6.10. The positioning cylinder B6.8 positions the material. The object is between the double sheet detection sensor A6.9 and the double sheet detection sensor B6.10. When there is only one piece of material, the voltage between the double sheet detection sensor A6.9 and the double sheet detection sensor B6.10 is U1. During actual detection, the voltage between the double sheet detection sensor A6.9 and the double sheet detection sensor B6.10 is U2. The signal amplifier amplifies the U1 and U2 signals and then compares them. If the voltages are the same, there is one piece of material. If the voltages are not equal, there are two or more pieces of material.

[0056] (7) Repeat the steps of material pushing, sheet separation, primary transfer, inspection, and secondary transfer until the entire stack of materials on the current station is taken out. Then, the material preparation turntable mechanism 2 will rotate to the next station for the entire stack of materials, and the cycle continues.

[0057] See attached Figures 1 to 11 The present embodiment also provides a stamping two-axis multi-station automatic loading machine, including a frame 1, and the stamping two-axis six-station loading machine also includes:

[0058] A material preparation turntable mechanism 2, which is arranged on a machine frame 1;

[0059] A two-axis material loading and transfer mechanism 3, which is arranged on the machine frame 1 and is provided with two material taking fixtures 7;

[0060] A magnetic spreader 4, which is arranged on the two-axis material feeding transfer mechanism 3 and forms a plurality of limit positions for stacking materials on the material preparation turntable mechanism 2;

[0061] A material ejecting device 5, which is arranged on the frame 1;

[0062] The double sheet detection system 6 is arranged on the positioning platform of the frame 1 .

[0063] The present embodiment also provides a stamping two-axis multi-station automatic feeding machine, wherein the material preparation turntable mechanism 2 comprises a turntable 2.1, a station divider 2.2, a splitting sensor 2.3, a splitting sensor mounting plate 2.4, an induction motor 2.5, a motor mounting plate 2.6, a driving sprocket 2.7, a chain 2.8, a driven sprocket 2.9, and a sensor rod 2.10; wherein the motor mounting plate 2.6, the splitting sensor mounting plate 2.4, and the induction motor 2.5 are arranged below the turntable 2.1, the driving sprocket 2.7 and the driven sprocket 2.9 are arranged on the motor mounting plate 2.6, the chain 2.8 is connected to the driving sprocket 2.7 and the driven sprocket 2.9, and the station divider 2.2, the splitting sensor 2.3, and the sensor rod 2.10 are arranged on the splitting sensor mounting plate 2.4.

[0064] The present embodiment also provides a stamping two-axis multi-station automatic feeder, and the two-axis feeding transfer mechanism 3 includes: an upper and lower servo motor reducer 3.1, an upper and lower servo motor mounting plate 3.2, an upper and lower servo motor 3.3, an upper and lower axis upper sensor 3.4, an upper and lower axis lower sensor 3.5, an upper and lower slider 3.6, an upper and lower slide rail 3.7, a left and right servo motor 3.8, a left and right servo motor mounting plate 3.9, a left and right servo motor reducer 3.10, a synchronous wheel 3.11, an idler wheel 3.12, a left and right support plate 3.13, a left and right slider 3.14, a left and right slide rail 3.15, a left and right limit sensor sheet 3.16, a two-axis fixed connection plate 3.17, a left and right axis sensor A 3.18, a left and right axis sensor B 3.19, a left and right axis slide plate 3.20, an upper and lower material buffer block 3.21, a feeding profile 3.22, a feeding profile The upper and lower shaft gears 3.25 are meshed with the upper and lower shaft gears 3.24, the upper and lower shaft gears 3.25 are connected to the upper and lower servo motors 3.3, the upper and lower servo motor reducers 3.1 are connected to the upper and lower servo motors 3.3, the upper and lower servo motors 3.3 are arranged on the upper and lower servo motor mounting plates 3.2, the upper and lower servo motor mounting plates 3.2 and the feeding profiles 3.22 are arranged on the feeding profile fixing plates 3.23, the upper and lower sliders 3.6 are arranged on the upper and lower slide rails 3.7, the upper and lower material buffer blocks 3.21 are arranged at the head and tail ends of the upper and lower slide rails 3.7, the upper and lower shaft sensors 3.4 and the lower and upper shaft sensors 3.5 are arranged on the upper and lower shaft sliding mechanisms, and the two shaft fixed connecting plates 3.17 are arranged on the left and right sliding mechanism main shafts;

[0065] The left and right servo motors 3.8 are arranged on the left and right servo motor mounting plates 3.9, the left and right servo motor mounting plates 3.9 are arranged on the left and right support plates 3.13, the left and right servo motor reducers 3.10 are connected to the left and right servo motors 3.8, the synchronous wheels 3.11 are connected to the left and right servo motors 3.8, the idler wheels 3.12 are connected to the left and right shaft slide plates 3.20, the left and right shaft slide plates 3.20 are arranged on the left and right support plates 3.13, the inner sides of the left and right support plates 3.13 are connected to the left and right sliders 3.14, the left and right sliders 3.14 are connected to the left and right slide rails 3.15, the left and right shaft sensors A 3.18 and the left and right shaft sensors B 3.19 are respectively arranged on the left and right shaft slide plates 3.20, and the left and right limit sensor plates 3.16 are arranged on the left and right shaft sliding mechanisms.

[0066] The present embodiment also provides a stamping two-axis multi-station automatic loading machine, the magnetic spreader 4 includes two guide rods A4.1 and two guide rods B4.2, the two guide rods A4.1 and the two guide rods B4.2 are arranged on the turntable 2.1 on the material preparation turntable mechanism 2, forming a limit station for stacking materials, and the guide rod B4.2 is provided with a magnet 4.3.

[0067] The present embodiment also provides a stamping two-axis multi-station automatic feeder, wherein the ejecting device 5 comprises an ejecting lifting main body part and a material checking and placing part, wherein the ejecting lifting main body part comprises a device profile 5.1, a device fixing plate 5.2, an ejecting servo motor 5.3, a screw rod 5.4, a device slide 5.5, a bearing seat 5.6, a coupling 5.7, an ejecting plate 5.8, a lower limit sensor 5.12, an upper limit sensor 5.13, a slide rail 5.14, and a sensor sheet 5.15; wherein the ejecting servo motor 5.3 is arranged below the device profile 5.1, the device fixing plate 5.2 is arranged on the side of the device profile 5.1, the screw rod 5.4, the bearing seat 5.6, the coupling 5.7, the slide rail 5.14 It is arranged on the device profile 5.1, the lower limit sensor 5.12 and the upper limit sensor 5.13 are arranged on the slide rail 5.14, the sensor sheet 5.15 is arranged on the device slide 5.5, the device slide 5.5 is arranged on the slide rail 5.14 and the screw rod 5.4, and the ejector plate 5.8 is arranged on the device slide 5.5; the material inspection part includes a material sensor mounting profile 5.9, a material sensor mounting plate 5.10, and a material sensor 5.11, wherein the material sensor mounting profile 5.9 is arranged on the material sensor mounting plate 5.10, the material sensor mounting plate 5.10 is arranged on the machine frame 1, and the material sensor 5.11 is arranged on the workstation of the material preparation turntable mechanism 2.

[0068] The present embodiment also provides a stamping two-axis multi-station automatic feeding machine, wherein the material picking fixture 7 includes a fixture connecting plate 7.1, a hardware fixing plate 7.2, a hardware 7.3, and a suction cup 7.4, wherein the suction cup 7.4 is arranged on the hardware 7.3, the hardware 7.3 is arranged on the hardware fixing plate 7.2, the hardware fixing plate 7.2 is arranged on the fixture connecting plate 7.1, and the fixture connecting plate 7.1 is arranged on the two-axis feeding transfer mechanism 3.

[0069] The present embodiment also provides a stamping two-axis multi-station automatic feeder, and the double sheet detection system 6 includes a positioning base plate 6.1, a positioning plate A6.2, a positioning plate B6.3, a positioning block A6.4, a positioning block B6.5, a cylinder mounting plate 6.6, a positioning cylinder A6.7, a positioning cylinder B6.8, a double sheet detection sensor A6.9, and a double sheet detection sensor B6.10; wherein the positioning plate A6.2, the positioning plate B6.3, the positioning block A6.4, and the positioning block B6.5 surround A detection area for limiting the position of materials is constituted, and the positioning plate A6.2 and the positioning plate B6.3 are driven forward by the positioning cylinders A6.7 and B6.8, the double sheet detection sensor A6.9 is arranged above the detection area, the double sheet detection sensor B6.10 is arranged below the detection area, the positioning cylinders A6.7 and B6.8 are arranged on the cylinder mounting plate 6.6, and the positioning base plate 6.1 is arranged on the machine platform of the frame 1 through the screw 6.11.

[0070] The present invention provides a two-axis multi-station automatic feeding method for stamping. First, the whole stack of materials is prepared on the material preparation turntable mechanism station. Then, the material ejection mechanism and the magnetic separator perform the steps of ejection and separation on the stacked materials. Then, the material picking fixture on the two-axis feeding transfer mechanism grabs and transfers the separated materials to the positioning table. The double-sheet detection system detects whether the material transferred to the positioning table has two or more sheets of material overlapped. If the current material is detected to be one sheet, the feeding step continues. Another material picking fixture on the feeding transfer mechanism transfers the current material on the positioning table to the stamping bed. If the material is detected to be two or more sheets of material overlapped, the feeding step stops and an alarm is prompted. The continuity of work is effectively guaranteed and work efficiency is improved. It replaces manual operation, greatly improves the automation of the equipment, reduces labor and improves productivity.

[0071] The stamping two-axis multi-station automatic feeder of the present invention comprises a material preparation turntable mechanism 2, a two-axis material feeding transfer mechanism 3, a magnetic spreader 4, a material ejection device 5, and a double-sheet detection system 6. The two-axis material feeding transfer mechanism 3 is provided with two material taking fixtures 7. The magnetic spreader 4 is arranged on the two-axis material feeding transfer mechanism 3, and a plurality of limit stations for stacking materials are formed on the material preparation turntable mechanism 2. By integrating the above-mentioned equipment together, automatic feeding can be completed, production efficiency is improved, and labor costs are reduced; and by arranging six product placement stations on the material preparation turntable mechanism 2, and then driving the indexing turntable to rotate by a rotating mechanism, a continuous supply of products can be achieved. And by arranging a double-sheet detection system 6 before finally feeding the material to the punching machine, the double-sheet detection system 6 is used to perform the final step of material detection.

[0072] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamping two-axis multi-station automatic feeding method, characterized in that: It includes the following steps: (1) The whole stack of materials is transferred manually or mechanically and stacked on the material preparation turntable mechanism station; (2) After the materials are in place, the material preparation turntable mechanism starts, and one of the stacking stations rotates to the working area of ​​the material ejecting mechanism; (3) After the stacking station rotates to the position of the material push-up mechanism, the material push-up mechanism and the magnetic separator are started together. The material push-up mechanism lifts the entire stack of materials from the bottom of the stacking station. At the same time, the magnetic separator separates the entire stack of materials one by one from the top of the stacking station. The action of separating the whole stack of materials one by one in step (3) is specifically as follows: The material is blocked by the guide rod A and the guide rod B. The top of the guide rod B is inlaid with a magnet. The magnet at this end of the guide rod B will exert a vertical magnetic force on the material, that is, the material end A has an upward force. Due to the influence of gravity, the end of the guide rod A has a downward force, that is, the material end B has a downward force. Under the action of the two forces, the material end A will tilt up, deviate from the original position and form a gap with other materials. When taking the material, the two pieces of material will not overlap together, and only one piece will be taken away at a time; (4) After the steps of pushing and separating are completed, the two-axis material loading and transfer mechanism is started, and a material picking fixture on the two-axis material loading and transfer mechanism is transferred to the material preparation turntable mechanism, and the separated materials are grabbed and transferred to the positioning table; (5) After the material is transferred to the positioning table, at the same time, the material picking fixture is transferred back to the material preparation turntable mechanism to carry out the next material grabbing and transfer; (6) The double sheet detection system is started to detect whether there are two or more sheets of material stacked on the material transferred to the positioning table. If it is detected that there is only one sheet of material, the loading step continues, and the other material picking fixture on the two-axis loading and transfer mechanism transfers the current material on the positioning table to the punching bed. If it is detected that there are two or more sheets of material stacked, the loading step stops and an alarm is prompted; The step of detecting whether there are two or more pieces of material overlapping in step (6) is specifically as follows: Double sheet detection sensor A carries positive charge, and double sheet detection sensor B carries negative charge. A voltage U is formed between double sheet detection sensor A and double sheet detection sensor B. Voltage U changes with the medium between double sheet detection sensor A and double sheet detection sensor B. Positioning cylinder B positions the material. At this time, the material is between double sheet detection sensor A and double sheet detection sensor B. When there is only one piece of material, the voltage between double sheet detection sensor A and double sheet detection sensor B is U1. During actual detection, the voltage between double sheet detection sensor A and double sheet detection sensor B is U2. The signal amplifier amplifies the U1 and U2 signals and then compares them. If the voltages are the same, it is one piece of material. If the voltages are not equal, it is two or more pieces of material. (7) Repeat the steps of material pushing, sheet separation, primary transfer, inspection, and secondary transfer until the entire stack of materials on the current station is taken out. The material preparation turntable mechanism will then rotate to the next station for the entire stack of materials, and the cycle will continue.

2. A stamping two-axis multi-station automatic loading machine for implementing the method of claim 1, comprising a frame, characterized in that: The stamping two-axis multi-station loading machine also includes: A material preparation turntable mechanism, which is arranged on a frame and a machine platform; A two-axis material loading and transfer mechanism, which is arranged on a frame and a platform, and is provided with two material taking fixtures; A magnetic spreader, which is arranged on the two-axis material feeding transfer mechanism and forms a plurality of limit positions for stacking materials on the material preparation turntable mechanism; A material ejecting device, which is arranged on the frame; A double sheet detection system is arranged on a frame positioning platform.

3. The stamping two-axis multi-station automatic feeding machine according to claim 2 is characterized in that: The material preparation turntable mechanism includes a turntable, a workstation divider, a splitting sensor, a splitting sensor mounting plate, an induction motor, a motor mounting plate, a driving sprocket, a chain, a driven sprocket, and an induction rod; wherein the motor mounting plate, the splitting sensor mounting plate, and the induction motor are arranged below the turntable, the driving sprocket and the driven sprocket are arranged on the motor mounting plate, the chain is connected to the driving sprocket and the driven sprocket, and the workstation divider, the splitting sensor, and the induction rod are arranged on the splitting sensor mounting plate.

4. The stamping two-axis multi-station automatic feeding machine according to claim 2 is characterized in that: The two-axis feeding and transferring mechanism comprises: Upper and lower servo motor reducers, upper and lower servo motor mounting plates, upper and lower servo motors, upper and lower shaft sensors, upper and lower shaft sensors, upper and lower sliders, upper and lower slide rails, left and right servo motors, left and right servo motor mounting plates, left and right servo motor reducers, synchronous wheels, idler wheels, left and right support plates, left and right sliders, left and right slide rails, left and right limit sensor plates, two-axis fixed connecting plates, left and right shaft sensors A, left and right shaft sensors B, left and right shaft slide plates, upper and lower material buffer blocks, loading profiles, loading profile fixing plates, upper and lower shaft racks, and upper and lower shaft gears; wherein, the upper and lower shaft gears are meshed with the upper and lower shaft racks, the upper and lower shaft gears are connected to the upper and lower servo motors, the upper and lower servo motor reducers are connected to the upper and lower servo motors, the upper and lower servo motors are arranged on the upper and lower servo motor mounting plates, the upper and lower servo motor mounting plates and the loading profiles are arranged on the loading profile fixing plates, the upper and lower sliders are arranged on the upper and lower slide rails, the upper and lower material buffer blocks are arranged at the ends of the upper and lower slide rails, the upper and lower shaft sensors and the lower shaft sensors are arranged on the upper and lower shaft sliding mechanisms, and the two-axis fixed connecting plates are arranged on the main shafts of the left and right sliding mechanisms; The left and right servo motors are arranged on the left and right servo motor mounting plates, the left and right servo motor mounting plates are arranged on the left and right support plates, the left and right servo motor reducers are connected to the left and right servo motors, the synchronous wheels are connected to the left and right servo motors, the idler wheels are connected to the left and right shaft slides, the left and right shaft slides are arranged on the left and right support plates, the inner sides of the left and right support plates are connected to the left and right sliders, the left and right sliders are connected to the left and right slide rails, the left and right shaft sensors A and the left and right shaft sensors B are respectively arranged on the left and right shaft slides, and the left and right limit sensor plates are arranged on the left and right shaft sliding mechanisms.

5. The stamping two-axis multi-station automatic feeding machine according to claim 2 is characterized in that: The magnetic spreader includes two material guide rods A and two material guide rods B. The two material guide rods A and two material guide rods B are arranged on a turntable on a material preparation turntable mechanism to form a limit position for stacking materials. The material guide rods B are provided with magnets.

6. The stamping two-axis multi-station automatic loading machine according to claim 2 is characterized in that: The material ejection device includes a material ejection lifting main body part and a material checking and positioning part, the material ejection lifting main body part includes a device profile, a device fixing plate, a material ejection servo motor, a screw rod, a device slide, a bearing seat, a coupling, a material ejection plate, a lower limit sensor, an upper limit sensor, a slide rail, and a sensor sheet; wherein, the material ejection servo motor is arranged below the device profile, the device fixing plate is arranged on the side of the device profile, the screw rod, the bearing seat, the coupling, and the slide rail are arranged on the device profile, the lower limit sensor and the upper limit sensor are arranged on the slide rail, the sensor sheet is arranged on the device slide, the device slide is arranged on the slide rail and the screw rod, and the material ejection plate is arranged on the device slide; the material checking and positioning part includes a material sensor mounting profile, a material sensor mounting plate, and a material sensor, wherein the material sensor mounting profile is arranged on the material sensor mounting plate, the material sensor mounting plate is arranged on the frame machine, and the material sensor is arranged on the material preparation turntable mechanism station.

7. The stamping two-axis multi-station automatic loading machine according to claim 2 is characterized in that: The material picking jig includes a jig connecting plate, a hardware fixing plate, a hardware, and a suction cup, wherein the suction cup is arranged on the hardware, the hardware is arranged on the hardware fixing plate, the hardware fixing plate is arranged on the jig connecting plate, and the jig connecting plate is arranged on the two-axis material feeding transfer mechanism.

8. The stamping two-axis multi-station automatic loading machine according to claim 2 is characterized in that: The double-sheet detection system includes a positioning base plate, a positioning plate A, a positioning plate B, a positioning block A, a positioning block B, a cylinder mounting plate, a positioning cylinder A, a positioning cylinder B, a double-sheet detection sensor A, and a double-sheet detection sensor B; wherein, the positioning plate A, the positioning plate B, the positioning block A, and the positioning block B are arranged to form a detection area for limiting the position of the material, the positioning plate A and the positioning plate B are driven forward by the positioning cylinder A and the positioning cylinder B, the double-sheet detection sensor A is arranged above the detection area, the double-sheet detection sensor B is arranged below the detection area, the positioning cylinder A and the positioning cylinder B are arranged on the cylinder mounting plate, and the positioning base plate is arranged on the frame platform through a screw.

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