Crankshaft four-column servo punching machine

Abstract

The invention discloses a crankshaft four-column servo punching machine, and relates to the technical field of punching machines. Comprising a rack, a stamping cover is arranged on one side of the rack, a servo motor is installed in the stamping cover, the output end of the servo motor is connected with a crankshaft, an end cover is installed on the crankshaft, a pressurizing plate is installed on one side of the end cover, the other side of the end cover is connected with a connecting piece, the connecting piece is connected with a reciprocating plate, and multiple sets of guide columns are arranged on the upper side of the reciprocating plate. An upper die base is installed on the lower side of the reciprocating plate, a lower die base is installed below the upper die base, a clamping assembly is installed on the outer side of the lower die base, a liquid spraying cylinder and a waste box A are sequentially installed on one side of the upper die base, and a waste box B is installed on the other side of the lower die base. The clamping assembly positions and clamps a base material on the lower die base, the upper die base and the lower die base are matched to punch the base material, the liquid spraying cylinder sprays lubricating liquid on the base material, and the waste box A and the waste box B collect different waste materials generated by punching.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, in particular to a crankshaft four-column servo punching machine. Background Art

[0002] A punch press is a machine tool used for stamping, which is mainly used for shearing such as blanking and punching of sheet materials, or for pressing sheet materials into a specified shape. Compared with traditional mechanical processing, the stamping process has the advantages of saving materials and energy, high efficiency, and low technical requirements for operators, so it is widely used in national production. The working principle of the punch press is to use the power of the hydraulic system to push the punch of the punch press to work. When the machine is started, the hydraulic oil is pumped into a closed container to form a strong pressure, which pushes the piston and punch to perform the stamping work. After the work is completed, the pressure is released, and the punch returns to its original position, waiting for the next operation. Punches are very common in the manufacturing industry and are widely used in automobiles, electronics, construction and other industries. Through molds, punch presses can produce parts and accessories of various shapes, such as computer cases, switches and sockets, etc.

[0003] The existing punching machines have the following main problems: (1) Direct punching causes wear of the upper die seat and the base material, which cannot meet the use requirements; (2) The waste generated by punching is not classified, collected and processed. Summary of the invention

[0004] The object of the present invention is to provide a crankshaft four-column servo punch press to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crankshaft four-column servo punch press, comprising a frame, a punch cover is arranged on one side of the frame, a servo motor is installed in the punch cover, an output end of the servo motor is connected to a crankshaft, an end cover is installed on the crankshaft, a pressure plate is installed on one side of the end cover, a connecting piece is rotatably connected to the other side of the end cover, a reciprocating plate is connected to one side of the connecting piece, four groups of guide columns are arranged on the upper side of the reciprocating plate, an upper die seat is installed on the lower side of the reciprocating plate, a lower die seat is installed below the upper die seat, a clamping assembly is installed on the outer side of the lower die seat, a liquid spraying cylinder and a waste box A are installed in sequence on one side of the upper die seat, and a waste box B is installed on the other side of the lower die seat; The clamping assembly positions and clamps the substrate on the lower die base, the upper die base and the lower die base cooperate to punch the substrate, the liquid spraying tube sprays the lubricating liquid on the substrate, and the waste box A and the waste box B collect different wastes generated by punching.

[0006] A sliding plate is provided at the lower side of the lower die base, and a discharge port is provided through the lower die base and the sliding plate, and waste generated by stamping falls from the discharge port onto the frame between the two sets of guide rails, an illumination light source is provided at the lower side of the sliding plate, and the illumination light source is electrically connected to the control system, and two sets of vertical axes are respectively provided on the sliding plates on both sides of the illumination light source, and classification plates are slidably installed on the vertical axes on both sides, and a first spring is connected between the classification plate and the sliding plate, and the first spring is sleeved on the vertical axis, and both ends of the first spring are electrically connected to the control system, and a first displacement sensor is installed on the sliding plate opposite to the classification plate, and the first displacement sensor is used to monitor the moving distance of the classification plate; A negative plate is arranged at the lower side of the classification plate, and the negative plate is connected to the negative pole of the negative power supply.

[0007] The interior of the stamping cover is hollow, and two groups of partitions are arranged inside the stamping cover. The crankshaft consists of two groups of eccentric disks, two groups of transmission shafts and an intermediate shaft. The two groups of transmission shafts are concentrically arranged on the two groups of eccentric disks, and the two groups of eccentric disks are eccentrically arranged on both sides of the intermediate shaft. One group of transmission shafts passes through the partition on the left side and is connected to the output end of the servo motor, and the other group of transmission shafts is rotatably connected to the partition on the right side through a bearing. The servo motor is installed on the stamping cover, and the servo motor has an encoder built in. The end cover is sleeved on the intermediate shaft, and a sliding sealing connection is formed between the pressure plate and the two groups of partitions. A pressure chamber is formed between the two groups of partitions and the pressure plate. A guide shaft is arranged on the stamping cover on the upper side of the pressure plate, and the pressure plate slides on the guide shaft. A second spring is sleeved on the guide shaft, and the second spring connects the pressure plate and the stamping cover. An arc plate is arranged on the lower side of the pressure plate, and the arc plate abuts against the end cover.

[0008] Slide blocks are respectively arranged on the sliding plates on both sides of the lighting source, guide rails are slidably installed in the slide blocks on both sides, the guide rails on both sides are arranged on the frame, the sliding plate is threadedly connected with a screw rod, the screw rod is located on the right side of the slide block, both ends of the screw rod are installed on the frame through bearing seats, one end of the screw rod passes through the bearing seat and is connected to the output end of the transverse motor, and the transverse motor is installed on the frame.

[0009] The partitions on both sides are respectively provided with an air inlet and an air outlet, the air inlet passes through the stamping cover through a pipeline and is connected to the external atmosphere, the air inlet and the air outlet are both connected to the pressurized chamber, and solenoid valves are installed in the air inlet and the air outlet, and the solenoid valves are electrically connected to the control system, and a pressure sensor is installed on the partition, and the pressure sensor on the partition is used to monitor the air pressure in the pressurized chamber; The liquid spray cylinder is installed on the frame, the interior of the liquid spray cylinder is hollow, lubricating liquid is arranged in the liquid spray cylinder, a plurality of refrigeration plates are arranged on the inner wall of the liquid spray cylinder, a plurality of the refrigeration plates are in contact with the lubricating liquid, the liquid spray cylinder is connected with the air outlet through a pipeline, another group of pressure sensors is installed inside the liquid spray cylinder, a filling port is arranged on the upper side of the liquid spray cylinder, the filling port is used for filling lubricating oil, a plurality of spray ports are arranged on the lower side of the liquid spray cylinder, a plurality of the spray ports are directly facing the substrate, a switch valve is installed in each of the spray ports, and the switch valve is electrically connected to the control system.

[0010] A positive plate and a detection plate are arranged on the frame between the upper mold base and the liquid spray cylinder. The positive plate is located on one side of the detection plate. Both the positive plate and the detection plate are located between two sets of guide rails. The positive plate is connected to the positive pole of the power supply. A photoresistor is arranged on the upper side of the detection plate, and the photoresistor is electrically connected to the control system.

[0011] Several of the refrigeration plates are provided with semiconductors and metal plates of two different materials, one end of the semiconductors of the two different materials are connected to the metal plate, the semiconductors of the two different materials are connected to the control system through wires, and the semiconductors and metal plates of the two different materials are the refrigeration ends of the Peltier effect.

[0012] The waste box A and the waste box B are both installed on the frame, and the waste box A and the waste box B are located at the lower side of two sets of guide rails. The waste box A and the waste box B are both provided with discharge plates, and the discharge plates are detachably connected to the waste box A and the waste box B.

[0013] The clamping assembly is located on the upper side of the sliding plate. The clamping assembly is a positioning electric cylinder. The positioning electric cylinder is installed on the sliding plate. A positioning plate is installed on the telescopic rod of the positioning electric cylinder. The positioning plate passes through the lower mold base and contacts the substrate. There are multiple groups of positioning electric cylinders and positioning plates along the outer side of the lower mold base.

[0014] A horizontal plate is arranged in the stamping cover between the two groups of partitions, and four groups of guide sleeves are installed on the upper side of the horizontal plate. The four groups of guide columns pass through the horizontal plate and are slidably connected with the four groups of guide sleeves respectively. The middle part of the connecting piece passes through the horizontal plate, and the horizontal plate limits the connecting piece to move up and down. The opposite sides of the upper die base and the lower die base are adapted to each other. A control panel is arranged on the frame, and the control system is arranged in the control panel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Spray lubricating liquid on the substrate before stamping to reduce the wear of the upper die seat and the substrate and improve the yield rate. During the upward movement of the pressure plate, the air pressure in the pressure chamber increases, and the pressure sensor in the pressure chamber feeds back the air pressure data to the control system. The control system opens the solenoid valve in the air outlet, so that the pressurized air is transported to the spray barrel through the air outlet and the pipeline, and the pressurized air is mixed with the lubricating liquid in the spray barrel. The mixed air and lubricating liquid are sprayed on the substrate from the spray port, reducing the wear during stamping and improving the yield rate. The cooled lubricating liquid can cool the upper die seat.

[0016] 2. The waste is classified and processed through the classification plates on both sides to facilitate the subsequent utilization of the waste. When the calculated waste volume is smaller than the set volume, the control system cuts off the power of the first spring on the right, and the first spring on the right pushes the classification plate on the right to move downward and contact the frame. After that, the horizontal motor drives the sliding plate to move to the left through the screw rod, and the sliding plate drives the classification plate on the right to move to the left. The classification plate on the right drives the waste to move to the left and falls into the waste box A to achieve different utilization of the waste.

[0017] 3. The waste detection can be realized by combining the photoresistor and the lighting source, and the area of ​​the waste can be detected quickly. When the lighting source and the photoresistor on the detection board are connected to the circuit, the lighting source will shine light on the waste, and the rest of the light will shine on the photoresistor. The control system detects the current of the photoresistor and calculates the area of ​​the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 The structural diagram after removing part of the rack on the right side; Figure 3 yes Figure 2 A partial enlarged view of the middle A area; Figure 4 yes Figure 2 A front view of Figure 5 yes Figure 4 Partial cross-sectional view of the middle BB position; Figure 6 yes Figure 4 A three-dimensional image without the stamping cover, guide shaft, and second spring; Figure 7 yes Figure 6 Side view after removing the lower part of the frame, etc.; Figure 8 yes Figure 7 Schematic diagram of the structure on the right side of the middle part (after removing the substrate); Fig. 9 yes Figure 8 Bottom view of Fig.10 It is a schematic diagram of the internal structure of the spray cylinder.

[0019] In the figure: 1. control panel; 11. frame; 12. guide column; 13. substrate; 14. stamping cover; 141. partition; 15. transverse motor; 151. sliding plate; 152. screw rod; 153. guide rail; 16. pressure plate; 17. waste box A; 171. waste box B; 2. servo motor; 21. crankshaft; 211. eccentric disk; 212. transmission shaft; 213. intermediate shaft; 22. end cover; 23. connector; 24. reciprocating plate; 25. air inlet; 251. air outlet; 26. upper die seat; 261. lower die seat; 262. lighting source; 263. classification plate; 264. negative plate; 265. positive plate; 266. detection plate; 267. positioning electric cylinder; 268. positioning plate; 269. first spring; 3. liquid spray cylinder; 31. refrigeration plate. DETAILED DESCRIPTION

[0020] 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.

[0021] Example: Figure 1-Figure 10 As shown, the present invention provides a technical solution of a crankshaft four-column servo punch press, including a frame 11, a punch cover 14 is arranged on one side of the frame 11, a servo motor 2 is installed in the punch cover 14, an output end of the servo motor 2 is connected to a crankshaft 21, an end cover 22 is installed on the crankshaft 21, a pressure plate 16 is installed on one side of the end cover 22, a connecting piece 23 is rotatably connected to the other side of the end cover 22, a reciprocating plate 24 is connected to one side of the connecting piece 23, four groups of guide columns 12 are arranged on the upper side of the reciprocating plate 24, an upper die seat 26 is installed on the lower side of the reciprocating plate 24, and a The lower die base 261 has a clamping assembly installed on the outer side of the lower die base 261, a liquid spray cylinder 3 and a waste box A17 are installed on one side of the upper die base 26 in sequence, and a waste box B171 is installed on the other side of the lower die base 261; the clamping assembly positions and clamps the substrate 13 on the lower die base 261, the upper die base 26 and the lower die base 261 cooperate to stamp the substrate 13, the liquid spray cylinder 3 sprays the lubricating liquid on the substrate 13, the waste box A17 and the waste box B171 collect different wastes generated by stamping, and a control panel 1 is provided on the frame 11, and the control system is provided in the control panel 1.

[0022] A sliding plate 151 is arranged at the lower side of the lower die base 261, and a discharge port is arranged through the lower die base 261 and the sliding plate 151, and the waste generated by stamping falls from the discharge port onto the frame 11 between the two sets of guide rails 153, and an illumination light source 262 is arranged at the lower side of the sliding plate 151, and the illumination light source 262 is electrically connected to the control system, and two sets of vertical axes are arranged on the sliding plates 151 on both sides of the illumination light source 262, respectively, and classification plates 263 are slidably installed on the vertical axes on both sides, and a first spring 269 is connected between the classification plate 263 and the sliding plate 151, and the first spring 269 is sleeved on the vertical axis, and both ends of the first spring 269 are electrically connected to the control system, and a first displacement sensor is installed on the sliding plate 151 opposite to the classification plate 263, and the first displacement sensor is used to monitor the moving distance of the classification plate 263; a negative plate 263 is arranged at the lower side of the classification plate 263 64, the negative plate 264 is connected to the negative electrode of the negative power supply, and sliders are respectively provided on the sliding plates 151 on both sides of the illumination light source 262, and guide rails 153 are slidably installed in the sliders on both sides, and the guide rails 153 on both sides are arranged on the frame 11, and the sliding plate 151 is threadedly connected with a screw rod 152, and the screw rod 152 is located on the side of the slider on the right side, and both ends of the screw rod 152 are installed on the frame 11 through a bearing seat, and one end of the screw rod 152 passes through the bearing seat and is connected to the output end of the horizontal motor 15, and the horizontal motor 15 is installed on the frame 11, and the waste box A17 and the waste box B171 are both installed on the frame 11, and the waste box A17 and the waste box B171 are located on the lower side of the two sets of guide rails 153, and the waste box A17 and the waste box B171 are both provided with a discharge plate, and the discharge plate and the waste box A17 and the waste box B171 are detachably connected.

[0023] The stamping cover 14 is hollow inside, and two groups of partitions 141 are arranged inside the stamping cover 14. A transverse plate is arranged inside the stamping cover 14 between the two groups of partitions 141. Four groups of guide sleeves are installed on the upper side of the transverse plate. The four groups of guide columns 12 pass through the transverse plate and are respectively slidably connected with the four groups of guide sleeves. The middle part of the connecting member 23 passes through the transverse plate, and the transverse plate limits the connecting member 23 to move up and down. The opposite sides of the upper die seat 26 and the lower die seat 261 are adapted to each other. The crankshaft 21 is composed of two groups of eccentric disks 211, two groups of transmission shafts 212 and an intermediate shaft 213. The two groups of transmission shafts 212 are respectively concentrically arranged on the two groups of eccentric disks 211. The two groups of eccentric disks 211 are eccentrically arranged on both sides of the intermediate shaft 213. One group of transmission shafts 212 passes through The servo motor 2 is connected to the output end of the servo motor 2 through the partition 141 on the left side, and the other group of transmission shafts 212 is rotatably connected to the partition 141 on the right side through a bearing. The servo motor 2 is installed on the stamping cover 14, and the servo motor 2 has an encoder built in. The end cover 22 is sleeved on the intermediate shaft 213, and a sliding sealing connection is formed between the pressure plate 16 and the two groups of partitions 141. A pressurized chamber is formed between the two groups of partitions 141 and the pressure plate 16. A guide shaft is provided on the stamping cover 14 on the upper side of the pressure plate 16, and the pressure plate 16 slides on the guide shaft. A second spring is sleeved on the guide shaft, and the second spring connects the pressure plate 16 and the stamping cover 14. An arc plate is provided on the lower side of the pressure plate 16, and the arc plate abuts against the end cover 22. The partitions 141 on both sides are respectively provided with an air inlet 25 and an air outlet 251. The air inlet 25 passes through the stamping cover 14 through a pipeline and is connected to the external atmosphere. The air inlet 25 and the air outlet 251 are both connected to the pressurized chamber. Solenoid valves are installed in the air inlet 25 and the air outlet 251. The solenoid valves are electrically connected to the control system. A pressure sensor is installed on the partition 141. The pressure sensor on the partition 141 is used to monitor the air pressure in the pressurized chamber. The spray cylinder 3 is installed on the frame 11. The liquid spraying tube 3 is empty, and lubricating liquid is arranged in the liquid spraying tube 3. A plurality of cooling plates 31 are arranged on the inner wall of the liquid spraying tube 3, and the plurality of cooling plates 31 are in contact with the lubricating liquid. The liquid spraying tube 3 is connected with the air outlet 251 through a pipeline. Another group of pressure sensors is installed inside the liquid spraying tube 3. A filling port is arranged on the upper side of the liquid spraying tube 3, and the filling port is used for filling lubricating oil. A plurality of spraying ports are arranged on the lower side of the liquid spraying tube 3, and the plurality of spraying ports are directly facing the substrate 13. Switch valves are installed in the plurality of spraying ports, and the switch valves are electrically connected to the control system.

[0024] A positive plate 265 and a detection plate 266 are arranged on the frame 11 between the upper mold base 26 and the liquid spray cylinder 3. The positive plate 265 is located on one side of the detection plate 266. The positive plate 265 and the detection plate 266 are both located between the two groups of guide rails 153. The positive plate 265 is connected to the positive pole of the power supply. A photoresistor is arranged on the upper side of the detection plate 266, and the photoresistor is electrically connected to the control system.

[0025] Several refrigeration plates 31 are provided with semiconductors and metal plates of two different materials, one end of the semiconductors of the two different materials are connected to the metal plate, and the semiconductors of the two different materials are connected to the control system through wires. The semiconductors of the two different materials and the metal plate are the refrigeration ends of the Peltier effect. The control system cools the lubricating liquid through the refrigeration end, and sprays the lubricating liquid on the surface of the substrate 13 to reduce the wear of the substrate 13 and the upper mold base 26.

[0026] The clamping assembly is located on the upper side of the sliding plate 151. The clamping assembly is a positioning electric cylinder 267. The positioning electric cylinder 267 is installed on the sliding plate 151. A positioning plate 268 is installed on the telescopic rod of the positioning electric cylinder 267. The positioning plate 268 passes through the lower mold base 261 and contacts the substrate 13. There are multiple groups of positioning electric cylinders 267 and positioning plates 268 along the outer side of the lower mold base 261.

[0027] Working principle: Press the start button on the control panel 1 to start the punch press. The staff places the substrate 13 in the lower die base 261. The control system controls the positioning electric cylinder 267 to drive the positioning plate 268 to move toward the substrate 13. The positioning plate 268 positions and clamps the substrate 13. Since multiple sets of positioning plates 268 and positioning electric cylinders 267 are arranged on the outside of the lower die base 261, the multiple sets of positioning plates 268 and positioning electric cylinders 267 cooperate to position and clamp the substrate 13 at various positions.

[0028] After the multiple groups of positioning electric cylinders 267 drive the positioning plates 268 to position and clamp the substrate 13, the multiple groups of positioning electric cylinders 267 feed back the position signal to the control system, and the control system controls the transverse motor 15 to drive the screw rod 152 to rotate, and the screw rod 152 drives the sliding plate 151 to move to the left, and the sliding plate 151 drives the lower mold base 261, the lighting source 262, the classification plate 263 and the substrate 13 to move to the left, so that the substrate 13 is located directly below the liquid spraying cylinder 3, and the switch valve in the spraying port is opened to spray the lubricating liquid on the surface of the substrate 13. After that, the transverse motor 15 continues to drive the sliding plate 151 to move to the left, so that the substrate 13 on the lower mold base 261 is opposite to the upper mold base 26, so as to facilitate the subsequent stamping process of the substrate 13.

[0029] When the transverse motor 15 drives the substrate 13 to move to the bottom of the upper die holder 26 through the sliding plate 151, the encoder in the transverse motor 15 feeds back data to the control system, and the control system controls the servo motor 2 to drive the transmission shaft 212 on the left to rotate. The transmission shaft 212 on the left drives the intermediate shaft 213 to rotate through the eccentric disk 211 on the left and moves downward at the same time. The intermediate shaft 213 drives the end cover 22 to move downward. The end cover 22 pushes the reciprocating plate 24 to move downward through the connecting piece 23. The reciprocating plate 24 drives the upper die holder 26 to move downward. The upper die holder 26 moves downward. The substrate 13 is punched in cooperation with the lower die base 261. The waste generated by the punching falls onto the frame 11 between the two sets of guide rails 153 through the discharge port. The servo motor 2 continues to drive the transmission shaft 212, the eccentric disk 211 and the intermediate shaft 213 to rotate. The transmission shaft 212 drives the intermediate shaft 213 to rotate through the eccentric disk 211 on the left and moves upward at the same time. The intermediate shaft 213 drives the reciprocating plate 24 to move upward through the connecting piece 23. The reciprocating plate 24 drives the upper die base 26 to move upward, so that the upper die base 26 can punch the substrate 13 again.

[0030] When the end cover 22 moves upward, the end cover 22 pushes the upper arc plate to move upward, and the arc plate pushes the pressure plate 16 to move upward and compresses the spring. During the upward movement of the pressure plate 16, the air pressure in the pressure chamber increases, and the pressure sensor in the pressure chamber feeds back the air pressure data to the control system. The control system opens the solenoid valve in the air outlet 251, so that the pressurized air is transported to the spray barrel 3 through the air outlet 251 and the pipeline, so that the pressurized air is mixed with the lubricating liquid in the spray barrel 3.

[0031] When the end cover 22 moves downward, the spring on one side of the pressure plate 16 is released, and the spring pushes the pressure plate 16 and the arc plate to move downward. When the pressure plate 16 moves downward, the volume of the pressure chamber gradually increases, and the pressure sensor in the pressure chamber feeds back the pressure data to the control system. The control system controls the solenoid valve in the air outlet 251 to close and the solenoid valve in the air inlet 25 to open, so that external air enters the pressure chamber through the pipeline and the air inlet 25, thereby realizing the air intake processing of the pressure chamber, so as to facilitate the subsequent pressurization and transportation of the air.

[0032] When the upper mold base 26 moves to the uppermost side, the encoder in the servo motor 2 feeds back data to the control system, and the control system de-energizes the first spring 269 on the left and energizes the first spring 269 on the right. After being de-energized, the first spring 269 on the left gradually becomes longer under the action of its own elastic force, and the first spring 269 on the left pushes the classification plate 263 on the left to move downward and contact the frame 11 between the two sets of guide rails 153. After the first spring 269 on the right is energized, a mutually attractive magnetic field is generated between each turn, and this magnetic field gradually shortens the first spring 269 on the right, and the first spring 269 on the right pulls the classification plate 263 on the right to move upward and out of contact with the frame 11.

[0033] When the classification plates 263 on the left and right are located at the bottom and the top respectively, the first sensors on both sides feed back the displacement data of the classification plates 263 on both sides to the control system, and the control system drives the screw rod 152 to rotate in the opposite direction through the transverse motor 15, and the screw rod 152 drives the sliding plate 151 to move to the right, and the sliding plate 151 drives the classification plate 263 on the left to move to the right, and the classification plate 263 on the left pushes the waste to move to the right onto the positive plate 265. When the waste moves to the positive plate 265, the transverse motor 15 feeds back the displacement data of the sliding plate 151 and the left classification plate 263 to the control system, and the control system controls the first spring 269 on the left to be energized, and the first spring 269 pulls the classification plate 263 on the left to move upward and out of contact with the frame 11.

[0034] When the first springs 269 on both sides are energized, the control system drives the sliding plate 151 to continue to move to the right through the transverse motor 15, so that the negative plate 264 in the left classification plate 263 is opposite to the positive plate 265 and the waste. At this time, the control system connects the negative plate 264 and the positive plate 265 to the negative pole and the positive pole of the power supply respectively, and cuts off the power to the first spring 269 on the left. The first spring 269 pushes the left classification plate 263 to move downward, so that the negative plate 264 on the lower side of the left classification plate 263 contacts the waste.

[0035] When the negative plate 264 contacts the waste, current flows through the waste between the positive plate 265 and the negative plate 264. At this time, the first sensor on the left feeds back the displacement data of the left classification plate 263 to the control system, and the control system obtains the height data of the waste by calculation.

[0036] When the control system obtains the height data of the waste, the control system energizes the first spring 269 on the left again, and the first spring 269 on the left pulls the classification plate 263 and the negative plate 264 on the left to move upward and out of contact with the waste. The control system drives the sliding plate 151 and the classification plates 263 on both sides to move a distance to the left through the transverse motor 15, so that the classification plate 263 on the left is away from the waste. After that, the control system cuts off the power to the first spring 269 on the left, and the first spring 269 on the left pushes the classification plate 263 on the left to move downward and contact with the frame 11. After that, the transverse motor 15 continues to drive the sliding plate 151 to move right through the screw rod 152, and the sliding plate 151 pushes the waste to move right to the detection plate 266 through the classification plate 263 on the left, and the waste is located on the photoresistor on the detection plate 266.

[0037] When the waste moves to the right onto the detection plate 266, the control system energizes the first spring 269 on the left again based on the data of the encoder inside the transverse motor 15, and the first spring 269 on the left pulls the classification plate 263 on the left to move upward. After that, the transverse motor 15 drives the sliding plate 151 to move to the right through the screw rod 152, and the sliding plate 151 drives the lighting light source 262 to face the detection plate 266. When the lighting light source 262 faces the photoresistor on the detection plate 266, the encoder inside the transverse motor 15 feeds back data to the control system, and the control system connects the lighting light source 262 and the photoresistor on the detection plate 266 to the circuit.

[0038] When the illumination source 262 and the photoresistor on the detection board 266 are connected to the circuit, the illumination source 262 shines light on the waste material, and the rest of the light shines on the photoresistor. The control system detects the current of the photoresistor and obtains the area of ​​the waste material through calculation.

[0039] After the control system obtains the area and height of the waste, the control system can calculate the approximate volume of the waste, and the control system compares the calculated waste volume with the set volume. When the calculated waste volume is smaller than the set volume, the control system cuts off the power to the first spring 269 on the right, and the first spring 269 on the right pushes the classification plate 263 on the right to move downward and contact the frame 11. Thereafter, the transverse motor 15 drives the sliding plate 151 to move to the left through the screw rod 152, and the sliding plate 151 drives the classification plate 263 on the right to move to the left. The classification plate 263 on the right drives the waste to move to the left and fall into the waste box A17. The set volume is set in advance by the staff through the control panel 1.

[0040] When the waste volume calculated by the control system is greater than the set volume, the control system cuts off the power to the first spring 269 on the left, and the first spring 269 on the left pushes the classification plate 263 on the left to move downward and contact the frame 11. Thereafter, the transverse motor 15 drives the sliding plate 151 to move right through the screw rod 152, and the sliding plate 151 drives the classification plate 263 on the left to move right, and the classification plate 263 on the left drives the waste to move right and fall into the waste box B171.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A crankshaft four-column servo punch press, characterized in that: The machine comprises a frame (11), a stamping cover (14) is arranged on one side of the frame (11), a servo motor (2) is installed in the stamping cover (14), an output end of the servo motor (2) is connected to a crankshaft (21), an end cover (22) is installed on the crankshaft (21), a pressure plate (16) is installed on one side of the end cover (22), a connecting piece (23) is rotatably connected to the other side of the end cover (22), and one side of the connecting piece (23) is connected to a A reciprocating plate (24), wherein four groups of guide columns (12) are arranged on the upper side of the reciprocating plate (24), an upper die seat (26) is installed on the lower side of the reciprocating plate (24), a lower die seat (261) is installed below the upper die seat (26), a clamping assembly is installed on the outer side of the lower die seat (261), a liquid spraying cylinder (3) and a waste box A (17) are installed in sequence on one side of the upper die seat (26), and a waste box B (171) is installed on the other side of the lower die seat (261); The clamping assembly positions and clamps the substrate (13) on the lower die base (261); the upper die base (26) and the lower die base (261) cooperate to stamp the substrate (13); the liquid spraying cylinder (3) sprays lubricating liquid on the substrate (13); and the waste box A (17) and the waste box B (171) collect different wastes generated by stamping.

2. A crankshaft four-column servo punch press according to claim 1, characterized in that: A sliding plate (151) is arranged at the lower side of the lower die base (261), a material discharge port is arranged through the lower die base (261) and the sliding plate (151), an illumination light source (262) is arranged at the lower side of the sliding plate (151), the illumination light source (262) is electrically connected to a control system, two groups of vertical axes are arranged on the sliding plate (151) on both sides of the illumination light source (262), classification plates (263) are slidably mounted on the vertical axes on both sides, a first spring (269) is connected between the classification plate (263) and the sliding plate (151), the first spring (269) is sleeved on the vertical axis, both ends of the first spring (269) are electrically connected to the control system, and a first displacement sensor is mounted on the sliding plate (151) opposite to the classification plate (263); A negative electrode plate (264) is provided on the lower side of the classification plate (263), and the negative electrode plate (264) is connected to the negative electrode of the negative power supply.

3. A crankshaft four-column servo punch press according to claim 2, characterized in that: The stamping cover (14) is hollow inside. Two groups of partitions (141) are arranged inside the stamping cover (14). The crankshaft (21) is composed of two groups of eccentric disks (211), two groups of transmission shafts (212) and an intermediate shaft (213). The two groups of transmission shafts (212) are respectively arranged concentrically on the two groups of eccentric disks (211). The two groups of eccentric disks (211) are eccentrically arranged on both sides of the intermediate shaft (213). One group of the transmission shafts (212) passes through the partition (141) on the left side and is connected to the output end of the servo motor (2). The other group of the transmission shafts (212) is rotatably connected to the partition (141) on the right side via a bearing. The servo motor (2) is mounted on the stamping cover (14). The servo motor (2) has an encoder built in. The end cover (22) is sleeved on the intermediate shaft (213), and a sliding sealing connection is formed between the pressure plate (16) and the two groups of partitions (141). A pressure chamber is formed between the two groups of partitions (141) and the pressure plate (16). A guide shaft is provided on the stamping cover (14) on the upper side of the pressure plate (16), and the pressure plate (16) slides on the guide shaft. A second spring is sleeved on the guide shaft, and the second spring connects the pressure plate (16) and the stamping cover (14). An arc plate is provided on the lower side of the pressure plate (16), and the arc plate abuts against the end cover (22).

4. The crankshaft four-column servo punch press according to claim 3, characterized in that: Slide blocks are respectively arranged on the sliding plates (151) on both sides of the illumination light source (262), guide rails (153) are slidably installed in the slide blocks on both sides, and the guide rails (153) on both sides are arranged on the frame (11). The sliding plates (151) are threadedly connected with a screw rod (152), and the screw rod (152) is located on one side of the slide block on the right side. Both ends of the screw rod (152) are installed on the frame (11) through a bearing seat, and one end of the screw rod (152) passes through the bearing seat and is connected to the output end of a transverse motor (15), and the transverse motor (15) is installed on the frame (11).

5. The crankshaft four-column servo punch press according to claim 4, characterized in that: The partitions (141) on both sides are respectively provided with an air inlet (25) and an air outlet (251); the air inlet (25) passes through the stamping cover (14) through a pipeline and is connected to the external atmosphere; the air inlet (25) and the air outlet (251) are both connected to the pressurized chamber; solenoid valves are installed in the air inlet (25) and the air outlet (251); the solenoid valves are electrically connected to a control system; and a pressure sensor is installed on the partition (141); The liquid spray barrel (3) is mounted on the frame (11); the interior of the liquid spray barrel (3) is hollow; a lubricating liquid is arranged in the liquid spray barrel (3); a plurality of cooling plates (31) are arranged on the inner wall of the liquid spray barrel (3); the plurality of cooling plates (31) are in contact with the lubricating liquid; the liquid spray barrel (3) is connected to the air outlet (251) via a pipeline; another group of pressure sensors is installed in the liquid spray barrel (3); a filling port is arranged on the upper side of the liquid spray barrel (3); a plurality of spraying ports are arranged on the lower side of the liquid spray barrel (3); the plurality of spraying ports are directly opposite to the substrate (13); a switch valve is installed in each of the plurality of spraying ports; the switch valve is electrically connected to a control system.

6. The crankshaft four-column servo punch press according to claim 5, characterized in that: A positive plate (265) and a detection plate (266) are arranged on the frame (11) between the upper mold base (26) and the liquid spraying cylinder (3); the positive plate (265) is located on one side of the detection plate (266); the positive plate (265) and the detection plate (266) are both located between two groups of guide rails (153); the positive plate (265) is connected to the positive electrode of the power supply; a photoresistor is arranged on the upper side of the detection plate (266); and the photoresistor is electrically connected to the control system.

7. The crankshaft four-column servo punch press according to claim 6, characterized in that: A plurality of the refrigeration plates (31) are provided with semiconductors made of two different materials and a metal plate, one end of the semiconductors made of two different materials are connected to the metal plate, and the semiconductors made of two different materials are connected to a control system via a wire.

8. The crankshaft four-column servo punch press according to claim 7, characterized in that: The waste box A (17) and the waste box B (171) are both mounted on the frame (11). The waste box A (17) and the waste box B (171) are located at the lower side of the two sets of guide rails (153). The waste box A (17) and the waste box B (171) are both provided with a discharge plate. The discharge plate is detachably connected to the waste box A (17) and the waste box B (171).

9. The crankshaft four-column servo punch press according to claim 8, characterized in that: The clamping assembly is located on the upper side of the sliding plate (151). The clamping assembly is a positioning electric cylinder (267). The positioning electric cylinder (267) is installed on the sliding plate (151). A positioning plate (268) is installed on the telescopic rod of the positioning electric cylinder (267). The positioning plate (268) passes through the lower mold base (261) and contacts the substrate (13). Multiple groups of the positioning electric cylinder (267) and the positioning plate (268) are arranged along the outer side of the lower mold base (261).

10. The crankshaft four-column servo punch press according to claim 9, characterized in that: A transverse plate is arranged inside the punching cover (14) between the two groups of partition plates (141), and four groups of guide sleeves are installed on the upper side of the transverse plate. The four groups of guide columns (12) pass through the transverse plate and are respectively slidably connected to the four groups of guide sleeves. The middle part of the connecting member (23) passes through the transverse plate, and the transverse plate restricts the connecting member (23) to move up and down. The opposite sides of the upper die seat (26) and the lower die seat (261) are adapted to each other. A control panel (1) is arranged on the frame (11), and the control system is arranged in the control panel (1).

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