Punching machine for metal machining

Abstract

The invention relates to the technical field of punching machines, and provides a metal machining punching machine which comprises a punching bottom plate, a punching power assembly with a stretching position adjusting function, a stretching positioning assembly, a material carrying assembly with compression position adjusting and conveying functions, a conveying power assembly, a plate positioning assembly and a die bearing assembly with a position adjusting function. A stamping frame is arranged on the stamping bottom plate, a stamping power box is arranged on one side of the stamping frame, a stamping power assembly is arranged in the stamping power box, a stretching positioning assembly is arranged on one side of the stamping frame and meshed with the stamping power assembly, the number of the material carrying assemblies is two, and the two material carrying assemblies are symmetrically arranged on the stamping bottom plate. The conveying power assembly is arranged on the stamping bottom plate and connected with the two material carrying assemblies. According to the technical scheme, the problem that the performance of a metal plate is difficult to detect before the metal plate is punched by a punching machine in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of punching machines, and in particular to a punching machine for metal processing. Background Art

[0002] A punch press is a piece of mechanical equipment used for metal processing. It is mainly used to punch metal sheets through molds. The basic working principle of a punch press is that a flywheel driven by an electric motor drives the punch shaft to perform linear reciprocating motion, and then a belt or chain drives the slider to drive the metal sheet to move on the guide rail, so that the metal sheet moves to the top of the mold, and the metal sheet on the mold is punched by the punch head to obtain the required stamped product. Among them, the shape of the mold determines the shape of the stamped product.

[0003] Nowadays, with the continuous development of science and technology, although the punch press in the existing technology has significant advantages in precision and production efficiency, and can meet the stamping operations of most metal sheets, it is difficult to test the tensile or bending strength of the metal sheets to be stamped before actual stamping. Before stamping the metal sheets, it is difficult to adjust the stamping pressure of the punch press according to the performance of the metal sheets.

[0004] When stamping metal sheets, if the stamping pressure is too high, not only will the mold be subjected to a load beyond the design range, resulting in excessive wear on the mold surface, but it may also cause excessive plastic flow of the metal material during the deformation process, leading to defects such as cracks and excessive deformation in the workpiece. When the stamping pressure is too low, not only will the metal material fail to deform sufficiently, resulting in the workpiece failing to achieve the expected shape and size requirements, but also during stamping, too low a pressure may prevent the metal sheet from fully fitting the mold, resulting in defects such as an uneven surface and wrinkles on the workpiece, affecting the product's appearance quality and performance. Summary of the invention

[0005] The present invention provides a punching machine for metal processing, which is used to solve the problem mentioned in the background art that it is difficult for the punching machine in the prior art to detect the performance of the metal plate before processing the metal plate.

[0006] The technical solution of the present invention is as follows: A metal processing punching machine comprises a punching base plate, a punching power assembly with a stretching and positioning function, a stretching and positioning assembly, a material carrying assembly with a compression and positioning and conveying function, a conveying power assembly, a plate positioning assembly and a die bearing assembly with a position adjustment function; A stamping frame is arranged on the stamping bottom plate, and a stamping power box is arranged on one side of the stamping frame; The stamping power assembly is arranged in the stamping power box; The stretching positioning assembly is arranged on one side of the punching frame, and the stretching positioning assembly is engaged with the punching power assembly; There are two material-carrying assemblies, and the two material-carrying assemblies are symmetrically arranged on the stamping bottom plate; The conveying power assembly is arranged on the stamping bottom plate, and the conveying power assembly is connected to the two material carrying assemblies to drive the material carrying assemblies to move; The plate positioning components are provided with two groups, and the plate positioning components are arranged on the stamping bottom plate, and the plate positioning components correspond to the material loading components one by one; The mold bearing assembly is detachably arranged between the two material carrying assemblies.

[0007] As a preferred technical solution of the present application, the stamping power assembly includes a power reciprocating screw, a power stretching slide plate, a stamping motor, a power disc, an eccentric shaft, a power slip ring, a hexagonal power rod, a stamping pressure sensor and a three-jaw chuck; There are two power reciprocating screw rods, both of which are rotatably arranged in the stamping power box, and each of the power reciprocating screw rods is threadedly connected with a power ball nut group; The power stretching slide plates are provided with two, the power stretching slide plates penetrate and are slidably arranged on the stamping power box, the power stretching slide plates correspond to the power ball nut groups one by one, and the power stretching slide plates are connected to the power ball nut groups; The stamping motor is installed on one side of the stamping power box, and the output end of the stamping motor is connected to one end of one of the power reciprocating screw rods; There are two power discs, each of which corresponds to the power reciprocating screw rod one by one, and each power disc is arranged on the power reciprocating screw rod; The eccentric shaft is rotatably arranged between the two power discs, and the eccentric shaft is located at an eccentric position of the power discs; The power slip ring is sleeved on the eccentric shaft; The hexagonal power rod penetrates and is slidably arranged on the stamping power box, and one end of the hexagonal power rod is connected to one end of the power slip ring; The stamping pressure sensor is arranged at the other end of the hexagonal power rod; The three-jaw chuck is arranged on the detection end of the stamping pressure sensor, and a stamping head is detachably arranged in the three-jaw chuck.

[0008] As a preferred technical solution of the present application, the stretch positioning assembly includes a positioning cylinder, a positioning slide, a positioning limit rod and a stretch positioning part; The positioning cylinder is installed on one side of the punching frame; The positioning slide is arranged on the output end of the positioning cylinder; There are multiple position adjustment and limiting rods, which penetrate and are slidably arranged on the stamping frame, and one end of the position adjustment and limiting rod is connected to the position adjustment slide plate; The stretching positioning parts are provided with two, and the stretching positioning parts are slidably arranged on the adjustment slide plate. The stretching positioning parts correspond to the power stretching slide plate one by one, and are used to fix the metal plate.

[0009] Further on the basis of the above scheme, the stretching positioning part includes a U-shaped limit frame, a tension sensor, a positioning rod, a top anti-skid plate, a positioning cylinder and a bottom anti-skid plate; The U-shaped limiting frame is slidably arranged on the position adjusting slide plate; One end of the tension sensor is arranged on the U-shaped limit frame; The position adjustment rod is arranged on the tension sensor, and a rod groove matching the position adjustment rod is provided on one side of the power stretching slide plate; The top anti-slip plate is arranged in the U-shaped limiting frame; The positioning cylinder is installed on the U-shaped limiting frame; The bottom anti-skid plate is arranged on the output end of the positioning cylinder, and an anti-skid material clamping cavity is formed between the bottom anti-skid plate and the top anti-skid plate.

[0010] On the basis of the above scheme, the material loading assembly includes a material loading frame, a material loading lower pressing plate, a material conveying roller and a material conveying belt; The material carrier is arranged on the stamping bottom plate; There are two loading lower pressing plates, which are longitudinally slidably arranged on the loading rack, and a plurality of spring shock absorbers are arranged between the bottom of the loading lower pressing plate and the loading rack; There are two feeding rollers, and the feeding rollers are rotatably arranged between the two loading lower pressing plates; The conveyor belt transmission is arranged between the two conveyor rollers.

[0011] On the basis of the above scheme, the conveying power assembly includes a conveying motor, a universal telescopic coupling and a power pulley assembly; The conveying motor is mounted on the stamping bottom plate; The universal telescopic coupling is arranged at the output end of the conveying motor and one end of one of the feeding rollers; The power pulley group is arranged between two adjacent feed rollers in the two material carrying assemblies.

[0012] On the basis of the above scheme, the plate positioning assembly includes a positioning frame, a top limiting assembly and a side limiting assembly; The positioning frame is arranged on the stamping bottom plate; The top limit assembly is arranged on the positioning frame, and the top limit assembly is located above the conveyor belt; There are two side limit assemblies, which are symmetrically arranged on the positioning frame and are used to limit the metal plate on the conveyor belt.

[0013] Further on the basis of the above scheme, the top limit assembly includes a top limit cylinder and a top limit plate; The top limit cylinder is installed on the positioning frame; The top limit plate is arranged on the output end of the top limit cylinder, a bending positioning cavity is formed between the top limit plate and the positioning frame, and a stamping positioning cavity is formed between the top limit plate and the conveyor belt.

[0014] Further on the basis of the above scheme, the side limit assembly includes a side limit cylinder and a side limit block; The side limit cylinder is installed on one side of the positioning frame; The side limiting block is arranged on one side of the side limiting cylinder.

[0015] On the basis of the above scheme, the die bearing assembly comprises a bearing frame and a stamping die; The carrier is slidably arranged between the two material carriers, and a plurality of positioning bolts are threadedly connected between the carrier and the material carrier; The stamping die is detachably arranged on the supporting frame, and the stamping die is located below the stamping head.

[0016] The working principle and beneficial effects of the present invention are: 1. The present invention, before processing the metal sheet, slide the U-shaped limit frame on one side of the positioning slide plate to make the positioning rod correspond to the rod groove in the power stretching slide plate, then start the positioning cylinder, the output end of the positioning cylinder drives the positioning slide plate to move, and the stretching positioning part is driven to move by the movement of the positioning slide plate, so that the positioning rod in the stretching positioning part is inserted into the rod groove, and then start the stamping motor, so that the output end of the stamping motor drives the power reciprocating screw connected thereto to rotate, and the rotation of the power reciprocating screw drives the power disk to rotate, and at the same time, the power ball nut groups on the two power reciprocating screws move relative to or back to back, through The movement of the power ball nut group drives the power stretching slide to move, and the power stretching slide drives the adjustment rod to move, and the distance between the two stretching positioning parts is adjusted. When the tensile strength of the metal sheet is tested, the metal sheet is placed in the anti-skid clamping cavity by adjusting the distance between the two stretching positioning parts, and the positioning cylinder is started. The bottom anti-skid plate is driven to move through the output end of the positioning cylinder, so that the bottom anti-skid plate and the top anti-skid plate clamp the metal sheet, and then the metal sheet can be stretched by the back-to-back movement of the two stretching positioning parts. Under the numerical detection of the tension sensor, the tensile performance of the metal sheet can be tested; 2. The present invention, before processing the metal sheet, starts the adjustment cylinder to separate the adjustment rod from the rod groove, places the metal sheet above the two top limit plates, then starts the top limit cylinder, drives the top limit plate to move through the output end of the top limit cylinder, so that the top limit plate and the positioning frame clamp the metal sheet, then removes the punch head from the three-jaw chuck, and replaces the anti-bending detection head, then starts the punch motor to drive the power disk to rotate, the rotation of the power disk drives the eccentric shaft to move, the movement of the eccentric shaft drives the power slip ring to perform longitudinal linear reciprocating motion, the movement of the power slip ring drives the hexagonal power rod to move, the movement of the hexagonal power rod drives the stamping pressure sensor to move, the movement of the stamping pressure sensor drives the three-jaw chuck to move, and the movement of the three-jaw chuck drives the anti-bending detection head to move, so that the movement of the anti-bending detection head moves toward the metal sheet and squeezes the metal sheet, as the anti-bending detection head squeezes the metal sheet downward, the anti-bending performance of the metal sheet can be tested under the detection of the stamping pressure sensor; 3. In the present invention, after the bending and tensile properties of the metal sheet are tested, the position of the carrier on the carrier is adjusted by loosening and tightening the positioning bolts according to the tested properties of the metal sheet, thereby adjusting the distance between the stamping mold and the punch head. According to the thickness of the metal sheet, on the premise that the punch head can normally impact the metal sheet to prepare metal parts, the punch head moves with acceleration driven by the eccentric shaft. Therefore, the closer the stamping die is to the punch head, the lower the speed of the punch head during the stamping process, and the smaller the stamping pressure. On the contrary, the farther the stamping die is from the punch head, the greater the stamping speed and the higher the stamping pressure. 4. In the present invention, after the position adjustment of the stamping die is completed, when the metal sheet is stamped, the metal sheet is placed on the conveyor belt, and the conveying motor is started. The output end of the conveying motor drives the universal telescopic coupling to rotate. The rotation of the universal telescopic coupling drives the feed roller connected thereto to rotate. The feed belt is driven to rotate by the rotation of the feed roller, and the two feed belts can be driven synchronously, in the same direction, and at the same speed by the power drive group. When the feed belt drives the metal sheet to move, the side limit cylinder is started, and the output end of the side limit cylinder drives the side limit block to move. The movement of the side limit block drives the metal sheet to move, so that the position of the metal sheet on the feed belt can be adjusted, and the metal sheet can be stably conveyed. When the belt is conveying the metal sheet, under the support of the spring shock absorber, the upper surface of the conveyor belt is higher than the top of the stamping die and the carrier, and the metal sheet can pass through the carrier and the stamping die smoothly. After the position to be stamped on the metal sheet moves to the top of the stamping die, the top limit cylinder is started, and the output end of the top limit cylinder drives the top limit plate to move, and the metal sheet is contacted with the metal sheet through the movement of the positioning limit plate, and the metal sheet is pressed downward. Under the action of pressure, the spring shock absorber will be compressed downward until the bottom of the metal sheet contacts the carrier and the stamping die, and the position of the metal sheet is fixed. Then the stamping motor is started to make the stamping head move in the direction of the stamping die to stamp the metal sheet. After the cycle is repeated, the metal sheet can be stamped continuously. 5. The present invention can not only conduct tensile and bending strength tests on the metal sheet before stamping, thereby adjusting the stamping speed and pressure of the metal sheet during stamping, and preparing stamped metal parts with a higher yield, but also can stably transport and fix the metal sheet during the stamping process, effectively preventing the metal sheet from deflecting during the stamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle; Figure 4 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 6 It is a structural schematic diagram of a partial cross-section of a stamping power component in the present invention; Figure 7 It is a structural schematic diagram of the stretching and positioning assembly in the present invention; Figure 8 It is a schematic diagram of the structure of the coordination of the material loading assembly, the conveying power assembly, the plate positioning assembly and the mold bearing assembly in the present invention.

[0019] The numbers in the figure represent: 001, stamping power assembly; 002, stretching positioning assembly; 003, material loading assembly; 004, conveying power assembly; 005, plate positioning assembly; 006, mold bearing assembly; 1. Stamping base plate; 2. Stamping frame; 3. Stamping power box; 4. Power reciprocating screw; 5. Power ball nut group; 6. Power stretching slide plate; 7. Stamping motor; 8. Power disk; 9. Eccentric shaft; 10. Power slip ring; 11. Hexagonal power rod; 12. Stamping pressure sensor; 13. Three-jaw chuck; 14. Stamping head; 15. Adjustment cylinder; 16. Adjustment slide plate; 17. Adjustment limit rod; 18. U-shaped limit frame; 19. Tension sensor; 20. Adjustment rod ; 21. Top anti-skid plate; 22. Positioning cylinder; 23. Bottom anti-skid plate; 24. Loading frame; 25. Loading lower pressure plate; 26. Spring shock absorber; 27. Feed roller; 28. Feed belt; 29. ​​Conveying motor; 30. Universal telescopic coupling; 31. Power pulley set; 32. Positioning frame; 33. Top limit cylinder; 34. Top limit plate; 35. Side limit cylinder; 36. Side limit block; 37. Loading frame; 38. Positioning bolt; 39. Stamping die. DETAILED DESCRIPTION The following will be combined with 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.

[0020] like Figures 1 to 8 As shown, this embodiment proposes a punching machine for metal processing, including a stamping base plate 1, a stamping power component 001 with a stretching adjustment function, a stretching positioning component 002, a loading component 003 with a compression adjustment and conveying function, a conveying power component 004, a plate positioning component 005 and a mold supporting component 006 with a position adjustment function.

[0021] A stamping frame 2 is arranged on the stamping bottom plate 1 , and a stamping power box 3 is arranged on one side of the stamping frame 2 .

[0022] As mentioned above, the stamping power assembly 001 is arranged in the stamping power box 3, and the stamping power assembly 001 includes a power reciprocating screw 4, a power stretching slide 6, a stamping motor 7, a power disk 8, an eccentric shaft 9, a power slip ring 10, a hexagonal power rod 11, a stamping pressure sensor 12 and a three-jaw chuck 13. There are two power reciprocating screws 4, and the two power reciprocating screws 4 are both rotatably arranged in the stamping power box 3. Each power reciprocating screw 4 is threadedly connected with a power ball nut group 5. There are two power stretching slides 6, which penetrate and slide on the stamping power box 3. The power stretching slide 6 corresponds to the power ball nut group 5 one by one, and the power stretching slide 6 is connected to the power ball nut group 5. The stamping motor 7 is installed on On one side of the stamping power box 3, the output end of the stamping motor 7 is connected to one end of one of the power reciprocating screws 4, and two power disks 8 are provided. The power disks 8 correspond to the power reciprocating screws 4 one by one. The power disks 8 are arranged on the power reciprocating screws 4, and the eccentric shaft 9 is rotatably arranged between the two power disks 8. The eccentric shaft 9 is located at the eccentric position of the power disk 8. The power slip ring 10 is sleeved on the eccentric shaft 9, and the hexagonal power rod 11 is penetrated and slidably arranged on the stamping power box 3. One end of the hexagonal power rod 11 is connected to one end of the power slip ring 10, and the stamping pressure sensor 12 is arranged at the other end of the hexagonal power rod 11. The three-jaw chuck 13 is arranged on the detection end of the stamping pressure sensor 12, and the three-jaw chuck 13 is detachably provided with a stamping head 14.

[0023] Specifically, the stamping motor 7 is started so that the output end of the stamping motor 7 drives the power reciprocating screw 4 connected thereto to rotate. The rotation of the power reciprocating screw 4 drives the power disk 8 to rotate, while the power ball nut groups 5 on the two power reciprocating screws 4 move relative to or back to back. The movement of the power ball nut group 5 drives the power stretching slide 6 to move. When the power disk 8 moves, the rotation of the power disk 8 drives the eccentric shaft 9 to move. The movement of the eccentric shaft 9 drives the power slip ring 10 to perform longitudinal linear reciprocating motion. The movement of the power slip ring 10 drives the hexagonal power rod 11 to move. The movement of the hexagonal power rod 11 drives the stamping pressure sensor 12 to move. The movement of the stamping pressure sensor 12 drives the three-jaw chuck 13 to move. The movement of the three-jaw chuck 13 drives the punching head 14 to move, and the metal sheet can be stamped.

[0024] As mentioned above, the stretching positioning component 002 is arranged on one side of the stamping frame 2, and the stretching positioning component 002 is meshed with the stamping power component 001. The stretching positioning component 002 includes a positioning cylinder 15, a positioning slide 16, a positioning limit rod 17 and a stretching positioning part. The positioning cylinder 15 is installed on one side of the stamping frame 2, and the positioning slide 16 is arranged on the output end of the positioning cylinder 15. There are multiple positioning limit rods 17, and the positioning limit rods 17 pass through and are slidably arranged on the stamping frame 2. One end of the positioning limit rod 17 is connected to the positioning slide 16. There are two stretching positioning parts, and the stretching positioning part is slidably arranged on the positioning slide 16. The stretching positioning part corresponds one by one to the power stretching slide 6 and is used to fix the metal sheet.

[0025] Among them, the stretching positioning part includes a U-shaped limit frame 18, a tension sensor 19, an adjustment rod 20, a top anti-skid plate 21, a positioning cylinder 22 and a bottom anti-skid plate 23. The U-shaped limit frame 18 is slidably set on the adjustment slide 16, one end of the tension sensor 19 is set on the U-shaped limit frame 18, the adjustment rod 20 is set on the tension sensor 19, and one side of the power stretching slide 6 is provided with a rod groove matched with the adjustment rod 20. The top anti-skid plate 21 is set in the U-shaped limit frame 18, the positioning cylinder 22 is installed on the U-shaped limit frame 18, and the bottom anti-skid plate 23 is set on the output end of the positioning cylinder 22. A non-slip material clamping cavity is formed between the bottom anti-skid plate 23 and the top anti-skid plate 21.

[0026] Specifically, before processing the metal sheet, the U-shaped limit frame 18 on one side of the sliding adjustment slide 16 is used to make the adjustment rod 20 correspond to the rod groove in the power stretching slide 6, and then the adjustment cylinder 15 is started. The output end of the adjustment cylinder 15 drives the adjustment slide 16 to move, and the stretching positioning part is driven to move by the movement of the adjustment slide 16, so that the adjustment rod 20 in the stretching positioning part is inserted into the rod groove, and then the stamping motor 7 is started to adjust the distance between the two stretching positioning parts. When the tensile strength of the metal sheet is tested, the metal sheet is placed in the anti-slip clamping cavity by adjusting the distance between the two stretching positioning parts, and the positioning cylinder 22 is started. The bottom anti-slip plate 23 is driven to move by the output end of the positioning cylinder 22, so that the bottom anti-slip plate 23 and the top anti-slip plate 21 clamp the metal sheet, and then the metal sheet can be stretched by the back-to-back movement of the two stretching positioning parts. Under the numerical detection of the tension sensor 19, the tensile performance of the metal sheet can be tested.

[0027] As mentioned above, there are two loading assemblies 003, and the two loading assemblies 003 are symmetrically arranged on the stamping base plate 1. The loading assembly 003 includes a loading frame 24, a loading lower pressure plate 25, a feed roller 27 and a feed belt 28. The loading frame 24 is arranged on the stamping base plate 1, and there are two loading lower pressure plates 25. The loading lower pressure plates 25 are longitudinally slidably arranged on the loading frame 24. A plurality of spring shock absorbers 26 are arranged between the bottom of the loading lower pressure plate 25 and the loading frame 24. There are two feed rollers 27, and the feed roller 27 is rotatably arranged between the two loading lower pressure plates 25. The feed belt 28 is transmission-arranged between the two feed rollers 27. The position of the loading lower pressure plate 25 on the loading frame 24 can be adjusted by the extension and retraction of the spring shock absorber 26.

[0028] As mentioned above, the conveying power component 004 is arranged on the stamping base plate 1, and the conveying power component 004 is connected to the two loading components 003, and is used to drive the loading components 003 to move. The conveying power component 004 includes a conveying motor 29, a universal telescopic coupling 30 and a power pulley group 31. The conveying motor 29 is installed on the stamping base plate 1, and the universal telescopic coupling 30 is arranged at the output end of the conveying motor 29 and one end of one of the feed rollers 27. The power pulley group 31 is transmission-arranged between two adjacent feed rollers 27 in the two loading components 003.

[0029] Specifically, the conveying motor 29 is started, and the output end of the conveying motor 29 drives the universal telescopic coupling 30 to rotate. The rotation of the universal telescopic coupling 30 drives the feed roller 27 connected thereto to rotate. The feed roller 27 drives the feed belt 28 to rotate through the rotation. Under the transmission of the power drive group, the two feed belts 28 can move synchronously, in the same direction, and at the same speed. When the feed belt 28 drives the metal sheet to move.

[0030] As mentioned above, there are two groups of plate positioning components 005, and the plate positioning components 005 are arranged on the stamping base plate 1. The plate positioning components 005 correspond one to one with the loading components 003. The plate positioning components 005 include a positioning frame 32, a top limit component and a side limit component. The positioning frame 32 is arranged on the stamping base plate 1, and the top limit component is arranged on the positioning frame 32. The top limit component is located above the conveyor belt 28. There are two side limit components, and the two side limit components are symmetrically arranged on the positioning frame 32, which are used to limit the metal plate on the conveyor belt 28.

[0031] Among them, the top limit assembly includes a top limit cylinder 33 and a top limit plate 34. The top limit cylinder 33 is installed on the positioning frame 32. The top limit plate 34 is arranged on the output end of the top limit cylinder 33. A bending positioning cavity is formed between the top limit plate 34 and the positioning frame 32. A stamping positioning cavity is formed between the top limit plate 34 and the conveyor belt 28.

[0032] The side limiting assembly includes a side limiting cylinder 35 and a side limiting block 36 . The side limiting cylinder 35 is installed on one side of the positioning frame 32 , and the side limiting block 36 is arranged on one side of the side limiting cylinder 35 .

[0033] Specifically, before processing the metal sheet, the positioning cylinder 15 is started to separate the positioning rod 20 from the rod groove, and the metal sheet is placed above the two top limit plates 34. Then, the top limit cylinder 33 is started, and the top limit plate 34 is driven to move by the output end of the top limit cylinder 33, so that the top limit plate 34 and the positioning frame 32 clamp the metal sheet. Then, the punching head 14 is removed from the three-jaw chuck 13, and the anti-bending detection head is replaced. Then, the punching motor 7 is started, and the movement of the three-jaw chuck 13 drives the anti-bending detection head to move, so that the anti-bending detection head moves toward the metal sheet and squeezes the metal sheet. As the anti-bending detection head squeezes the metal sheet downward, the anti-bending performance of the metal sheet can be tested under the detection of the stamping pressure sensor 12.

[0034] When the conveyor belt 28 drives the metal sheet to move, the side limit cylinder 35 is started, and the output end of the side limit cylinder 35 drives the side limit block 36 to move. The movement of the side limit block 36 drives the metal sheet to move, so that the position of the metal sheet on the conveyor belt 28 can be adjusted, and the metal sheet can be stably conveyed. When the metal sheet is conveyed by the conveyor belt 28, under the support of the spring shock absorber 26, the upper surface of the conveyor belt 28 is higher than the top of the stamping die 39 and the carrier frame 37, and the metal sheet can pass through the carrier frame 37 and the stamping die 39 smoothly. After the pressing position moves to the top of the stamping die 39, the top limit cylinder 33 is started, and the output end of the top limit cylinder 33 drives the top limit plate 34 to move, and the movement of the positioning limit plate contacts the metal sheet and presses the metal sheet downward. Under the action of pressure, the spring shock absorber 26 will be compressed downward until the bottom of the metal sheet contacts the support frame 37 and the stamping die 39, and the position of the metal sheet is fixed. Then the stamping motor 7 is started to make the stamping head 14 move toward the direction of the stamping die 39 to stamp the metal sheet. The cycle is repeated in sequence to continuously stamp the metal sheet.

[0035] As mentioned above, the mold supporting assembly 006 is detachably arranged between the two loading assemblies 003. The mold supporting assembly 006 includes a supporting frame 37 and a stamping die 39. The supporting frame 37 is slidably arranged between the two loading frames 24, and a plurality of positioning bolts 38 are threadedly connected between the supporting frame 37 and the loading frames 24. The stamping die 39 is detachably arranged on the supporting frame 37, and the stamping die 39 is located below the stamping head 14.

[0036] Specifically, after the bending and tensile properties of the metal sheet are tested, the position of the carrier frame 37 on the carrier frame 24 is adjusted by loosening and tightening the positioning bolts 38 according to the measured properties of the metal sheet, so as to adjust the distance between the stamping mold and the punch head 14. According to the thickness of the metal sheet, on the premise that the punch head 14 can normally impact the metal sheet to prepare metal parts, since the punch head 14 moves with acceleration under the drive of the eccentric shaft 9, the closer the stamping die 39 is to the stamping head 14, the lower the speed of the stamping head 14 during the stamping process, and the smaller the stamping pressure. Conversely, the farther the stamping die 39 is from the stamping head 14, the greater the stamping speed and the higher the stamping pressure.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal processing punch, characterized in that: include: A stamping base plate (1), wherein a stamping frame (2) is arranged on the stamping base plate (1), and a stamping power box (3) is arranged on one side of the stamping frame (2); A stamping power assembly (001) having a stretching and positioning function, wherein the stamping power assembly (001) is arranged in the stamping power box (3); A stretching positioning component (002), the stretching positioning component (002) being arranged on one side of the punching frame (2), the stretching positioning component (002) being meshed with the punching power component (001); A material carrying assembly (003) having compression, positioning and conveying functions, wherein two material carrying assemblies (003) are provided, and the two material carrying assemblies (003) are symmetrically arranged on the stamping bottom plate (1); A conveying power assembly (004), the conveying power assembly (004) being arranged on the stamping bottom plate (1), the conveying power assembly (004) being connected to the two material carrying assemblies (003) and being used to drive the material carrying assemblies (003) to move; A plate positioning assembly (005), wherein two groups of the plate positioning assembly (005) are provided, and the plate positioning assembly (005) is arranged on the stamping bottom plate (1), and the plate positioning assembly (005) corresponds one to one with the material loading assembly (003); A mould bearing assembly (006) having a position adjustment function, wherein the mould bearing assembly (006) is detachably arranged between the two material carrying assemblies (003).

2. A metal processing punch press according to claim 1, characterized in that: The stamping power assembly (001) comprises: A power reciprocating screw rod (4), wherein two power reciprocating screw rods (4) are provided, and both of the two power reciprocating screw rods (4) are rotatably arranged in the stamping power box (3), and each of the power reciprocating screw rods (4) is threadedly connected to a power ball nut assembly (5); A power stretching slide plate (6), wherein two power stretching slide plates (6) are provided, the power stretching slide plates (6) penetrate through and are slidably arranged on the stamping power box (3), the power stretching slide plates (6) correspond one to one with the power ball nut group (5), and the power stretching slide plates (6) are connected to the power ball nut group (5); A stamping motor (7), the stamping motor (7) being mounted on one side of the stamping power box (3), the output end of the stamping motor (7) being connected to one end of one of the power reciprocating screw rods (4); A power disk (8), wherein two power disks (8) are provided, the power disks (8) correspond one to one with the power reciprocating screw rod (4), and the power disks (8) are arranged on the power reciprocating screw rod (4); An eccentric shaft (9), the eccentric shaft (9) being rotatably disposed between the two power disks (8), the eccentric shaft (9) being located at an eccentric position of the power disks (8); A power slip ring (10), wherein the power slip ring (10) is sleeved on the eccentric shaft (9); A hexagonal power rod (11), the hexagonal power rod (11) passing through and slidably disposed on the stamping power box (3), one end of the hexagonal power rod (11) being connected to one end of the power slip ring (10); A stamping pressure sensor (12), the stamping pressure sensor (12) being arranged at the other end of the hexagonal power rod (11); A three-jaw chuck (13) is provided on the detection end of the punching pressure sensor (12), and a punching head (14) is detachably provided in the three-jaw chuck (13).

3. A metal processing punch press according to claim 2, characterized in that: The stretching positioning component (002) comprises: A positioning cylinder (15), the positioning cylinder (15) being installed on one side of the punching frame (2); A positioning slide (16), wherein the positioning slide (16) is arranged on an output end of the positioning cylinder (15); a position adjustment and limiting rod (17), wherein a plurality of the position adjustment and limiting rods (17) are provided, the position adjustment and limiting rods (17) penetrate through and are slidably arranged on the punching frame (2), and one end of the position adjustment and limiting rod (17) is connected to the position adjustment slide plate (16); A stretching positioning part, wherein two stretching positioning parts are provided, and the stretching positioning parts are slidably arranged on the positioning slide plate (16), and the stretching positioning parts correspond one to one with the power stretching slide plate (6), and are used to fix the metal plate.

4. A metal processing punch press according to claim 3, characterized in that: The stretching positioning portion comprises: A U-shaped limiting frame (18), wherein the U-shaped limiting frame (18) is slidably arranged on the positioning slide plate (16); A tension sensor (19), one end of the tension sensor (19) being arranged on the U-shaped limiting frame (18); a positioning rod (20), the positioning rod (20) being arranged on the tension sensor (19), and a rod groove matching the positioning rod (20) being provided on one side of the power stretching slide plate (6); A top anti-skid plate (21), wherein the top anti-skid plate (21) is arranged in the U-shaped limiting frame (18); A positioning cylinder (22), wherein the positioning cylinder (22) is mounted on the U-shaped limiting frame (18); A bottom anti-slip plate (23) is arranged on the output end of the positioning cylinder (22), and an anti-slip material clamping cavity is formed between the bottom anti-slip plate (23) and the top anti-slip plate (21).

5. A metal processing punch press according to claim 4, characterized in that: The material loading assembly (003) comprises: A material carrier (24), the material carrier (24) being arranged on the stamping bottom plate (1); A material loading lower pressing plate (25), wherein two material loading lower pressing plates (25) are provided, and the material loading lower pressing plates (25) are longitudinally slidably arranged on the material loading rack (24), and a plurality of spring shock absorbers (26) are arranged between the bottom of the material loading lower pressing plate (25) and the material loading rack (24); A material conveying roller (27), wherein two material conveying rollers (27) are provided, and the material conveying rollers (27) are rotatably arranged between the two material-carrying lower pressure plates (25); A conveyor belt (28), wherein the conveyor belt (28) is arranged between the two conveyor rollers (27).

6. A metal processing punch press according to claim 5, characterized in that: The delivery power assembly (004) comprises: A conveying motor (29), wherein the conveying motor (29) is mounted on the stamping base plate (1); A universal telescopic coupling (30), the universal telescopic coupling (30) being arranged between the output end of the conveying motor (29) and one end of one of the conveying rollers (27); A power pulley assembly (31), wherein the power pulley assembly (31) is transmission-arranged between two adjacent feed rollers (27) in the two material carrying assemblies (003).

7. A metal processing punch press according to claim 6, characterized in that: The plate positioning assembly (005) comprises: A positioning frame (32), the positioning frame (32) being arranged on the stamping bottom plate (1); A top limit assembly, the top limit assembly being arranged on the positioning frame (32), the top limit assembly being located above the conveyor belt (28); A side limit assembly, wherein two side limit assemblies are provided, and the two side limit assemblies are symmetrically arranged on the positioning frame (32) and are used to limit the metal plate on the conveyor belt (28).

8. A metal processing punch press according to claim 7, characterized in that: The top limit assembly comprises: A top limiting cylinder (33), wherein the top limiting cylinder (33) is mounted on the positioning frame (32); A top limit plate (34), the top limit plate (34) being arranged on the output end of the top limit cylinder (33), a bent positioning cavity being formed between the top limit plate (34) and the positioning frame (32), and a molded and stamped positioning cavity being formed between the top limit plate (34) and the conveyor belt (28).

9. A metal processing punch press according to claim 8, characterized in that: The side limit assembly comprises: A side limit cylinder (35), wherein the side limit cylinder (35) is installed on one side of the positioning frame (32); A side limit block (36), wherein the side limit block (36) is arranged on one side of the side limit cylinder (35).

10. A metal processing punch press according to claim 9, characterized in that: The mold bearing assembly (006) comprises: A carrier frame (37), the carrier frame (37) being slidably disposed between the two material carrier frames (24), and a plurality of positioning bolts (38) being threadedly connected between the carrier frame (37) and the material carrier frames (24); A stamping die (39), wherein the stamping die (39) is detachably arranged on the carrier (37), and the stamping die (39) is located below the stamping head (14).

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