Stamping die for automobile part machining and stamping forming method

Abstract

The invention discloses a stamping die for automobile part machining and a stamping forming method, and relates to the field of automobile part machining, the stamping die comprises a workbench, stamping equipment is installed at the top of the workbench, and a lower die is installed at the position, below the stamping equipment, of the top of the workbench; the fourth fixing sleeve is slidably connected to the interior of the lower mold, a second fixing sleeve is fixedly connected to the inner side of the lower mold, a third fixing sleeve is fixedly connected to the top of the second fixing sleeve, and a movable sleeve is fixedly connected to the inner side of the third fixing sleeve; the top of the movable sleeve is fixedly connected with a suction cup. By arranging the calibration mechanism, the position of the plate is adjusted by moving the four push plates towards the direction of the plate, so that the plate can be calibrated to the center position of the lower die before being stamped, manual calibration operation by workers is not needed, and the stamping efficiency of the plate is improved.

Description

Technical Field

[0001] The invention relates to the field of automobile parts processing, in particular to a stamping die and a stamping forming method for automobile parts processing. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. There are many kinds of auto parts. With the improvement of people's living standards, people's consumption of cars is increasing, and the market for auto parts is becoming larger and larger. In the process of processing auto parts, metal sheets need to be stamped into shape, which often requires the use of special stamping dies.

[0003] In the process of stamping the plate, the existing lower die needs the staff to manually load the material and calibrate its position, and then perform the stamping operation through the punch head. After the stamping is completed, the staff needs to manually unload the stamped workpiece, which reduces the efficiency of stamping. For this reason, we provide a stamping die and stamping forming method for automobile parts processing to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a stamping die and a stamping forming method for processing automobile parts in order to solve the problem that the sheet materials used for processing automobile parts need to be manually calibrated and unloaded, thereby reducing the stamping efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stamping die for processing automobile parts, comprising: a workbench, a stamping device is installed on the top of the workbench, and a lower die is installed on the top of the workbench below the stamping device; a fourth fixed sleeve, the fourth fixed sleeve is slidably connected to the inside of the lower die, the inner side of the lower die is fixedly connected to a second fixed sleeve, the top of the second fixed sleeve is fixedly connected to a third fixed sleeve, the inner side of the third fixed sleeve is fixedly connected to a movable sleeve, the top of the movable sleeve is fixedly connected to a suction cup, and the suction cup is fixedly connected to the The inner side of the fourth fixed sleeve and the inner side of the workbench are slidably connected with a sliding rod, the inner side of the workbench is provided with a rebound groove matching the sliding rod, a second spring is installed between the sliding rod and the second fixed sleeve, and the sliding rod is fixedly connected to the movable sleeve through a third connecting rod; a calibration mechanism is located below the workbench, and is used to calibrate the plate on the top of the lower mold; an auxiliary stamping part is located at the top of the lower mold, and is used to assist the stamping equipment in stamping automobile plates; an adsorption fixture is located inside the lower mold, and is used to adsorb the stamped plate on the top of the lower mold.

[0006] As a further solution of the present invention: the calibration mechanism includes four first sliding grooves opened on the top of the workbench, each of the first sliding grooves is slidably connected to a first slider, the top of the first slider is fixedly connected to a rectangular plate, the top of the rectangular plate is fixedly connected to a push plate, the side wall of the first slider is fixedly connected to a first spring, one end of the first spring is fixedly connected to a fixed plate, and the fixed plate is fixedly connected to the top of the workbench, and the bottom of the first slider is provided with a pushing component for pushing the first slider.

[0007] As a further scheme of the present invention: the pushing component includes a first fixed sleeve fixedly connected to the bottom of the workbench, the inner side of the first fixed sleeve is slidably connected with a first spur rack, and the first spur rack is fixedly connected to the bottom of the sliding rod, the inner side of the first fixed sleeve is rotatably connected with a first spur gear meshing with the first spur rack, the inner side of the first fixed sleeve is provided with a second sliding groove matching the first spur rack, the outer wall of the first fixed sleeve is slidably connected with a circular slider, the inner side of the circular slider is fixedly connected with a second spur rack meshing with the first spur gear, a third spring is installed between the circular slider and the first fixed sleeve, and four first connecting rods are fixedly connected to the outer wall of the circular slider at equal distances, each of the first connecting rods is rotatably connected to a second connecting rod on the top, and one end of the second connecting rod is rotatably connected to the first slider.

[0008] As a further solution of the present invention: the auxiliary stamping part includes four groups of first fixed seats fixedly connected to the inner side of the lower mold, an auxiliary plate is arranged on the inner side of each group of the first fixed seats, a first shaft rod is fixedly connected to both sides of each of the auxiliary plates, one end of each of the first shaft rods passes through the outside of the first fixed seat and is rotatably connected to the first fixed seat, one end of each of the first shaft rods is fixedly connected to a bevel gear, and the bevel gears close to each other are meshed in pairs.

[0009] As a further solution of the present invention: the auxiliary stamping part also includes a third spur rack slidably connected to the inner side of the lower mold, one end of the third spur rack is rotatably connected to a power wheel, the inner side of the lower mold is rotatably connected to a second spur gear, and one end of the fourth fixed sleeve is fixedly connected to a fourth spur rack meshing with the second spur gear.

[0010] As a further solution of the present invention: the adsorption fixer includes a first piston plate slidably connected to the movable sleeve and the inner side of the suction cup, a sliding sleeve is fixedly connected to the inner side of the third fixed sleeve, and one end of the sliding sleeve passes through the outside of the third fixed sleeve, an electromagnetic valve is installed at the air inlet of the sliding sleeve, one end of the electromagnetic valve is fixedly connected to a connecting pipe, and one end of the connecting pipe is connected to the exhaust port of the movable sleeve, a second piston plate is installed inside the sliding sleeve, a rectangular rod is fixedly connected to one side of the second piston plate, and one end of the rectangular rod passes through the outside of the sliding sleeve and is slidably connected to the sliding sleeve, a fourth spring is installed between the second piston plate and the sliding sleeve, and an auxiliary unloading assembly is provided on the top of the fourth fixed sleeve.

[0011] As a further solution of the present invention: the adsorption fixer also includes an abutment plate fixedly connected to one end of the rectangular rod, an inner side of the abutment plate is provided with an oblique groove, one side of the fourth spur rack is fixedly connected to a fourth connecting rod, one end of the fourth connecting rod is provided with an arc surface, and the arc surface is located above the oblique groove.

[0012] As a further scheme of the present invention: the auxiliary unloading assembly includes a sixth connecting rod rotatably connected to the inner side of the fourth fixed sleeve, one end of the sixth connecting rod is fixedly connected to the second shaft rod, a first torsion spring is installed between the second shaft rod and the fourth fixed sleeve, the two second shaft rods are fixedly connected by a fifth connecting rod, one side of the two second shaft rods is fixedly connected to an elastic plate, the top of the first piston plate is fixedly connected to a straight plate, the inner side of the straight plate is fixedly connected to a plurality of second fixed seats with equal distances, a rotating tooth is provided on the inner side of each second fixed seat, a fixed block is provided at the bottom of each rotating tooth, each fixed block is fixedly connected to the straight plate, one side of the rotating tooth is fixedly connected to a third shaft rod, one end of the third shaft rod passes through the outside of the second fixed seat and is rotatably connected to the second fixed seat, one end of the third shaft rod is fixedly connected to a fixed circular plate, and a second torsion spring is installed between the fixed circular plate and the second fixed seat.

[0013] As a further solution of the present invention: as described.

[0014] The present invention also discloses a stamping forming method for processing automobile parts, which adopts the above-mentioned stamping die for processing automobile parts, and comprises the following steps:

[0015] S1. The stamping equipment is composed of a bracket, a hydraulic rod, a stamping head and other components. The staff places the automobile stamping sheet on the lower die, and then starts the stamping equipment to stamp the sheet. When the stamping equipment squeezes the fourth fixed sleeve, the fourth fixed sleeve moves downward and drives the sliding rod to move downward through the movable sleeve. When the first spur rack is meshed with the first spur gear, the first spur rack continues to move downward to drive the first spur gear to rotate, and then drives the second spur rack to drive the circular slider to move upward, so that the four second connecting rods respectively push one of the first spur racks to drive one of the second slide grooves to move toward the sheet, and then the four push plates are moved toward the sheet to adjust its position, so that the sheet can be calibrated to the center position of the lower die before stamping, without the need for the staff to perform manual calibration operations, thereby improving the stamping efficiency of the sheet;

[0016] When the top of the fourth fixed sleeve is flush with the top of the lower mold, the latching teeth on the outer wall of the first spur rack are separated from the first spur gear, so that the fixed plate is no longer subjected to external force and is reset under the action of the first spring, thereby not affecting the stamping of the plate;

[0017] S2. When the top of the fourth fixed sleeve is flush with the top of the lower die, the power wheel fits against the back of the auxiliary plate. When the plate is punched inward by the stamping equipment to squeeze the fourth fixed sleeve, the fourth fixed sleeve drives the fourth spur rack to move downward, and the fourth spur rack drives the second spur gear to rotate, thereby driving the third spur rack to drive the power wheel to move upward, pushing one of the auxiliary plates to rotate along with the stamping and bending angle of the plate at the top of the lower die. The rotation of one of the auxiliary plates drives the two bevel gears to rotate synchronously at the same time. The bevel gears close to each other are meshed, thereby driving the auxiliary plates close to each other to rotate toward the inside of the lower mold, so that the four auxiliary plates are synchronously rotated with the stamping angle of the plate. When the auxiliary plate rotates ninety degrees, the power wheel is attached to the back of the auxiliary plate. Through the cooperation of the above multiple parts, the four auxiliary plates are rotated with the stamping angle of the plate, so that the four auxiliary plates are always attached to the outer wall during the stamping process of the plate, so as to support the stamping of the plate, thereby ensuring that the plate will not shake during the stamping process, thereby improving the stamping accuracy;

[0018] S3. A sealing component for sealing is provided between the second shaft and the suction cup. The sealing component can be a sealing rubber or other parts with sealing effect. When the top of the fourth fixed sleeve is flush with the top of the lower mold, the solenoid valve is in an open state. When the plate is placed on the lower mold, it will be squeezed on the top of the suction cup. When the plate is being stamped, the fourth fixed sleeve moves downward and drives the fourth connecting rod to move toward the inner bottom of the lower mold through the fourth spur rack. When the bottom arc surface of the fourth connecting rod contacts the inner oblique groove of the abutment plate, the fourth connecting rod continues to move downward, pushing the abutment plate to drive the rectangular rod to move away from the third fixed sleeve, so that the inside of the movable sleeve is sucked through the second piston plate, so that negative pressure is formed between the plate and the suction cup, thereby fixing the center position of the stamped plate, ensuring that the plate is always flat during the entire stamping process, thereby improving the accuracy of subsequent stamping. When the fourth connecting rod passes through the inner oblique groove of the abutment plate, the solenoid valve is closed, so that the equipment does not affect the subsequent stamping effect;

[0019] S4, the straight plate is initially located above the fourth fixed sleeve. When the sheet to be stamped is placed on the top of the fourth fixed sleeve, the straight plate will be squeezed, thereby pushing the straight plate to move downward, so that the inner inclined surface of the rotating latch tooth contacts the third spur gear, and the rotating latch tooth is pushed to rotate toward the inside of the straight plate under the resistance of the third spur gear. When the rotating latch tooth is separated from the third spur gear, the rotating latch tooth is reset under the action of the second torsion spring. When the sheet is stamped, the stamping equipment returns to its original position. At this time, the second spring drives the sliding rod to move toward the top of the lower mold. When the fourth fixed sleeve is reset to its initial position, the stamped sheet is ejected from the lower mold and is located above the lower mold. When the fourth fixed sleeve is reset to its initial position When the piston is in the starting position, the solenoid valve is opened, and the gas inside the sliding sleeve pushes the first piston plate to move upward under the action of the fourth spring, so that the straight plate can lift the stamped workpiece on the top of the fourth fixed sleeve. Since the sealing part on the top of the suction cup is composed of elastic rubber, the suction cup has not been separated from the stamped workpiece under the action of the top elastic rubber during the process of gradually lifting the stamped workpiece by the straight plate, so that the top plane of the rotating latch tooth of the straight plate contacts with the third spur gear during the resetting process, and the third spur gear is driven to rotate the elastic plate through the fourth connecting rod, so that the elastic plate can be tilted to form a side push on the stamped workpiece, so as to facilitate the automatic discharge of the stamped workpiece, thereby improving the efficiency of subsequent stamping.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting a calibration mechanism, when the stamping equipment extrude the fourth fixed sleeve, the fourth fixed sleeve moves downward and drives the sliding rod to move downward through the movable sleeve. When the first spur rack is meshed with the first spur gear, the first spur rack continues to move downward to drive the first spur gear to rotate, and then drives the second spur rack to drive the circular slider to move upward, so that the four second connecting rods respectively push a first spur rack to drive a second slide groove to move toward the plate, and then move the four push plates toward the plate to adjust its position, so that the plate can be calibrated to the center position of the lower mold before stamping, without the need for manual calibration by the staff, thereby improving the stamping efficiency of the plate;

[0022] 2. By setting the auxiliary stamping parts, when the top of the fourth fixed sleeve is flush with the top of the lower mold, the power wheel is attached to the back of the auxiliary plate. When the plate is pressed inward by the stamping equipment to squeeze the fourth fixed sleeve, the fourth fixed sleeve drives the fourth spur rack to move downward, and the fourth spur rack drives the second spur gear to rotate, thereby driving the third spur rack to drive the power wheel to move upward, pushing an auxiliary plate to rotate along with the stamping and bending angle of the plate at the top of the lower mold. The rotation of an auxiliary plate drives the two bevel gears to rotate synchronously at the same time. Since the bevel gears close to each other are meshed, the auxiliary plates close to each other are driven to rotate toward the inner side of the lower mold, so that the four auxiliary plates rotate synchronously along with the stamping angle of the plate. When the auxiliary plate rotates ninety degrees, the power wheel is attached to the back of the auxiliary plate. Through the cooperation of the above multiple parts, the four auxiliary plates are realized to rotate along with the stamping angle of the plate, so that the four auxiliary plates are always attached to their outer walls during the stamping process of the plate, thereby supporting the stamping of the plate, thereby ensuring that the plate will not shake during the stamping process, thereby improving the stamping accuracy;

[0023] 3. By setting an adsorption fixture, a sealing component for sealing is provided between the second shaft rod and the suction cup. The sealing component can be a sealing rubber or other parts with sealing effect. When the top of the fourth fixed sleeve is flush with the top of the lower mold, the solenoid valve is in an open state. When the plate is placed on the lower mold, it will be squeezed on the top of the suction cup. When the plate is stamped, the fourth fixed sleeve moves downward and drives the fourth connecting rod to move to the inner bottom of the lower mold through the fourth straight rack. At the same time, when the arc surface at the bottom of the fourth connecting rod contacts the inner oblique groove of the abutment plate, the fourth connecting rod continues to move downward, pushing the abutment plate to drive the rectangular rod to move away from the third fixed sleeve, thereby sucking the inside of the movable sleeve through the second piston plate, so that negative pressure is formed between the plate and the suction cup, thereby fixing the center position of the stamped plate, ensuring that the plate is always flat during the entire stamping process, thereby improving the accuracy of subsequent stamping, and when the fourth connecting rod passes through the inner oblique groove of the abutment plate, the solenoid valve is closed, so that the equipment does not affect the subsequent stamping effect;

[0024] 4. By setting an auxiliary unloading component, the stamping equipment returns to its original position. At this time, the second spring drives the sliding rod to move to the top of the lower mold. When the fourth fixed sleeve is reset to the initial position, the stamped sheet is ejected from the lower mold and is located above the lower mold. When the fourth fixed sleeve is reset to the initial position, the solenoid valve is opened, and the gas inside the sliding sleeve pushes the first piston plate to move upward under the action of the fourth spring, so that the straight plate can lift the stamped workpiece on the top of the fourth fixed sleeve. Since the top of the suction cup is used for sealing and is composed of elastic rubber, the suction cup has not been separated from the stamped workpiece under the action of the top elastic rubber during the process of gradually lifting the stamped workpiece by the straight plate, so that the straight plate rotates the top plane of the card tooth to contact the third spur gear during the resetting process, and the third spur gear is driven to rotate the elastic plate through the fourth connecting rod, so that the elastic plate can be tilted, so as to form a side push on the stamped workpiece, so as to facilitate the automatic discharge of the stamped workpiece, thereby improving the efficiency of subsequent stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 is a cross-sectional view of a workbench of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 is a cross-sectional view of the lower mold of the present invention;

[0029] Figure 5 A cross-sectional view of a circular slider of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the first fixed sleeve of the present invention;

[0031] Figure 7 It is a schematic diagram of the calibration mechanism structure of the present invention;

[0032] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0033] Fig. 9 It is a schematic diagram of the inner structure of the lower mold of the present invention;

[0034] Fig.10 For the present invention Fig. 9 Enlarged view of point C in the middle;

[0035] Fig.11 For the present invention Fig.10 Enlarged view of point D in the middle;

[0036] Fig.12 It is a schematic diagram of the rotating latch structure of the present invention;

[0037] Fig.13 It is a schematic diagram of the local structure of the adsorption fixer of the present invention.

[0038] In the figure: 1, workbench; 2, stamping equipment; 3, lower die; 4, first slide; 5, rectangular plate; 6, fixed plate; 7, first spring; 8, push plate; 9, first connecting rod; 10, second connecting rod; 11, first slider; 12, third connecting rod; 13, sliding rod; 14, second spring; 15, second slide; 16, first spur gear; 17, first spur rack; 18, circular slider; 19, rebound groove; 20, first fixed sleeve; 21, third spring; 22, second spur rack; 23, auxiliary plate; 24, first fixed seat; 25, first shaft rod; 26, bevel gear; 27, abutment plate; 28, fourth connecting rod; 29, third spur rack; 30, The second spur gear; 31. The fourth spur rack; 32. The second fixed sleeve; 33. The third fixed sleeve; 34. The movable sleeve; 35. The first piston plate; 36. The straight plate; 37. The rotating latch; 38. The fifth connecting rod; 39. The third spur gear; 40. The fourth fixed sleeve; 41. The suction cup; 42. The second shaft rod; 43. The sixth connecting rod; 44. The first torsion spring; 45. The fixed block; 46. The second fixed seat; 47. The third shaft rod; 48. The fixed circular plate; 49. The second torsion spring; 50. The rectangular rod; 51. The second piston plate; 52. The elastic plate; 53. The fourth spring; 54. The solenoid valve; 55. The sliding sleeve; 56. The connecting pipe; 57. The power wheel. DETAILED DESCRIPTION

[0039] 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.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0041] Example 1

[0042] See also Figures 1 to 13The present embodiment provides a stamping die for processing automobile parts, comprising: a workbench 1, a stamping device 2 is installed on the top of the workbench 1, a lower die 3 is installed on the top of the workbench 1 below the stamping device 2; a fourth fixed sleeve 40, the fourth fixed sleeve 40 is slidably connected to the inside of the lower die 3, the inner side of the lower die 3 is fixedly connected to the second fixed sleeve 32, the top of the second fixed sleeve 32 is fixedly connected to the third fixed sleeve 33, the inner side of the third fixed sleeve 33 is fixedly connected to the movable sleeve 34, the top of the movable sleeve 34 is fixedly connected to the suction cup 41, and the suction cup 41 is fixedly connected to the fourth fixed sleeve The inner side of the fixed sleeve 40 and the inner side of the workbench 1 are slidably connected with a sliding rod 13, and a rebound groove 19 matching the sliding rod 13 is provided on the inner side of the workbench 1. A second spring 14 is installed between the sliding rod 13 and the second fixed sleeve 32, and the sliding rod 13 is fixedly connected to the movable sleeve 34 through the third connecting rod 12; the calibration mechanism is located below the workbench 1 and is used to calibrate the plate on the top of the lower mold 3. The calibration mechanism includes four first slide grooves 4 provided on the top of the workbench 1, and each first slide groove 4 is slidably connected to a first slider 11, and the top of the first slider 11 is fixedly connected to a rectangular The top of the rectangular plate 5 is fixedly connected with a push plate 8, the side wall of the first slider 11 is fixedly connected with a first spring 7, one end of the first spring 7 is fixedly connected with a fixed plate 6, and the fixed plate 6 is fixedly connected to the top of the workbench 1, and the bottom of the first slider 11 is provided with a pushing component for pushing the first slider 11, and the pushing component includes a first fixed sleeve 20 fixedly connected to the bottom of the workbench 1, the inner side of the first fixed sleeve 20 is slidably connected with a first straight rack 17, and the first straight rack 17 is fixedly connected to the bottom of the sliding rod 13, and the inner side of the first fixed sleeve 20 is rotatably connected with a meshing with the first straight rack 17 The first spur gear 16 is provided, the inner side of the first fixed sleeve 20 is provided with a second slide groove 15 matching the first spur rack 17, the outer wall of the first fixed sleeve 20 is slidably connected with a circular slider 18, the inner side of the circular slider 18 is fixedly connected with a second spur rack 22 meshing with the first spur gear 16, a third spring 21 is installed between the circular slider 18 and the first fixed sleeve 20, the outer wall of the circular slider 18 is equidistantly fixedly connected with four first connecting rods 9, the top of each first connecting rod 9 is rotatably connected with a second connecting rod 10, and one end of the second connecting rod 10 is rotatably connected with the first slider 11;

[0043] The stamping equipment 2 is composed of a bracket, a hydraulic rod, a stamping head and other components. The staff places the automobile stamping sheet on the lower mold 3, and then starts the stamping equipment 2 to stamp the sheet. When the stamping equipment 2 squeezes the fourth fixed sleeve 40, the fourth fixed sleeve 40 moves downward and drives the sliding rod 13 to move downward through the movable sleeve 34. When the first spur rack 17 is engaged with the first spur gear 16, the first spur rack 17 continues to move downward to drive the first spur gear 16 to rotate, and then drives the second spur rack 22 to drive the circular slider 18 to move upward, so that the four second connecting rods 10 respectively push a first spur rack 17 to drive a second slide 15 to move toward the sheet, and then move the four push plates 8 toward the sheet to adjust its position, so that the sheet can be calibrated to the center position of the lower mold 3 before stamping, without the need for manual calibration by the staff, thereby improving the stamping efficiency of the sheet;

[0044] When the top of the fourth fixed sleeve 40 is flush with the top of the lower mold 3, the teeth on the outer wall of the first spur rack 17 are separated from the first spur gear 16, so that the fixed plate 6 is no longer subjected to external force and is reset under the action of the first spring 7, thereby not affecting the stamping of the plate.

[0045] Example 2

[0046] The auxiliary stamping part is located at the top of the lower mold 3 and is used to assist the stamping equipment 2 in stamping automobile plates. The auxiliary stamping part includes four groups of first fixed seats 24 fixedly connected to the inner side of the lower mold 3, and an auxiliary plate 23 is arranged on the inner side of each group of first fixed seats 24. A first shaft rod 25 is fixedly connected to both sides of each auxiliary plate 23. One end of each first shaft rod 25 passes through the outside of the first fixed seat 24 and is rotatably connected to the first fixed seat 24. One end of each first shaft rod 25 is fixedly connected to a bevel gear 26, and the bevel gears 26 close to each other are meshed. The auxiliary stamping part also includes a third spur rack 29 slidably connected to the inner side of the lower mold 3, one end of the third spur rack 29 is rotatably connected to a power wheel 57, the inner side of the lower mold 3 is rotatably connected to a second spur gear 30, and one end of the fourth fixed sleeve 40 is fixedly connected to a fourth spur rack 31 meshing with the second spur gear 30;

[0047] When the top of the fourth fixed sleeve 40 is flush with the top of the lower die 3, the power wheel 57 is attached to the back of the auxiliary plate 23. When the sheet is pressed inward by the stamping device 2 to squeeze the fourth fixed sleeve 40, the fourth spur rack 31 is driven downward by the fourth fixed sleeve 40, and the fourth spur rack 31 drives the second spur gear 30 to rotate, thereby driving the third spur rack 29 to drive the power wheel 57 to move upward, pushing an auxiliary plate 23 to rotate along with the stamping and bending angle of the sheet at the top of the lower die 3. The rotation of an auxiliary plate 23 drives the two bevel gears 26 to rotate synchronously at the same time. The adjacent bevel gears 26 mesh with each other, thereby driving the adjacent auxiliary plates 23 to rotate toward the inner side of the lower mold 3, so that the four auxiliary plates 23 rotate synchronously with the stamping angle of the plate. When the auxiliary plate 23 rotates ninety degrees, the power wheel 57 is attached to the back of the auxiliary plate 23. Through the cooperation of the above multiple parts, the four auxiliary plates 23 are rotated with the stamping angle of the plate, so that the four auxiliary plates 23 are always attached to their outer walls during the stamping process of the plate, thereby supporting the stamping of the plate, thereby ensuring that the plate will not shake during the stamping process, thereby improving the stamping accuracy.

[0048] Example 3

[0049] The adsorption fixture is located inside the lower mold 3 and is used to adsorb the stamping sheet on the top of the lower mold 3. The adsorption fixture includes a first piston plate 35 slidably connected to the movable sleeve 34 and the inner side of the suction cup 41. The inner side of the third fixed sleeve 33 is fixedly connected with a sliding sleeve 55, and one end of the sliding sleeve 55 penetrates the outside of the third fixed sleeve 33. A solenoid valve 54 is installed at the air inlet of the sliding sleeve 55. One end of the solenoid valve 54 is fixedly connected with a connecting pipe 56, and one end of the connecting pipe 56 is connected to the exhaust port of the movable sleeve 34. A second piston plate 51 is installed inside, a rectangular rod 50 is fixedly connected to one side of the second piston plate 51, and one end of the rectangular rod 50 penetrates the outside of the sliding sleeve 55 and is slidably connected to the sliding sleeve 55, a fourth spring 53 is installed between the second piston plate 51 and the sliding sleeve 55, the adsorption fixture also includes an abutment plate 27 fixedly connected to one end of the rectangular rod 50, an oblique groove is arranged on the inner side of the abutment plate 27, a fourth connecting rod 28 is fixedly connected to one side of the fourth spur rack 31, one end of the fourth connecting rod 28 is arranged as an arc surface, and the arc surface is located above the oblique groove;

[0050] A sealing component for sealing is provided between the second shaft 42 and the suction cup 41. The sealing component can be a sealing component such as a sealing rubber. When the top of the fourth fixed sleeve 40 is flush with the top of the lower mold 3, the solenoid valve 54 is in an open state. When the sheet is placed on the lower mold 3, it will be squeezed on the top of the suction cup 41. When the sheet is stamped, the fourth fixed sleeve 40 moves downward and drives the fourth connecting rod 28 to move toward the inner bottom of the lower mold 3 through the fourth spur rack 31. At the same time, the bottom arc surface of the fourth connecting rod 28 contacts the inner oblique groove of the abutment plate 27. When the fourth connecting rod 28 continues to move downward, pushing the abutment plate 27 to drive the rectangular rod 50 to move away from the third fixed sleeve 33, thereby sucking the inside of the movable sleeve 34 through the second piston plate 51, so that a negative pressure is formed between the plate and the suction cup 41, thereby fixing the center position of the stamped plate, ensuring that the plate is always flat during the entire stamping process, thereby improving the accuracy of subsequent stamping, and when the fourth connecting rod 28 passes through the inner inclined groove of the abutment plate 27, the solenoid valve 54 is closed, so that the equipment does not affect the subsequent stamping effect.

[0051] Example 4

[0052] The top of the fourth fixed sleeve 40 is provided with an auxiliary unloading assembly, which includes a sixth connecting rod 43 rotatably connected to the inner side of the fourth fixed sleeve 40, one end of the sixth connecting rod 43 is fixedly connected to the second shaft rod 42, a first torsion spring 44 is installed between the second shaft rod 42 and the fourth fixed sleeve 40, the two second shaft rods 42 are fixedly connected by a fifth connecting rod 38, one side of the two second shaft rods 42 is fixedly connected to an elastic plate 52, the top of the first piston plate 35 is fixedly connected to a straight plate 36, and the inner side of the straight plate 36 is fixedly connected to a plurality of The second fixed seats 46 are at equal distances, and a rotating tooth 37 is provided on the inner side of each second fixed seat 46. A fixing block 45 is provided at the bottom of each rotating tooth 37. Each fixing block 45 is fixedly connected to the straight plate 36. A third shaft 47 is fixedly connected to one side of the rotating tooth 37. One end of the third shaft 47 penetrates the outside of the second fixed seat 46 and is rotatably connected to the second fixed seat 46. One end of the third shaft 47 is fixedly connected to a fixing circular plate 48. A second torsion spring 49 is installed between the fixing circular plate 48 and the second fixed seat 46.

[0053] The straight plate 36 is initially located above the fourth fixed sleeve 40. When the sheet to be stamped is placed on the top of the fourth fixed sleeve 40, the straight plate 36 will be squeezed, thereby pushing the straight plate 36 to move downward, so that the inner inclined surface of the rotating latch 37 contacts the third spur gear 39, and the rotating latch 37 is pushed to rotate toward the inside of the straight plate 36 under the resistance of the third spur gear 39. When the rotating latch 37 is separated from the third spur gear 39, the rotating latch 37 is reset under the action of the second torsion spring 49. When the sheet is stamped, the stamping equipment 2 returns to its original position. At this time, the second spring 14 drives the sliding rod 13 to move to the top of the lower mold 3. When the fourth fixed sleeve 40 is reset to its initial position, the stamped sheet is ejected from the lower mold 3 and is located above the lower mold 3. When the fourth fixed sleeve 40 is reset to its initial position , the solenoid valve 54 is opened, and the gas inside the sliding sleeve 55 pushes the first piston plate 35 upward under the action of the fourth spring 53, so that the straight plate 36 can lift the stamped workpiece on the top of the fourth fixed sleeve 40. Since the top of the suction cup 41 used for sealing is composed of elastic rubber, the straight plate 36 gradually lifts the stamped workpiece. Under the action of the top elastic rubber, the suction cup 41 has not yet separated from the stamped workpiece, so that the straight plate 36 rotates the top plane of the latch tooth 37 to contact the third spur gear 39 during the resetting process, and the third spur gear 39 is driven to rotate the elastic plate 52 through the fourth connecting rod 28, so that the elastic plate 52 can be tilted, so as to form a side push on the stamped workpiece, so as to facilitate the automatic discharge of the stamped workpiece, thereby improving the efficiency of subsequent stamping;

[0054] When the straight plate 36 is reset to the initial position, the rotating latch 37 and the third spur gear 39 are in a separated state.

[0055] In combination with the above-mentioned stamping die for processing automobile parts, a stamping forming method for processing automobile parts is provided, which specifically includes the following steps:

[0056] S1. The stamping equipment 2 is composed of a bracket, a hydraulic rod, a stamping head and other components. The staff places the automobile stamping sheet on the lower mold 3, and then starts the stamping equipment 2 to stamp the sheet. When the stamping equipment 2 squeezes the fourth fixed sleeve 40, the fourth fixed sleeve 40 moves downward and drives the sliding rod 13 to move downward through the movable sleeve 34. When the first spur rack 17 is engaged with the first spur gear 16, the first spur rack 17 continues to move downward to drive the first spur gear 16 to rotate, and then drives the second spur rack 22 to drive the circular slider 18 to move upward, so that the four second connecting rods 10 respectively push a first spur rack 17 to drive a second slide 15 to move toward the sheet, and then move the four push plates 8 toward the sheet to adjust its position, so that the sheet can be calibrated to the center position of the lower mold 3 before stamping, without the need for manual calibration by the staff, thereby improving the stamping efficiency of the sheet;

[0057] When the top of the fourth fixed sleeve 40 is flush with the top of the lower mold 3, the teeth on the outer wall of the first spur rack 17 are separated from the first spur gear 16, so that the fixed plate 6 is no longer subjected to external force and is reset under the action of the first spring 7, so as not to affect the stamping of the plate;

[0058] S2. When the top of the fourth fixed sleeve 40 is flush with the top of the lower mold 3, the power wheel 57 is attached to the back of the auxiliary plate 23. When the sheet is pressed inward by the stamping equipment 2 to squeeze the fourth fixed sleeve 40, the fourth spur rack 31 is driven downward by the fourth fixed sleeve 40, and the fourth spur rack 31 drives the second spur gear 30 to rotate, thereby driving the third spur rack 29 to drive the power wheel 57 to move upward, pushing one auxiliary plate 23 to rotate along with the stamping and bending angle of the sheet at the top of the lower mold 3. The rotation of one auxiliary plate 23 drives the two bevel gears 26 to rotate synchronously at the same time. The bevel gears 26 that are close to each other are meshed, thereby driving the auxiliary plates 23 that are close to each other to rotate toward the inner side of the lower mold 3, so that the four auxiliary plates 23 are synchronously rotated with the stamping angle of the plate. When the auxiliary plate 23 rotates ninety degrees, the power wheel 57 is attached to the back of the auxiliary plate 23. Through the cooperation of the above multiple parts, the four auxiliary plates 23 are rotated with the stamping angle of the plate, so that the four auxiliary plates 23 are always attached to the outer wall during the stamping process of the plate, thereby supporting the stamping of the plate, thereby ensuring that the plate will not shake during the stamping process, thereby improving the stamping accuracy;

[0059] S3, a sealing component for sealing is arranged between the second shaft rod 42 and the suction cup 41. The sealing component can be a sealing component such as a sealing rubber. When the top of the fourth fixed sleeve 40 is flush with the top of the lower mold 3, the solenoid valve 54 is in an open state. When the plate is placed on the lower mold 3, it will be squeezed on the top of the suction cup 41. When the plate is stamped, the fourth fixed sleeve 40 moves downward and drives the fourth connecting rod 28 to move toward the inner bottom of the lower mold 3 through the fourth spur rack 31. At the same time, the bottom arc surface of the fourth connecting rod 28 is in contact with the inner oblique groove of the abutment plate 27. When the fourth connecting rod 28 is touched, the fourth connecting rod 28 continues to move downward, pushing the abutting plate 27 to drive the rectangular rod 50 to move away from the third fixed sleeve 33, so that the inside of the movable sleeve 34 is sucked through the second piston plate 51, so that a negative pressure is formed between the plate and the suction cup 41, so that the center position of the stamped plate is fixed, ensuring that the plate is always flat during the entire stamping process, thereby improving the accuracy of subsequent stamping. When the fourth connecting rod 28 passes through the inner inclined groove of the abutting plate 27, the solenoid valve 54 is closed, so that the equipment does not affect the subsequent stamping effect;

[0060] S4, the straight plate 36 is initially located above the fourth fixed sleeve 40. When the sheet to be stamped is placed on the top of the fourth fixed sleeve 40, the straight plate 36 will be squeezed, thereby pushing the straight plate 36 to move downward, so that the inner inclined surface of the rotating latch 37 contacts the third spur gear 39, and the rotating latch 37 is pushed to rotate toward the inside of the straight plate 36 under the resistance of the third spur gear 39. When the rotating latch 37 is separated from the third spur gear 39, the rotating latch 37 is reset under the action of the second torsion spring 49. When the sheet is stamped, the stamping equipment 2 returns to its original position. At this time, the second spring 14 drives the sliding rod 13 to move to the top of the lower mold 3. When the fourth fixed sleeve 40 is reset to its initial position, the stamped sheet is ejected from the lower mold 3 and is located above the lower mold 3. When the fourth fixed sleeve 40 is reset to its initial position When the solenoid valve 54 is set, the internal gas of the sliding sleeve 55 pushes the first piston plate 35 upward under the action of the fourth spring 53, so that the straight plate 36 can lift the stamped workpiece on the top of the fourth fixed sleeve 40. Since the top of the suction cup 41 used for sealing is composed of elastic rubber, the suction cup 41 has not been separated from the stamped workpiece under the action of the top elastic rubber during the process of gradually lifting the stamped workpiece by the straight plate 36, so that the straight plate 36 rotates the top plane of the latch tooth 37 to contact the third spur gear 39 during the resetting process, and the third spur gear 39 is driven to rotate the elastic plate 52 through the fourth connecting rod 28, so that the elastic plate 52 can be tilted, so as to form a side push on the stamped workpiece, so as to facilitate the automatic discharge of the stamped workpiece, thereby improving the efficiency of subsequent stamping.

[0061] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping die for processing automobile parts, characterized in that: include: A workbench (1), a stamping device (2) is installed on the top of the workbench (1), and a lower mold (3) is installed on the top of the workbench (1) below the stamping device (2); A fourth fixed sleeve (40), the fourth fixed sleeve (40) is slidably connected to the inside of the lower mold (3), the inner side of the lower mold (3) is fixedly connected to a second fixed sleeve (32), the top of the second fixed sleeve (32) is fixedly connected to a third fixed sleeve (33), the inner side of the third fixed sleeve (33) is fixedly connected to a movable sleeve (34), the top of the movable sleeve (34) is fixedly connected to a suction cup (41), and the suction cup (41) is fixedly connected to the inner side of the fourth fixed sleeve (40), the inner side of the workbench (1) is slidably connected to a sliding rod (13), the inner side of the workbench (1) is provided with a rebound groove (19) matching the sliding rod (13), a second spring (14) is installed between the sliding rod (13) and the second fixed sleeve (32), and the sliding rod (13) is fixedly connected to the movable sleeve (34) through a third connecting rod (12); A calibration mechanism, located below the workbench (1), and used for calibrating the plate on the top of the lower mold (3); An auxiliary stamping part, located on the top of the lower die (3), and used to assist the stamping device (2) in stamping automobile panels; The adsorption fixture is located inside the lower mold (3) and is used to adsorb the stamping plate on the top of the lower mold (3).

2. A stamping die for processing automobile parts according to claim 1, characterized in that: The calibration mechanism comprises four first slide grooves (4) provided on the top of the workbench (1), each of the first slide grooves (4) being slidably connected to a first slider (11), the top of the first slider (11) being fixedly connected to a rectangular plate (5), the top of the rectangular plate (5) being fixedly connected to a push plate (8), the side wall of the first slider (11) being fixedly connected to a first spring (7), one end of the first spring (7) being fixedly connected to a fixed plate (6), and the fixed plate (6) being fixedly connected to the top of the workbench (1), and the bottom of the first slider (11) being provided with a pushing component for pushing the first slider (11).

3. A stamping die for automobile parts processing according to claim 2, characterized in that: The pushing component comprises a first fixed sleeve (20) fixedly connected to the bottom of the workbench (1), a first spur rack (17) is slidably connected to the inner side of the first fixed sleeve (20), and the first spur rack (17) is fixedly connected to the bottom of the sliding rod (13), a first spur gear (16) meshing with the first spur rack (17) is rotatably connected to the inner side of the first fixed sleeve (20), a second sliding groove (15) matching the first spur rack (17) is provided on the inner side of the first fixed sleeve (20), and the first fixed sleeve (20) ) is slidably connected to the outer wall of a circular slider (18), the inner side of the circular slider (18) is fixedly connected to a second spur rack (22) meshing with the first spur gear (16), a third spring (21) is installed between the circular slider (18) and the first fixed sleeve (20), and four first connecting rods (9) are fixedly connected to the outer wall of the circular slider (18) at equal distances, the top of each of the first connecting rods (9) is rotatably connected to a second connecting rod (10), and one end of the second connecting rod (10) is rotatably connected to the first slider (11).

4. A stamping die for processing automobile parts according to claim 3, characterized in that: The auxiliary stamping part comprises four groups of first fixed seats (24) fixedly connected to the inner side of the lower mold (3), an auxiliary plate (23) is arranged on the inner side of each group of the first fixed seats (24), and a first shaft rod (25) is fixedly connected to both sides of each auxiliary plate (23), one end of each first shaft rod (25) passes through the outside of the first fixed seat (24) and is rotatably connected to the first fixed seat (24), and one end of each first shaft rod (25) is fixedly connected to a bevel gear (26), and the bevel gears (26) are meshed and arranged in pairs close to each other.

5. A stamping die for processing automobile parts according to claim 4, characterized in that: The auxiliary stamping part also includes a third spur rack (29) slidably connected to the inner side of the lower mold (3), one end of the third spur rack (29) is rotatably connected to a power wheel (57), the inner side of the lower mold (3) is rotatably connected to a second spur gear (30), and one end of the fourth fixed sleeve (40) is fixedly connected to a fourth spur rack (31) meshing with the second spur gear (30).

6. A stamping die for processing automobile parts according to claim 5, characterized in that: The adsorption fixture comprises a first piston plate (35) slidably connected to the inner side of the movable sleeve (34) and the suction cup (41); a sliding sleeve (55) is fixedly connected to the inner side of the third fixed sleeve (33); one end of the sliding sleeve (55) penetrates to the outside of the third fixed sleeve (33); an electromagnetic valve (54) is installed at the air inlet of the sliding sleeve (55); one end of the electromagnetic valve (54) is fixedly connected to a connecting pipe (56); and one end of the connecting pipe (56) is connected to the movable sleeve (34). The movable sleeve (34) is connected at the exhaust port, a second piston plate (51) is installed inside the sliding sleeve (55), a rectangular rod (50) is fixedly connected to one side of the second piston plate (51), and one end of the rectangular rod (50) passes through the outside of the sliding sleeve (55) and is slidably connected to the sliding sleeve (55), a fourth spring (53) is installed between the second piston plate (51) and the sliding sleeve (55), and an auxiliary unloading assembly is provided on the top of the fourth fixed sleeve (40).

7. A stamping die for processing automobile parts according to claim 6, characterized in that: The adsorption fixture also includes an abutment plate (27) fixedly connected to one end of the rectangular rod (50), an inner side of the abutment plate (27) is provided with an oblique groove, one side of the fourth spur rack (31) is fixedly connected to a fourth connecting rod (28), one end of the fourth connecting rod (28) is provided with an arc surface, and the arc surface is located above the oblique groove.

8. A stamping die for processing automobile parts according to claim 7, characterized in that: The auxiliary unloading assembly comprises a sixth connecting rod (43) rotatably connected to the inner side of the fourth fixed sleeve (40), one end of the sixth connecting rod (43) is fixedly connected to the second shaft rod (42), a first torsion spring (44) is installed between the second shaft rod (42) and the fourth fixed sleeve (40), two second shaft rods (42) are fixedly connected via a fifth connecting rod (38), one side of the two second shaft rods (42) is fixedly connected to an elastic plate (52), the top of the first piston plate (35) is fixedly connected to a straight plate (36), and the inner side of the straight plate (36) is fixedly connected to a plurality of second fixed seats (46) with equal distances, A rotating tooth (37) is arranged on the inner side of each second fixed seat (46), a fixed block (45) is arranged at the bottom of each rotating tooth (37), each fixed block (45) is fixedly connected to the straight plate (36), a third shaft rod (47) is fixedly connected to one side of the rotating tooth (37), one end of the third shaft rod (47) passes through the outside of the second fixed seat (46) and is rotatably connected to the second fixed seat (46), one end of the third shaft rod (47) is fixedly connected to a fixed circular plate (48), and a second torsion spring (49) is installed between the fixed circular plate (48) and the second fixed seat (46).

9. A stamping method for automobile parts processing, characterized in that: The stamping die for processing automobile parts according to claim 8 comprises the following steps: S1. The stamping device (2) is composed of a bracket, a hydraulic rod, a stamping head and other components. A worker places a stamping sheet of an automobile on the lower die (3), and then starts the stamping device (2) to stamp the sheet. When the stamping device (2) presses the fourth fixed sleeve (40), the fourth fixed sleeve (40) moves downward and drives the sliding rod (13) to move downward through the movable sleeve (34). When the first spur rack (17) is meshed with the first spur gear (16), the first spur rack (17) continues to move downward. The first spur gear (16) is driven to rotate, and the second spur rack (22) is driven to drive the circular slider (18) to move upward, so that the four second connecting rods (10) respectively push one of the first spur racks (17) to drive one of the second slide grooves (15) to move in the direction of the plate, and then the four push plates (8) are moved in the direction of the plate to adjust its position, so that the plate can be calibrated to the center position of the lower mold (3) before stamping, without the need for manual calibration by the staff, thereby improving the stamping efficiency of the plate; When the top of the fourth fixed sleeve (40) is flush with the top of the lower mold (3), the latching teeth on the outer wall of the first spur rack (17) are separated from the first spur gear (16), so that the fixed plate (6) is no longer subjected to external force and is reset under the action of the first spring (7), thereby not affecting the stamping of the plate; S2. When the top of the fourth fixed sleeve (40) is flush with the top of the lower mold (3), the power wheel (57) is attached to the back of the auxiliary plate (23). When the plate is pressed inward by the stamping equipment (2) to squeeze the fourth fixed sleeve (40), the fourth fixed sleeve (40) drives the fourth spur rack (31) to move downward, and the fourth spur rack (31) drives the second spur gear (30) to rotate, thereby driving the third spur rack (29) to drive the power wheel (57) to move upward, pushing one of the auxiliary plates (23) to rotate along with the stamping and bending angle of the plate at the top of the lower mold (3). The rotation of one of the auxiliary plates (23) simultaneously drives the two bevel gears (26) are rotated synchronously. Since the bevel gears (26) close to each other are meshed, the auxiliary plates (23) close to each other are driven to rotate toward the inside of the lower mold (3), so that the four auxiliary plates (23) are rotated synchronously with the stamping angle of the plate. When the auxiliary plate (23) rotates ninety degrees, the power wheel (57) is attached to the back of the auxiliary plate (23). Through the cooperation of the above multiple parts, the four auxiliary plates (23) are rotated with the stamping angle of the plate, so that the four auxiliary plates (23) are always attached to the outer wall during the stamping process of the plate, thereby supporting the stamping of the plate, thereby ensuring that the plate will not shake during the stamping process, thereby improving the stamping accuracy; S3. A sealing component for sealing is arranged between the second shaft rod (42) and the suction cup (41). The sealing component can be a sealing component such as a sealing rubber. When the top of the fourth fixed sleeve (40) is flush with the top of the lower mold (3), the solenoid valve (54) is in an open state. When a sheet is placed on the lower mold (3), it will be pressed against the top of the suction cup (41). When the sheet is being stamped, the fourth fixed sleeve (40) moves downward and drives the fourth connecting rod (28) to move toward the inner bottom of the lower mold (3) through the fourth spur rack (31). At the same time, the bottom arc surface of the fourth connecting rod (28) is in contact with the abutment plate (27). ), the fourth connecting rod (28) continues to move downward, pushing the abutment plate (27) to drive the rectangular rod (50) to move away from the third fixed sleeve (33), thereby sucking the inside of the movable sleeve (34) through the second piston plate (51), so that a negative pressure is formed between the plate and the suction cup (41), thereby fixing the center position of the stamped plate, ensuring that the plate is always flat during the entire stamping process, thereby improving the accuracy of subsequent stamping. When the fourth connecting rod (28) passes through the inner oblique groove of the abutment plate (27), the solenoid valve (54) is closed, so that the equipment does not affect the subsequent stamping effect; S4, the straight plate (36) is initially located above the fourth fixed sleeve (40), and when the plate to be punched is placed on the top of the fourth fixed sleeve (40), the straight plate (36) is squeezed, thereby pushing the straight plate (36) to move downward, so that the inner inclined surface of the rotating latch tooth (37) contacts the third spur gear (39), and the rotating latch tooth (37) is pushed to rotate toward the inside of the straight plate (36) under the resistance of the third spur gear (39). When the rotating latch tooth ( When the third spur gear (37) is separated from the third spur gear (39), the rotating latch tooth (37) is reset under the action of the second torsion spring (49). When the sheet is stamped, the stamping device (2) returns to its original position. At this time, the second spring (14) drives the sliding rod (13) to move toward the top of the lower die (3). When the fourth fixed sleeve (40) is reset to its initial position, the stamped sheet is ejected from the lower die (3) and is located above the lower die (3). When the fourth fixed sleeve (40) is reset to its initial position, the sheet is ejected from the lower die (3) and is located above the lower die (3). When the sleeve (40) is reset to the initial position, the solenoid valve (54) is opened, and the gas inside the sliding sleeve (55) pushes the first piston plate (35) to move upward under the action of the fourth spring (53), so that the straight plate (36) can lift the stamped workpiece on the top of the fourth fixed sleeve (40). Since the sealing portion of the top of the suction cup (41) is composed of elastic rubber, the suction cup (41) is pressed during the process of the straight plate (36) gradually lifting the stamped workpiece. 41) has not yet been separated from the punched workpiece under the action of the top elastic rubber, so that the top plane of the rotating latch tooth (37) of the straight plate (36) contacts the third spur gear (39) during the resetting process, and the third spur gear (39) is driven to rotate the elastic plate (52) through the fourth connecting rod (28), so that the elastic plate (52) can be tilted up to form a side push on the punched workpiece, thereby facilitating the automatic discharge of the punched workpiece, thereby improving the efficiency of subsequent punching.

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