Positioning device for diaphragm spring stamping and using method thereof

Abstract

The invention discloses a positioning device for diaphragm spring stamping machining and a using method thereof, and belongs to the technical field of diaphragm spring machining. The positioning device comprises a fixing base, a protective shell is connected to the upper portion of the fixing base, a mounting cylinder is connected to one side of the fixing base, and a plurality of fixing blocks are connected to the fixing base; and the fixed seat is rotationally connected with a driving gear. According to the device, a driving motor is started to rotate a driving gear, so that the driving gear drives a gear ring to rotate, and the gear ring synchronously drives a plurality of driven gears to rotate, so that an auxiliary gear pushes a rack, then the rack pushes limiting blocks to move, and the four limiting blocks are made to synchronously get close to a metal circular plate; accordingly, the metal circular plate is limited in multiple directions through the four limiting blocks, sliding deflection is prevented, the stamping machining precision is improved, the inclined metal circular plate can be pushed and placed through the four limiting blocks, centering and positioning of the metal circular plate are promoted, a worker can conveniently place and position the metal circular plate, and the stamping machining effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of diaphragm spring processing, and in particular relates to a positioning device for diaphragm spring stamping processing and a use method thereof. Background Art

[0002] The diaphragm spring is a specially designed disc spring that is widely used in clutches, valves, shock absorbers and other fields. It is especially used as the core component of the clamping mechanism in automobile clutches. The basic structure of the diaphragm spring is conical or disc-shaped, with a separation finger, or "notch" in the center and a complete ring on the outer edge. The corresponding notch mold and drawing mold are usually used to stamp the metal sheet.

[0003] In the stamping process of some diaphragm springs, a notch is usually punched out first, and then the circular plate is punched into a cone or dish shape. The notch is usually placed and positioned manually during stamping. The workers' processing experience has a certain impact on the processing accuracy and is not universal, thus affecting the stamping process effect. In addition, the material is usually taken manually, which poses certain safety hazards. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a positioning device for diaphragm spring stamping processing and a method of using the same, which solves the problem that the placement and positioning during slot stamping usually rely on manual labor, the workers' processing experience will affect the processing accuracy, and it is not universal, thereby affecting the stamping processing effect. In addition, the material is usually taken manually, which poses certain safety hazards.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a positioning device for stamping a diaphragm spring, comprising a fixed seat, a protective shell connected to the upper portion of the fixed seat, a mounting cylinder connected to one side of the fixed seat, a plurality of fixed blocks connected to the fixed seat, a driving gear rotatably connected to the fixed seat, a plurality of driven gears rotatably connected to the fixed seat via a rotating shaft, a slewing bearing fixedly mounted on the fixed seat, and a gear ring fixedly mounted on the slewing bearing; A plurality of hollow plates are connected to the protective shell, a driving motor is fixedly mounted on the protective shell, a hydraulic push rod is fixedly mounted in the mounting cylinder, a movable end of the hydraulic push rod is rotatably connected to a movable column, a slide groove is provided on the movable column, a swing arm is connected to the movable column, an electric push rod is fixedly mounted on one end of the swing arm, and a plurality of connecting frames are connected to the movable end of the electric push rod; The connecting frame is connected to an electromagnetic plate, the driven gear is connected to a pinion, the pinion is meshedly connected to a rack, one end of the rack is connected to a limiting block, the limiting block is provided with a placement surface, and the limiting block is provided with an inclined surface.

[0006] As a further solution of the present invention: there are four fixed blocks in total, and the four fixed blocks are arranged on the fixed seat in a centrally symmetrical manner, a fixing hole is opened on the fixed block, the movable column passes through the mounting tube and slides with the mounting tube, and a circular through groove is provided on the fixed seat.

[0007] As a further solution of the present invention: the chute is of spiral design, and the number of spiral turns of the chute is half a turn, and the chute is two in total and is arranged on the movable column in a centrally symmetrical manner.

[0008] As a further solution of the present invention: push blocks are connected to the inner walls on both sides of the installation cylinder, the push blocks are located in the slide groove and slide in the slide groove, and a rubber layer is provided at the inclined position of the limit block.

[0009] As a further solution of the present invention: the gear ring is fixedly connected to the inner ring of the slewing support by bolts, the fixed seat is fixedly connected to the outer ring of the slewing support by bolts, the rack slides in the hollow plate and is connected to a limiting bar on one end side, and there are four driven gears, racks, limit blocks and hollow plates and they are all distributed in a centrally symmetrical manner.

[0010] As a further solution of the present invention: an L-shaped notch is provided on the side of the hollow plate close to the secondary gear, the rack specifically passes through the L-shaped notch on one side of the hollow plate and engages with the secondary gear, a limiting groove is provided on the inner wall of one side of the hollow plate, the limiting bar and the limiting groove are both T-shaped, and the limiting bar slides in the limiting groove.

[0011] As a further solution of the present invention: the output shaft of the driving motor is connected to a rotating rod, which passes through the protective shell and is rotatably connected to the protective shell through a bearing. One end of the rotating rod passes through the protective shell and is connected to the driving gear, and the driving gear and the driven gear are both engaged with the ring gear.

[0012] A method for using a positioning device for diaphragm spring stamping processing, the method comprising the following steps: During installation, the staff screws bolts into the fixing holes on the fixing block to fix the fixing base on the processing platform, and then installs the stamping lower die in the circular groove of the fixing base, so that the center of the stamping lower die is coaxially aligned with the center of the circular groove, and the placement surface of the limit block is aligned with the end face of the stamping lower die. During stamping processing, the staff places the metal circular plate to be notched on the stamping lower die; Then the drive motor is started to rotate the rotating rod, causing the rotating rod to drive the driving gear to rotate. The engagement between the driving gear and the ring gear causes the ring gear to rotate. As the ring gear rotates, the ring gear will synchronously drive multiple driven gears to rotate. The rotation of the driven gear will synchronously drive the sub-gear to rotate. As the sub-gear and the rack mesh, the sub-gear pushes the rack, causing the limit bar to slide in the limit groove, and then the rack can push the limit block to move. The four limit blocks are forced to approach the metal circular plate synchronously. At this time, the end face of the metal circular plate will contact the placement surface of the limit blocks and gradually squeeze the rubber layer on the inclined surface of the limit blocks until it is completely fitted. Thus, the metal circular plate is limited in multiple directions by the four limit blocks, preventing the metal circular plate from sliding and deflecting during stamping, thereby improving the stamping processing accuracy. After the notch of the diaphragm spring is stamped and formed, the stamping upper die is raised and the hydraulic push rod is started, prompting the hydraulic push rod to pull the movable column downward; During the downward movement of the movable column, the push block pushes the wall of the chute. Due to the spiral design of the chute, the movable column can rotate synchronously when it moves downward, so that the movable column drives the swing arm to rotate, prompting the electric push rod and the electromagnetic plate to approach the fixed seat. Then the electric push rod is started to push the electromagnetic plate downward, so that the electromagnetic plate contacts the stamped metal circular plate, and then the metal circular plate is attracted by the magnetic force of the electromagnetic plate. Then the drive motor is started to reversely rotate the drive gear. The secondary gear pushes the rack back, causing multiple limit blocks to move away from the metal circular plate synchronously. Then the electric push rod pulls up the electromagnetic plate to complete the material removal. The hydraulic push rod is then started to push the movable column upward, causing the movable column to drive the swing arm to rotate away from the fixed seat, thereby completing the unloading work. There is no need for workers to approach the processing area, avoiding the occurrence of safety accidents and improving the safety of use.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a driving motor, a driving gear, a gear ring, a driven gear, a sub-gear, a rack, a limit block and a rubber layer are provided. After the metal circular plate is placed on the lower mold, the staff starts the driving motor to rotate the rotating rod, prompting the rotating rod to drive the driving gear to rotate, thereby utilizing the meshing of the driving gear and the gear ring to cause the driving gear to drive the gear ring to rotate. As the gear ring rotates, the gear ring will synchronously drive multiple driven gears to rotate, and the rotation of the driven gear will synchronously drive the sub-gear to rotate, thereby utilizing the meshing of the sub-gear and the rack to cause the sub-gear to push the rack, thereby causing the rack to push the limit block. The positioning block moves, prompting the four limiting blocks to synchronously approach the metal circular plate. At this time, the end face of the metal circular plate will contact the placement surface and the inclined surface of the limiting block, and gradually squeeze the rubber layer on the inclined surface of the limiting block until it is completely fitted. The metal circular plate is limited in multiple directions by the four limiting blocks, preventing the metal circular plate from sliding and deflecting during stamping, thereby improving the stamping processing accuracy. Moreover, when multiple limiting blocks contact the edge of the metal circular plate, the four limiting blocks distributed symmetrically in the center will push the deflected metal circular plate, prompting the metal circular plate to complete centering and positioning, making it convenient for the staff to place and position it, and improving the stamping processing effect. The hydraulic push rod is then started to push the movable column upward, prompting the movable column to drive the swing arm to rotate away from the fixed seat, thereby completing the material unloading work without the need for workers to approach the processing area, thereby improving the processing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the installation tube of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the protective shell of the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the gear ring of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the hollow plate of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the movable column of the present invention; In the figure: 1. Fixed seat; 2. Protective shell; 3. Mounting cylinder; 4. Fixed block; 5. Driving gear; 6. Driven gear; 7. Slewing bearing; 8. Ring gear; 9. Hollow plate; 10. Driving motor; 11. Hydraulic push rod; 12. Movable column; 13. Slide groove; 14. Swing arm; 15. Electric push rod; 16. Connecting frame; 17. Electromagnetic plate; 18. Sub-gear; 19. Rack; 20. Limit block; 21. Placement surface; 22. Inclined surface; 23. Fixing hole; 24. Push block; 25. Rubber layer; 26. Limiting strip; 27. Limiting groove; 28. Rotating rod. DETAILED DESCRIPTION

[0015] The technical solution of the present application will be further described in detail below in conjunction with specific implementation methods.

[0016] like Figure 1-6 As shown, the present invention provides a technical solution: a positioning device for diaphragm spring stamping processing, including a fixed base 1, a plurality of fixed blocks 4 are connected to the fixed base 1, and there are four fixed blocks 4 in total. The four fixed blocks 4 are arranged on the fixed base 1 in a centrally symmetrical manner, and a fixing hole 23 is opened on the fixed block 4. A circular through groove is provided on the fixed base 1. By positioning the stamping lower mold in the circular through groove on the fixed base 1 and then screwing a bolt into the fixing hole 23, the fixed base 1 can be fixed to the workbench to prevent the fixed base 1 from sliding during the stamping process.

[0017] A protective shell 2 is connected above the fixed base 1, and a drive motor 10 is fixedly installed on the protective shell 2. The output shaft of the drive motor 10 is connected to a rotating rod 28. The rotating rod 28 passes through the protective shell 2 and is rotatably connected to the protective shell 2 through a bearing. The rotating rod 28 passes through one end of the protective shell 2 and is connected to the driving gear 5. A plurality of driven gears 6 are rotatably connected to the fixed base 1 through a rotating shaft. A slewing bearing 7 is fixedly installed on the fixed base 1, and a ring gear 8 is fixedly installed on the slewing bearing 7. The ring gear 8 is specifically fixedly connected to the inner ring of the slewing bearing 7 by bolts, and the fixed base 1 is specifically fixedly connected to the outer ring of the slewing bearing 7 by bolts. The driving gear 5 and the driven gear 6 are both engaged with the ring gear 8.

[0018] A placement surface 21 is provided on the limit block 20, and an inclined surface 22 is provided on the limit block 20. Through the spiral design of the slide groove 13, the push block 24 can push the wall of the spiral slide groove 13 to cause the swing arm 14 to rotate, and the number of spiral turns is half a turn, which can limit the rotation angle of the swing arm 14 to prevent excessive rotation.

[0019] A plurality of hollow plates 9 are connected to the protective shell 2, and the hollow plates 9 pass through the protective shell 2. The rack 19 slides inside the hollow plates 9. A sub-gear 18 is coaxially fixedly connected to the driven gear 6. An L-shaped notch is provided on one side of the hollow plate 9 close to the sub-gear 18. The rack 19 specifically passes through the L-shaped notch on one side of the hollow plate 9 and engages with the sub-gear 18.

[0020] A limiting bar 26 is connected to the side of one end of the rack 19, and a limiting groove 27 is opened on the inner wall of one side of the hollow plate 9. The limiting bar 26 and the limiting groove 27 are both T-shaped, and the limiting bar 26 slides in the limiting groove 27. The sliding of the limiting bar 26 in the limiting groove 27 can guide and limit the movement of the rack 19, thereby preventing the rack 19 from deflecting when it moves. The other end of the rack 19 is connected to the limiting block 20, and a groove is provided on one side of the limiting block 20. The groove has a triangular cross-section formed by the inclined surface 22 and the placement surface 21, and a rubber layer 25 is provided at the position of the inclined surface 22.

[0021] There are four driven gears 6, racks 19, limit blocks 20 and hollow plates 9, and they are all distributed in a centrally symmetrical manner. Through the cooperation between the driving gear 5, the ring gear 8, the driven gear 6, the sub-gear 18 and the rack 19, multiple limit blocks 20 can move synchronously, thereby clamping and fixing the metal circular plate in multiple directions to prevent sliding and deflection.

[0022] A mounting cylinder 3 is connected to one side of the fixed seat 1, and push blocks 24 are connected to the inner walls on both sides of the mounting cylinder 3. A hydraulic push rod 11 is fixedly installed in the mounting cylinder 3, and the movable end of the hydraulic push rod 11 is rotatably connected to a movable column 12. The movable column 12 passes through the mounting cylinder 3 and slides with the mounting cylinder 3. A slide groove 13 is provided on the movable column 12. The slide groove 13 is a spiral design, and the number of spiral turns of the slide groove 13 is half a turn. There are two slide grooves 13 arranged on the movable column 12 in a centrally symmetrical manner. The push block 24 is located in the slide groove 13 and slides in the slide groove 13.

[0023] The movable column 12 is connected to a swing arm 14, and an electric push rod 15 is fixedly installed at one end of the swing arm 14. The movable end of the electric push rod 15 is connected to multiple connecting frames 16, and the connecting frame 16 is connected to an electromagnetic plate 17. When the hydraulic push rod 11 pulls or pushes the movable column 12, the push block 24 will slide in the slide groove 13, thereby pushing the slide groove 13 wall through the push block 24 to cause the movable column 12 to rotate, thereby causing the electromagnetic plate 17 to move closer to or away from the fixed seat 1 to complete the unloading work, and the rubber layer 25 on the inclined surface 22 can increase the friction between the limit block 20 and the metal circular plate, thereby improving the stability of the clamping fixation.

[0024] A method for using a positioning device for diaphragm spring stamping processing, the method comprising the following steps: During installation, the staff screws the bolts into the fixing holes 23 on the fixing block 4 to fix the fixing base 1 on the processing platform, and then installs the stamping lower die in the circular groove of the fixing base 1, so that the center of the stamping lower die is coaxially aligned with the center of the circular groove, and the placement surface 21 of the limit block 20 is aligned with the end surface of the stamping lower die. During the stamping process, the staff places the metal circular plate to be notched on the stamping lower die; Then, the drive motor 10 is started to rotate the rotating rod 28, causing the rotating rod 28 to drive the driving gear 5 to rotate. The driving gear 5 is meshed with the ring gear 8, causing the ring gear 8 to rotate. As the ring gear 8 rotates, the ring gear 8 synchronously drives the multiple driven gears 6 to rotate. The rotation of the driven gears 6 synchronously drives the pinion 18 to rotate. As a result, the pinion 18 is meshed with the rack 19, causing the pinion 18 to push the rack 19, causing the limiting bar 26 to slide in the limiting groove 27, and then the rack 19 can push the limit block 20 to move. The four limit blocks 20 are forced to approach the metal circular plate synchronously. At this time, the end face of the metal circular plate contacts the placement surface 21 of the limit block 20 and gradually squeezes the rubber layer 25 on the inclined surface 22 of the limit block 20 until it is completely in contact. Thus, the metal circular plate is limited in multiple directions by the four limit blocks 20, preventing the metal circular plate from sliding and deflecting during stamping, thereby improving the stamping processing accuracy. After the notch of the diaphragm spring is stamped and formed, the stamping die is raised and the hydraulic push rod 11 is activated, causing the hydraulic push rod 11 to pull the movable column 12 downward. During the downward movement of the movable column 12, the push block 24 pushes the wall of the chute 13. Due to the spiral design of the chute 13, the movable column 12 can rotate synchronously when it moves downward, so that the movable column 12 drives the swing arm 14 to rotate, prompting the electric push rod 15 and the electromagnetic plate 17 to approach the fixed seat 1. Then, the electric push rod 15 is started to push the electromagnetic plate 17 downward, so that the electromagnetic plate 17 contacts the stamped metal circular plate, and then the metal circular plate is attracted by the magnetic force of the electromagnetic plate 17. Then, the drive motor 10 is started to rotate the drive gear 5 in the opposite direction. The secondary gear 18 pushes the rack 19 in reverse, causing the multiple limit blocks 20 to move away from the metal circular plate synchronously. Then, the electric push rod 15 pulls up the electromagnetic plate 17 to complete the material removal. Then, the hydraulic push rod 11 is started to push the movable column 12 upward, causing the movable column 12 to drive the swing arm 14 to rotate away from the fixed seat 1, thereby completing the unloading work. There is no need for workers to approach the processing area, avoiding the occurrence of safety accidents and improving the safety of use.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0027] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

Claims

1. A positioning device for diaphragm spring stamping processing, comprising a fixing seat (1), characterized in that: A protective shell (2) is connected to the top of the fixing seat (1), a mounting cylinder (3) is connected to one side of the fixing seat (1), a plurality of fixing blocks (4) are connected to the fixing seat (1), a driving gear (5) is rotatably connected to the fixing seat (1), a plurality of driven gears (6) are rotatably connected to the fixing seat (1) via a rotating shaft, a slewing bearing (7) is fixedly mounted on the fixing seat (1), and a gear ring (8) is fixedly mounted on the slewing bearing (7); The protective shell (2) is connected to a plurality of hollow plates (9), a driving motor (10) is fixedly mounted on the protective shell (2), a hydraulic push rod (11) is fixedly mounted in the mounting tube (3), a movable end of the hydraulic push rod (11) is rotatably connected to a movable column (12), a slide groove (13) is provided on the movable column (12), a swing arm (14) is connected to the movable column (12), an electric push rod (15) is fixedly mounted on one end of the swing arm (14), and a movable end of the electric push rod (15) is connected to a plurality of connecting frames (16); The connecting frame (16) is connected to an electromagnetic plate (17), the driven gear (6) is connected to a pinion (18), the pinion (18) is meshedly connected to a rack (19), one end of the rack (19) is connected to a limit block (20), a placement surface (21) is provided on the limit block (20), and an inclined surface (22) is provided on the limit block (20).

2. A positioning device for diaphragm spring stamping according to claim 1, characterized in that: There are four fixed blocks (4) in total, and the four fixed blocks (4) are arranged on the fixed seat (1) in a centrally symmetrical manner. A fixing hole (23) is provided on the fixed block (4). The movable column (12) passes through the mounting tube (3) and is slidably engaged with the mounting tube (3). A circular through groove is provided on the fixed seat (1).

3. The positioning device for diaphragm spring stamping according to claim 1, characterized in that: The chute (13) is of spiral design, and the number of spiral turns of the chute (13) is half a turn. A total of two chute (13) are arranged on the movable column (12) in a centrally symmetrical manner.

4. The positioning device for diaphragm spring stamping according to claim 1, characterized in that: Push blocks (24) are connected to the inner walls on both sides of the installation cylinder (3). The push blocks (24) are located in the slide groove (13) and slide in the slide groove (13). A rubber layer (25) is provided at the inclined surface (22) of the limit block (20).

5. The positioning device for diaphragm spring stamping according to claim 1, characterized in that: The gear ring (8) is fixedly connected to the inner ring of the slewing bearing (7) by bolts, and the fixed seat (1) is fixedly connected to the outer ring of the slewing bearing (7) by bolts. The rack (19) slides in the hollow plate (9) and is connected to a limiting strip (26) at one end. There are four driven gears (6), racks (19), limiting blocks (20) and hollow plates (9), and they are all distributed in a centrally symmetrical manner.

6. The positioning device for diaphragm spring stamping according to claim 5, characterized in that: An L-shaped notch is provided on one side of the hollow plate (9) close to the secondary gear (18), and the rack (19) specifically passes through the L-shaped notch on one side of the hollow plate (9) and engages with the secondary gear (18). A limiting groove (27) is provided on the inner wall of one side of the hollow plate (9), and the limiting bar (26) and the limiting groove (27) are both T-shaped, and the limiting bar (26) slides in the limiting groove (27).

7. The positioning device for diaphragm spring stamping according to claim 1, characterized in that: The output shaft of the driving motor (10) is connected to a rotating rod (28), the rotating rod (28) passes through the protective shell (2) and is rotatably connected to the protective shell (2) via a bearing, one end of the rotating rod (28) passing through the protective shell (2) is connected to the driving gear (5), and the driving gear (5) and the driven gear (6) are both engaged with the ring gear (8).

8. A method for using a positioning device for stamping a diaphragm spring, according to any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: During installation, the staff screws a bolt into the fixing hole (23) on the fixing block (4) to fix the fixing seat (1) on the processing platform, and then sets the stamping lower die in the circular groove of the fixing seat (1), so that the center of the stamping lower die is coaxially aligned with the center of the circular groove, and the placement surface (21) of the limit block (20) is aligned with the end face of the stamping lower die. During the stamping process, the staff places the metal circular plate to be notched on the stamping lower die; Then, the driving motor (10) is started to rotate the rotating rod (28), causing the rotating rod (28) to drive the driving gear (5) to rotate, and the driving gear (5) is meshed with the ring gear (8), so that the ring gear (8) rotates. As the ring gear (8) rotates, the ring gear (8) synchronously drives the plurality of driven gears (6) to rotate, and the rotation of the driven gear (6) synchronously drives the sub-gear (18) to rotate, thereby utilizing the meshing of the sub-gear (18) and the rack (19) to cause the sub-gear (18) to push the rack (19), causing the limiting bar (26) to slide in the limiting groove (27), thereby causing the rack (19) to push the limit block (20) to move; The four limiting blocks (20) are caused to synchronously approach the metal circular plate. At this time, the end face of the metal circular plate contacts the placement surface (21) of the limiting block (20) and gradually squeezes the rubber layer (25) on the inclined surface (22) of the limiting block (20) until it is completely fitted. Thus, the metal circular plate is limited in multiple directions by the four limiting blocks (20), preventing the metal circular plate from sliding and deflecting during stamping, thereby improving the stamping processing accuracy. After the notch of the diaphragm spring is stamped and formed, the stamping upper die is raised and the hydraulic push rod (11) is started, prompting the hydraulic push rod (11) to pull the movable column (12) downward; During the downward movement of the movable column (12), the push block (24) pushes the wall of the chute (13). Due to the spiral design of the chute (13), the movable column (12) rotates synchronously when it moves downward, so that the movable column (12) drives the swing arm (14) to rotate, prompting the electric push rod (15) and the electromagnetic plate (17) to approach the fixed seat (1). Then, the electric push rod (15) is started to push the electromagnetic plate (17) downward, so that the electromagnetic plate (17) contacts the stamped metal circular plate, and then the metal circular plate is attracted by the magnetic force of the electromagnetic plate (17). Then, the drive motor (10) is started to rotate the drive gear (5) in the opposite direction. The secondary gear (18) pushes the rack (19) in reverse, so that the multiple limit blocks (20) are synchronously moved away from the metal circular plate, and then the electric push rod (15) pulls up the electromagnetic plate (17) to complete the material removal, and then the hydraulic push rod (11) is started to push the movable column (12) upward, so that the movable column (12) drives the swing arm (14) to rotate away from the fixed seat (1), thereby completing the material unloading work. There is no need for workers to approach the processing area, avoiding the occurrence of safety accidents and improving the safety of use.

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