A gasket stamping die

Abstract

The application discloses a sealing gasket stamping die and belongs to the technical field of stamping dies. Mainly comprising a box body, a die is arranged on the box body, the die comprises an upper die seat, a male die arranged at the lower end of the upper die seat, and a lower die matched with the male die, and an anti-warping assembly is arranged at the upper end of the box body, the anti-warping assembly comprises a fixing seat arranged at one side of the upper end of the box body, a second air cylinder is arranged on the fixing seat, a positioning frame is arranged at the output end of the second air cylinder, a pressing arm is arranged at the two sides of the positioning frame, and a pressing plate is arranged at the two sides of the pressing arm. The sealing gasket stamping die is provided with the anti-warping assembly linked by the fixing seat, the driving element, the pressing frame and the pressing plate, the edge of the workpiece can be actively pressed before stamping, material warping deformation can be effectively inhibited, and the effects of ensuring the high flatness of the sealing gasket and the stamping precision are achieved.

Description

Technical Field

[0001] This application relates to the field of stamping die technology, specifically a stamping die for a sealing gasket. Background Technology

[0002] Gaskets are essential sealing elements in mechanical equipment, widely used in many industrial fields such as automotive, petrochemical, and aerospace. They are typically formed by stamping metal or non-metal sheets using stamping dies. Sealing gasket stamping dies are usually fixedly installed on the worktable of a press. Through the coordinated action of the upper die (punch) and the lower die (concave die), the plate blank placed on the lower die is stamped to form a sealing gasket product of the required shape and size in one step. For example, the patent with publication number CN221414615U discloses a multi-station stamping die for processing automotive cylinder sealing gaskets. This patent allows the material to pass through multiple stations in sequence, such as punching, piercing, punching and stretching, stretching, blanking and cutting off the end material. In continuous feeding, the stamping operations of guiding hole punching, inner hole punching, stretching and forming, outer shape punching and waste separation are gradually completed.

[0003] However, during the stamping process, when the punch contacts and presses into the material, it applies a downward tensile force to the material. If the material is not fully compressed, its edges or center will arch due to the stretching, resulting in warping. Once warping occurs during the stamping process, the flatness of the stamped sealing gasket will be out of tolerance, making it unable to fit tightly with the connecting surface, leading to sealing failure and leakage.

[0004] Therefore, it is necessary to provide a sealing gasket stamping die to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a sealing gasket stamping die that solves the problem of warping deformation of the workpiece caused by stress release, material flow and other factors during the stamping process.

[0007] The technical solution adopted by this application to solve its technical problem is: a sealing gasket stamping die, comprising: A box body, on which a mold is provided, the mold including an upper mold base, a punch disposed at the lower end of the upper mold base, and a lower mold that cooperates with the punch; Anti-warping component, which is disposed at the upper end of the housing, includes: The fixing base is located on one side of the upper end of the housing; The second cylinder is mounted on the fixed base; A positioning frame is disposed at the output end of the second cylinder; Pressure arms are disposed on both sides of the positioning frame; A pressure plate is disposed at the front end of the pressure arm.

[0008] Furthermore, a support head is provided on one side of the fixing base.

[0009] Furthermore, a position sensor is provided on the bearing head.

[0010] Furthermore, a sliding sleeve is provided at the upper end of the box body on both sides of the fixed base, and a sliding column is slidably disposed on the sliding sleeve, with the top end of the sliding column being fixedly connected to the positioning frame.

[0011] Furthermore, a rubber sleeve is provided at the bottom end of the pressure plate.

[0012] The beneficial effects of this application are: the sealing gasket stamping die provided by this application, by setting an anti-warping component consisting of a fixed seat, a driving component, a clamping frame and a pressure plate, achieves the effect of actively clamping the edge of the workpiece before stamping and effectively suppressing the warping deformation of the material, thereby ensuring the high flatness and stamping accuracy of the sealing gasket.

[0013] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of a gasket stamping die according to this application; Figure 2 for Figure 1 A schematic diagram of A in the middle; Figure 3 This is a partial schematic diagram of a gasket stamping die according to this application; Figure 4 for Figure 3 A schematic diagram of B in the middle; The following are the labeling elements in the figure: 1. Housing; 2. Stamping mechanism; 20. Fixing frame; 21. Guide post; 22. Sliding plate; 24. Mold; 240. Upper mold base; 241. Punch; 242. Lower mold; 25. Outlet hole; 26. Receiving box; 27. First cylinder; 3. Positioning mechanism; 30. Electric cylinder; 31. Slide rail; 32. Slider; 33. Crossbeam; 34. Mounting plate; 340. Through hole; 35. Anti-warping component; 350. Sliding post; 351. Positioning frame; 352. Pressure arm; 353. Sliding sleeve; 354. Pressure plate; 355. Support head; 356. Fixing seat; 357. Second cylinder. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] like Figures 1-4 As shown, the present application provides a sealing gasket stamping die, which is mainly installed on stamping equipment or automated production line and is used to stamp metal or non-metal sheets into sealing gasket parts. Specifically, the stamping die includes a housing 1 and a stamping mechanism 2 provided at the upper end of the housing 1. The stamping mechanism 2 includes a fixed frame 20 fixedly provided at the middle of the upper end of the housing 1, and a first cylinder 27 fixedly provided at the upper end of the fixed frame 20. At the same time, two guide posts 21 are symmetrically fixedly provided on both sides of the lower end of the fixed frame 20, and a sliding plate 22 is slidably sleeved on the guide posts 21. After the output end of the first cylinder 27 penetrates the fixed frame 20 vertically downward, its end is fixedly connected to the center of the upper surface of the sliding plate 22. When the first cylinder 27 is activated, it can directly and smoothly drive the sliding plate 22 to move up and down along the vertical trajectory defined by the two guide posts 21, so as to facilitate subsequent stamping operations. It should be noted that, in order to collect the finished workpieces after stamping, an outlet hole 25 is provided on the upper end face of the box 1 and located directly below the sliding plate 22, and a receiving box 26 is provided inside the box 1 below the outlet hole 25 for receiving the workpieces. Furthermore, a positioning mechanism 3 is provided inside the housing 1. The positioning mechanism 3 includes an electric cylinder 30 fixedly installed on one side inside the housing 1. At the same time, two slide rails 31 are provided at the upper end of the housing 1 and on both sides of the outlet hole 25. A slider 32 is slidably installed on each slide rail 31. A crossbeam 33 is fixedly mounted between the two sliders 32. The output end of the electric cylinder 30 is fixedly connected to the side of the crossbeam 33. The crossbeam 33 passes upward through the outlet hole 25 and extends to the upper surface of the housing 1. An mounting plate 34 is fixedly installed at the upper end of the crossbeam 33. Thus, when the electric cylinder 30 is activated, it can drive the crossbeam 33 to move the mounting plate 34 horizontally along the direction of the slide rails 31 on the upper surface of the housing 1. Furthermore, a mold 24 is provided between the sliding plate 22 and the housing 1. Specifically, the mold 24 includes an upper mold base 240 fixedly installed at the lower end of the sliding plate 22, and a punch 241 fixedly installed at the lower end of the upper mold base 240. Correspondingly, a lower mold 242 that cooperates with the punch 241 is fixedly installed on the mounting plate 34. In order to ensure that the stamped workpiece can be smoothly removed, a through hole 340 corresponding to the mold cavity of the lower mold 242 is also provided on the mounting plate 34. Thus, the stamped workpiece can fall from the mold cavity, pass through the through hole 340 and the outlet hole 25 below it in sequence, and finally fall into the receiving box 26. Therefore, when a stamping operation is required, the operator first places the plate-shaped workpiece to be stamped on the surface of the lower die 242. Then, the electric cylinder 30 is started, which drives the crossbeam 33 and the mounting plate 34, causing the lower die 242 carrying the workpiece to move horizontally until it reaches the stamping station, that is, directly below the punch 241. At this time, the first cylinder 27 is activated, and the first cylinder 27 pushes the sliding plate 22 down along the guide post 21, thereby driving the upper mold base 240 and the punch 241 to move downward to stamp the workpiece. After the stamping is completed, the first cylinder 27 pulls the upper mold to reset, and the formed sealing gasket workpiece falls out of the mold cavity of the lower mold 242 under the action of gravity, and is finally collected in the receiving box 26 through the through hole 340 and the outlet hole 25. To prevent workpiece warping during the stamping process, such as Figures 3-4 As shown, an anti-warping component 35 is provided at the upper end of the housing 1. The anti-warping component 35 includes a fixed seat 356 fixedly installed on one side of the upper end of the housing 1, and a support head 355 is provided on the side of the fixed seat 356 facing the moving direction of the mounting plate 34. The end of the support head 355 is integrated with a position sensor to detect whether the mounting plate 34 has moved the lower die 242 and the workpiece to the preset stamping position. Meanwhile, a sliding sleeve 353 is fixedly installed on both sides of the housing 1 and the fixed base 356, and a sliding column 350 is slidably installed in each sliding sleeve 353. A positioning frame 351 is fixedly installed at the top of the two sliding columns 350. The size of the positioning frame 351 matches the size of the mounting plate 34 so as to facilitate the subsequent positioning of the edge of the mounting plate 34. Furthermore, a second cylinder 357 is fixedly installed on the fixed base 356. The output end of the second cylinder 357 is fixedly connected to the outside of the positioning frame 351. Thus, by activating the second cylinder 357, the positioning frame 351 can be driven to push the two sliding columns 350 to slide vertically along the sliding sleeve 353, thereby realizing the overall movement of the positioning frame 351 closer to or further away from the mounting plate 34, preparing for subsequent pre-pressing operations. Meanwhile, pressure arms 352 are provided on both sides of the positioning frame 351. Pressure plates 354 are installed at the front end of each pressure arm 352, and rubber sleeves are provided at the bottom of the pressure plates 354 to prevent scratching the workpiece surface during subsequent pressing operations. The position of the pressure plates 354 is set so that when the mounting plate 34 touches the holding head 355, it can be aligned with the outer edge area of ​​the workpiece on the lower mold 242. Thus, before the stamping operation begins, when the electric cylinder 30 drives the mounting plate 34 to move the lower die 242 and the workpiece toward the stamping station, one side of the mounting plate 34 will eventually contact the abutment head 355. The sensor on the abutment head 355 will then detect the signal that it has been positioned and transmit this signal to the control system. After the control system confirms that the mounting plate 34 has been accurately positioned; The second cylinder 357 can then be activated, which drives the positioning frame 351 to move downward as a whole, causing the sliding column 350 to slide vertically down along the sliding sleeve 353, thereby pushing the pressure arms 352 fixed on both sides of the positioning frame 351 and the pressure plate 354 at its front end to move downward synchronously, so that the two pressure plates 354 press firmly against the left and right edge areas of the workpiece on the lower mold 242 with sufficient pressure. After this pre-pressing action is completed and the workpiece is completely fixed; At this time, the control system issues a command to start the first cylinder 27 to perform stamping. Thus, throughout the stamping process, the pressure plate 354 always maintains the clamping force on the edge of the workpiece, effectively offsetting the stress that causes the workpiece to warp during punching, and fundamentally preventing the occurrence of edge warping. After the stamping is completed, the first cylinder 27 drives the punch 241 to return first, then the second cylinder 357 drives the anti-warping component to reset, and finally the electric cylinder 30 moves the mounting plate 34 back to the loading station to complete a complete work cycle.

[0018] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stamping die for a sealing gasket, characterized in that: include: Box (1), on which a mold (24) is provided, the mold (24) includes an upper mold base (240), a punch (241) disposed at the lower end of the upper mold base (240), and a lower mold (242) that cooperates with the punch (241). Anti-warping component (35), which is disposed at the upper end of the housing (1), the anti-warping component (35) includes: A fixing seat (356) is provided on one side of the upper end of the housing (1); The second cylinder (357) is mounted on the fixed base (356); Positioning frame (351) is disposed at the output end of the second cylinder (357); Pressure arms (352) are disposed on both sides of the positioning frame (351); A pressure plate (354) is disposed at the front end of the pressure arm (352).

2. The sealing gasket stamping die according to claim 1, characterized in that: A support head (355) is provided on one side of the fixing seat (356).

3. The sealing gasket stamping die according to claim 2, characterized in that: A position sensor is provided on the abutment head (355).

4. The sealing gasket stamping die according to claim 1, characterized in that: The upper end of the housing (1) is provided with a sliding sleeve (353) located on both sides of the fixed seat (356). A sliding column (350) is slidably provided on the sliding sleeve (353), and the top of the sliding column (350) is fixedly connected to the positioning frame (351).

5. A sealing gasket stamping die according to claim 1, characterized in that: A rubber sleeve is provided at the bottom end of the pressure plate (354).

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