Abrasion-resistant sleeve stamping tool for ensuring material stripping

Abstract

The utility model relates to a kind of guarantee wear-resistant sleeve stamping frock of stripping, and the technical scheme used includes lower die base, the lower die base is provided with lower die column, the lower die column top is provided with positioning head, the lower die base is further connected with stripping plate by compression spring, the stripping plate is provided with stripping seat slidingly connected with the lower die column;The positioning head slidingly connects with material loading platform;The material loading platform is also opposite sliding with the stripping seat, the outer wall of the material loading platform towards the stripping seat is provided with ratchet bar, the stripping seat slidingly connects with the pawl engaged with the ratchet bar, and the pawl is also provided with compression spring between the stripping seat.The stripping seat can only be unidirectionally slid to the direction of lower die base relative to material loading platform in the utility model, does not affect stamping operation, and stripping seat synchronously pushes material loading platform to move up when stripping first wear-resistant sleeve is stripped out positioning head, and successful stripping is realized.

Description

Technical Field

[0001] This utility model relates to the field of stamping tooling technology, and in particular to a wear-resistant stamping tooling for ensuring material removal. Background Technology

[0002] A certain type of mixing tank has a through hole at the bottom. During the production process, two wear-resistant sleeves need to be installed at both ends of the through hole to enhance its wear resistance. In order to reduce labor intensity and increase production efficiency, the applicant uses a stamping fixture to install the two wear-resistant sleeves. The fixture includes a lower die post and a stripper seat that is slidably connected to the lower die post. During stamping, the first wear-resistant sleeve, the mixing tank, and the second wear-resistant sleeve are sequentially clamped onto the lower die post and stamped as a whole. Then, the stripper seat acts on the side wall of the through hole of the mixing tank to push the mixing tank out of the lower die post. However, in the trial production, the first wear-resistant sleeve may still be stuck on the lower die post and cannot be successfully stripped with the mixing tank. Utility Model Content

[0003] To address the problem that the first wear-resistant sleeve cannot be successfully ejected in existing technical solutions, this utility model provides a stamping fixture for wear-resistant sleeves that ensures material ejection.

[0004] This utility model provides the following technical solution: a wear-resistant stamping fixture for ensuring material stripping, including a lower die base, the lower die base is provided with a lower die column, the top of the lower die column is provided with a positioning head, the lower die base is also connected to a stripper plate through a compression spring, and the stripper plate is provided with a stripper seat that is slidably connected to the lower die column;

[0005] The positioning head is slidably connected to a material carrier platform, and the positioning head is also provided with a guide rail extending in the axial direction. The material carrier platform is provided with a slide groove that is slidably connected to the guide rail.

[0006] The loading platform also slides relative to the stripper seat. The outer wall of the loading platform facing the stripper seat is provided with a ratchet rack extending in the axial direction. The stripper seat is slidably connected with a pawl that meshes with the ratchet rack. A compression spring is also provided between the pawl and the stripper seat. The pawl is also provided with a connecting rod that is slidably connected to the stripper seat. The connecting rod protrudes from the stripper seat and is provided with a lever. The stripper seat can only slide unidirectionally relative to the loading platform towards the lower mold base. The lower mold base is also provided with multiple guide posts that slide relative to the stripper plate.

[0007] Preferably, the outer wall of the loading platform is provided with a plurality of toothed grooves extending sequentially along the axial direction, and the plurality of toothed grooves are connected to form the ratchet.

[0008] Preferably, the two ratchet racks are symmetrical about the central axis of the loading platform.

[0009] Preferably, the stripper plate is further provided with an annular groove along its edge.

[0010] Preferably, it further includes an upper mold base, with multiple guide pillars disposed between the upper mold base and the lower mold base. The upper mold base is equipped with a cylinder, and the guide pillars are slidably connected to an upper clamping plate. The upper clamping plate is connected to the piston rod of the cylinder, and the upper clamping plate is equipped with a punch. The side of the punch facing the lower mold base is provided with a positioning groove so that one end of the punch forms an annular shape. The positioning groove cooperates with the positioning head.

[0011] The beneficial effects of this utility model are: the stripper can only slide unidirectionally relative to the material carrier in the direction of the downward die base, which does not affect the stamping operation, and during stripping, the stripper synchronously pushes the material carrier to move up and remove the first wear-resistant sleeve from the positioning head, thus achieving smooth stripping. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of one embodiment of a stamping fixture.

[0013] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0014] Figure 3 This is a front view of one embodiment of a stamping fixture.

[0015] Reference numerals: 11. Lower die base; 12. Lower die pillar; 13. Positioning head; 14. Compression spring; 15. Stripper plate; 151. Annular groove; 16. Stripper seat; 161. Pawl; 162. Compression spring; 163. Lever; 17. Carrying platform; 171. Ratchet; 18. Guide pillar; 21. Upper die base; 22. Guide pillar; 23. Cylinder; 24. Upper clamping plate; 25. Punch; 30. Mixing tank; 31a. First wear-resistant sleeve; 31b. Second wear-resistant sleeve. Detailed Implementation

[0016] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0017] This utility model provides, for example Figure 1-3 The wear-resistant stamping fixture shown includes a lower die holder 11 and an upper die holder 21 to ensure material removal.

[0018] The lower mold base 11 is provided with a lower mold column 12, and a positioning head 13 is provided on the top of the lower mold column 12. The diameter of the positioning head 13 is smaller than that of the lower mold column 12, forming a stepped structure. The lower mold base 11 is also connected to a stripper plate 15 through a compression spring 14. The stripper plate 15 is provided with a stripper seat 16, and both are slidably connected to the lower mold column 12. The positioning head 13 fits with the bottom through hole of the mixing tank 30 with a gap between them. The first wear-resistant sleeve 31a and the second wear-resistant sleeve 31b are respectively inserted into the two ends of the gap. The stripper plate 15 has an annular groove 151 on its edge to support the top edge of the mixing tank. After the mixing tank 30 is inserted into the positioning head 13, its through hole sidewall contacts the lower mold column 12, and its top edge contacts the annular groove 151. During stamping, the mixing tank 30 moves up and down as a whole with the stripper plate 15 to avoid excessive local stress that could damage the mixing tank.

[0019] In this embodiment, the positioning head 13 is also slidably connected to a material carrier 17 for supporting the first wear-resistant sleeve 31a. The material carrier 17 is also slidably oriented relative to the stripper seat 16. Two ratchet racks 171 extending axially are provided on the outer wall of the material carrier 17 facing the stripper seat 16, and the two ratchet racks are symmetrical about the central axis of the material carrier. The stripper seat 16 is slidably connected to a pawl 161 that engages with the ratchet racks 171. A compression spring 162 is also provided between the pawl 161 and the stripper seat 16, allowing the stripper seat 16 to slide only unidirectionally towards the downward mold base relative to the material carrier 17. The pawl 161 is also provided with a connecting rod slidably connected to the stripper seat 16. The connecting rod protrudes from the stripper seat 16 and is provided with a lever 163, which pulls the lever 163 to disengage the pawl 161 from the ratchet racks 171. Specifically, the outer wall of the material carrier 17 is provided with multiple toothed grooves extending sequentially axially, and the multiple toothed grooves are connected to form the ratchet racks 171.

[0020] Furthermore, the positioning head 13 is also provided with a guide rail extending in the axial direction, and the loading platform 17 is provided with a slide groove that slides in connection with the guide rail to prevent the loading platform 17 from rotating relative to the positioning head 13; the guide rail and slide groove can be compared with a spline and its keyway. The lower die base 11 is also provided with multiple guide posts 18 that slide relative to the stripper plate 15 to prevent the stripper plate 15, the stripper seat 16 and the loading platform 17 from rotating relative to each other, and to prevent the ratchet rack 171 from accidentally disengaging from the pawl 161 due to rotation during operation.

[0021] Before stamping, the compression spring 14 is reset, and the stripper seat 16 is at its highest point; the first wear-resistant sleeve 31a, the mixing tank 30, and the second wear-resistant sleeve 31b are sequentially clamped onto the positioning head 13, and then stamping is performed; during the stamping process, the punch presses the mixing tank 30, the stripper seat 16, and the stripper plate 15 downwards until the two wear-resistant sleeves are pressed into the through hole of the mixing tank 30, as shown. Figure 2As shown; after the punch is reset, the compression spring 14 drives the mixing tank 30, the unloading seat 16, and the unloading plate 15 to move upward and disengage from the positioning head 13. At the same time, the unloading seat 16 pushes the loading platform 17 upward through the pawl 161, pushing the first wear-resistant sleeve 31a to move synchronously with the mixing tank 30, completely preventing the first wear-resistant sleeve 31a from getting stuck on the positioning head 13. After the mixing tank is removed, the lever 163 is moved to make the loading platform 17 move downward and reset.

[0022] This embodiment also includes an upper mold base 21. Multiple guide pillars 22 are provided between the upper mold base 21 and the lower mold base 11. The upper mold base 21 is equipped with a cylinder 23. The guide pillars 22 are slidably connected to an upper clamping plate 24. The upper clamping plate 24 is connected to the piston rod of the cylinder 23. The upper clamping plate 24 is equipped with a punch 25. The side of the punch 25 facing the lower mold base 11 is provided with a positioning groove so that one end of the punch 25 forms an annular shape. The positioning groove cooperates with the positioning head 13 to complete the stamping of the wear-resistant sleeve.

[0023] The above describes one or more embodiments of this utility model in a relatively specific and detailed manner, but it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wear-resistant stamping fixture for ensuring material removal, comprising a lower die base, wherein the lower die base is provided with a lower die post, a positioning head is provided at the top of the lower die post, and the lower die base is further connected to a stripper plate via a compression spring, the stripper plate being provided with a stripper seat slidably connected to the lower die post, characterized in that: The positioning head is slidably connected to a material carrier platform, and the positioning head is also provided with a guide rail extending in the axial direction. The material carrier platform is provided with a slide groove that is slidably connected to the guide rail. The loading platform also slides relative to the stripper seat. The outer wall of the loading platform facing the stripper seat is provided with a ratchet rack extending in the axial direction. The stripper seat is slidably connected with a pawl that meshes with the ratchet rack. A compression spring is also provided between the pawl and the stripper seat. The pawl is also provided with a connecting rod that is slidably connected to the stripper seat. The connecting rod protrudes from the stripper seat and is provided with a lever. The stripper seat can only slide unidirectionally relative to the loading platform towards the lower mold base. The lower mold base is also provided with multiple guide posts that slide relative to the stripper plate.

2. The wear sleeve press tooling with a safety stripper according to claim 1, wherein, The outer wall of the loading platform is provided with a plurality of toothed grooves extending sequentially along the axial direction, and the plurality of toothed grooves are connected to form the ratchet.

3. The wear sleeve press tooling with a safety stripper as defined in claim 1, wherein, The two ratchet racks are symmetrical about the central axis of the loading platform.

4. The wear sleeve press tooling with a safety stripper according to claim 1, wherein, The stripping plate is also provided with an annular groove along its edge.

5. The wear sleeve press tooling with a safety stripper as defined in claim 1, wherein, It also includes an upper mold base, with multiple guide pillars arranged between the upper mold base and the lower mold base. The upper mold base is equipped with a cylinder, and the guide pillars are slidably connected to an upper clamping plate. The upper clamping plate is connected to the piston rod of the cylinder, and the upper clamping plate is equipped with a punch. The side of the punch facing the lower mold base is provided with a positioning groove so that one end of the punch forms a ring shape. The positioning groove cooperates with the positioning head.

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