Double-station forging die

Abstract

The utility model discloses a double-station forging die which comprises an upper die plate, two guide sleeves fixedly connected to the upper die plate, a lower die plate and two guide columns fixedly connected to the lower die plate. Two lower die bases are fixedly arranged on the lower die plate, stepped holes are formed in the two lower die bases, ejector rods are arranged on the lower sections of the two stepped holes, two lower die cores are arranged on steps of the upper sections of the stepped holes respectively, die cavities of the lower die cores are cylindrical through holes, and cushion blocks are arranged in the stepped holes below the lower die cores through the steps. The die cavity of the other lower die core is an upper side conical hole and a lower side cylindrical hole which are connected with each other; the upper die plate is fixedly connected with two upper dies, the two upper dies are coaxial with respective lower die cores, and the lower end of one upper die is provided with a blind hole corresponding to the conical hole in the upper side; according to the die, two times of forging forming can be completed at the same time, cost can be reduced, machining efficiency can be improved, the rate of finished products is guaranteed, universality of the die is improved, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to a forging die, and more particularly to a dual-station forging die. Background Technology

[0002] The steel feet used for insulators are mostly processed by local heating and forging. The cones need to be forged twice. Currently, two sets of special forging dies are required for forming, which is not only costly and inefficient, but also results in a high precision fit between the workpiece and the lower die core. During the feeding process, jamming and misalignment are easy to occur and are difficult to detect, leading to a certain scrap rate. The versatility of the dies is also poor, affecting their use. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned shortcomings of the existing technology by providing a dual-station forging die that can simultaneously complete two forging processes. This not only reduces costs and improves processing efficiency but also ensures a high yield, enhances the versatility of the die, and expands its application range.

[0004] To achieve the above objectives, this utility model provides a dual-station forging die, comprising an upper template and two guide sleeves fixed to the upper template, a lower template and two guide pillars fixed to the lower template; characterized in that two lower die bases are fixed on the lower template, each lower die base has a stepped hole, and the lower section of each stepped hole has a push rod, and two lower die cores are placed on the steps of the upper section of their respective stepped holes, the die cavity of one lower die core is a cylindrical through hole, and a pad is provided in the stepped hole below the lower die core through the step; the die cavity of the other lower die core is a connected upper conical hole and a lower cylindrical hole; the upper template is fixed with two upper dies, the two upper dies are coaxial with their respective lower die cores, and the lower end of one upper die has a groove corresponding to the upper conical hole.

[0005] During operation, two workpieces are placed in the two lower mold cores simultaneously. The lower end of one workpiece contacts the pad block. The upper template drives the two upper molds to move downwards, completing the pre-upsetting and cone-shaped forming of the two workpieces respectively. The formed workpieces can be demolded through the two ejector rods. This mold can complete two forging processes simultaneously, thereby reducing costs and improving processing efficiency.

[0006] As a preferred embodiment of this utility model, the stepped holes of the lower mold base below the lower mold core are all connected to radial detection holes, and each detection hole is equipped with a proximity switch or photoelectric sensor; this can detect whether the workpiece is fed into place when passing the lower mold core, thereby avoiding scrap and improving the yield rate.

[0007] As a preferred embodiment of this utility model, a pad is provided in the stepped hole below the other lower mold core through a step; this facilitates the demolding of the workpiece inside.

[0008] As a preferred embodiment of this utility model, both lower mold cores are provided with shoulders on their outer circumferences, and lower mold covers are fixedly connected to the steps of both lower mold bases. The lower ends of the lower mold covers are engaged with the shoulders of their respective lower mold cores; this facilitates the replacement of the lower mold cores and improves versatility.

[0009] As a preferred embodiment of this utility model, each of the two upper molds is provided with an upper mold pad block fixedly connected to the upper template on its upper side, and each of the two upper molds is provided with an upper mold cover fixedly connected to the upper template on its outer side. The upper mold cover and its respective upper mold are provided with a step that engages with each other; this facilitates the installation and replacement of the upper mold core, improves versatility, and expands the scope of application.

[0010] In summary, this utility model can complete two forging processes simultaneously, which not only reduces costs and improves processing efficiency, but also ensures the yield rate, improves the versatility of the mold, and expands the scope of application. Attached Figure Description

[0011] Figure 1 This is a front view of an embodiment of the present utility model.

[0012] Figure 2 for Figure 1 The left view.

[0013] Figure 3 for Figure 2 AA sectional view.

[0014] Figure 4 This is a front view of the working state of an embodiment of this utility model. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] like Figures 1 to 3 As shown, a dual-station forging die of this embodiment includes an upper template 1 and two guide sleeves 2 fixed to the upper template, a lower template 3 and two guide pillars 4 fixed to the lower template; two lower die bases 5 and 6 are fixed on the lower template 3, each of the two lower die bases 5 and 6 is provided with a stepped hole, and each of the lower sections of the two stepped holes is provided with a push rod 7 or 8; two lower die cores 9 and 10 are placed on the steps of the upper section of their respective stepped holes, and each of the two lower die cores 9 and 10 is provided with a shoulder on its outer circle; each of the two lower die bases 5 and 6 is fixed with a lower die cover 11 or 12 by screws in the stepped section, and the lower ends of the lower die covers 11 and 12 are engaged with the shoulders of their respective lower die cores 9 or 10;

[0017] The cavity of the lower mold core 9 is a cylindrical through hole, and a pad 13 is provided in the stepped hole below the lower mold core 9 through a step; the cavity of the other lower mold core 10 is a connected upper conical hole and a lower cylindrical hole, and a pad 14 is also provided in the stepped hole below the lower mold core 10 through a step; the stepped holes of the lower mold bases below the two lower mold cores 9 and 10 are all connected to radial detection holes, and each detection hole is equipped with a proximity switch 15; the upper mold plate 1 is connected to the two upper mold pads 16 and 17 and the upper mold pressing... Covers 18 and 19 are fixedly connected to the two upper molds 21 and 22. The upper mold pads 16 or 17 on the upper side of the two upper molds 21 and 22 are fixedly connected to the upper template 1 by several screws. The upper mold covers 18 and 19 are located on the outside of the two upper molds 21 or 22 and are fixedly connected to the upper template 1 by screws. The upper mold covers and their respective upper molds have interlocking steps. The two upper molds 21 and 22 are coaxial with their respective lower mold cores 9 or 10. The lower end of the upper mold 22 is provided with a groove 20 corresponding to the upper tapered hole.

[0018] During operation, the upper die plate 1 is connected to the slide block of the punch press, the lower die plate 3 is connected to the base 23, and the ejector rod 7 or 8 is placed in the inner hole of the base 23. Each ejector rod 7 or 8 has an elastic rubber pad 28 in its inner hole below it, or the lower end of the ejector rod 7 or 8 is connected to the cylinder. The lower die core 9, in conjunction with the upper die 21, can achieve pre-upsetting of the workpiece; the lower die core 10, in conjunction with the upper die 22, can achieve the cone-shaped forming of the pre-upset workpiece. During processing, such as... Figure 4 As shown, after the upper end of the original bar workpiece 26 is heated, it is placed in the lower die core 9, and its lower end contacts the pad block 13. The pre-upsetting workpiece 27 is placed in the lower die core 10. The upper template 1 drives the two upper dies 21 and 22 to move downward, respectively completing the pre-upsetting and cone forming of the two workpieces. The groove 20 can ensure that the cone forming is regular. Afterwards, the upper template 1 moves upward, the compressed elastic pad 28 is reset, and the two formed workpieces can be demolded through the two ejector rods 7 and 8. This mold can complete two forgings at the same time, thereby reducing costs and improving processing efficiency.

[0019] The proximity switch 15 can detect whether the workpiece is fed into place when it passes the lower mold core, which can avoid scrap, improve the yield, and can also be used in conjunction with articulated robots to realize automatic feeding; the proximity switch 15 can also be replaced by a photoelectric sensor;

[0020] The two pads 13 and 14 facilitate demolding of the workpiece inside. By replacing the pad 13, pre-upsetting of original bar workpieces 26 of different lengths can be performed. The lower mold cover 11 and 12 facilitate the replacement of the two lower mold cores. The two upper mold pads 16 and 17 and the upper mold cover 18 and 19 facilitate the installation and replacement of the two upper mold cores, thereby improving versatility and expanding the scope of application.

Claims

1. A dual-station forging die, comprising an upper die plate and two guide sleeves fixedly connected to the upper die plate, a lower die plate and two guide pillars fixedly connected to the lower die plate; characterized in that... Two lower mold bases are fixed on the lower template. Each lower mold base has a stepped hole. The lower section of each stepped hole has a push rod. The two lower mold cores are placed on the steps of the upper section of their respective stepped holes. The mold cavity of one lower mold core is a cylindrical through hole. A pad is provided in the stepped hole below the lower mold core through the step. The mold cavity of the other lower mold core is a connected upper conical hole and a lower cylindrical hole. Two upper molds are fixed on the upper template. The two upper molds are coaxial with their respective lower mold cores. The lower end of one upper mold has a groove corresponding to the upper conical hole.

2. The dual-station forging die according to claim 1, characterized in that: The stepped holes of the lower mold base below the lower mold core are all connected to radial detection holes, and each detection hole is equipped with a proximity switch or photoelectric sensor.

3. A dual-station forging die according to claim 1 or 2, characterized in that: A pad is provided in the stepped hole below the other lower mold core through a step.

4. A dual-station forging die according to claim 3, characterized in that: Both lower mold cores have shoulders on their outer circumferences, and lower mold covers are fixedly connected to the steps of both lower mold bases. The lower ends of the lower mold covers are engaged with the shoulders of their respective lower mold cores.

5. A dual-station forging die according to claim 4, characterized in that: Both upper molds are provided with upper mold pads fixed to the upper template on their upper sides, and both upper molds are provided with upper mold covers fixed to the upper template on their outer sides. The upper mold covers and their respective upper molds are provided with steps that interlock.

Images