Punching die for a screw press

Abstract

The utility model belongs to the field of die for vertical press, concretely relates to a spiral press punching die, including main body platform, the bottom of main body platform is provided with steady assembly, the top of main body platform is provided with duplex device, duplex device includes electric lifting lever, the fixed end of electric lifting lever is fixedly connected on the top of main body platform, the telescopic end of electric lifting lever is fixedly connected with lifting plate, the bottom of lifting plate is fixedly connected with forming roll, the bottom of lifting plate is fixedly connected with punching roll, the top of main body platform is provided with fixed component. Fixed component includes hole slot, the hole slot is set up on the top of main body platform, is provided with ring clamp frame on the inner wall of hole slot. The utility model solves the problem that the conventional forging process is usually used as a single process for a device, the device utilization is low, the device investment is large, and the power cost is high, thereby improving the basic utilization of the device.

Description

Technical Field

[0001] This utility model belongs to the field of molds for vertical presses, specifically relating to a punching mold for a screw press. Background Technology

[0002] A screw press is a type of equipment commonly used in metal forming, stamping, and extrusion processes. It utilizes the power of a rotating screw to transmit pressure, thereby applying impact or pressure to the workpiece to achieve plastic forming of the metal. During operation, the screw shaft of the screw press rotates continuously, generating continuous pressure by driving the stamping die or core, thus deforming the material. A punching die is a specialized tool mounted on the press, primarily used for punching, cutting, or shaping workpieces.

[0003] Patent publication number CN219724298U discloses a punching and trimming composite mold for a vertical press, comprising an upper mold including an upper template, a punching upper mold, and a trimming upper mold, wherein the trimming upper mold is provided with a punch and a trimming cutter; and a lower mold including a lower template, a punching lower mold with a punching cavity, and a trimming space for accommodating the trimming upper mold; when in the punching and trimming position, the punching upper mold is located in the punching cavity, and the trimming upper mold is located in the trimming space. This patent designs a composite mold that performs punching and trimming processes simultaneously, completing both processes in one production cycle, greatly shortening production time, and ensuring product manufacturing accuracy by eliminating the need for repeated positioning.

[0004] However, the current composite die for punching and trimming of vertical presses has the following problems: In conventional forging processes, one machine can usually only be used for a single process, resulting in low equipment utilization, large equipment investment, and high electricity costs. Therefore, we propose a punching die for a spiral press. Utility Model Content

[0005] The purpose of this invention is to provide a punching die for a spiral press, which can solve the problems in the conventional forging process where one piece of equipment can usually only be used for a single process, resulting in low equipment utilization, large equipment investment, and high electricity costs.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A punching die for a screw press includes a main platform. A stabilizing component is provided at the bottom of the main platform, and a duplexing device is provided at the top of the main platform. The duplexing device includes an electric lifting rod, the fixed end of which is fixedly connected to the top of the main platform, and the telescopic end of which is fixedly connected to a lifting plate. A forming roller and a punching roller are fixedly connected to the bottom of the lifting plate, and a fixing component is provided at the top of the main platform.

[0008] The fixing component includes a slot, which is formed on the top of the main body. A ring clamping frame is provided on the inner wall of the slot, and a workpiece with a hole is placed on the inner wall of the ring clamping frame. A limiting groove is provided on the top of the main body, and a forming clamping frame is provided on the inner wall of the limiting groove, and a forming workpiece is placed on the inner wall of the forming clamping frame.

[0009] The stabilizing component includes a stabilizing base plate, the top of which is fixedly connected to the bottom of the main platform. A limiting groove is provided on the side of the main platform, and an outward-facing locking groove is fixedly connected to the top of the main platform.

[0010] The punching roller has a rough surface, and the forming roller is made of a high heat-resistant material.

[0011] The inner wall of the perforated workpiece is located on the movement trajectory of the outer wall of the punching roller, and the inner wall of the formed workpiece is located on the movement trajectory of the outer wall of the forming roller.

[0012] The top of the forming clamp is provided with a position limiting device, which includes a limiting hole. The limiting hole is opened on the top of the forming clamp. An elastic telescopic rod is fixedly connected to the outer wall of the forming roller. The telescopic end of the elastic telescopic rod is fixedly connected to a bottom arc block.

[0013] The bottom of the bottom arc block is curved, and the inner wall of the limiting hole is located on the movement trajectory of the bottom arc block.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention utilizes a dual-workstation design to coordinate the electric lifting rod, lifting plate, forming roller, punching roller, slot, ring clamp, perforated workpiece, limiting groove, forming clamp, and forming workpiece. The downward movement of the telescopic end of the electric lifting rod drives the lifting plate downward, which in turn drives the punching roller and forming roller downward simultaneously. This allows the forming roller to process the workpiece while the punching roller simultaneously perforates the workpiece, enabling the device to process two workpieces at the same time. This improves equipment utilization, transforming the original single-machine, single-station operation into a single-machine, dual-station operation, and reducing equipment investment.

[0016] This invention utilizes a position limiting device to coordinate the limiting hole, the elastic telescopic rod, and the bottom arc block. The downward movement of the forming roller causes the elastic telescopic rod to move downwards, which in turn causes the bottom arc block to move downwards. This downward movement of the bottom arc block brings its outer wall into close contact with the limiting hole, thus restricting its position. The elastic telescopic rod further restricts the overall position of the device through the bottom arc block. Even if the device becomes misaligned, the arc surface of the bottom arc block allows it to regain its position, ensuring the basic processing accuracy of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the limiting groove of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lifting plate of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the bottom arc-shaped locking block of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Main platform; 2. Stable component; 21. Stable base plate; 22. Limiting groove; 23. Outward slot; 3. Dual-working device; 31. Electric lifting rod; 32. Lifting plate; 33. Forming roller; 34. Punching roller; 35. Hole groove; 36. Ring clamping frame; 37. Opening workpiece; 38. Limiting groove; 39. Forming clamping frame; 310. Formed workpiece; 4. Position limiting device; 41. Limiting hole; 42. Elastic telescopic rod; 43. Bottom arc clamping block. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-5As shown, a screw press punching die includes a main table 1, a stabilizing component 2 at the bottom of the main table 1, and a double-working device 3 at the top of the main table 1. The double-working device 3 includes an electric lifting rod 31, the fixed end of which is fixedly connected to the top of the main table 1, and the telescopic end of which is fixedly connected to a lifting plate 32. A forming roller 33 and a punching roller 34 are fixedly connected to the bottom of the lifting plate 32. A fixing component is also provided at the top of the main table 1. In traditional machining or welding processes, commonly used fixing devices include fixtures, support frames, and chucks. Fixtures are generally used to precisely position and clamp workpieces to ensure accuracy during processing or operation. Support frames are used to support the weight of the workpiece and prevent deformation. Chucks are commonly used on lathes and other equipment to clamp workpieces by rotation.

[0026] The fixing component includes a slot 35, which is formed on the top of the main body 1. A ring clamping frame 36 is provided on the inner wall of the slot 35, and a perforated workpiece 37 is placed on the inner wall of the ring clamping frame 36. A limiting groove 38 is provided on the top of the main body 1, and a forming clamping frame 39 is provided on the inner wall of the limiting groove 38. A formed workpiece 310 is placed on the inner wall of the forming clamping frame 39. This is a basic analysis of the fixing component.

[0027] The stabilizing component 2 includes a stabilizing base plate 21, the top of which is fixedly connected to the bottom of the main body platform 1. A limiting groove 22 is opened on the side of the main body platform 1, and an outward-facing slot 23 is fixedly connected to the top of the main body platform 1. This is existing technology and will not be elaborated further.

[0028] The punching roller 34 has a roughened surface, and the forming roller 33 is made of a high-heat-resistant material. This type of material can maintain its physical and chemical properties at extremely high temperatures without structural changes or degradation, making it suitable for long-term use in high-temperature environments. High-heat-resistant materials are not easily affected by high temperatures, thermal cycling, or temperature differences, thus significantly extending the product's service life and reducing maintenance and replacement costs.

[0029] The inner wall of the perforated workpiece 37 is located on the movement trajectory of the outer wall of the punching roller 34, and the inner wall of the formed workpiece 310 is located on the movement trajectory of the outer wall of the forming roller 33. This is the necessary workpiece operation principle.

[0030] According to the above structure, before the processing begins, the operator first fixes the position of the stable base plate 21, and then restricts the position of the main body platform 1 through the limiting groove 22. Then, the operator places the perforated workpiece 37 in the ring clamping frame 36, and then places the formed workpiece 310 in the forming clamping frame 39. After the positions of the perforated workpiece 37 and the formed workpiece 310 are fixed, the operator opens the punching roller 34 and the forming roller 33 through external control, and then opens the electric lifting rod 31 through the external controller. This causes the telescopic end of the electric lifting rod 31 to move downward, driving the lifting plate 32 to move downward. The downward movement of the lifting plate 32 drives the punching roller 34 and the forming roller 33 to move downward simultaneously. This allows the forming roller 33 to perform forming processing on the formed workpiece 310, and at the same time, it allows the punching roller 34 to perform perforation processing on the perforated workpiece 37. This allows the device to process two workpieces simultaneously, improving the equipment utilization rate and realizing single-machine dual-station operation from the original single machine single station, reducing equipment investment.

[0031] like Figure 1-5 As shown, a position limiting device 4 is provided on the top of the forming clamp 39. The position limiting device 4 includes a limiting hole 41, which is opened on the top of the forming clamp 39. An elastic telescopic rod 42 is fixedly connected to the outer wall of the forming roller 33. A bottom arc block 43 is fixedly connected to the telescopic end of the elastic telescopic rod 42. The elastic telescopic rod 42 is composed of a fixed rod and a telescopic rod, as well as an elastic element installed between the fixed rod and the telescopic rod.

[0032] The bottom of the bottom arc-shaped locking block 43 is curved, and the inner wall of the limiting hole 41 is located on the movement trajectory of the bottom arc-shaped locking block 43. The curved bottom can distribute the pressure between the locking block and the contact surface more evenly, avoiding stress concentration at the contact point and reducing the risk of local wear and deformation. This is especially important when the locking block is subjected to high pressure or frequent impacts.

[0033] According to the above structure, the forming roller 33 moves downward, causing the elastic telescopic rod 42 to move downward. The elastic telescopic rod 42 moves downward, causing the bottom arc block 43 to move downward. The downward movement of the bottom arc block 43 causes its outer wall to come into close contact with the limiting hole 41, thereby restricting the position of the bottom arc block 43. This allows the elastic telescopic rod 42 to further restrict the position of the entire device through the bottom arc block 43. Even if the device becomes skewed, the arc surface characteristics of the bottom arc block 43 can restore its position, thereby ensuring the basic processing accuracy of the device.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A punching die for a screw press, comprising a main platform (1), wherein a stabilizing component (2) is provided at the bottom of the main platform (1), characterized in that: The top of the main platform (1) is provided with a duplex device (3), which includes an electric lifting rod (31). The fixed end of the electric lifting rod (31) is fixedly connected to the top of the main platform (1). The telescopic end of the electric lifting rod (31) is fixedly connected to a lifting plate (32). The bottom of the lifting plate (32) is fixedly connected to a forming roller (33). The bottom of the lifting plate (32) is fixedly connected to a punching roller (34). The top of the main platform (1) is provided with a fixing component.

2. The screw press punching die according to claim 1, characterized in that: The fixing component includes a slot (35) which is formed on the top of the main body platform (1). A ring clamping frame (36) is provided on the inner wall of the slot (35). A perforated workpiece (37) is placed on the inner wall of the ring clamping frame (36). A limiting groove (38) is provided on the top of the main body platform (1). A forming clamping frame (39) is provided on the inner wall of the limiting groove (38). A formed workpiece (310) is placed on the inner wall of the forming clamping frame (39).

3. The punching die for a screw press according to claim 1, characterized in that: The stabilizing component (2) includes a stabilizing base plate (21), the top of which is fixedly connected to the bottom of the main body platform (1). A limiting groove (22) is provided on the side of the main body platform (1), and an outward-facing slot (23) is fixedly connected to the top of the main body platform (1).

4. The punching die for a screw press according to claim 1, characterized in that: The surface of the punching roller (34) is roughened, and the material of the forming roller (33) is a high heat-resistant material.

5. A punching die for a screw press according to claim 2, characterized in that: The inner wall of the perforated workpiece (37) is located on the motion trajectory of the outer wall of the punching roller (34), and the inner wall of the formed workpiece (310) is located on the motion trajectory of the outer wall of the forming roller (33).

6. A punching die for a screw press according to claim 2, characterized in that: The top of the forming clamp (39) is provided with a position limiting device (4), the position limiting device (4) includes a limiting hole (41), the limiting hole (41) is opened on the top of the forming clamp (39), and an elastic telescopic rod (42) is fixedly connected to the outer wall of the forming roller (33), and a bottom arc block (43) is fixedly connected to the telescopic end of the elastic telescopic rod (42).

7. A punching die for a screw press according to claim 6, characterized in that: The bottom of the bottom arc block (43) is set with an arc surface, and the inner wall of the limiting hole (41) is located on the movement trajectory of the bottom arc block (43).

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