An adjustable outside positioning die-cutting die

Abstract

The utility model discloses an adjustable formula outside positioning's die -cutting die, include: lower die seat, the top fixed connection of lower die seat has two high -rise blocks, and the top fixed connection of two high -rise blocks has lower die plate, and one end fixed connection of lower die plate has the trimming knife block, and the side of lower die plate is provided with movable guide rail, and the movable guide rail inside sliding connection has two square nuts, and one end fixed connection of lower die plate has the backing pad, and the side of backing pad is provided with two symmetrical sliding slots, and two sliding slots and movable guide rail position coincide, through setting up the guide rail adjustable outer positioning block who can move along movable guide rail, and adopt the thread transmission structure of screw and square nut, make operator can according to the width size of the product to be processed fast, accurately adjust the position of outer positioning block, need not to change mould to can adapt to the production demand of different specifications products, significantly improve the versatility of mould and the flexibility of production arrangement, simultaneously, the downtime caused by product change -over is reduced greatly.

Description

Technical Field

[0001] This utility model relates to the technical field of punching dies, and in particular to an adjustable external positioning punching die. Background Technology

[0002] In modern manufacturing, punching dies are widely used in the processing and production of various products, especially in the manufacturing of complex parts such as car refrigerator liners. However, current punching die setups are typically customized for products of specific sizes, requiring the development of different dies to meet production needs. For example, in the production of car refrigerator liners, because different models of liners have varying dimensions, each product requires a separate mold.

[0003] This traditional method not only significantly increases mold development costs but also brings numerous inconveniences when switching between different product models. Specifically, when changing production machines, the existing mold must be removed from the machine tool and a new mold installed, a process that is time-consuming and severely impacts production efficiency. Furthermore, frequent mold changes can lead to increased machine tool downtime, further reducing the overall efficiency of the production line.

[0004] To address these issues, there is an urgent need for a universal punching die that can adapt to the production of various products. Existing punching dies typically lack flexibility, cannot quickly adjust external positioning devices, and are insufficient to meet the requirement of sharing a single die for multiple product models.

[0005] Therefore, in order to address the shortcomings of the above-mentioned problems, an adjustable external positioning punching die is proposed. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides an adjustable external positioning punching die.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an adjustable external positioning punching die, comprising: a lower die base;

[0008] Two shims are fixedly connected to the top of the lower mold base, and a lower template is fixedly connected to the top of each of the two shims.

[0009] A cutting blade block is fixedly connected to one end of the lower template. A movable guide rail is provided on one side of the lower template. Two square nuts are slidably connected in the movable guide rail. A pad is fixedly connected to one end of the lower template. Two symmetrical sliding grooves are provided on one side of the pad. The two sliding grooves coincide with the position of the movable guide rail. Two adjustable outer positioning blocks for the guide rail are provided on one side of the pad.

[0010] A screw is provided on one side of the adjustable outer positioning block of the guide rail. The screw passes through the adjustable outer positioning block of the guide rail and is rotatably connected. The screw passes through the sliding groove and is threadedly connected to the corresponding square nut. A top block assembly is provided on the top of the lower template.

[0011] In a preferred embodiment of the present invention, the top block assembly includes a spring top block, and a top block groove is provided on the top of the lower template. The spring top block is located in the top block groove and is fixedly connected.

[0012] In a preferred embodiment of this utility model, a spring-loaded movable outer fixed block is slidably connected within the top block groove.

[0013] In a preferred embodiment of this utility model, two guide rods are fixedly connected to one side of the movable outer block of the spring, and two washers are provided on one side of the top block of the spring. The two guide rods pass through the corresponding two washers and are slidably connected.

[0014] In a preferred embodiment of this utility model, a return spring is sleeved on the outer circumference of each of the two guide rods, and the return spring is located between the washer and the movable outer block of the spring.

[0015] In a preferred embodiment of this utility model, two pressure plates are fixedly connected inside the top block groove, and the spring movable outer fixed block is located between the two pressure plates.

[0016] In a preferred embodiment of this utility model, the two side surfaces of the movable outer fixed block of the spring are respectively in close contact with the inner side surfaces of the two pressure plates, and the close contact is a sliding contact with clearance fit.

[0017] In a preferred embodiment of this utility model, a plurality of forklift blocks are fixedly connected to the upper surface of the lower mold base.

[0018] In a preferred embodiment of this utility model, several forklift blocks are distributed at the four corners of the lower mold base.

[0019] In a preferred embodiment of this utility model, the product is provided on the outer side of the lower template.

[0020] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0021] (1) This utility model provides an adjustable external positioning punching die. By setting an adjustable external positioning block that can move along the movable guide rail, and adopting a threaded transmission structure of screw and square nut, the operator can quickly and accurately adjust the position of the external positioning block according to the width of the product to be processed. It can adapt to the production needs of different specifications of products without changing the die, significantly improving the versatility of the die and the flexibility of production arrangement, while greatly reducing the downtime caused by product change.

[0022] (2) This utility model provides an adjustable external positioning punching die. Through the elastic top block assembly consisting of a spring top block, a return spring and a spring movable outer fixed block, the die can automatically adapt to products of different heights and sizes. When placing the product, the spring movable outer fixed block is compressed and shrinks, and rebounds under the action of the return spring to achieve stable clamping. This not only ensures the accuracy and reliability of positioning, but also reduces the technical requirements for operators and improves the consistency of the punching process and product quality.

[0023] (3) This utility model provides an adjustable external positioning punching die. By setting forklift blocks at the four corners of the lower die base, it is convenient to transport and hoist the die, and improve the efficiency of equipment adjustment and maintenance. The overall structure takes into account both adjustability and stability. While realizing the common mold production of multiple products, it reduces the development and manufacturing cost of special molds, and provides enterprises with an efficient and economical solution in the small batch and multi-batch production mode. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0026] Figure 2 This is a three-dimensional sectional view of a preferred embodiment of the present invention;

[0027] Figure 3 This is an enlarged three-dimensional structural view of part A of the preferred embodiment of this utility model.

[0028] In the diagram: 1. Lower mold base; 2. Forklift block; 3. Elevating block; 4. Lower template; 5. Product; 7. Spring top block; 8. Washer; 9. Spring movable outer fixed block; 10. Return spring; 11. Trimming blade block; 12. Guide rail adjustable outer positioning block; 13. Pad plate; 14. Square nut; 15. Movable guide rail; 16. Pressure plate; 17. Screw. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] like Figure 1 As shown, an adjustable external positioning punching die includes: a lower die base 1;

[0031] Two shims 3 are fixedly connected to the top of the lower mold base 1, and a lower template 4 is fixedly connected to the top of each of the two shims 3;

[0032] like Figure 1-3 As shown, a cutting blade block 11 is fixedly connected to one end of the lower template 4, and a movable guide rail 15 is provided on one side of the lower template 4. Two square nuts 14 are slidably connected inside the movable guide rail 15. A pad plate 13 is fixedly connected to one end of the lower template 4. Two symmetrical sliding grooves are provided on one side of the pad plate 13. The two sliding grooves coincide with the position of the movable guide rail 15. There are two adjustable outer positioning blocks 12 on one side of the pad plate 13.

[0033] A screw 17 is provided on one side of the adjustable outer positioning block 12 of the guide rail. The screw 17 passes through the adjustable outer positioning block 12 of the guide rail and is rotatably connected. The screw 17 passes through the sliding groove and is threadedly connected to the corresponding square nut 14.

[0034] The top of the lower template 4 is provided with a top block assembly, which includes a spring top block 7. The top of the lower template 4 is provided with a top block groove. The spring top block 7 is located in the top block groove and is fixedly connected. A spring movable outer fixed block 9 is slidably connected in the top block groove. Two guide rods are fixedly connected to one side of the spring movable outer fixed block 9.

[0035] Two washers 8 are provided on one side of the spring top block 7. Two guide rods pass through the corresponding two washers 8 and are slidably connected. A return spring 10 is sleeved on the outer circumference of each of the two guide rods. The return spring 10 is located between the washer 8 and the spring movable outer fixed block 9. Two pressure plates 16 are fixedly connected in the top block groove. The spring movable outer fixed block 9 is located between the two pressure plates 16. The two side surfaces of the spring movable outer fixed block 9 are tightly fitted with the inner side surfaces of the two pressure plates 16, and the tight fit is a clearance fit sliding contact.

[0036] It should be noted that the lower mold base 1, as the basic load-bearing component of the entire mold, is used to fix other functional components and ensure the stability of the mold. The function of the shim block 3 is to raise the height of the mold for easier operation and installation. The two sliding grooves coincide with the position of the movable guide rail 15, thereby providing guidance for the sliding of the movable guide rail 15. The square nut 14 is threadedly connected to the adjustable outer positioning block 12 of the guide rail via the screw 17, allowing the adjustable outer positioning block 12 of the guide rail to be adjusted in position within the sliding groove.

[0037] It allows users to flexibly adjust the position of the adjustable outer positioning block 12 of the guide rail according to the width requirements of product 5, thereby ensuring the positioning of product 5 during the punching process.

[0038] Furthermore, the spring top block 7 provides an automatic reset function. The reset spring 10 is located between the washer 8 and the spring movable outer fixed block 9, and provides elastic thrust to ensure that the spring movable outer fixed block 9 can automatically adjust its position as the height of the product 5 changes. This elastic push-pull mechanism allows the mold to adapt to the needs of products 5 of different heights, avoiding the problem of frequent mold changes caused by differences in the size of the product 5.

[0039] To ensure smooth and reliable movement of the spring movable outer fixed block 9, two pressure plates 16 are fixedly connected in the top block groove. The spring movable outer fixed block 9 is located between the two pressure plates 16 and is tightly fitted to its two side surfaces, forming a clearance fit sliding contact. The tightly fitted mating surfaces are precision machined, and their flatness and surface roughness are suitable to ensure that the spring movable outer fixed block 9 moves smoothly in the predetermined direction in the top block groove, while preventing it from shaking or tilting perpendicular to the direction of movement during the stamping process. The contact surfaces between the pressure plates 16 and the spring movable outer fixed block 9 can be provided with a wear-resistant material layer or undergo surface hardening treatment to improve wear resistance and extend service life.

[0040] Specifically, when the adjustable outer positioning block 12 of the guide rail is adjusted to the appropriate position, the product 5 is manually placed into the mold, and the product 5 will push the spring movable outer positioning block 9 to retract inward until it is fully placed in place;

[0041] At this time, the spring-movable outer fixed block 9 automatically rebounds under the action of the reset spring 10, completing the clamping and positioning of product 5. This can effectively avoid positioning deviations caused by human error, thereby improving the punching accuracy.

[0042] The movable guide rail 15 allows the square nut 14 to slide freely within it. Simultaneously, the screw 17, in conjunction with the adjustable outer positioning block 12 of the guide rail, enables rapid locking and unlocking of the outer positioning block, improving operational efficiency. The screw 17 passes through and rotatably connects to the adjustable outer positioning block 12 of the guide rail. Rotating the screw 17 drives the adjustable outer positioning block 12 to move along the sliding groove, thereby achieving precise adjustment of the external positioning position.

[0043] When the width of product 5 needs to be adjusted, simply loosen screw 17, move the adjustable outer positioning block 12 of the guide rail to the target position, and then tighten screw 17 to complete the adjustment.

[0044] like Figure 1 As shown, a number of forklift blocks 2 are fixedly connected to the upper surface of the lower mold base 1. The forklift blocks 2 are distributed at the four corners of the lower mold base 1, and the product 5 is provided on the outer side of the lower mold plate 4.

[0045] It should be noted that several forklift blocks 2 are distributed at the four corners of the lower mold base 1 to facilitate the handling and installation of the mold. The forklift blocks 2 are designed with operational convenience in mind in mind, which can significantly reduce the difficulty of mold installation and maintenance. A product 5 placement area is provided on the outside of the lower mold plate 4 for placing the product 5 to be processed. The product 5 placement area achieves precise positioning of the product 5 through the combined action of the adjustable outer positioning block 12 and the spring-loaded movable outer positioning block 9.

[0046] In use, this invention firstly, based on the width of the product 5 to be processed, the corresponding adjustable outer positioning block 12 is driven to move along the sliding groove on the pad 13 by rotating the screws 17 on both sides. The screws 17 drive the square nut 14, which is threaded to it, to slide within the movable guide rail 15, thereby achieving precise adjustment of the position of the outer positioning block. After adjusting to the desired position, tightening the screws 17 reliably locks the outer positioning block. Subsequently, the product 5 is placed into the mold, and the edge of the product 5 pushes the spring movable outer positioning block 9 to move inward, compressing the return spring 10 until the product 5 is completely placed in place. Under the elastic force of the return spring 10, the spring movable outer positioning block 9 springs back outward, working in conjunction with the adjustable outer positioning block 12 to stably clamp and position the product 5. After positioning is completed, the punching operation can be performed.

[0047] After punching, the finished product is removed, and the spring-loaded outer fixed block 9 automatically resets under the action of the reset spring 10, ready for the next operation. This mold can be adapted to products 5 of different sizes through simple adjustments, which significantly improves production flexibility and efficiency and reduces downtime for changing molds.

[0048] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An adjustable external positioning punching die, comprising: The lower mold base (1) is characterized by: The top of the lower mold base (1) is fixedly connected to two shims (3), and the top of each of the two shims (3) is fixedly connected to a lower template (4). One end of the lower template (4) is fixedly connected to a cutting blade block (11). A movable guide rail (15) is provided on one side of the lower template (4). Two square nuts (14) are slidably connected inside the movable guide rail (15). A pad (13) is fixedly connected to one end of the lower template (4). Two symmetrical sliding grooves are provided on one side of the pad (13). The two sliding grooves coincide with the position of the movable guide rail (15). There are two adjustable outer positioning blocks (12) on one side of the pad (13). A screw (17) is provided on one side of the adjustable outer positioning block (12) of the guide rail. The screw (17) passes through the adjustable outer positioning block (12) of the guide rail and is rotatably connected. The screw (17) passes through the sliding groove and is threadedly connected to the corresponding square nut (14). A top block assembly is provided on the top of the lower template (4).

2. The adjustable external positioning punching die according to claim 1, characterized in that: The top block assembly includes a spring top block (7), and the top of the lower template (4) is provided with a top block groove. The spring top block (7) is located in the top block groove and is fixedly connected.

3. The adjustable external positioning punching die according to claim 2, characterized in that: A spring-loaded movable outer fixed block (9) is slidably connected within the top block groove.

4. The adjustable external positioning punching die according to claim 3, characterized in that: Two guide rods are fixedly connected to one side of the movable outer block (9) of the spring, and two washers (8) are provided on one side of the top block (7) of the spring. The two guide rods pass through the corresponding two washers (8) and are slidably connected.

5. The adjustable external positioning punching die according to claim 4, characterized in that: Both guide rods are fitted with a return spring (10) on their outer circumference. The return spring (10) is located between the washer (8) and the spring movable outer block (9).

6. The adjustable external positioning punching die according to claim 5, characterized in that: Two pressure plates (16) are fixedly connected inside the top block groove, and the spring movable outer fixed block (9) is located between the two pressure plates (16).

7. The adjustable external positioning punching die according to claim 6, characterized in that: The two sides of the movable outer fixed block (9) of the spring are in close contact with the inner sides of the two pressure plates (16), and the close contact is a sliding contact with clearance fit.

8. The adjustable external positioning punching die according to claim 1, characterized in that: Several forklift blocks (2) are fixedly connected to the upper surface of the lower mold base (1).

9. The adjustable external positioning punching die according to claim 8, characterized in that: Several of the forklift blocks (2) are distributed at the four corners of the lower mold base (1).

10. The adjustable external positioning punching die according to claim 1, characterized in that: The product (5) is provided on the outside of the lower template (4).

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