Guide pillar limiting and guiding mechanism in lower die of die

Abstract

A guide pillar limiting and guiding mechanism in a lower die of a die comprises a stripper plate and a material lifting plate, the material lifting plate is provided with a fifth through hole, an inner guide pillar is fixed in the fifth through hole, and the inner guide pillar extends downwards; a fourth through hole and a second groove are formed in the top of the lower die base, an inner guide sleeve is arranged in the fourth through hole, a guide column limiting check block and a guide sleeve pressing block are arranged on the lower die base and located on the two sides of the inner guide sleeve, the inner guide sleeve is fixed through the guide column limiting check block and the guide sleeve pressing block, and a step is arranged on the side wall of the inner guide sleeve. One end of the guide column limiting stop block is located in the step of the inner guide sleeve, and the inner guide column is limited through cooperation of the guide column limiting stop block and the step of the inner guide sleeve. A lower die elastic element is arranged in the second groove, one end of the lower die elastic element is connected with the material lifting plate, and a workpiece is placed on the material lifting plate. According to the utility model, the inner guide pillar is limited by matching the guide pillar limiting baffle block with the step of the inner guide pillar, so that the occupied space of the die can be reduced, and the overall cost of the die is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a guide post limiting and guiding mechanism for the lower mold. Background Technology

[0002] In recent years, with increasingly fierce competition in the automotive market, major automakers have focused their research and development on the vehicle's body panels and related stamped parts, collectively referred to as components, as they develop new models. The requirements for these components are becoming increasingly stringent, leading to greater complexity, higher strength, and a wider variety of complex and unique shapes. In molds, the lower die base has a lifting plate that supports the component. Because the lifting plate needs to move repeatedly up and down during production, guide pillars and limit hooks are typically used in conjunction to ensure the accuracy of the distance between the lifting plate and the lower die base. However, this structure significantly impacts the mold space, necessitating a floating connection device with a smaller installation space to improve mold space and reduce mold costs.

[0003] Existing lower mold guiding mechanisms typically use guide pillars and limit hooks in combination, but this structure has a significant impact on mold space, resulting in a large mold footprint and high cost.

[0004] To address this, we propose a guide post limiting and guiding mechanism for the lower mold. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a guide post limiting and guiding mechanism for the lower mold, which restricts the inner guide post by means of the guide post limiting block and the step of the inner guide post, thereby reducing the space occupied by the mold and reducing the overall cost of the mold.

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

[0007] A guide post limiting and guiding mechanism for the lower mold is applied in a mold, the mold including an upper mold base and a lower mold base, and the guiding mechanism includes:

[0008] The stripper plate is located below the upper mold base;

[0009] The lifting plate is located above the lower mold base;

[0010] The lifting plate is provided with a fifth through hole, and an inner guide post is fixed in the fifth through hole, with the inner guide post extending downward.

[0011] The lower mold base has a fourth through hole and a second groove at the top. An inner guide sleeve is installed in the fourth through hole. The lower mold base has guide post limiting blocks and guide sleeve pressing blocks on both sides of the inner guide sleeve. The inner guide sleeve is fixed by the guide post limiting blocks and guide sleeve pressing blocks. The side wall of the inner guide sleeve is provided with a step. One end of the guide post limiting block is located in the step of the inner guide sleeve. The guide post limiting block and the step of the inner guide sleeve cooperate to limit the inner guide post.

[0012] The second groove contains a lower mold elastic element, one end of which is connected to the lifting plate, and the workpiece is placed on the lifting plate.

[0013] Its further features are:

[0014] The inner guide post has a boss at one end near the lifting plate, and the inner guide post is fixed by the guide post pressure block.

[0015] There are two guide post pressure blocks, which are respectively located on both sides of the inner guide post and are fixed to the lifting plate by screws.

[0016] The upper mold base is provided with a first through hole, and the lower mold base is provided with a third through hole. An outer guide sleeve is fixed in the third through hole, and an outer guide post that matches the outer guide sleeve is fixed in the first through hole.

[0017] The guide post limiting block, inner guide sleeve, and guide sleeve pressure block are in a straight line shape.

[0018] The upper mold base is provided with a second through hole, and a guide sleeve is provided in the second through hole. A guide post matching the guide sleeve is fixed on the top of the stripper plate.

[0019] The bottom of the upper mold base is provided with a first groove, and an upper mold elastic element is provided in the first groove. One end of the upper mold elastic element is connected to the stripper plate.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model features a compact and reasonable structure, is easy to operate, and can reduce the space occupied by the mold and lower the overall cost of the mold. By machining a step into the inner guide post, it can fix the inner guide sleeve, and the guide post limiting block cooperates with the step of the inner guide post to restrict the inner guide post, thereby improving mold space, reducing mold cost, and simplifying the mold. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 for Figure 1 The main view.

[0024] Figure 3 for Figure 2 Top view.

[0025] Figure 4 for Figure 3 Schematic diagram of the AA section.

[0026] Figure 5 for Figure 3 Schematic diagram of the BB cross section.

[0027] Figure 6 for Figure 3 Schematic diagram of the CC section.

[0028] Figure 7 for Figure 6 Enlarged diagram of point D in the middle.

[0029] Wherein: 100, upper mold base; 110, first through hole; 120, second through hole; 130, first groove; 200, lower mold base; 210, third through hole; 220, fourth through hole; 230, second groove; 300, stripper plate; 400, outer guide post; 500, lifting plate; 510, fifth through hole; 600, inner guide post; 700, guide post pressure block; 800, guide post limiting block; 900, guide sleeve pressure block; 1000, inner guide sleeve; 1100, component; 1200, outer guide sleeve; 1300, upper mold elastic element; 1400, lower mold elastic element. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] like Figures 1-6 As shown, a guide post limiting and guiding mechanism for the lower mold includes an upper mold base 100, a lower mold base 200, a stripper plate 300, an outer guide post 400, a lifting plate 500, an inner guide post 600, a guide post pressing block 700, a guide post limiting block 800, a guide sleeve pressing block 900, an inner guide sleeve 1000, and an outer guide sleeve 1200.

[0032] The upper mold base 100 is located above the lower mold base 200. The upper mold base 100 is provided with a first through hole 110 and a second through hole 120. The bottom of the upper mold base 100 is provided with a first groove 130, which is located on one side of the bottom of the upper mold base 100. The first through hole 110 is located on the other side of the upper mold base 100. The second through hole 120 is located between the first through hole 110 and the first groove 130.

[0033] In one embodiment, the center lines of the first through hole 110, the second through hole 120, and the first groove 130 are in the same plane.

[0034] An outer guide sleeve 1200 is fixed in the third through hole 210 of the lower mold base 200. One end of the outer guide post 400 is inserted into the first through hole 110. The outer guide post 400 is fixedly connected to the upper mold base 100 by screws. The other end of the outer guide post 400 is movably disposed in the outer guide sleeve 1200.

[0035] The lower mold base 200 is provided with a third through hole 210 and a fourth through hole 220. A second groove 230 is provided on the top of the lower mold base 200. The second groove 230 is located on one side of the top of the lower mold base 200. The third through hole 210 is located on the other side of the lower mold base 200. The fourth through hole 220 is located between the third through hole 210 and the second groove 230.

[0036] The outer guide post 400 can pass through the outer guide sleeve 1200 into the third through hole 210.

[0037] The lifting plate 500 is provided with a fifth through hole 510, and one end of the inner guide post 600 is provided with a step, and this end of the inner guide post 600 is located in the fifth through hole 510. The inner guide post 600 is fixed to the bottom of the lifting plate 500 by the guide post pressure block 700.

[0038] The boss of the inner guide post 600 contacts the bottom of the lifting plate 500.

[0039] In one embodiment, two guide post blocks 700 are provided, and the two guide post blocks 700 are respectively provided on both sides of the inner guide post 600. The guide post blocks 700 fix the boss of the inner guide post 600, and the guide post blocks 700 are fixedly connected to the lifting plate 500 by screws.

[0040] An inner guide sleeve 1000 is provided in the fourth through hole 220 of the lower mold base 200. A guide post limiting block 800 and a guide sleeve pressing block 900 are provided on the top of the lower mold base 200. The inner guide sleeve 1000 is fixed by the guide sleeve pressing block 900 and the guide post limiting block 800.

[0041] In one embodiment, the guide sleeve pressure block 900 is fixedly connected to the lower mold base 200 by screws.

[0042] The guide post limiting block 800 and the guide sleeve pressing block 900 are respectively set on both sides of the inner guide sleeve 1000.

[0043] In one embodiment, the guide post limiting block 800 is fixedly connected to the lower mold base 200 by screws.

[0044] In one embodiment, the guide post limiting block 800, the inner guide sleeve 1000, and the guide sleeve pressing block 900 are in a straight line.

[0045] The lower mold base 200 has a second groove 230 with a lower mold elastic element 1400, one end of which is connected to the lifting plate 500.

[0046] An upper mold elastic element 1300 is provided in the first groove 130 of the upper mold base 100, and one end of the upper mold elastic element 1300 is connected to the stripper plate 300.

[0047] The inner guide post 600 has a step on its side wall, and one end of the guide post limiting block 800 is set in the step of the inner guide post 600, thereby realizing the restriction of the inner guide post 600 by the guide post limiting block 800.

[0048] The stripper plate 300 is provided with guide posts, and the second through hole 120 of the upper mold base 100 is provided with a guide sleeve that matches the guide posts. The stripper plate 300 is guided by the cooperation of the guide posts and the guide sleeve.

[0049] Part 1100 is placed on lifting plate 500.

[0050] One action consists of two phases;

[0051] Phase 1: In the initial mold opening state, the upper mold base 100 is at its highest position, the lower mold base 200 is set on the worktable of the punch press, the stripper plate 300 is released by the upper mold elastic element 1300, the stripper plate 300 is in the open state, the lifting plate 500 is lifted by the lower mold elastic element 1400, and the inner guide post 600 is limited by the guide post limiting block 800, the lifting plate 500 is in the open state.

[0052] Phase Two: The press begins to move downwards, with the upper die holder 100 moving downwards. The outer guide post 400 first contacts the outer guide sleeve 1200. The outer guide post 400 and outer guide sleeve 1200 work together to provide precise guidance, ensuring dimensional accuracy and preventing collisions and interference between components within the die. The upper die holder 100 continues to move downwards, causing the outer guide post 400 to move to a certain position. At this point, the stripper plate 300 presses down on the workpiece 1100 and moves it downwards to the first contact point with the lifting plate 500. This is the initial contact point. As the lifting plate 500 continues to move downwards, it is pressured by the upper die holder 100. The inner guide post 600 slides downwards along the inner guide sleeve 1000 until it reaches the upper and lower outer limits and engages, locking the die completely.

[0053] It can reduce the space occupied by the mold and lower the overall cost of the mold. By machining a step into the inner guide post 600, the inner guide sleeve 1000 can be fixed. The guide post limiting block 800 and the step of the inner guide post 600 can restrict the inner guide post 600, thereby increasing the mold space, reducing the mold cost, and simplifying the mold.

[0054] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A guide post limiting and guiding mechanism for the lower mold, applied in a mold, the mold comprising an upper mold base (100) and a lower mold base (200), characterized in that, The guidance mechanism includes: A stripper plate (300) is located below the upper mold base (100); The lifting plate (500) is located above the lower mold base (200); Among them, the lifting plate (500) is provided with a fifth through hole (510), and an inner guide post (600) is fixed in the fifth through hole (510), and the inner guide post (600) extends downward; The lower mold base (200) is provided with a fourth through hole (220) and a second groove (230) at the top. An inner guide sleeve (1000) is provided in the fourth through hole (220). The lower mold base (200) is provided with guide post limiting blocks (800) and guide sleeve pressing blocks (900) on both sides of the inner guide sleeve (1000). The inner guide sleeve (1000) is fixed by the guide post limiting blocks (800) and the guide sleeve pressing blocks (900). The side wall of the inner guide sleeve (1000) is provided with a step. One end of the guide post limiting block (800) is located in the step of the inner guide sleeve (1000). The inner guide post (600) is limited by the cooperation between the guide post limiting block (800) and the step of the inner guide sleeve (1000). The second groove (230) is provided with a lower mold elastic element (1400), one end of which is connected to the lifting plate (500), and the part (1100) is placed on the lifting plate (500).

2. The guide post limiting and guiding mechanism for the lower mold as described in claim 1, characterized in that: The inner guide post (600) has a boss at one end near the lifting plate (500), and the inner guide post (600) is fixed by the guide post pressure block (700).

3. The guide post limiting and guiding mechanism for the lower mold as described in claim 2, characterized in that: Two guide post pressure blocks (700) are provided, and the two guide post pressure blocks (700) are respectively located on both sides of the inner guide post (600). The guide post pressure blocks (700) are fixed to the lifting plate (500) by screws.

4. A guide post limiting and guiding mechanism for the lower mold as described in any one of claims 1-3, characterized in that: The upper mold base (100) is provided with a first through hole (110), the lower mold base (200) is provided with a third through hole (210), an outer guide sleeve (1200) is fixed in the third through hole (210), and an outer guide post (400) that matches the outer guide sleeve (1200) is fixed in the first through hole (110).

5. The guide post limiting and guiding mechanism for the lower mold as described in claim 1, characterized in that: The guide post limiting block (800), inner guide sleeve (1000), and guide sleeve pressure block (900) are in a straight line.

6. The guide post limiting and guiding mechanism for the lower mold as described in claim 1, characterized in that: The upper mold base (100) is provided with a second through hole (120), and a guide sleeve is provided inside the second through hole (120). A guide post matching the guide sleeve is fixed on the top of the stripper plate (300).

7. The guide post limiting and guiding mechanism for the lower mold as described in claim 1, characterized in that: The bottom of the upper mold base (100) is provided with a first groove (130), and an upper mold elastic element (1300) is provided in the first groove (130). One end of the upper mold elastic element (1300) is connected to the stripper plate (300).

Images