Side punching mechanism of a stamping die

Abstract

The utility model discloses a side punch mechanism of a stamping die, and relates to the technical field of stamping dies. The side punch mechanism includes a plurality of first alignment blocks and a second alignment block, wherein the plurality of first alignment blocks are fixed on the upper die, and the plurality of second alignment blocks are fixed on the lower die; an upper die insert, which is fixed on the upper die seat of the upper die, and a first inclined surface is provided at the lower end of the upper die insert; a slider, which is arranged below the upper die insert, and a second inclined surface is provided at one end of the slider, and a side punch and a positioning side plate are provided at the other end, and a reset component and a protrusion are also provided on the slider. When the die is opened, the reset component is used to drive the slider to reset, and the protrusion is fixed on both sides of the top of the slider and protrudes from the side wall of the slider; an upper pull component, which is fixed on the bottom of the upper stripping plate of the upper die, and the upper pull component includes two L-shaped guide plates, and the step formed by the L-shaped guide plates is located below the protrusion and is slidably connected with the protrusion. When the side punch mechanism is opened, the slider and other structures can move upward with the upper die to avoid blocking the product from falling.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a side punching mechanism of a stamping die. Background Art

[0002] The side punch mechanism of the stamping die is a kind of inclined wedge mechanism, and its principle is to control the side movement of the die body through the side punch mechanism, so as to achieve the purpose of side punching. The existing side punch mechanism usually includes a plunger and a working slide block arranged below the plunger, and the working slide block is installed on the guide block of the lower die. When the die is closed, the upper die drives the plunger to move downward, which can push the working slide block to slide on the lower die, so that the punch of the working slide block performs side punching on the workpiece; when the die is opened, the upper die drives the plunger to move upward, and the working slide block retreats and resets on the lower die. Since the existing working slide block is installed on the lower die, after completing the side punching of the product, the working slide block and the guide block and other structures still exist on the lower die, occupying a certain space on the lower die, which will prevent the product from falling, and it is inconvenient for the operator to collect the processed products. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a side punching mechanism of a stamping die, when the die is opened, structures such as a slide block can move upward with the upper die to avoid blocking the product from falling.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A side punch mechanism of a stamping die is applied to the stamping die. The stamping die includes an upper die and a lower die. The side punch mechanism includes:

[0006] A plurality of first alignment blocks and second alignment blocks, wherein the plurality of first alignment blocks are fixed at the bottom of the upper stripping plate of the upper die, and the plurality of second alignment blocks are correspondingly arranged below the first alignment blocks and fixed on the lower die. When the die is closed, the first alignment blocks are downwardly butted against the second alignment blocks; an upper die inserter is fixed on the upper die seat of the upper die, and a first inclined surface is arranged at the lower end of the upper die inserter; a slider is arranged below the upper die inserter, and a second inclined surface is arranged at one end of the slider in sliding contact with the first inclined surface, and a side punch and a positioning side plate are arranged at the other end, and a front end of the positioning side plate is arranged Adapted to the workpiece, the side punch passes through the positioning side plate, and the slider is also provided with a reset assembly and a protrusion. When the mold is opened, the reset assembly is used to drive the slider to reset. The protrusions are fixed on both sides of the top of the slider and protrude from the side walls of the slider; the upper pull assembly is fixed to the bottom of the upper stripping plate of the upper mold. The upper pull assembly includes two L-shaped guide plates respectively located on the outside of the two protrusions. The step formed by the L-shaped guide plate is located under the protrusion and is slidably connected to the protrusion. When the mold is opened, the upper pull assembly moves upward with the upper mold and is used to drive the protrusion and the slider to move upward.

[0007] As a further elaboration of the above technical solution:

[0008] In the above technical solution, the reset assembly includes multiple reset nitrogen springs; the pull-up assembly also includes a connecting plate, which is fixedly connected between the two L-shaped guide plates and the upper release plate, and a plurality of limit grooves for accommodating the reset nitrogen springs are provided at the bottom of the connecting plate. One end of the reset nitrogen spring is installed on the top of the slider, and the other end is installed in the limit groove.

[0009] In the above technical solution, one end of the reset nitrogen spring is mounted on the top of the slider through a mounting block; a fixing clip is provided in the limiting groove, and the other end of the reset nitrogen spring is mounted in the limiting groove through the fixing clip.

[0010] In the above technical solution, a self-lubricating sliding plate in contact with the top of the protrusion is provided at the bottom of the connecting plate.

[0011] In the above technical solution, a groove is provided at the bottom of the first alignment block, and a protrusion that can dock with the groove is provided at the top of the second alignment block.

[0012] In the above technical solution, a forced return hook is provided between the upper die insert and the slider, one end of the forced return hook is fixedly connected to the slider, and the other end is provided with a hook portion, and the side wall of the upper die insert is provided with an oblique return groove, and the hook portion is slidably connected to the return groove.

[0013] Compared with the prior art, the present invention achieves at least the following beneficial effects:

[0014] When closing the mold, the upper mold of the stamping mold moves downward and the lower mold is fixed. First, the upper stripping plate and the upper pulling assembly move vertically downward, and the slider follows the upper pulling assembly to move downward until the first alignment block of the upper stripping plate is aligned and contacted with the second alignment block of the lower mold. The mold closing force drives the upper mold seat to drive the upper mold insert to move toward the lower mold, and the upper mold insert pushes the slider to slide close to the workpiece on the L-shaped guide plate according to the side punch angle to drive the side punch to perform side punching; when opening the mold, the reset assembly drives the slider to retreat and reset along the L-shaped guide plate, and then the upper pulling assembly follows the upper mold to move upward, and pulls the protrusion and the slider upward, thereby avoiding the slider occupying the space on the lower mold, avoiding blocking the product from falling, and facilitating the operator to collect the processed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the structure of another perspective of an embodiment of the present application;

[0018] Figure 3 An exploded view of an embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the connection structure between the pull-up assembly and the slider according to an embodiment of the present application.

[0020] The numbers in the figure are: 1. first alignment block; 11. groove; 2. second alignment block; 21. protrusion; 3. upper die insert; 31. first inclined surface; 32. return groove; 4. slider; 41. second inclined surface; 42. side punch; 5. positioning side plate; 6. upper pull-up assembly; 61. L-shaped guide plate; 62. connecting plate; 621. limiting groove; 7. reset nitrogen spring; 8. protrusion; 9. fixing clamp; 10. self-lubricating slide plate; 20. forced return hook; 201. hook; 30. workpiece; 40. upper stripping plate; 50. mounting block. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or it can include the first and second features not being in direct contact but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] like Figures 1 to 4 As shown, a side punch mechanism of a stamping die, the stamping die includes an upper die and a lower die, and the side punch mechanism includes:

[0024] A plurality of first alignment blocks 1 and second alignment blocks 2, wherein the plurality of first alignment blocks 1 are fixed to the bottom of the upper stripping plate 40 of the upper die, and the plurality of second alignment blocks 2 are correspondingly arranged below the first alignment blocks 1 and fixed to the lower die, and when the die is closed, the first alignment blocks 1 are downwardly butted against the second alignment blocks 2;

[0025] An upper die insert 3 is fixed on an upper die seat of the upper die, and a first inclined surface 31 is provided at the lower end of the upper die insert 3;

[0026] The slider 4 is arranged below the upper die insert 3. One end of the slider 4 is provided with a second inclined surface 41 that is in sliding contact with the first inclined surface 31. The other end is provided with a side punch 42 and a positioning side plate 5. The front end of the positioning side plate 5 is adapted to the shape of the workpiece 30 to be punched. The side punch 42 passes through the positioning side plate 5. The side punch 42 is used to punch the workpiece 30. The slider 4 is also provided with a reset component and a convex block 8. When the mold is opened, the reset component is used to drive the slider 4 to reset. The convex block 8 is fixed on both sides of the top of the slider 4 and protrudes from the side wall of the slider 4.

[0027] The upper pulling component 6 is fixed at the bottom of the upper stripping plate 40 of the upper die. The upper pulling component 6 includes two L-shaped guide plates 61 respectively located on the outside of the two protrusions 8. The step formed by the L-shaped guide plates 61 is located below the protrusions 8 and is slidably connected to the protrusions 8. When the die is closed, the upper die insert 3 moves downward and pushes the slider 4 on the L-shaped guide plate 61 to slide close to the workpiece 30 at a side punching angle to drive the side punch 42 to perform side punching. When the die is opened, the reset component drives the slider 4 to retreat and reset along the L-shaped guide plate 61, and then the upper pulling component 6 moves upward with the upper die and pulls the protrusions 8 and the slider 4 to move upward.

[0028] Specifically, the reset assembly includes multiple reset nitrogen springs 7; the pull-up assembly 6 also includes a connecting plate 62, which is fixedly connected between the two L-shaped guide plates 61 and the upper release plate 40, and a plurality of limiting grooves 621 for accommodating the reset nitrogen springs 7 are provided at the bottom of the connecting plate 62, one end of the reset nitrogen spring 7 is installed on the top of the slider 4, and the other end is installed in the limiting groove 621; one end of the reset nitrogen spring 7 is installed on the top of the slider 4 through a mounting block 50; a fixing clip 9 is provided in the limiting groove 621, and the other end of the reset nitrogen spring 7 is installed in the limiting groove 621 through the fixing clip 9.

[0029] It can be understood that when the mold is closed, the slider 4 slides on the upper pull assembly 6 close to the workpiece 30, and the reset nitrogen spring 7 is compressed; when the mold is opened, the slider 4 slides on the upper pull assembly 6 away from the workpiece 30, and the reset nitrogen spring 7 generates elastic force, thereby ensuring the timely reset of the slider 4.

[0030] Specifically, a self-lubricating slide plate 10 in contact with the top of the protrusion 8 is provided at the bottom of the connecting plate 62. When the slider 4 slides, the protrusion 8 rubs against the connecting plate 62. The self-lubricating slide plate 10 has a built-in solid lubricant that can be automatically released during operation, thereby reducing the friction between the protrusion 8 and the surface of the connecting plate 62.

[0031] Specifically, a groove 11 is provided at the bottom of the first alignment block 1 , and a protrusion 21 that can be connected to the groove 11 is provided at the top of the second alignment block 2 .

[0032] Specifically, a forced return hook 20 is provided between the upper die insert 3 and the slider 4, one end of the forced return hook 20 is fixedly connected to the slider 4, and the other end is provided with a hook portion 201, and the side wall of the upper die insert 3 is provided with an oblique return groove 32, and the hook portion 201 is slidably connected to the return groove 32.

[0033] It is understandable that, considering the safety after the reset nitrogen spring 7 fails, a forced return hook 20 is added between the upper die insert 3 and the slider 4. The forced return hook 20 slides along the return groove 32. After each stamping is completed, the slider 4 can be forced to return to the initial position, thereby ensuring the accuracy and stability of the next stamping.

[0034] In this embodiment, a nitrogen spring is also provided on the upper stripping plate 40 of the upper mold, which is used to provide sufficient pressing force and stripping force to the upper stripping plate 40 .

[0035] The working principle of the utility model is:

[0036] When the mold is closed, the upper mold of the stamping mold moves downward, and the lower mold is fixed. First, the upper stripping plate 40 and the upper pull component 6 move vertically downward. Since the protrusion 8 of the slider 4 is slidably connected with the step of the L-shaped guide plate 61, the slider 4 moves downward with the upper pull component 6 until the first alignment block 1 of the upper stripping plate 40 is aligned and contacted with the second alignment block 2 of the lower mold. The mold closing force drives the upper mold seat to drive the upper mold insert 3 to move toward the lower mold. The first inclined surface 31 of the upper mold insert 3 contacts and cooperates with the first inclined surface 31 of the slider 4, pushing the slider 4 to slide along the L-shaped guide plate 61 and the connecting plate 62, and translates close to the workpiece 30 according to the side punching angle, thereby driving the side punch 42 to perform side punching on the workpiece 30 on the positioning side plate 5.

[0037] When the mold is opened, the upper mold seat drives the upper mold insert 3 to move upward away from the slider 4, and the reset nitrogen spring 7 generates elastic force, and cooperates with the forced return hook 20 to ensure that the slider 4 slides away from the workpiece 30 for reset, thereby driving the side punch 42 to leave the workpiece 30; then, the upper stripping plate 40 and the upper pulling assembly 6 move vertically upward, driving the slider 4 to move upward. Compared with the side punch mechanism of the prior art, the disadvantage of the slider 4 and the side punch 42 structure blocking the workpiece 30 from falling is eliminated, ensuring that the workpiece 30 can fall smoothly when the mold is opened.

[0038] It should be understood that all the above embodiments are illustrative rather than restrictive, and any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the conception of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A side punch mechanism of a stamping die, the stamping die comprising an upper die and a lower die, characterized in that: include: A plurality of first alignment blocks (1) and second alignment blocks (2), wherein the plurality of first alignment blocks (1) are fixed to the bottom of the upper stripping plate (40) of the upper mold, and the plurality of second alignment blocks (2) are correspondingly arranged below the first alignment blocks (1) and fixed to the lower mold, and when the mold is closed, the first alignment blocks (1) are downwardly butted against the second alignment blocks (2); An upper die insert (3) is fixed on an upper die seat of the upper die, and a first inclined surface (31) is provided at the lower end of the upper die insert (3); A slider (4) is arranged below the upper die insert (3); one end of the slider (4) is provided with a second inclined surface (41) in sliding contact with the first inclined surface (31); the other end is provided with a side punch (42) and a positioning side plate (5); the front end of the positioning side plate (5) is adapted to the workpiece (30); the side punch (42) passes through the positioning side plate (5); a reset assembly and a convex block (8) are also provided on the slider (4); the convex block (8) is fixed on both sides of the top of the slider (4) and protrudes from the side wall of the slider (4); An upper pull-up assembly (6) is fixed at the bottom of the upper stripping plate (40) of the upper mold. The upper pull-up assembly (6) comprises two L-shaped guide plates (61) respectively located on the outside of the two protrusions (8). The step formed by the L-shaped guide plates (61) is located below the protrusion (8) and is slidably connected to the protrusion (8). When the mold is opened, the upper pull-up assembly (6) moves upward with the upper mold and is used to drive the protrusion (8) and the slider (4) to move upward.

2. The side punching mechanism of the stamping die according to claim 1, characterized in that: The reset assembly includes a plurality of reset nitrogen springs (7); the pull-up assembly (6) also includes a connecting plate (62), the connecting plate (62) is fixedly connected between the two L-shaped guide plates (61) and the upper release plate (40), a plurality of limiting grooves (621) for accommodating the reset nitrogen springs (7) are provided at the bottom of the connecting plate (62), one end of the reset nitrogen spring (7) is installed on the top of the slider (4), and the other end is installed in the limiting groove (621).

3. The side punching mechanism of the stamping die according to claim 2, characterized in that: One end of the reset nitrogen spring (7) is mounted on the top of the slider (4) via a mounting block (50); a fixing clip (9) is provided in the limiting groove (621), and the other end of the reset nitrogen spring (7) is mounted in the limiting groove (621) via the fixing clip (9).

4. The side punching mechanism of the stamping die according to claim 2, characterized in that: A self-lubricating slide plate (10) is provided at the bottom of the connecting plate (62) and contacts the top of the protrusion (8).

5. The side punching mechanism of the stamping die according to claim 1, characterized in that: The first alignment block (1) has a groove (11) at the bottom, and the second alignment block (2) has a protrusion (21) at the top that can dock with the groove (11).

6. The side punching mechanism of the stamping die according to claim 1, characterized in that: A forced return hook (20) is provided between the upper die insert knife (3) and the slider (4); one end of the forced return hook (20) is fixedly connected to the slider (4), and the other end is provided with a hook portion (201); a side wall of the upper die insert knife (3) is provided with an oblique return groove (32), and the hook portion (201) is slidably connected to the return groove (32).

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