Self-locking height adjusting structure of stamping die

Abstract

The utility model relates to the technical field of stamping dies, and discloses a stamping die self-locking height adjusting structure which comprises a die holder, a base plate and a fixing plate which are sequentially stacked and fixed, a forming punch is arranged in the fixing plate in a penetrating mode, and the head end of the forming punch extends out of the surface of the fixing plate. A cavity is formed in the face, attached to the base plate, of the die holder, a drawing plate capable of moving horizontally is arranged in the cavity, the face, close to the base plate, of the drawing plate is an inclined face, a plurality of grooves are formed in the inclined face, and the vertical distances from the grooves to the tail end of the forming punch are different. An adjusting rod is arranged in the base plate in a penetrating mode, the first end of the adjusting rod is connected with the tail end of the forming punch, the second end of the adjusting rod is inserted into a groove axially aligned with the forming punch, the adjusting rod is sleeved with a spring, and the spring exerts acting force on the adjusting rod to press the pulling plate. According to the self-locking height adjusting structure of the stamping die, by adjusting the displacement of the drawing plate in the horizontal direction, the different grooves are switched to be axially aligned with the forming punch, and the height of the part, stretching out of the fixing plate, of the forming punch is changed.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a self-locking height adjustment structure for stamping dies. Background Technology

[0002] Stamping dies are specialized processing equipment used for processing sheet metal, and are widely used in industries such as automotive, electronics, home appliances, and aerospace. The working principle of stamping dies is to place the sheet metal between an upper and lower die, then apply pressure to close the upper and lower dies, subjecting the sheet metal to forces such as compression, stretching, bending, or shearing, thereby deforming it into the desired shape.

[0003] For molded shapes with the same external shape but different heights, it is generally necessary to replace and disassemble the mold base and the punch to meet different molding requirements. The whole process is cumbersome, the mold debugging efficiency is low, it affects the production cycle, and it requires a large number of punches, which increases manufacturing and storage costs. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking height adjustment structure for stamping dies to solve the problems mentioned in the background art and achieve quick die change without replacing the punch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-locking height adjustment structure for a stamping die includes a die base, a pad, and a fixing plate stacked and fixed in sequence, wherein:

[0007] A forming punch is inserted through the fixed plate, and the head end of the forming punch extends out of the surface of the fixed plate;

[0008] A cavity is provided on the surface of the mold base that is in contact with the pad. A movable pull plate is provided in the cavity. The surface of the pull plate that is close to the pad is inclined. Several grooves are provided on the inclined surface. The vertical distance from each groove to the tail end of the forming punch is different.

[0009] An adjusting rod is inserted through the pad. The first end of the adjusting rod is connected to the tail end of the forming punch, and the second end of the adjusting rod is inserted into a groove aligned with the axial direction of the forming punch. A spring is fitted on the adjusting rod, and the spring exerts a force on the adjusting rod to press against the drawing plate.

[0010] As an alternative, the side of the drawer is provided with a handle that extends out of the cavity. The handle is used to drive the drawer to move horizontally, so as to switch different grooves and axially align with the forming punch.

[0011] As an alternative, the angle between the inclined plane and the horizontal plane is 5° to 15°.

[0012] As an alternative, the bottom surface of the draw plate slides in contact with the bottom of the cavity, and the highest surface of the inclined plane slides in contact with the pad.

[0013] As an alternative, the surface of the adjusting rod is provided with a raised edge, one end of the spring abuts against the fixed plate, and the other end of the spring abuts against the raised edge.

[0014] As an alternative, the pad is provided with a stop to limit the protrusion, which is used to limit the minimum height of the forming punch extending out of the fixing plate.

[0015] As an alternative, the second end of the adjusting rod is hemispherical, and each groove is a spherical concave surface that fits the second end of the adjusting rod.

[0016] As an alternative, the tail end of the forming punch is axially fixed to the first end of the adjusting rod by a screw.

[0017] The beneficial effects of this utility model are:

[0018] This self-locking height adjustment structure for stamping dies adjusts the horizontal displacement of the drawing plate to switch different grooves aligned with the axial direction of the forming punch. This allows the adjusting rod to change the height of the forming punch extending from the fixed plate, thus meeting the forming requirements, reducing the difficulty of changing shapes, and improving overall processing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the self-locking height adjustment structure of the stamping die provided in this embodiment of the utility model.

[0020] In the attached image:

[0021] 1. Mold base; 11. Cavity;

[0022] 2. Pad; 21. Edge retaining plate;

[0023] 3. Fixing plate;

[0024] 4. Forming punch;

[0025] 5. Drawer panel; 51. Angled surface; 52. Groove; 53. Handle;

[0026] 6. Adjusting rod; 61. Protruding edge;

[0027] 7. Spring;

[0028] 8. Screws. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0034] Please see Figure 1 As shown, this embodiment provides a self-locking height adjustment structure for a stamping die, including a die base 1, a pad 2, and a fixing plate 3 that are stacked and fixed in sequence, wherein:

[0035] A forming punch 4 is inserted through the fixed plate 3, and the head end of the forming punch 4 extends out of the surface of the fixed plate 3;

[0036] A cavity 11 is provided on the surface of the mold base 1 that is in contact with the pad 2. A movable pull plate 5 is provided in the cavity 11. The surface of the pull plate 5 that is close to the pad 2 is an inclined surface 51. Several grooves 52 are provided on the inclined surface 51. The vertical distance from each groove 52 to the tail end of the forming punch 4 is different.

[0037] An adjusting rod 6 is inserted through the pad 2. The first end of the adjusting rod 6 is connected to the tail end of the forming punch 4, and the second end of the adjusting rod 6 is inserted into the groove 52 that is axially aligned with the forming punch 4. A spring 7 is sleeved on the adjusting rod 6, and the spring 7 exerts a force on the adjusting rod 6 to press against the draw plate 5.

[0038] Therefore, by adjusting the horizontal displacement of the drawing plate 5, different grooves 52 are switched to be axially aligned with the forming punch 4, thereby changing the height of the forming punch 4 extending out of the fixed plate 3 by adjusting the rod 6, which satisfies the forming requirements, reduces the difficulty of changing shapes, and improves the overall processing efficiency.

[0039] Optionally, the side of the draw plate 5 is provided with a handle 53 extending out of the cavity 11. The handle 53 is used to drive the draw plate 5 to move horizontally, so as to facilitate switching different grooves 52 outside the cavity 11 to be axially aligned with the forming punch 4.

[0040] Optionally, the angle between the inclined plane 51 and the horizontal plane is 5° to 15°. Within this angle range, it is more convenient for the adjusting rod 6 to move up and down as the sliding plate 5 moves, so as to switch between the various grooves 52.

[0041] Optionally, the bottom surface of the draw plate 5 slides in contact with the bottom of the cavity 11, and the highest surface of the inclined surface 51 slides in contact with the pad 2, ensuring that the draw plate 5 moves accurately with only horizontal displacement, thereby precisely controlling the extension height of the forming punch 4.

[0042] Optionally, the surface of the adjusting rod 6 is provided with a raised edge 61, one end of the spring 7 abuts against the fixed plate 3, and the other end of the spring 7 abuts against the raised edge 61.

[0043] This ensures the reliable installation of spring 7, and under the action of spring 7, the adjusting rod 6 always engages with a certain groove 52 of the drawer plate 5 to form a self-locking mechanism; however, it should be noted that the force of spring 7 should be appropriate to avoid the adjusting rod 6 being unable to switch from one groove 52 to another during the translation of the drawer plate 5.

[0044] Furthermore, the pad 2 is provided with a stop 21 that limits the protrusion 61. The stop 21 is used to limit the minimum height of the forming punch 4 extending out of the fixing plate 3.

[0045] Optionally, the second end of the adjusting rod 6 is hemispherical, and each groove 52 is a spherical concave surface that matches the second end of the adjusting rod 6. The spherical fit makes it easier for the adjusting rod 6 to slide in and out of the groove 52.

[0046] Optionally, the tail end of the forming punch 4 is axially fixed to the first end of the adjusting rod 6 by a screw 8, so that the adjusting rod 6 provides reliable support for the forming punch 4 and ensures the positional accuracy of the forming punch 4.

[0047] Specific adjustment process:

[0048] When it is necessary to increase the extension height of the forming punch 4, the control handle 53 drives the draw plate 5 to move horizontally. Correspondingly, the second end of the adjusting rod 6 moves from the low point to the high point along the inclined plane 51. The adjusting rod 6 overcomes the force of the spring 7 and is pushed up, thereby cooperating with a groove 52 at a higher position, thereby pushing out the forming punch 4.

[0049] When it is necessary to reduce the extension height of the forming punch 4, the control handle 53 drives the draw plate 5 to move in the opposite direction, and the second end of the adjusting rod 6 moves from the high point to the low point along the inclined plane 51. Under the action of the spring 7, the adjusting rod 6 cooperates with a groove 52 at a lower position, so that the forming punch 4 retracts into the fixed plate 3, thereby realizing the height adjustment of the forming punch 4.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A self-locking height adjustment structure for stamping dies, characterized in that, It includes a mold base (1), a pad (2), and a fixing plate (3) that are stacked and fixed in sequence, wherein: A forming punch (4) is provided in the fixing plate (3), and the head end of the forming punch (4) extends out of the surface of the fixing plate (3); A cavity (11) is provided on the surface of the mold base (1) that abuts against the pad (2). A movable pull plate (5) is provided in the cavity (11). The surface of the pull plate (5) near the pad (2) is an inclined surface (51). Several grooves (52) are provided on the inclined surface (51). The vertical distance from each groove (52) to the tail end of the forming punch (4) is different. An adjusting rod (6) is inserted through the pad (2). The first end of the adjusting rod (6) is connected to the tail end of the forming punch (4). The second end of the adjusting rod (6) is inserted into the groove (52) which is axially aligned with the forming punch (4). A spring (7) is sleeved on the adjusting rod (6). The spring (7) exerts a force on the adjusting rod (6) to press against the draw plate (5).

2. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The side of the draw plate (5) is provided with a handle (53) extending out of the cavity (11). The handle (53) is used to drive the draw plate (5) to translate so as to switch different grooves (52) to be axially aligned with the forming punch (4).

3. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The angle between the inclined plane (51) and the horizontal plane is 5° to 15°.

4. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The bottom surface of the draw plate (5) slides in contact with the bottom of the cavity (11), and the highest surface of the inclined surface (51) slides in contact with the pad (2).

5. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The surface of the adjusting rod (6) is provided with a raised edge (61), one end of the spring (7) abuts against the fixed plate (3), and the other end of the spring (7) abuts against the raised edge (61).

6. The self-locking height adjustment structure for stamping dies according to claim 5, characterized in that, The pad (2) is provided with a stop (21) for limiting the protrusion (61), and the stop (21) is used to limit the minimum height of the forming punch (4) extending out of the fixing plate (3).

7. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The second end of the adjusting rod (6) is hemispherical, and each of the grooves (52) is a spherical concave surface adapted to the second end of the adjusting rod (6).

8. The self-locking height adjustment structure for stamping dies according to claim 1, characterized in that, The tail end of the forming punch (4) is axially fixed to the first end of the adjusting rod (6) by a screw (8).

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