A bending press die

Abstract

The utility model discloses a kind of bending punch die, including upper die plate and lower die plate, detachable bending punch is equipped on upper die plate;Pressing mechanism for fixing blank is provided on lower die plate;Two slide rails are symmetrically provided on lower die plate;Pressing mechanism includes clamping block and baffle, baffle is fixed in one side of two slide rails, and its bottom is detachably connected with lower die plate by bolt;Clamping block is slidably connected between two slide rails;Wedge is provided on upper die plate, and wedge drives clamping block to slide horizontally to baffle direction, the bottom of wedge is shaped with first inclined surface;The top of clamping block is correspondingly provided with second inclined surface matched with first inclined surface, and first inclined surface and second inclined surface form sliding pair by contact;When closing mould, wedge drives clamping block to slide horizontally to baffle direction along slide rail length, blank is pressed on baffle.This application structure is simple, and the pressing mechanism directly contacted with blank is provided with separately detachable clamping block and baffle, and single component is replaced quickly.

Description

Technical Field

[0001] This utility model relates to a stamping die, specifically a bending stamping die. Background Technology

[0002] In industrial production, molds are various shapes and tools used to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It primarily achieves the shaping of objects by changing the physical state of the material being molded. It is often referred to as the "mother of industry."

[0003] A mold has a specific contour or internal cavity shape. The contour shape with cutting edges allows the blank to be separated along the contour line (punching). The internal cavity shape allows the blank to obtain a corresponding three-dimensional shape. A mold generally consists of two parts: a moving mold and a fixed mold (or a punch and a die), which can be separated and joined. When separated, the workpiece is removed; when joined, the blank is injected into the mold cavity to form the shape. Molds are precision tools with complex shapes, bearing the expansion force of the blank. They have high requirements for structural strength, rigidity, surface hardness, surface roughness, and machining accuracy. The development level of mold manufacturing is one of the important indicators of the level of mechanical manufacturing.

[0004] Existing bending and stamping dies are inconvenient to disassemble and replace individual components of the lower die during use, which makes it difficult to replace damaged product dies and reduces the processing quality of the products.

[0005] Therefore, it is necessary to propose further solutions. Utility Model Content

[0006] This utility model provides a bending and stamping die to solve the above-mentioned technical problems.

[0007] The objective of this utility model is achieved through the following technical solution: a bending and stamping die, comprising an upper die and a lower die, characterized in that: The lower template is symmetrically provided with two slide rails and a pressing mechanism for fixing the blank; The pressing mechanism includes a clamping block and a baffle. The baffle is fixed to one side of two slide rails, and its bottom is detachably connected to the lower template by bolts. The clamping block is slidably connected between the two slide rails. The upper template is provided with a wedge-shaped block that drives the clamping block to slide horizontally in the direction of the baffle. The wedge-shaped block and the clamping block form a sliding pair through their mutually cooperating inclined surfaces.

[0008] Preferably, the lower template is further provided with an elastic pulling mechanism, the elastic pulling mechanism including a base, the base being fixedly connected to the other side of the two slide rails, and the base having a through hole radially opened; a pin is slidably connected to the through hole; one end of the pin is a connecting end, which passes through the through hole and connects to the clamping block, and the other end is a free end, which extends out of the base from the through hole; a return spring is sleeved on the surface of the free end, one end of the return spring abutting against the end of the free end, and the other end abutting against the base.

[0009] Preferably, the connection between the connecting end and the clamping block is a threaded connection.

[0010] Preferably, the upper template is provided with a detachable bending punch, and the end of the bending punch is provided with a bending cavity; the blank is fixed vertically on the pressing mechanism, and its top is suspended; when the upper template and the lower template are closed, the bending cavity of the bending punch contacts the top of the blank and causes it to bend and deform.

[0011] Preferably, the bottom of the wedge block is formed with a first inclined surface; the top of the clamping block is correspondingly provided with a second inclined surface that matches the first inclined surface, and the first inclined surface and the second inclined surface contact to form a sliding pair; when the mold is closed, the wedge block moves down with the upper template, and through the cooperation of the first inclined surface and the second inclined surface, the clamping block is driven to slide horizontally along the length of the slide rail towards the baffle, pressing the blank onto the baffle.

[0012] Preferably, the clamping block has an L-shaped groove on the side facing the baffle for vertically placing the billet; the baffle has a contact surface on the side facing the clamping block that contacts the middle of the billet.

[0013] Preferably, the height of the baffle is greater than the height of the clamping block.

[0014] Preferably, the height of the wedge block is greater than the height of the bending punch.

[0015] The beneficial technical effects achieved by this utility model are: the structure of this application is simple, and the pressing mechanism that is in direct contact with the blank is equipped with a clamping block and a baffle that can be detached separately, so as to realize the quick replacement of single parts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a bending and stamping die in this utility model; Figure 2 This is a schematic diagram showing the connection relationship between the wedge block and the clamping block in this utility model; Figure 3 This is an exploded structural diagram of the elastic tensioning mechanism in this utility model; Figure 4 This is a schematic diagram showing the connection relationship between the clamping block and the baffle in this utility model. Detailed Implementation

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Please see Figure 1-4 As shown in the figure, the purpose of this utility model is achieved through the following technical solution: a bending and stamping die, comprising an upper die plate 1 and a lower die plate 2, wherein: The lower template 2 is symmetrically provided with two slide rails 22 and a pressing mechanism 2 for fixing the blank 4; The pressing mechanism 2 includes a clamping block 23 and a baffle 21. The baffle 21 is fixed to one side of the two slide rails 22, and its bottom is detachably connected to the lower template 2 by bolts. The clamping block 23 is slidably connected between the two slide rails 22. The upper template 1 is provided with a wedge block 12 that drives the clamping block 23 to slide horizontally toward the baffle 21. The wedge block 12 and the clamping block 23 form a sliding pair through their mutually cooperating inclined surfaces.

[0019] Furthermore, such as Figure 1 As shown, and in combination Figure 3 The lower template 2 is also provided with an elastic pulling mechanism 3. The elastic pulling mechanism 3 includes a base 31, which is fixedly connected to the other side of the two slide rails 22, and a through hole is radially opened on the base 31; a pin 33 is slidably connected to the through hole; one end of the pin 33 is a connecting end 35, which passes through the through hole and is connected to the clamping block 23, and the other end is a free end 34, which extends out of the base 31 from the through hole; a return spring 32 is sleeved on the surface of the free end 34, one end of the return spring 32 abuts against the end of the free end 34, and the other end abuts against the base 31. Accordingly, when the upper template 1 moves down, the wedge block 12 and the clamping block 23 are engaged through the contact of the first inclined surface 121 and the second inclined surface 231, driving the clamping block 23 to slide horizontally along the length of the slide rail 22 toward the baffle 21. At this time, the pin 33 is subjected to the tension of the clamping block 23, causing the return spring 32 to compress and deform. When the upper template 1 moves up, the wedge block 12 and the clamping block 23 separate. At the same time, the return spring 32 returns to its original state and drives the clamping block 23 to reset, making it convenient for the operator to take out the bent blank 4.

[0020] Furthermore, such as Figure 3 As shown, the connection between the connecting end 35 and the clamping block 23 is a threaded connection.

[0021] In addition, the upper template 1 is provided with a detachable bending punch 11, and the end of the bending punch 11 is provided with a bending cavity 110; the blank 4 is fixed vertically on the pressing mechanism 2, and its top 41 is suspended. When the upper template 1 and the lower template 2 are closed, the bending cavity 110 of the bending punch 11 contacts the top 41 of the blank 4 and causes it to bend and deform.

[0022] Furthermore, the bottom of the wedge block 12 is formed with a first inclined surface 121; the top of the clamping block 23 is correspondingly provided with a second inclined surface 231 that matches the first inclined surface 121, and the first inclined surface 121 and the second inclined surface 231 contact to form a sliding pair; when the mold is closed, the wedge block 12 moves down with the upper template 1, and through the contact and cooperation of the first inclined surface 121 and the second inclined surface 231, the clamping block 23 is driven to slide horizontally along the length of the slide rail 22 toward the baffle 21, pressing the blank 4 onto the baffle 21.

[0023] Furthermore, such as Figure 3-4 As shown, the clamping block 23 has an L-shaped groove 232 on the side facing the baffle 21 for vertical placement of the billet 4; the baffle 21 has a contact surface 211 on the side facing the clamping block that contacts the middle of the billet 4. Accordingly, when the clamping block 23 is reset under the action of the reset spring 32, it can also move the billet 4 away from the baffle to complete the unloading.

[0024] Furthermore, such as Figure 1 As shown, the height of the baffle 21 is greater than the height of the clamping block 23. Accordingly, the baffle 21 acts as a limiter, restricting the downward movement distance of the bending punch 11 and ensuring precise bending and forming of the product.

[0025] Furthermore, such as Figure 1 As shown, the height of the wedge block 12 is greater than the height of the bending punch 11. Therefore, before the bending punch 11 contacts the blank 4, the clamping block 23 has already pressed the blank 4 against the baffle, improving the stability of the mold operation.

[0026] The specific operation is as follows: When the operator replaces the clamping block 23, first unscrew the bolts to remove the baffle, then loosen the pin 33 to separate the connecting end 35 of the pin 33 from the clamping block 23. Then move the clamping block 23 along the end of the slide rail 22 to disengage it from the slide rail 22. Finally, insert the new clamping block 23 between the two slide rails 22. The operation is convenient and reduces maintenance costs.

[0027] In summary, the present application has a simple structure. The pressing mechanism 2, which is in direct contact with the blank 4, is equipped with a clamping block 23 and a baffle 21 that can be detached separately, so as to realize the quick replacement of a single component.

[0028] The foregoing has provided a detailed description of a bending and stamping die provided in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only intended to help understand the core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea and method of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bending and stamping die, comprising an upper die and a lower die, characterized in that: The lower template is symmetrically provided with two slide rails and a pressing mechanism for fixing the blank; The pressing mechanism includes a clamping block and a baffle. The baffle is fixed to one side of two slide rails, and its bottom is detachably connected to the lower template by bolts. The clamping block is slidably connected between the two slide rails. The upper template is provided with a wedge-shaped block that drives the clamping block to slide horizontally in the direction of the baffle. The wedge-shaped block and the clamping block form a sliding pair through mutually cooperating inclined surfaces.

2. The bending and stamping die according to claim 1, characterized in that, The lower template is also provided with an elastic pulling mechanism, which includes a base. The base is fixedly connected to the other side of the two slide rails, and a through hole is radially opened on the base. A pin is slidably connected to the through hole. One end of the pin is a connecting end, which passes through the through hole and is connected to the clamping block. The other end is a free end, which extends out of the base from the through hole. A return spring is sleeved on the surface of the free end. One end of the return spring abuts against the end of the free end, and the other end abuts against the base.

3. A bending and stamping die according to claim 2, characterized in that, The connection between the connecting end and the clamping block is a threaded connection.

4. A bending and stamping die according to claim 1, characterized in that, The upper template is equipped with a detachable bending punch, and the end of the bending punch has a bending cavity. The blank is fixed vertically on the pressing mechanism with its top suspended. When the upper template and the lower template are closed, the bending cavity of the bending punch contacts the top of the blank and causes it to bend and deform.

5. A bending and stamping die according to claim 1, characterized in that, The bottom of the wedge block is formed with a first inclined surface; the top of the clamping block is provided with a second inclined surface that matches the first inclined surface, and the first inclined surface and the second inclined surface contact to form a sliding pair; when the mold is closed, the wedge block moves down with the upper template, and through the cooperation of the first inclined surface and the second inclined surface, the clamping block is driven to slide horizontally along the length of the slide rail towards the baffle, pressing the blank onto the baffle.

6. A bending and stamping die according to claim 1, characterized in that, The clamping block has an L-shaped groove on the side facing the baffle for vertically placing the billet; the baffle has a contact surface on the side facing the clamping block that contacts the middle of the billet.

7. A bending and stamping die according to claim 1, characterized in that, The height of the baffle is greater than the height of the clamping block.

8. A bending and stamping die according to claim 4, characterized in that, The height of the wedge block is greater than the height of the bending punch.

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