Front oxygen sensor support stamping die structure

Abstract

The invention relates to the field of dies, in particular to a front oxygen sensor support stamping die structure which comprises a fixed die and a movable die, and a punching mechanism, a bending mechanism, a rim charge cutting mechanism and a discharging mechanism are sequentially arranged between the fixed die and the movable die in the conveying direction of a material belt. The punching mechanism is used for punching various holes in different shapes and positions in a material belt, the rim charge cutting mechanism is used for accurately cutting off rim charges, the bending mechanism is used for gradually bending the material belt of a plane structure into the shape of a product, and the discharging mechanism is used for conveying the machined product out of a die. The wear rate of the contact surface of the mold is reduced.

Description

Technical Field

[0001] This application relates to the field of molds, and in particular to a stamping die structure for a front oxygen sensor bracket. Background Technology

[0002] With the rapid development of the automotive industry and the increasing maturity of vehicle emission control technology, the front oxygen sensor, as a key component in the engine management system, has a significant impact on engine performance and exhaust emission control due to its installation accuracy and stability. The front oxygen sensor bracket, as a crucial structural component for fixing the sensor, directly affects the sensor's installation quality and production costs through its manufacturing precision and efficiency.

[0003] The related technology discloses a punching die, including a pressing mechanism, comprising an upper film assembly, a pressing plate disposed on the upper film assembly, and a cutter holder connected to the upper film assembly via the pressing plate, wherein the upper film assembly is provided with a first through hole; a punching mechanism, comprising a first cutter assembly and a second cutter assembly disposed on the upper film assembly and abutting against each other, wherein there are two first cutter assemblies, respectively located at opposite ends of the pressing plate, and two second cutter assemblies, respectively located at the other opposite ends of the pressing plate; a base mechanism, comprising a base assembly, a contour block disposed on the base assembly for placing a shell, a first insert for punching with the first cutter assembly, a second insert for punching with the second cutter assembly, and a first guide post for insertion into the first through hole for guidance. The first cutting assembly includes a first fixing block disposed on a pressure plate; a first engaging member located on the side of the first fixing block near the insert holder, the end of the first engaging member away from the pressure plate having a first cutting surface and an engaging groove, wherein the first insert has a second cutting surface corresponding to the first cutting surface; a first fixing post, one end of which passes through the first fixing block and connects to the end of the first engaging member near the pressure plate, forming an engaging space for the first insert to be inserted, wherein the first fixing post is fitted with a first elastic member located at the end of the first fixing block away from the first engaging member; and a first cutting member, one end of which is fixed to the side of the first engaging member away from the first fixing block, the other end having a first concave surface, the first concave surface abutting and engaging with the insert holder, the edge of the first concave surface away from the pressure plate being the first cutting part for punching the shell.

[0004] During the stamping process, existing molds generate significant noise due to the direct hard impact between the upper and lower dies, affecting the working environment. Simultaneously, this hard impact accelerates mold wear, shortens mold lifespan, and increases production costs. Specifically, when the contact surface between the punch and the mold is planar, the impact force generated during stamping acts directly on the mold surface, resulting in high noise and rapid wear. Summary of the Invention

[0005] To address the issues of high noise and rapid wear caused by direct hard collision between the upper fixed die and the moving die in existing stamping dies, and to optimize the machining accuracy and production efficiency of the front oxygen sensor bracket, this application provides a stamping die structure for the front oxygen sensor bracket.

[0006] The technical solution for the stamping die structure of a front oxygen sensor bracket provided in this application is as follows: A stamping die structure for a front oxygen sensor bracket includes a fixed die and a moving die. A punching mechanism, a bending mechanism, an edge cutting mechanism, and a blanking mechanism are sequentially arranged between the fixed die and the moving die along the conveying direction of the strip. The punching mechanism is used to punch holes of various shapes and positions on the strip. The edge cutting mechanism is used to precisely cut off the edge material. The bending mechanism is used to gradually bend the planar strip into the shape of the product. The blanking mechanism is used to send the processed product out of the die.

[0007] By adopting the above technical solution, the mold structure integrates four functional mechanisms in sequence along the material conveying direction: punching hole, bending, edge cutting, and blanking. The fixed mold serves as a static reference surface to support the punching hole and bending guide, while the moving mold achieves motion guidance through the precise cooperation between the first guide post and the first through hole of the fixed mold. During the stamping process, the pressure plate in the pressure mechanism first contacts and presses the material strip, and then the inserter drives the first and second cutting blade assemblies. The first cutting surface of the first engaging member slides into contact with the second cutting surface of the first inserter, converting the vertical impact force into a horizontal component force. This, combined with the buffering effect of the first elastic member, reduces the collision intensity. At the same time, the punching mechanism achieves synchronous processing of different hole shapes through multi-station staggered punching, and the bending mechanism adopts progressive multi-stage bending to avoid material springback.

[0008] Optionally, the punching mechanism includes a first punching assembly, which includes a first upper mounting block, a second upper mounting block, and a first lower mounting block. The first upper mounting block and the second upper mounting block are both fixed to the lower surface of the moving mold, and a first punch is fixedly provided on both the first upper mounting block and the second upper mounting block. The first lower mounting block is fixed to the upper surface of the fixed mold, and a first insert and a second insert are fixedly provided on the first lower mounting block. The first insert and the second insert are both provided with first cutting holes, and the first punch corresponds one-to-one with the first cutting holes.

[0009] By adopting the above technical solution, the first upper mounting block and the second upper mounting block fixedly set on the lower surface of the moving mold form a dual-station punch carrier. Each mounting block carries an independent first punch. The first lower mounting block correspondingly set on the upper surface of the fixed mold forms a double punching hole base through the first insert and the second insert. When the moving mold moves downward, the two sets of first punches are simultaneously inserted into the first punching holes on the first insert and the second insert. The dual-station symmetrical layout disperses the single impact force. With the clearance fit between the punch and the insert and the hard chrome plating treatment on the surface of the insert, it is ensured that there are no burrs on the edge of the punching hole and the impact wear rate of the mold contact surface is reduced. At the same time, the mounting block facilitates quick replacement of worn parts, which significantly improves maintenance efficiency and processing stability.

[0010] Optionally, the punching mechanism further includes a second punching assembly, which includes two edge punching blocks. Both edge punching blocks are fixed on a second upper mounting block. The first insert has two through edge punching holes. The edge punching blocks and edge punching holes correspond one-to-one, and the edge punching blocks and edge punching holes slide together.

[0011] By adopting the above technical solution, the second punching assembly punches two spaced guide holes at the edge of the strip, with one side of the guide holes being open. In subsequent processing, the guide holes play a crucial positioning role. Because the strip needs to be continuously conveyed during continuous stamping production, the guide holes precisely match the specific positioning structure on the mold, ensuring accurate conveying of the strip within the mold and ensuring precise correspondence between the stamping positions at each station. For example, during bending operations in the bending mechanism and edge trimming operations in the edge cutting mechanism, the presence of the guide holes prevents deviations in the strip conveying process from affecting processing accuracy, thus ensuring the accuracy of the stamping positions at each station, greatly improving product processing quality and consistency, reducing scrap rates due to positional deviations, and enhancing overall production efficiency and economic benefits.

[0012] Optionally, the punching mechanism further includes a third punching assembly, which includes a first punching block and a third insert. The first punching block is fixed to the second upper mounting block and protrudes from the lower surface of the second upper mounting block. The third insert is fixed to the fixed mold and has a through first punching hole. The shape of the first punching block is adapted to the shape of the first punching hole. The first punching block and the first punching hole slide together for punching an intermediate isolation hole, which is located between two adjacent products.

[0013] By adopting the above technical solution, the first punching block is fixed to the second upper mounting block and protrudes from its lower surface. The third insert is fixed to the fixed mold and has a through first punching hole. The shape of the first punching block and the first punching hole are adapted and they slide together. When the punching hole is working, as the relevant components move, the first punching block slides into the first punching hole, which can accurately punch out the intermediate isolation hole located between two adjacent products.

[0014] Optionally, the punching mechanism further includes a fourth punching assembly, which includes a third upper mounting block, a second punch, and a second lower mounting block. The third upper mounting block is fixed to the lower surface of the moving mold, and the second punch is fixed to the fixed mold. The second lower mounting block is fixed to the upper surface of the lower support, and a second punching hole is correspondingly opened on the upper surface of the second lower mounting block. The second punch slides and engages with the second punching hole to punch a second circular hole.

[0015] By adopting the above technical solution, the third upper mounting block in the fourth punching assembly is fixed to the lower surface of the moving die, the second punch is fixed to the fixed die, and the second lower mounting block is fixed to the upper surface of the lower support with a second punching hole on its upper surface. The second punch slides into the second punching hole. During the die closing process, the moving die drives the third upper mounting block downwards. The second punch on the fixed die and the second punching hole on the second lower mounting block work together. By sliding the second punch into the second punching hole, the second circular hole of the workpiece is precisely punched, ensuring the accuracy and consistency of the punched hole and improving product quality.

[0016] Optionally, the punching mechanism further includes a fifth punching assembly, which includes a fourth upper mounting block, a second punching block, and a fourth insert. The fourth upper mounting block is fixed to the lower surface of the moving die, and the second punching block is fixed to the fourth upper mounting block. The fourth insert is fixed to the fixed die, and a second punching hole is provided on the fourth insert. The shape of the second punching block and the second punching hole are adapted to each other and they slide together to punch out an edge isolation hole. The edge isolation hole is located between two adjacent products, and one end of the edge isolation hole is connected to one end of the intermediate isolation hole.

[0017] By adopting the above technical solution, the fourth upper mounting block in the fifth punching hole group is fixed to the lower surface of the moving mold, the second punching block is mounted on it, and the fourth insert is fixed to the fixed mold and has a second punching hole. The shape of the second punching block and the second punching hole are adapted to each other and slide in fit. When the mold is closed, the moving mold drives the fourth upper mounting block and the second punching block to move down, and the second punching block slides into the second punching hole, thereby accurately punching out the edge isolation hole located between adjacent products and connected to the middle isolation hole at one end. This helps to rationally plan the layout between products, improve the accuracy and consistency of product processing, and ensure product quality.

[0018] Optionally, the bending mechanism includes multiple bending components arranged sequentially along the length of the mold structure; each bending component includes an upper bending block and a lower bending block, each upper bending block is fixed to the lower surface of the upper support, and each lower bending block is fixed to the surface of the fixed template, and the shapes of the upper bending blocks and lower bending blocks in different bending components are different, so that the planar strip is gradually bent into the shape of the product by the multiple bending components.

[0019] By adopting the above technical solution, the bending mechanism is equipped with multiple bending components arranged sequentially along the length of the mold structure. Each component includes an upper bending block fixed to the lower surface of the upper support and a lower bending block fixed to the surface of the fixed template. The upper and lower bending blocks of different components have different shapes. In actual processing, as the mold moves step by step, the strip passes through each bending component in sequence. The upper and lower bending blocks of different shapes cooperate with each other to perform progressive bending of the planar strip, ultimately bending the strip precisely into a shape that meets the product requirements. This effectively improves the accuracy and efficiency of bending and forming, and ensures the stability of product quality.

[0020] Optionally, the edge material cutting mechanism includes a first upper cutting block, a second upper cutting block, a positioning post, and a lower cutting block. The first and second upper cutting blocks are both fixed to the lower surface of the upper support. The height of the first upper cutting block is less than the height of the second upper cutting block. The second upper cutting block has an upper clearance groove for avoiding product clearance on the side near the first upper cutting block. One end of the positioning post passes through the first upper cutting block, and the other end extends out of the lower surface of the first upper cutting block. The lower cutting block is fixed to the surface of the fixed template. The lower cutting block has a positioning hole, and the positioning post slides into the positioning hole. The lower cutting block has a lower clearance groove and a clearance slope. The surface of the fixed template has a through second material discharge hole.

[0021] By adopting the above technical solution, in the edge material cutting mechanism, the first and second upper cutting blocks are fixed to the lower surface of the upper support and are at different heights. The second upper cutting block is provided with an upper clearance groove to avoid the product. One end of the positioning column passes through the first upper cutting block and extends out of its lower surface, slidingly engaging with the lower cutting block, which is fixed to the surface of the template and has a positioning hole, to achieve precise positioning. The lower cutting block is also provided with a lower clearance groove and a clearance slope, and the surface of the template has a through second discharge hole. During operation, the cooperation between the positioning column and the positioning hole ensures accurate cutting position. The upper cutting blocks at different heights work together, and with the clearance of the lower cutting block, the edge material can be effectively cut off. The edge material is smoothly discharged through the second discharge hole, ensuring the accuracy and efficiency of the cutting operation, and improving product quality and production stability.

[0022] Optionally, the fixed template is provided with a plurality of first discharge holes, the shapes of which may be the same or different, for discharging waste material generated by the punching mechanism; the fixed template is provided with a second discharge hole, which cooperates with the edge material cutting mechanism for discharging edge material waste material cut off by the edge material cutting mechanism.

[0023] By adopting the above technical solution, multiple blanking holes are specifically designed on the die plate. On one hand, multiple first blanking holes, which can be identical or different in shape, are provided. These first blanking holes correspond to the punching mechanism, allowing waste material generated during punching operations to be smoothly discharged through these first blanking holes, preventing waste accumulation from affecting punching accuracy and the normal operation of the die. On the other hand, second blanking holes are provided, which cooperate with the edge material cutting mechanism. When the edge material cutting mechanism removes edge material waste, the waste material can be discharged through the second blanking holes. This achieves effective classification and discharge of waste generated from different processes, ensuring the cleanliness of the die interior, improving the stability and reliability of die operation, and ultimately enhancing the processing quality of the product.

[0024] Optionally, the feeding mechanism includes a feeding chute, which is formed on the upper surface of one end of the fixed template.

[0025] By adopting the above technical solution, after the mold completes the product processing, the formed product can naturally slide down the upper surface of the fixed template to the unloading chute by its own gravity or the pushing force generated by the subsequent actions of the mold. Since the unloading chute has a certain inclination angle, the product will smoothly slide out of the mold along the chute, realizing automatic unloading. This simplifies the unloading process, eliminates the need for additional complex unloading drive devices, reduces mold costs and structural complexity, improves production efficiency, reduces manual intervention, and ensures the continuity and stability of production.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The punching mechanism achieves precise punching of holes of various shapes and positions through the coordinated work of multiple components. The first punching component adopts a dual-station symmetrical layout to disperse impact force, and with clearance fit and surface treatment, ensures the quality of punched holes and reduces wear; the second punching component utilizes symmetrically arranged edge punching blocks and punching holes to achieve precise removal of edge waste, while the guide bevel reduces vibration and improves processing stability; the third, fourth, and fifth punching components respectively punch the central isolation hole, the second round hole, and the edge isolation hole, with shape adaptation and sliding fit ensuring the accuracy of punched holes; 2. The bending mechanism employs multiple bending components arranged sequentially along the length of the mold. Each component has upper and lower bending blocks of varying shapes, enabling progressive bending of the flat strip material. This effectively prevents material springback and improves the accuracy and efficiency of bending. The edge material cutting mechanism, through the cooperation of upper cutting blocks of different heights, positioning posts, and lower cutting blocks, achieves precise positioning and cutting of the edge material. Simultaneously, the avoidance groove and avoidance slope prevent damage to the product during cutting, ensuring the accuracy and efficiency of the cutting operation. 3. The multiple first and second blanking holes on the fixed template are used to discharge the waste generated by the punching mechanism and the edge cutting mechanism, respectively, which realizes the effective classification and discharge of waste and avoids the impact of waste accumulation on the mold accuracy and normal operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the stamping die structure of the front oxygen sensor bracket in the embodiments of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the moving model in the embodiments of this application.

[0029] Figure 3 This is a schematic diagram of the fixed mold structure in an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the material strip structure in an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the template in the embodiments of this application.

[0032] Explanation of reference numerals in the attached figures: 1. Strip material; 11. First circular hole; 12. Guide hole; 13. Second circular hole; 14. Center isolation hole; 15. Edge isolation hole; 2. Fixed mold; 21. Base; 211. Base plate; 212. Support plate; 22. Fixed template; 221. First blanking hole; 222. Second blanking hole; 3. Moving mold; 31. Top plate; 32. Moving template; 4. Punching mechanism; 41. Upper support; 42. Lower support; 43. First punching assembly; 431. First upper mounting block; 432. Second upper mounting block; 433. First lower mounting block; 434. First punch; 435. First insert; 436. Second insert; 437. First punching hole; 44. Second punching assembly; 441. Edge punching block; 442. Edge 45. Third punching assembly; 451. First punching block; 452. Third insert; 453. First punching hole; 46. Fourth punching assembly; 461. Third upper mounting block; 462. Second punch; 463. Second lower mounting block; 464. Second punching hole; 47. Fifth punching assembly; 471. Fourth upper mounting block; 472. Second punching block; 473. Fourth insert; 474. Second punching hole; 5. Bending mechanism; 51. Bending assembly; 511. Upper bending block; 512. Lower bending block; 6. Edge material cutting mechanism; 61. First upper cutting block; 62. Second upper cutting block; 63. Positioning post; 64. Lower cutting block; 641. Lower clearance groove; 642. Clearance slope; 7. Material discharge chute. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0035] This application discloses a stamping die structure for a front oxygen sensor bracket. (Refer to...) Figure 1 , Figure 2 and Figure 3 The front oxygen sensor bracket stamping die structure includes a fixed die 2 and a moving die 3. A punching mechanism 4, a bending mechanism 5, an edge material cutting mechanism 6 and a blanking mechanism are arranged sequentially between the fixed die 2 and the moving die 3 along the conveying direction of the material strip 1.

[0036] Reference Figure 1The fixed mold 2 includes a base 21 and a fixed template 22. The base 21 includes a base plate 211 and multiple support plates 212. The bottom ends of the multiple support plates 212 are fixedly connected to the upper surface of the base plate 211. The multiple support plates 212 are arranged along the length of the mold, and the upper surfaces of the multiple support plates 212 are fixedly connected to the lower surface of the fixed template 22. The moving mold 3 includes a top plate 31 and a moving template 32, which are fixedly connected.

[0037] Reference Figure 2 and Figure 3 The punching mechanism 4 is located between the moving template 32 and the fixed template 22. The punching mechanism 4 includes an upper support 41 and a lower support 42. The upper support 41 is fixed to the lower surface of the moving template 32, and the lower support 42 is fixed to the upper surface of the fixed template 22. A first punching assembly 43, a second punching assembly 44, a third punching assembly 45, and a fourth punching assembly 46 are sequentially arranged between the upper support 41 and the lower support 42 along the length of the mold structure. Reference Figure 2 , Figure 3 and Figure 4 The first punching assembly 43 includes a first upper mounting block 431, a second upper mounting block 432, and a first lower mounting block 433. Both the first upper mounting block 431 and the second upper mounting block 432 are fixed to the lower surface of the upper support 41. A first punch 434 is fixedly mounted on both the first upper mounting block 431 and the second upper mounting block 432. The first lower mounting block 433 is fixed to the surface of the lower support 42. A first insert 435 and a second insert 436 are fixedly mounted on the first lower mounting block 433. Both the first insert 435 and the second insert 436 have first cutting holes 453. The first punch 434 corresponds to the first cutting holes 453 and is used to punch two first circular holes 11 on the strip 1. The first punching assembly 43 achieves efficient and precise circular hole punching, improving production efficiency and product quality.

[0038] Reference Figure 2 and Figure 3 The second punching assembly 44 includes two edge punching blocks 441, both of which are fixed to the second upper mounting block 432. The first insert 435 has two through edge punching holes 442. Each edge punching block 441 corresponds to one edge punching hole 442, and these holes are used to punch two spaced guide holes 12 at the edge of the strip 1. One side of each guide hole 12 is open. These guide holes 12 play an important positioning role in subsequent processing, ensuring accurate conveying of the strip in the mold and the accuracy of the punching positions at each station.

[0039] Reference Figure 2 , Figure 3 and Figure 4The third punching assembly 45 includes a first punching block 451 and a third insert 452. The first punching block 451 is fixed to the second upper mounting block 432 and protrudes from the lower surface of the second upper mounting block 432. The third insert 452 is fixed to the lower support 42. A through first punching hole 453 is formed in the center of the third insert 452. The shape of the first punching block 451 is adapted to the shape of the first punching hole 453, and it is used to punch a through intermediate isolation hole 14 on the strip 1. The intermediate isolation hole 14 is located between two adjacent products. The punching of the intermediate isolation hole 14 effectively separates adjacent products, providing convenience for subsequent processing and unloading.

[0040] Reference Figure 2 , Figure 3 and Figure 4 The fourth punching assembly 46 includes a third upper mounting block 461, a second punch 462, and a second lower mounting block 463. The third upper mounting block 461 is fixed to the lower surface of the upper support 41, and the second punch 462 is fixed to the third upper mounting block 461. The second lower mounting block 463 is fixed to the upper surface of the lower support 42, and a second cutting hole 474 is correspondingly opened on the upper surface of the second lower mounting block 463. The second punch 462 corresponds to the second cutting hole 474 and is used to punch out a second round hole 13 on the strip 1. The fourth punching assembly 46 further enriches the punching hole function and meets the diverse hole processing needs of products.

[0041] Reference Figure 2 , Figure 3 and Figure 4 The fifth punching assembly 47 includes a fourth upper mounting block 471, a second punching block 472, and a fourth insert 473. The fourth upper mounting block 471 is fixed to a small surface of the upper support 41, and the second punching block 472 is fixed to the upper part of the fourth upper mounting block 471. The fourth insert 473 is fixed to the lower support 42, and a second punching hole 474 is provided on the fourth insert 473. The shape of the second punching block 472 is adapted to the shape of the second punching hole 474, and the two slide in fit, for punching edge isolation holes 15 on the strip 1. The edge isolation holes 15 are located between two adjacent products, and one end of the edge isolation hole 15 is connected to one end of the intermediate isolation hole 14. The fifth punching assembly ensures complete separation between products, improving material feeding efficiency and product qualification rate. At the same time, the sliding fit structure reduces friction and wear during the punching process, extending the service life of the mold.

[0042] Reference Figure 5 The fixed template 22 has multiple through-holes 221, each corresponding to a punching component. The shapes of the through-holes 221 can be the same or different. The through-holes 221 facilitate the discharge of punching waste, keeping the inside of the mold clean and reducing mold failures caused by waste accumulation.

[0043] Reference Figure 2 and Figure 3 The bending mechanism 5 includes multiple bending components 51, which are arranged sequentially along the length of the mold structure. Each bending component 51 includes an upper bending block 511 and a lower bending block 512. Each upper bending block 511 is fixed to the lower surface of the upper support 41, and each lower bending block 512 is fixed to the surface of the fixed template 22. The shapes of the upper bending block 511 and the lower bending block 512 in different bending components 51 are all different. By using multiple bending components 51, the planar strip 1 is gradually bent into the shape of the product. Multiple bending operations enable precise forming of complex-shaped products, improving the structural strength and appearance quality of the product. Reference Figure 2 and Figure 3 The edge cutting mechanism 6 includes a first upper cutting block 61, a second upper cutting block 62, a positioning post 63, and a lower cutting block 64. Both the first and second upper cutting blocks 61 and 62 are fixed to the lower surface of the upper support 41. The height of the first upper cutting block 61 is less than the height of the second upper cutting block 62. The second upper cutting block 62 has an upper clearance groove for avoiding product obstructions on its side near the first upper cutting block 61. One end of the positioning post 63 passes through the first upper cutting block 61, and the other end extends out of the lower surface of the first upper cutting block 61. The lower cutting block 64 is fixed to the surface of the fixed template 22. A positioning hole 65 is provided on the lower cutting block 64, and the positioning post 63 slides into the positioning hole 65. The lower cutting block 64 also has a lower clearance groove 641 and a clearance ramp 642. A through second dropping hole 222 is also provided on the surface of the fixed template 22. The edge cutting mechanism 6 ensures precise removal of edge material and improves the edge quality of the product. The positioning post 63 and the avoidance groove further enhance the stability and accuracy of the cutting process.

[0044] Reference Figure 3 The feeding mechanism includes a feeding chute 7, which is located on the upper surface of one end of the fixed template 22. Because of the noise generated by the upward and downward stamping, the simultaneous deformation and hard impact produce a lot of noise. Therefore, the mold uses irregularly shaped punches and structures with front-to-back and height differences to create a time difference during stamping, thus reducing excessive noise. By optimizing the structure of the contact surface between the punch and the mold, the noise level during the stamping process is effectively reduced, improving the working environment. Simultaneously, it reduces mold wear caused by hard impacts, improving the mold's service life and stability.

[0045] The implementation principle of the above embodiment is as follows: The stamping die structure of the front oxygen sensor bracket in this embodiment achieves continuous and precise processing of the strip 1 through the reasonable layout of the fixed die 2, the moving die 3, and various processing mechanisms. The multiple punching components of the punching mechanism 4 work together to punch holes of various shapes and positions; the bending mechanism 5 uses multiple bending components 51 of different shapes for progressive bending, which improves the bending accuracy; the edge material cutting mechanism 6 accurately cuts the edge material through the cooperation of positioning guide and double-height cutting block group; the material discharge channel on the fixed die plate 22 realizes the effective classification and discharge of waste material; the material discharge chute 7 of the material discharge mechanism realizes automatic material discharge, which reduces noise and wear compared with existing dies, improves processing accuracy and production efficiency, and meets the high requirements of the automotive industry for the manufacturing of front oxygen sensor brackets.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamping die structure for a front oxygen sensor bracket, characterized in that: The mold includes a fixed mold (2) and a moving mold (3). A punching mechanism (4), a bending mechanism (5), an edge cutting mechanism (6) and a blanking mechanism are arranged sequentially between the fixed mold (2) and the moving mold (3) along the conveying direction of the strip (1). The punching mechanism (4) is used to punch holes of various shapes and positions on the strip (1). The edge cutting mechanism (6) is used to precisely cut off the edge material. The bending mechanism (5) is used to gradually bend the planar strip (1) into the shape of the product. The blanking mechanism is used to send the processed product out of the mold.

2. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The punching mechanism (4) includes a first punching assembly (43), which includes a first upper mounting block (431), a second upper mounting block (432), and a first lower mounting block (433). The first upper mounting block (431) and the second upper mounting block (432) are both fixed to the lower surface of the moving mold (3). A first punch (434) is fixedly provided on both the first upper mounting block (431) and the second upper mounting block (432). The first lower mounting block (433) is fixed to the upper surface of the fixed mold (2). A first insert (435) and a second insert (436) are fixedly provided on the first lower mounting block (433). A first punching hole (437) is provided on both the first insert (435) and the second insert (436). The first punch (434) corresponds one-to-one with the first punching hole (437).

3. The stamping die structure for a front oxygen sensor bracket according to claim 2, characterized in that: The punching mechanism (4) further includes a second punching assembly (44), which includes two edge punching blocks (441). Both edge punching blocks (441) are fixed on a second upper mounting block (432). Two through edge punching holes (442) are correspondingly opened on the first insert (435). The edge punching blocks (441) and edge punching holes (442) correspond one-to-one, and the edge punching blocks (441) and edge punching holes (442) slide in cooperation.

4. The stamping die structure for a front oxygen sensor bracket according to claim 3, characterized in that: The punching mechanism (4) further includes a third punching assembly (45), which includes a first punching block (451) and a third insert (452). The first punching block (451) is fixed to the second upper mounting block (432) and protrudes from the lower surface of the second upper mounting block (432). The third insert (452) is fixed to the fixed mold (2). The third insert (452) has a through first punching hole (437). The shape of the first punching block (451) is adapted to the shape of the first punching hole (437). The first punching block (451) and the first punching hole (437) slide to fit together for punching an intermediate isolation hole (14). The intermediate isolation hole (14) is located between two adjacent products.

5. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The punching mechanism (4) further includes a fourth punching assembly (46), which includes a third upper mounting block (461), a second punch (462), and a second lower mounting block (463). The third upper mounting block (461) is fixed to the lower surface of the moving mold (3), and the second punch (462) is fixed to the fixed mold (2). The second lower mounting block (463) is fixed to the upper surface of the lower support (42), and a second punching hole (464) is correspondingly opened on the upper surface of the second lower mounting block (463). The second punch (462) slides and engages with the second punching hole (464) to punch the second round hole (13).

6. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The punching mechanism (4) further includes a fifth punching assembly (47), which includes a fourth upper mounting block (471), a second punching block (472), and a fourth insert (473). The fourth upper mounting block (471) is fixed to the lower surface of the moving mold (3), and the second punching block (472) is fixed to the fourth upper mounting block (471). The fourth insert (473) is fixed to the fixed mold (2), and a second punching hole (464) is provided on the fourth insert (473). The shape of the second punching block (472) and the second punching hole (464) are adapted to each other and the two slide together to punch out an edge isolation hole (15). The edge isolation hole (15) is located between two adjacent products, and one end of the edge isolation hole (15) is connected to one end of the middle isolation hole (14).

7. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The bending mechanism (5) includes multiple bending components (51), which are arranged sequentially along the length of the mold structure. Each bending component (51) includes an upper bending block (511) and a lower bending block (512). Each upper bending block (511) is fixed to the lower surface of the upper support (41), and each lower bending block (512) is fixed to the surface of the fixed mold (2) plate. The shapes of the upper bending block (511) and the lower bending block (512) in different bending components (51) are different. The planar strip (1) is gradually bent into the shape of the product by multiple bending components (51).

8. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The edge cutting mechanism (6) includes a first upper cutting block (61), a second upper cutting block (62), a positioning post (63), and a lower cutting block (64). The first upper cutting block (61) and the second upper cutting block (62) are both fixed to the lower surface of the upper support (41). The height of the first upper cutting block (61) is less than the height of the second upper cutting block (62). The second upper cutting block (62) has an upper clearance groove for avoiding product clearance on the side near the first upper cutting block (61). The positioning post (63) 3) One end is inserted through the first upper cutting block (61), and the other end extends out of the lower surface of the first upper cutting block (61); the lower cutting block (64) is fixed to the surface of the fixed mold (2) plate, the lower cutting block (64) is provided with a positioning hole 65, and the positioning pin (63) slides with the positioning hole 65; the lower cutting block (64) is provided with a lower clearance groove (641) and a clearance slope (642), and the surface of the fixed mold (2) plate is provided with a through second blanking hole (222).

9. The stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The fixed mold (2) plate is provided with a plurality of first blanking holes (221), the shapes of which may be the same or different, for discharging the waste material generated by the punching mechanism (4); the fixed mold (2) plate is provided with a second blanking hole (222), which cooperates with the edge material cutting mechanism (6) for discharging the edge material waste material cut off by the edge material cutting mechanism (6).

10. A stamping die structure for a front oxygen sensor bracket according to claim 1, characterized in that: The feeding mechanism includes a feeding chute (7), which is located on the upper surface of one end of the fixed mold plate (2).

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