Automobile outer panel stamping die

Abstract

The utility model relates to stamping die technical field discloses an automobile covering piece outer plate stamping die, including bottom die, the module of sliding installation in bottom die inner wall and upper die, the extrusion plate is fixed in upper die inner wall, an automobile covering piece outer plate stamping die still includes fixing mechanism and positioning mechanism, fixing mechanism includes fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die for an automotive body panel. Background Technology

[0002] Automotive body panels are an important component of the car body. They have complex shapes and require high precision. In the automotive manufacturing process, stamping dies are usually used to stamp metal sheets to obtain the required shape of the body panels.

[0003] Existing automotive body panel stamping dies typically have an integral core or punch structure, meaning one die set can only produce a specific model of body panel. When producing body panels of different shapes or for different car models, the entire stamping die set must be replaced, resulting in long production preparation time, high die storage and manufacturing costs, and poor production flexibility. Furthermore, during the stamping of large body panels, the die is subjected to enormous stamping and lateral forces. Under such immense external forces, the core or module of the existing die is not sufficiently stable, leading to slight displacement or vibration. This displacement directly reduces the dimensional accuracy of the stamped product, affecting assembly quality. Additionally, when positioning large metal sheets in the die, manual labor or simple limiting blocks are used, making the positioning process cumbersome and difficult to guarantee accuracy. If the metal sheet is not precisely placed in the predetermined position in the die, it will tilt or slide during stamping, resulting in uneven edges and corners, or even tearing or wrinkling, causing material waste and reduced yield.

[0004] Therefore, this utility model proposes a stamping die for automotive body panels to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of poor mold replacement flexibility, high cost, and low precision of finished products caused by module misalignment and inaccurate positioning of stamping plate during the stamping process in the existing automotive body panel stamping die, this utility model aims to provide an automotive body panel stamping die with improved structure that can effectively solve the above problems.

[0006] This utility model provides a stamping die for an automotive body panel, comprising: a bottom die, a module, an upper die, a fixing mechanism, and a positioning mechanism.

[0007] The inner wall of the upper mold is fixed with an extrusion plate.

[0008] Furthermore, a second slider is fixed to the bottom of the module, and a third groove is provided at the bottom of the inner wall of the bottom mold. The module is installed on the inner wall of the bottom mold by sliding the second slider into the third groove. The fixing mechanism includes a first fixing plate and a second fixing plate disposed at the front end of the bottom mold. The first fixing plate and the second fixing plate can slide towards each other and engage with each other to abut and fix the module. The positioning mechanism includes a slide rail and a T-block fixed to the left and right sides of the top of the bottom mold. The slide rail and the T-block are used to position the stamping plate.

[0009] Preferably, the front end of the bottom mold is provided with a sliding groove 1 and a sliding groove 2, and the bottom ends of the fixing plate 1 and the fixing plate 2 are each fixed with a slider 1. The slider 1 slides on the inner wall of the sliding groove 2, and the fixing plate 1 and the fixing plate 2 slide on the inner wall of the sliding groove 1 at the left and right ends of the bottom mold, respectively.

[0010] Preferably, the bottom end of the inner wall of the first slide is connected to the top end of the inner wall of the second slide.

[0011] Preferably, the first fixing plate has a slot on its right end and the second fixing plate has an outer groove on its left end. The second fixing plate also includes a locking block. The right end of the locking block rotates in the inner wall of the outer groove. The locking block is used to engage in the slot when the first fixing plate and the second fixing plate come into contact.

[0012] Preferably, the front end of the slide rail is provided with a second slot, and the bottom end of the outer wall of the T-shaped block slides into the inner wall of the second slot.

[0013] Preferably, the second slot extends from the top of the slide rail to the bottom of the slide rail.

[0014] Preferably, the front end of the inner wall of the slide rail is treated with a right angle.

[0015] Preferably, the bottom end of the upper mold is provided with an outer groove II, the size and position of which correspond to the slide rail, and is used to accommodate the slide rail when the upper mold is pressed down.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem of high cost and poor flexibility in the prior art of stamping dies due to their simple structure and the need to replace the entire die when changing different models of cover parts by setting up replaceable modules and installing the modules in the sliding grooves on the inner wall of the bottom die via sliders. It achieves the effect of quick module replacement, multi-purpose die, effective reduction of production costs and improvement of production flexibility.

[0018] 2. This utility model, by setting up a fixing mechanism and a positioning mechanism, uses the fixing plate in the fixing mechanism to lock and hold the module from the front, while the slide rail and T-block in the positioning mechanism fix the stamping plate laterally and forward. This solves the problems in the prior art where the module will shift due to lateral force during the stamping process, and the stamping plate will tilt and be inaccurately positioned when placed. It achieves the effect of ensuring that the module and the stamping plate remain absolutely stable during the stamping process, effectively preventing the finished product size deviation and uneven edges and corners, thereby significantly improving the yield and product accuracy. Attached Figure Description

[0019] Figure 1 This is a perspective view of a stamping die for an automotive body panel according to the present invention.

[0020] Figure 2 This is a cross-sectional view of the upper die of a stamping die for an automotive body panel, as proposed in this utility model.

[0021] Figure 3 This is an exploded view of the fixing plate 2 of the stamping die for the outer panel of an automotive body panel according to this utility model;

[0022] Figure 4 This is a cross-sectional view of the fixing plate 2 of the stamping die for the outer panel of an automotive body panel according to the present invention;

[0023] Figure 5 This is an exploded view of a module of a stamping die for an automotive body panel according to the present invention.

[0024] Figure 6 This is a cross-sectional view of the bottom die of a stamping die for an automotive body panel, as proposed in this utility model.

[0025] Legend:

[0026] 1. Bottom mold; 2. Module; 3. Upper mold; 4. Extrusion plate; 5. Fixing mechanism; 501. Fixing plate one; 502. Fixing plate two; 503. Slide groove one; 504. Slider one; 505. Slide groove two; 506. Slot one; 507. Slot block; 508. Outer groove one; 6. Positioning mechanism; 601. Slide rail; 602. Outer groove two; 603. Slot two; 604. T-block; 7. Slider two; 8. Slide groove three. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 6 This utility model provides a stamping die for an automotive body panel, which aims to solve the problems of poor die replacement flexibility, displacement of module 2 during stamping, and uneven edges and corners of the finished product due to inaccurate positioning of the stamping plate in the prior art.

[0030] like Figure 1 , Figure 2 and Figure 6 As shown, a stamping die for an automotive body panel includes a bottom die 1, a module 2 slidably mounted on the inner wall of the bottom die 1, and an upper die 3 disposed above the bottom die 1. The bottom die 1 serves as the mounting base for the entire device. The module 2 defines the forming shape of the stamping plate, and the upper die 3 drives the extrusion plate 4 to press down for shaping. To achieve the sliding installation of the module 2 within the bottom die 1, a slider 2 7 is fixed to the bottom of the module 2, and a corresponding groove 3 8 is provided on the bottom of the inner wall of the bottom die 1. The slider 2 7 slides within the groove 3 8, thereby preventing the module 2 from detaching from the bottom die 1 when sliding on the inner wall of the bottom die 1. The upper die 3... An extrusion plate 4 is fixed to the wall. The shape of the extrusion plate 4 matches the outer wall of the module 2. When the bottom end of the extrusion plate 4 contacts the top end of the stamping plate, the stamping plate is driven by the upper die 3 to shape the outer wall of the module 2. A stamping die for an automotive body panel also includes a fixing mechanism 5 for locking the module 2 and a positioning mechanism 6 for fixing the stamping plate. The fixing mechanism 5 ensures that the module 2 will not shift during the stamping process, and the positioning mechanism 6 ensures that the stamping plate is accurately positioned before stamping. The fixing mechanism 5 includes a fixing plate 501 and a fixing plate 502 disposed at the front end of the bottom die 1. Figure 3 and Figure 4As shown, to enable the fixed plate 501 and the fixed plate 502 to slide, the front end of the bottom mold 1 is provided with a sliding groove 503 and a sliding groove 505. A slider 504 is fixed to the bottom end of both the fixed plate 501 and the fixed plate 502. The slider 504 slides on the inner wall of the sliding groove 505. The fixed plate 501 slides on the inner wall of the sliding groove 503 at the left end of the bottom mold 1, and the fixed plate 502 slides on the inner wall of the sliding groove 503 at the right end of the bottom mold 1. The bottom end of the inner wall of the sliding groove 503 is connected to the top end of the inner wall of the sliding groove 505, thereby avoiding... Fixing plates 501 and 502 are separated from their sliding tracks. Fixing plate 501 has a slot 506 on its right end, and fixing plate 502 has an outer groove 508 on its left end. Fixing plate 502 also includes a locking block 507. The right end of the locking block 507 rotates within the inner wall of the outer groove 508. When the right end of fixing plate 501 contacts the left end of fixing plate 502, the locking block 507 engages in the slot 506, thereby connecting and fixing fixing plate 501 and fixing plate 502, and abutting and fixing the front end of module 2. Figure 5 As shown, the positioning mechanism 6 includes a slide rail 601 and a T-block 604 fixed on the left and right sides of the top of the bottom mold 1. The slide rail 601 and the T-block 604 are used to position the stamping plate.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4The fixing mechanism 5 includes a fixing plate 501 and a fixing plate 502 disposed at the front end of the bottom mold 1. To achieve sliding installation of the fixing plate 501 and the fixing plate 502, the front end of the bottom mold 1 is provided with a sliding groove 503 and a sliding groove 505. The sliding groove 503 is opened along the left-right direction of the front end of the bottom mold 1, and the sliding groove 505 is disposed below the sliding groove 503 and parallel to it. The bottom ends of the fixing plate 501 and the fixing plate 502 are both fixed with a slider 504. The shape and size of the slider 504 are adapted to the inner wall of the second slide groove 505. The first slider 504 slides on the inner wall of the second slide groove 505. The first fixed plate 501 slides on the inner wall of the first slide groove 503 at the left end of the bottom mold 1, and the second fixed plate 502 slides on the inner wall of the first slide groove 503 at the right end of the bottom mold 1. To prevent the first fixed plate 501 and the second fixed plate 502 from deviating from the sliding track, the bottom end of the inner wall of the first slide groove 503 is connected to the top end of the inner wall of the second slide groove 505. The locking of the second fixing plate 502 involves a slot 506 on the right end of the first fixing plate 501 and an outer groove 508 on the left end of the second fixing plate 502. The second fixing plate 502 also includes a locking block 507, the right end of which rotates within the inner wall of the outer groove 508. The shape of the free end of the locking block 507 is adapted to the slot 506. In the assembled state, when module 2 slides to the rear end of the inner wall of the bottom mold 1, the first fixing plate 501 and the second fixing plate 502 slide towards each other until... The right end of the first fixing plate 501 contacts the left end of the second fixing plate 502. The locking block 507 is lifted and rotated, so that the free end of the locking block 507 is engaged in the first locking slot 506, thereby connecting and fixing the first fixing plate 501 and the second fixing plate 502. The rear end faces of the first fixing plate 501 and the second fixing plate 502 abut against and fix the front end of the module 2. This sliding plate locking structure ensures that the module 2 cannot be displaced in the front-back direction when subjected to the punching force of the extrusion plate 4.

[0032] Please refer to Figure 1 , Figure 5 and Figure 6The core structure of the positioning mechanism 6 is described in detail below. The positioning mechanism 6 includes slide rails 601 and T-blocks 604 fixed to the left and right sides of the top of the bottom mold 1. The slide rails 601 are fixed to the left and right sides of the top of the bottom mold 1 by bolts or welding. The inner wall of the slide rails 601 is used as a lateral positioning reference for the stamping plate. The front end of the inner wall of the slide rails 601 is treated with a right angle to avoid the stamping plate colliding with the front end of the inner wall of the slide rails 601 and causing damage to the corners when it is inserted. In order to achieve the front and rear positioning of the stamping plate, the front end of the slide rails 601 is provided with a second slot 603. The second slot 603 extends from the top end of the slide rails 601 to the bottom end of the slide rails 601. The shape of the rod part of the T-block 604, i.e., the bottom end of the outer wall, is... The dimensions of the stamping plate are adapted to the inner wall of the slot 603. In the assembled state, when the stamping plate is placed on the top of the bottom die 1 and its rear end contacts the rear end of the inner wall of the two slide rails 601, the operator holds the top of the T-block 604 and slides the bottom end of the outer wall of the T-block 604 into the inner wall of the slot 603. The T-block 604 passes through the inner wall of the slide rail 601, and the rod of the T-block 604 fixes the front end position of the stamping plate. This positioning structure of the side rails and the T-block ensures that the stamping plate is placed in a precise predetermined position before stamping, avoiding uneven edges and corners of the finished product due to tilting or movement of the stamping plate during stamping. To ensure that the upper die 3 does not interfere with the positioning mechanism 6 when it presses down, please refer to... Figure 2 The bottom end of the upper mold 3 is provided with an outer groove 602. The size and position of the outer groove 602 correspond to the slide rail 601. When the upper mold 3 is pressed down, the outer groove 602 is used to accommodate the slide rail 601.

[0033] As a preferred embodiment, to ensure stable sliding of fixing plate 501 and fixing plate 502 and prevent them from falling off, please refer to... Figure 1 and Figure 3 The bottom mold 1 has a sliding groove 503 and a sliding groove 505 at its front end. The sliding groove 503 is horizontally opened along the left and right direction of the front end of the bottom mold 1. The sliding groove 505 is set below the sliding groove 503 and parallel to it. The bottom ends of the fixing plate 501 and the fixing plate 502 are both fixed with sliders 504. The cross-sectional shape of the slider 504 slides on the inner wall of the sliding groove 505. The main bodies of the fixing plate 501 and the fixing plate 502 slide on the inner walls of the sliding groove 503 at the left and right ends of the bottom mold 1, respectively. The bottom end of the inner wall of the sliding groove 503 is connected to the top end of the inner wall of the sliding groove 505. The slider 504 is confined within the connected sliding grooves 503 and 505. This double sliding groove matching and limiting structure ensures that the fixing plate 501 and the fixing plate 502 can be accurately guided when they move towards each other, and will not detach from the bottom mold 1.

[0034] As another preferred embodiment, in order to achieve reliable locking of fixing plate 501 and fixing plate 502, please refer to... Figure 3 and Figure 4The first fixing plate 501 has a slot 506 on the contact surface at the right end, and the second fixing plate 502 has an outer groove 508 on the left end. The outer groove 508 penetrates the left side wall of the second fixing plate 502. The second fixing plate 502 also includes a locking block 507. The right end of the locking block 507 is pivotally connected to the inner wall of the outer groove 508 and rotates. The free end of the locking block 507 is used to lock into the slot 506 by rotation when the first fixing plate 501 and the second fixing plate 502 slide in contact. This locking method of the locking block 507 and the slot is simple in structure, easy to operate, and can firmly connect and fix the two fixing plates.

[0035] As another preferred embodiment, in order to achieve rapid positioning and locking of the stamping plate, please refer to... Figure 1 and Figure 5 The positioning mechanism 6 has a slot 603 at the front end of the slide rail 601. The bottom end of the outer wall of the T-block 604 slides into the inner wall of the slot 603. More preferably, the slot 603 extends vertically from the top end of the slide rail 601 to the bottom end of the slide rail 601. The T-block 604 can be inserted into the slot 603 from top to bottom and pass through the inner wall of the slide rail 601. The rod of the T-block 604 is used to abut against the front edge of the stamping plate, and the head of the T-block 604 rests on the top surface of the slide rail 601 to fix the stamping plate.

[0036] As another preferred embodiment, to facilitate the insertion of the stamping plate and prevent damage to the edges and corners, please refer to... Figure 5 The inner wall of slide rail 601 is treated with a right angle, that is, the inner wall of slide rail 601 is at a 90-degree angle to the front end face, forming an opening that facilitates insertion and avoids the stamping plate from colliding with the inner wall of slide rail 601 when it is inserted.

[0037] As another preferred embodiment, to avoid interference between the upper mold 3 and the positioning mechanism 6, please refer to... Figure 2 The bottom end of the upper die 3 is provided with an outer groove 602. The size and position of the outer groove 602 correspond to the slide rail 601. When the upper die 3 is pressed down, the outer groove 602 is used to accommodate the overall outline of the slide rail 601 to ensure that the stamping action is carried out smoothly.

[0038] Working principle: When stamping automotive body panels using a mold, module 2 is first installed and fixed. The operator slides module 2 into the inner wall of the bottom mold 1. Module 2 is fixedly connected to slider 7 at its bottom end. Correspondingly, a groove 8 is provided at the bottom of the inner wall of the bottom mold 1. By pushing module 2, the operator causes slider 7 to slide on the inner wall of groove 8, thus guiding module 2 to slide on the inner wall of the bottom mold 1. When the rear end of module 2 contacts the rear end of the inner wall of the bottom mold 1, it is fixed by the fixing mechanism 5. At this time, the operator slides the fixing plate 501 and fixing plate 502 set at the front end of the bottom mold 1. Since the front end of the bottom mold 1 has a sliding groove 503 and a sliding groove 505, the bottom end of the fixing plate 501 and fixing plate 502 are both fixed with a slider 504. The slider 504 slides on the inner wall of the sliding groove 505. At the same time, the fixing plate 501 and fixing plate 502 slide on the inner wall of the sliding groove 503. The bottom end of the inner wall of the sliding groove 503 is connected to the top end of the inner wall of the sliding groove 505, thereby preventing the fixing plate 501 and the fixing plate 502 from sliding together. When fixed plate 2 502 disengages from its sliding trajectory, and fixed plate 1 501 and fixed plate 2 502 slide towards each other until they contact each other, the operator lifts the locking block 507 located in the outer groove 508 at the left end of fixed plate 2 502, causing the locking block 507 to rotate and engage in the locking groove 506 at the right end of fixed plate 1 501, thereby connecting and fixing fixed plate 1 501 and fixed plate 2 502. At this time, the rear end of module 2 contacts the rear end of the inner wall of bottom mold 1, and the front end of module 2 contacts the rear end surfaces of fixed plate 1 501 and fixed plate 2 502. The bottom end of module 2 is engaged with slide groove 8 by slider 2 7, thereby making module 2 securely fixed. This solves the problem that module 2 will shift due to huge force when the extrusion plate 4 comes into contact with module 2. Next, the stamping plate is placed and positioned. The operator places the stamping plate between the two slide rails 601 fixed at the top of the bottom mold 1. Since the front end of the inner wall of the two slide rails 601 is treated with right angle, the stamping plate can be easily inserted into the inner wall of the slide rail 601, avoiding the stamping plate from colliding with the front end of the inner wall of the slide rail 601 when it is inserted, which will cause damage to the corners.

[0039] When the rear end of the stamping plate contacts the rear end of the inner wall of the two slide rails 601, the operator holds the top of the T-block 604 and slides the bottom end of the outer wall of the T-block 604 into the inner wall of the slot 2 603 opened at the front end of the slide rail 601. Since the slot 2 603 passes through the bottom end of the slide rail 601 from the top end, the T-block 604 passes through the inner wall of the slide rail 601 to fix the front end position of the stamping plate. The positioning mechanism 6 solves the problem of uneven edges and corners of the finished product caused by tilting or moving the stamping plate during placement. Finally, the stamping is performed, and the upper die 3 moves the inner wall. The fixedly connected extrusion plate 4 is pressed down. Since the bottom end of the upper mold 3 has an outer groove 602, when the upper mold 3 is pressed down, the outer wall of the slide rail 601 contacts the inner wall of the upper mold 3. The outer groove 602 accommodates the slide rail 601, avoiding collision damage between the upper mold 3 and the positioning mechanism 6. When the bottom end of the extrusion plate 4 contacts the top end of the stamping plate, the stamping plate is driven by the upper mold 3 to be shaped on the outer wall of the module 2, so that the stamping plate forms the required finished product. After stamping is completed, the upper mold 3 drives the extrusion plate 4 on the inner wall to rise, and then the worker takes the finished product out from the top end of the module 2.

Claims

1. A stamping die for an automotive body panel, comprising: Bottom mold (1), module (2) slidably installed on the inner wall of the bottom mold (1), and upper mold (3) disposed above the bottom mold (1); The module (2) is characterized by having a slider two (7) fixed at the bottom, a groove three (8) opened at the bottom of the inner wall of the bottom mold (1), the slider two (7) sliding in the groove three (8), an extrusion plate (4) fixed on the inner wall of the upper mold (3), and a fixing mechanism (5) further comprising a fixing plate one (501) and a fixing plate two (502) disposed at the front end of the bottom mold (1). The fixing plate one (501) and the fixing plate two (502) can slide towards each other and engage with each other to abut and fix the module (2). The automotive body panel stamping mold further comprises a positioning mechanism (6), which comprises a slide rail (601) and a T-block (604) fixed on the left and right sides of the top of the bottom mold (1). The slide rail (601) and the T-block (604) are used to position the stamping plate.

2. The stamping die for an automotive body panel according to claim 1, characterized in that, The bottom mold (1) has a sliding groove 1 (503) and a sliding groove 2 (505) at its front end. The bottom ends of the fixing plate 1 (501) and the fixing plate 2 (502) are each fixed with a slider 1 (504). The slider 1 (504) slides on the inner wall of the sliding groove 2 (505). The fixing plate 1 (501) and the fixing plate 2 (502) slide on the inner wall of the sliding groove 1 (503) at the left and right ends of the bottom mold (1), respectively.

3. The stamping die for an automotive body panel according to claim 2, characterized in that, The bottom of the inner wall of the first slide (503) is connected to the top of the inner wall of the second slide (505).

4. The stamping die for an automotive body panel according to claim 1, characterized in that, The first fixing plate (501) has a slot (506) on its right end and an outer groove (508) on its left end. The second fixing plate (502) also includes a locking block (507). The right end of the locking block (507) rotates in the inner wall of the outer groove (508). The locking block (507) is used to engage in the slot (506) when the first fixing plate (501) and the second fixing plate (502) come into contact.

5. The stamping die for an automotive body panel according to claim 1, characterized in that, The slide rail (601) has a second slot (603) at its front end, and the bottom of the outer wall of the T-block (604) slides into the inner wall of the second slot (603).

6. The stamping die for an automotive body panel according to claim 5, characterized in that, The second slot (603) extends from the top of the slide rail (601) to the bottom of the slide rail (601).

7. The stamping die for an automotive body panel according to claim 1, characterized in that, The front end of the inner wall of the slide rail (601) is treated with a right angle.

8. The stamping die for an automotive body panel according to claim 1, characterized in that, The bottom end of the upper mold (3) is provided with an outer groove (602), the size and position of which correspond to the slide rail (601) and are used to accommodate the slide rail (601) when the upper mold (3) is pressed down.

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