Punch forming die for automobile parts
By designing a stamping die for automotive parts with a bidirectional bending and unloading mechanism, the problem of difficult demolding of molded parts was solved, achieving efficient continuous production and high-quality molding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI NEOUSYS AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-19
AI Technical Summary
During the forming process, existing automotive parts stamping dies are prone to developing inward bending profiles on both sides, making it difficult to demold the formed parts.
An automotive parts stamping die was designed, comprising an upper die, a lower die, a bidirectional bending forming mechanism, and a material ejection mechanism. High-speed continuous production is achieved through the cooperation of drive components and moving components, and the sheet metal is kept horizontal by the spring mechanism to avoid positional deviation.
It improves stamping efficiency, simplifies the demolding process, ensures forming quality, reduces manual intervention, and guarantees smooth demolding of the bent parts on the side of the sheet metal.
Smart Images
Figure CN224254079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a stamping die for automotive parts. Background Technology
[0002] The fender is the outer body panel that covers the wheels. It is named after the shape and position of this part on old cars, which resembles a bird's wing.
[0003] Chinese patent CN220426468U discloses a stamping die for an automobile fender, including a worktable, a support frame mounted on the worktable, a first hydraulic rod mounted on the support frame, a first rack mounted on the first hydraulic rod, an upper die mounted on one end of the first hydraulic rod, a lower die mounted on the worktable, a fixed seat mounted on the worktable, a conveying mechanism housed within the fixed seat, a one-way wheel mounted on the conveying mechanism, the first rack engaging with the one-way wheel, multiple fixing mechanisms mounted on the conveying mechanism, and two second racks mounted inside the fixed seat, engaging with the fixing mechanisms. However, this device still has the following problems during use:
[0004] The lower mold is fixed, but when the fender is being formed, the mold will have an inwardly bent profile on both sides, which can easily cause the molded part to stick to the mold surface and be difficult to demold.
[0005] Based on this, this utility model designs a stamping die for automotive parts to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stamping die for automotive parts.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A stamping die for automotive parts includes an upper die and a lower die, as well as a bidirectional bending forming mechanism and a material ejection mechanism; the upper die is slidably connected to the lower die via a guide rod.
[0009] The upper end of the upper template is fixedly connected to the movable end of the stamping machine;
[0010] A bidirectional bending forming mechanism for stamping and forming sheet metal is installed in the middle of the upper and lower templates;
[0011] The bidirectional bending forming mechanism includes two sets of movable components for performing forming operations and a drive component for controlling the movement of the movable components; the drive component is installed at the lower end of the upper template; the movable components are symmetrically installed on the left and right sides of the upper end of the lower template.
[0012] The upper end of the lower template is also equipped with a material ejection mechanism that controls the reset of moving components to facilitate demolding operations; the material ejection mechanism is arranged in a rectangular array at the upper end of the lower template.
[0013] Furthermore, the upper end of the lower template is also equipped with a spring mechanism for moving the formed sheet material to facilitate material handling;
[0014] Furthermore, the driving assembly includes a movable mold and an extrusion driving plate; the movable mold is fixedly installed at the lower middle part of the upper template; the extrusion driving plate is symmetrically fixedly installed at the front and rear ends of the movable mold;
[0015] Furthermore, the lower end of the active mold is provided with a forming groove for forming the fender; the lower end of the extrusion drive plate is provided with symmetrical inclined surfaces on the left and right sides.
[0016] Furthermore, the movable component includes a first bending and forming sliding plate, a second bending and forming sliding plate, and a movable push plate; the first bending and forming sliding plate and the second bending and forming sliding plate are slidably connected to the upper end of the lower template; and both the front and rear ends of the first bending and forming sliding plate and the second bending and forming sliding plate are fixedly connected to the movable push plate through connecting plates; the left front and rear two sets of ejection mechanisms are connected to the first bending and forming sliding plate; the right front and rear two sets of ejection mechanisms are connected to the second bending and forming sliding plate.
[0017] Furthermore, the upper end of the movable push plate is provided with a one-way inclined surface that cooperates with the inclined surface at the lower end of the extrusion drive plate;
[0018] Furthermore, the material ejection mechanism includes a first nitrogen spring and a fixing block; the first bending and forming sliding plate and the second bending and forming sliding plate are provided with mounting grooves on both the front and rear sides of the ends that are far apart; the first nitrogen spring is fixedly installed on the inner wall of the mounting groove; the fixing block is fixedly installed on the upper end of the lower template; the telescopic end of the first nitrogen spring is fixedly connected to the fixing block.
[0019] Furthermore, the spring material mechanism includes a movable positioning annular plate and a second nitrogen spring; multiple second nitrogen springs are fixedly installed on the upper end of the lower template; the telescopic ends of the second nitrogen springs are fixedly connected to the lower end of the movable positioning annular plate.
[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. Through the cooperation of the drive component and two sets of moving components, the device can realize high-speed continuous production operation, improve stamping efficiency, and facilitate demolding of the side bending part of the sheet metal, avoiding the extra workload of manual intervention.
[0021] 2. The spring mechanism ensures that the forming sheet remains horizontal, preventing the sheet from being placed directly on the forming mold and causing the sheet to shift position, thus further guaranteeing the forming quality. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This utility model relates to a three-dimensional stamping die for automotive parts. Figure 1 ;
[0024] Figure 2 This is a front view of a stamping die for automotive parts according to the present invention.
[0025] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0026] Figure 4 This is a perspective view of a stamping die for automotive parts according to the present invention, with a portion of the front cut away.
[0027] The labels in the diagram represent:
[0028] 1. Upper template; 2. Lower template; 3. Bidirectional bending forming mechanism; 31. Movable mold; 311. Forming groove; 32. Extrusion drive plate; 33. First bending forming sliding plate; 34. Second bending forming sliding plate; 35. Movable push plate; 4. Material ejection mechanism; 41. First nitrogen spring; 42. Mounting groove; 43. Fixing block; 5. Material ejection mechanism; 51. Movable positioning ring plate; 52. Second nitrogen spring. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some, not all, of the embodiments of this utility model. 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.
[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0031] In some embodiments, please refer to the accompanying drawings. Figures 1-4A stamping die for automotive parts includes an upper die plate 1 and a lower die plate 2, and also includes a bidirectional bending forming mechanism 3, a material ejection mechanism 4 and a material spring mechanism 5; the upper die plate 1 is slidably connected to the lower die plate 2 by a guide rod.
[0032] The upper end of the upper template 1 is fixedly connected to the movable end of the stamping machine;
[0033] A bidirectional bending forming mechanism 3 for stamping and forming sheet metal is installed in the middle of the upper template 1 and the lower template 2;
[0034] like Figure 1 As shown, the bidirectional bending forming mechanism 3 includes two sets of movable components for performing forming operations and a drive component for controlling the movement of the movable components; the drive component is installed at the lower end of the upper template 1; the movable components are symmetrically installed on the left and right sides of the upper end of the lower template 2.
[0035] The upper end of the lower template 2 is also equipped with a material ejection mechanism 4 that controls the reset of multiple moving components to facilitate demolding operations; the material ejection mechanism 4 is arranged in a rectangular array at the upper end of the lower template 2.
[0036] The upper end of the lower template 2 is also equipped with a spring material mechanism 5 for moving the forming plate material to facilitate material picking after forming;
[0037] In this invention, the robotic arm places the sheet metal to be formed on the upper end of the spring material mechanism 5; then the press operates to drive the upper template 1 to move downward, causing the drive assembly to move downward along with the upper template 1. During the movement, the drive assembly will touch two sets of movable components and drive the two sets of movable components to move in opposite directions simultaneously; at the same time, the lower end of the drive assembly will also touch the spring material mechanism 5 and drive the spring material mechanism 5, on which the sheet metal is placed, to move downward together until the lower end of the sheet metal on the spring material mechanism 5 contacts the upper ends of the two sets of movable components, and the sheet metal is formed under the action of the drive assembly.
[0038] After stamping is completed, the stamping machine drives the upper template 1 to reset upwards, causing the drive assembly to separate from the movable assembly and the springing mechanism 5. Then, the ejection mechanism 4 drives the left and right movable assemblies to move inwards and reset simultaneously, causing the outer ends of the movable assemblies to separate from the side bending parts of the formed sheet. Subsequently, the springing mechanism 5 automatically resets, driving the formed sheet to move upwards, and the lower end of the formed sheet also separates from the movable assembly. Then, the robotic arm removes the formed sheet.
[0039] The device can achieve high-speed continuous production by cooperating with the drive component and two sets of moving components, which improves stamping efficiency and facilitates demolding of the bent parts on the side of the sheet metal, avoiding the extra workload of manual intervention. The spring mechanism 5 keeps the formed sheet metal horizontal at all times, avoiding the problem of placing the sheet metal directly on the forming mold, which would cause the sheet metal position to shift, and further ensures the forming quality.
[0040] like Figures 1-4 As shown, the driving assembly includes a movable mold 31 and an extrusion driving plate 32; the movable mold 31 is fixedly installed at the lower middle part of the upper template 1; the extrusion driving plate 32 is symmetrically fixedly installed at the front and rear ends of the movable mold 31; the lower end of the movable mold 31 is provided with a forming groove 311 for forming a fender; the lower end of the extrusion driving plate 32 is symmetrically provided with inclined surfaces on the left and right sides.
[0041] like Figure 1 As shown, the movable component includes a first bending and forming sliding plate 33, a second bending and forming sliding plate 34, and a movable push plate 35; the first bending and forming sliding plate 33 and the second bending and forming sliding plate 34 are slidably connected to the upper end of the lower template 2; and both the front and rear ends of the first bending and forming sliding plate 33 and the second bending and forming sliding plate 34 are fixedly connected to the movable push plate 35 through connecting plates; the upper end of the movable push plate 35 is provided with a one-way inclined surface that cooperates with the inclined surface of the lower end of the extrusion drive plate 32; the left front and rear two sets of ejection mechanisms 4 are connected to the first bending and forming sliding plate 33; the right front and rear two sets of ejection mechanisms 4 are connected to the second bending and forming sliding plate 34.
[0042] like Figure 2 and Figure 3 As shown, the unloading mechanism 4 includes a first nitrogen spring 41 and a fixing block 43; the first bending and forming sliding plate 33 and the second bending and forming sliding plate 34 are provided with mounting grooves 42 on both the front and rear sides of the opposite ends; the first nitrogen spring 41 is fixedly installed on the inner wall of the mounting groove 42; the fixing block 43 is fixedly installed on the upper end of the lower template 2; the telescopic end of the first nitrogen spring 41 is fixedly connected to the fixing block 43.
[0043] like Figure 1 As shown, the spring material mechanism 5 includes a movable positioning annular plate 51 and a second nitrogen spring 52; multiple second nitrogen springs 52 are fixedly installed on the upper end of the lower template 2; the telescopic ends of the second nitrogen springs 52 are fixedly connected to the lower end of the movable positioning annular plate 51.
[0044] In this invention, the robotic arm places the sheet metal to be formed into a fender on the upper end of the movable positioning ring plate 51. Then, the press operates, causing the upper template 1 to move downwards, so that the movable mold 31 and the extrusion drive plate 32 move downwards along with the upper template 1. During this movement, the inclined surface at the lower end of the extrusion drive plate 32 contacts the unidirectional inclined surfaces at the upper ends of the two movable push plates 35, pushing them to move outwards in opposite directions simultaneously. The left movable push plate 35 drives the first bending forming sliding plate 33 to move to the left, and the right movable push plate 35 drives the second bending forming sliding plate 34 to move to the right. The outward movement of the first bending forming sliding plate 33 and the second bending forming sliding plate 34 also continuously compresses the first nitrogen spring 41. The downward movement of the movable positioning ring plate 51 continuously compresses the second nitrogen spring 52.
[0045] At the same time, the lower end of the movable mold 31 will touch the sheet material placed on the upper end of the movable positioning ring plate 51, and drive the movable positioning ring plate 51 with the sheet material to move downward together until the lower end of the movable positioning ring plate 51 passes through the first bending forming sliding plate 33 and the second bending forming sliding plate 34, so that the lower end of the sheet material placed on the upper end of the movable positioning ring plate 51 contacts the upper end of the first bending forming sliding plate 33 and the second bending forming sliding plate 34. And since the movable mold 31 is still moving downward at this time, the inner wall of the forming groove 311 will contact the upper end of the sheet material. At this time, the forming groove 311 will cause the left and right sides of the sheet material to bend downward and abut against the upper ends of the first bending forming sliding plate 33 and the second bending forming sliding plate 34; thus realizing the forming operation of the sheet material.
[0046] After stamping is completed, the stamping machine drives the upper template 1 to reset upwards, causing the forming groove 311 to separate from the upper end of the sheet metal. When the extrusion drive plate 32 separates from the two movable push plates 35 on the left and right, the first nitrogen spring 41 returns to its original position, causing the first bending forming sliding plate 33 and the second bending forming sliding plate 34 to move inwards and reset simultaneously. This causes the first bending forming sliding plate 33 to separate from the inner end of the left bending part of the sheet metal, and the second bending forming sliding plate 34 to separate from the inner end of the right bending part of the sheet metal. Subsequently, the second nitrogen spring 52 returns to its original position, causing the movable positioning ring plate 51 to reset upwards. At this time, the movable positioning ring plate 51 will move the formed sheet metal upwards together. During the movement, the lower end of the formed sheet metal will also separate from the upper end of the first bending forming sliding plate 33 and the second bending forming sliding plate 34. Then, the robotic arm can remove the formed sheet metal.
[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A stamping die for automotive parts, comprising an upper die (1) and a lower die (2), characterized in that: It also includes a bidirectional bending forming mechanism (3) and a material ejection mechanism (4); the upper template (1) is connected to the lower template (2) by a guide rod for limiting sliding; The upper end of the upper template (1) is fixedly connected to the movable end of the stamping machine; A bidirectional bending forming mechanism (3) for stamping and forming sheet metal is installed in the middle of the upper template (1) and the lower template (2); The bidirectional bending forming mechanism (3) includes two sets of movable components for performing forming operations and a drive component for controlling the movement of the movable components; the drive component is installed at the lower end of the upper template (1); the movable components are symmetrically installed on the left and right sides of the upper end of the lower template (2); The upper end of the lower template (2) is also equipped with a material ejection mechanism (4) that controls the reset of the active components to facilitate demolding operations; the material ejection mechanism (4) is arranged in a rectangular array at the upper end of the lower template (2).
2. The stamping die for automotive parts according to claim 1, characterized in that, The upper end of the lower template (2) is also equipped with a spring material mechanism (5) for moving the formed sheet material to facilitate material picking.
3. The stamping die for automotive parts according to claim 1, characterized in that, The driving assembly includes a movable mold (31) and an extrusion driving plate (32); the movable mold (31) is fixedly installed at the lower middle part of the upper template (1); the extrusion driving plate (32) is symmetrically fixedly installed at the front and rear ends of the movable mold (31).
4. The stamping die for automotive parts according to claim 3, characterized in that, The lower end of the movable mold (31) is provided with a forming groove (311) for forming the fender; the lower end of the extrusion drive plate (32) is provided with symmetrical inclined surfaces on the left and right sides.
5. The stamping die for automotive parts according to claim 4, characterized in that, The movable components include a first bending and forming sliding plate (33), a second bending and forming sliding plate (34), and a movable push plate (35); the first bending and forming sliding plate (33) and the second bending and forming sliding plate (34) are slidably connected to the upper end of the lower template (2); and the front and rear ends of the first bending and forming sliding plate (33) and the second bending and forming sliding plate (34) are fixedly connected to the movable push plate (35) through connecting plates; the left front and rear two sets of ejection mechanisms (4) are connected to the first bending and forming sliding plate (33); the right front and rear two sets of ejection mechanisms (4) are connected to the second bending and forming sliding plate (34).
6. The stamping die for automotive parts according to claim 5, characterized in that, The upper end of the movable push plate (35) is provided with a one-way inclined surface that cooperates with the inclined surface at the lower end of the extrusion drive plate (32).
7. The stamping die for automotive parts according to claim 5, characterized in that, The unloading mechanism (4) includes a first nitrogen spring (41) and a fixing block (43); the first bending and forming sliding plate (33) and the second bending and forming sliding plate (34) are provided with mounting grooves (42) on both the front and rear sides of the opposite end; the first nitrogen spring (41) is fixedly installed on the inner wall of the mounting groove (42); the fixing block (43) is fixedly installed on the upper end of the lower template (2); the telescopic end of the first nitrogen spring (41) is fixedly connected to the fixing block (43).
8. The stamping die for automotive parts according to claim 2, characterized in that, The spring material mechanism (5) includes a movable positioning ring plate (51) and a second nitrogen spring (52); multiple second nitrogen springs (52) are fixedly installed on the upper end of the lower template (2); the telescopic end of the second nitrogen spring (52) is fixedly connected to the lower end of the movable positioning ring plate (51).