A segmented stamping die with positioning function

Abstract

This utility model discloses a segmented stamping die with positioning function, belonging to the field of automotive parts processing technology. It includes an upper die and a lower die. Multiple connecting guide rods are fixedly installed on the upper end of the lower die, and the upper die is slidably connected to the connecting guide rods. The upper end of the upper die is fixedly connected to the movable end of the stamping press. A bidirectional negative angle segmented forming mechanism is installed on the lower end of the upper die. The bidirectional negative angle segmented forming mechanism includes a main forming component and a negative angle forming component. The main forming component is installed on the lower end of the upper die; the negative angle forming components are symmetrically installed on the left and right sides of the main forming component. A bidirectional movable forming mechanism is installed on the upper end of the lower die. Through the above method, the device can perform multiple bends on the sheet metal, achieving precise stamping of the negative angle forming area, improving stamping quality; it facilitates rapid demolding of the sheet metal at the stamped negative angle area, avoiding die jamming or sheet metal damage, further enhancing the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a segmented stamping die with positioning function. Background Technology

[0002] As a key component, the outer panel of the car engine hood plays an important role in the engine system. In the processing and manufacturing process of the outer panel of the car engine hood, stamping dies are commonly used equipment. By applying pressure to the material through the die installed on the stamping press, the material is plastically deformed, thereby realizing the forming operation of the hood.

[0003] Chinese patent CN217451665U discloses a stamping forming device for an automobile engine end cover, including a base and a punch groove. The top of the base has a punch groove, and the inside of the punch groove has a top plate. The bottom of the base has a support leg, and one side of the support leg has a mounting plate. The top of the mounting plate has a first sliding groove, and the inside of the first sliding groove has a first slider. The inside of the first sliding groove has a threaded rod with both positive and negative threads, and the top of the first slider has a support rod. One end of the support rod has a top rod, and one end of the threaded rod has a motor. However, this device still has the following problems in use:

[0004] The machine cover usually has inwardly bent negative angle areas on both sides. The upper mold of the device is fixed. The negative angle is formed by forming grooves opened in the upper mold. The accuracy is poor and demolding is difficult.

[0005] Based on this, this utility model designs a segmented stamping die with positioning function 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 segmented stamping die with positioning function.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A segmented stamping die with positioning function includes an upper die plate and a lower die plate, as well as a bidirectional negative angle segmented forming mechanism and a bidirectional movable forming mechanism; multiple connecting guide rods are fixedly installed on the upper end of the lower die plate, and the upper die plate is limited and slidably connected to the connecting guide rods; the upper end of the upper die plate is fixedly connected to the movable end of the stamping machine.

[0009] The lower end of the upper template is equipped with a bidirectional negative angle segmented forming mechanism for stamping and forming the sheet metal;

[0010] The bidirectional negative angle segmented forming mechanism includes a main forming component and a negative angle forming component; the main forming component is installed at the lower end of the upper template; the negative angle forming components are symmetrically installed on the left and right sides of the main forming component;

[0011] The upper end of the lower template is equipped with a two-way movable forming mechanism for convenient positioning and demolding operations;

[0012] Furthermore, the bidirectional movable molding mechanism includes a fixed molding component and a movable molding component; the fixed molding component is installed at the upper middle part of the lower template; the movable molding components are symmetrically installed on the left and right sides of the fixed molding component.

[0013] Furthermore, when not stamping, the movable forming components on both the left and right sides are higher than the fixed forming components;

[0014] Furthermore, the main forming assembly includes a U-shaped push plate, a forming main plate, guide rods, and a reset spring; the U-shaped push plate is fixedly installed at the lower middle of the upper template; multiple guide rods are slidably connected to the lower end of the U-shaped push plate, and the guide rods are distributed in a rectangular array at the lower end of the U-shaped push plate; a limiting block for restricting the downward sliding of the guide rod is fixedly installed at the upper end of the guide rod; the lower ends of the multiple guide rods are fixedly connected to the upper end of the forming main plate; the reset spring is wrapped around the outside of the guide rod, and one end of the reset spring is fixedly connected to the U-shaped push plate; the other end of the reset spring is fixedly connected to the forming main plate; the U-shaped push plate and the forming main plate are connected to the negative angle forming assembly;

[0015] Furthermore, the negative angle forming assembly includes a negative angle forming plate and a reset torsion spring; the negative angle forming plate is rotatably mounted on one side of the forming main plate; the lower end of the U-shaped push plate is symmetrically provided with driving inclined surfaces for controlling the rotation of the negative angle forming plate on both the left and right sides; the lower end of the negative angle forming plate is provided with a limiting inclined surface for controlling the movement of the sheet material to perform a first bending; the inner side of the negative angle forming plate is provided with a contact groove for performing a second bending of the sheet material.

[0016] The lower left and right sides of the U-shaped push plate abut against the upper end of the negative angle forming plate;

[0017] A reset torsion spring is wound around the rotating shaft of the negative angle forming plate and the forming main plate; one end of the reset torsion spring is fixedly connected to the negative angle forming plate; the other end of the reset torsion spring is fixedly connected to the forming main plate.

[0018] Furthermore, by using a reset torsion spring, the negative angle forming plate is always kept in a tendency to flip outwards;

[0019] Furthermore, the fixed forming assembly includes a bidirectional wedge angle fixing plate; the bidirectional wedge angle fixing plate is fixedly installed on the upper end of the lower template; the bidirectional wedge angle fixing plate is connected to the movable forming assembly;

[0020] Furthermore, the movable forming assembly includes a one-way wedge angle movable plate and nitrogen springs; the left and right sides of the two-way wedge angle fixed plate are limited and slidably connected to the one-way wedge angle movable plate; a sliding connecting block is slidably connected to the lower end of the one-way wedge angle movable plate; multiple nitrogen springs are fixedly installed at the lower end of the lower template, and the telescopic ends of the nitrogen springs are fixedly connected to the sliding connecting blocks.

[0021] When no stamping operation is performed, the upper height of the unidirectional wedge movable plate is higher than the upper height of the bidirectional wedge fixed plate;

[0022] The two unidirectional wedge-shaped movable plates have a negative angle forming groove at their far ends, which is used to cooperate with the contact groove.

[0023] Compared with the prior art, the advantages of this utility model are as follows: 1. By cooperating with the main forming component and the negative angle forming component, the device can bend the sheet multiple times, realize the precise stamping forming of the negative angle forming part, and improve the stamping quality.

[0024] 2. The combination of fixed forming components and movable forming components facilitates quick demolding of sheet metal at the negative angle of the stamping, avoiding mold jamming or sheet metal damage, and further improving the practicality of the device. Attached Figure Description

[0025] 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.

[0026] Figure 1 This utility model relates to a three-dimensional segmented stamping die with positioning function. Figure 1 ;

[0027] Figure 2 This is a front view of a segmented stamping die with positioning function according to the present invention;

[0028] Figure 3 This utility model relates to a three-dimensional segmented stamping die with positioning function. Figure 2 ;

[0029] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0030] The labels in the diagram represent:

[0031] 1. Upper template; 2. Lower template; 3. Bidirectional negative angle segmented forming mechanism; 31. U-shaped push plate; 32. Forming main plate;

[0032] 33. Guide rod; 34. Reset spring; 35. Negative angle forming plate; 36. Driving inclined plane; 37. Reset torsion spring; 38. Limiting inclined plane; 39. Contact groove; 4. Bidirectional movable forming mechanism; 41. Bidirectional wedge angle fixing plate; 42. Unidirectional wedge angle movable plate; 421. Negative angle forming groove; 43. Nitrogen spring; 44. Sliding connecting block. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] In some embodiments, please refer to the accompanying drawings. Figures 1-4 A segmented stamping die with positioning function includes an upper template 1 and a lower template 2, and also includes a bidirectional negative angle segmented forming mechanism 3 and a bidirectional movable forming mechanism 4; multiple connecting guide rods are fixedly installed on the upper end of the lower template 2, and the upper template 1 is limited and slidably connected to the connecting guide rods;

[0036] The upper end of the upper template 1 is fixedly connected to the movable end of the stamping machine;

[0037] The lower end of the upper template 1 is equipped with a bidirectional negative angle segmented forming mechanism 3 for stamping and forming the sheet metal;

[0038] like Figure 1 As shown, the bidirectional negative angle segmented forming mechanism 3 includes a main forming component and a negative angle forming component; the main forming component is installed at the lower end of the upper template 1; the negative angle forming components are symmetrically installed on the left and right sides of the main forming component;

[0039] The upper end of the lower template 2 is equipped with a two-way movable forming mechanism 4 for convenient positioning and demolding operations;

[0040] like Figure 1 As shown, the bidirectional movable forming mechanism 4 includes a fixed forming component and a movable forming component; the fixed forming component is installed at the upper middle part of the lower template 2; the movable forming components are symmetrically installed on the left and right sides of the fixed forming component;

[0041] When not being stamped, the movable forming components on the left and right sides are higher than the fixed forming components;

[0042] In this utility model, the sheet material for forming the car hood is placed on the upper end of the movable forming component; then the press works to drive the main forming component and the negative angle forming component to move downward together. During the movement, the negative angle forming component will first contact the left and right sides of the sheet material and press the left and right sides of the sheet material downward to perform the first bending action.

[0043] The main forming component then touches the top of the sheet metal and moves it downwards. At this point, the sheet metal presses the movable forming components on both sides to slide downwards along the fixed forming component until the movable forming component and the fixed forming component are at the same horizontal level; thus achieving the stamping forming of the middle part of the sheet metal.

[0044] Furthermore, during the movement of the main forming component, the main forming component will also drive the negative angle forming components on the left and right sides to rotate inward simultaneously. At this time, the negative angle forming components will drive the left and right sides of the sheet to bend inward again, and with the cooperation of the movable forming component, the negative angle forming operation of the sheet will be achieved.

[0045] After stamping is completed, the stamping machine drives the main forming component and the negative angle forming component to move upward together, so that the main forming component and the negative angle forming component are separated from the formed sheet material;

[0046] Subsequently, the movable forming component drives the formed sheet material to automatically return to its original position. During the movement, the left and right sides of the movable forming component will separate from the negative corners of the sheet material, and then the formed sheet material can be removed.

[0047] The combination of the main forming component and the negative angle forming component enables the device to bend the sheet metal multiple times, achieving precise stamping of the negative angle forming area and improving the stamping quality. The combination of the fixed forming component and the movable forming component facilitates quick demolding of the sheet metal in the stamped negative angle area, avoiding mold jamming or sheet metal damage, further enhancing the practicality of the device.

[0048] like Figure 2As shown, the main forming assembly includes a U-shaped push plate 31, a forming main plate 32, guide rods 33, and a reset spring 34. The U-shaped push plate 31 is fixedly installed at the lower middle of the upper template 1. Multiple guide rods 33 are slidably connected to the lower end of the U-shaped push plate 31, and the guide rods 33 are arranged in a rectangular array at the lower end of the U-shaped push plate 31. A limiting block for restricting the downward sliding of the guide rods 33 is fixedly installed at the upper end of the guide rods 33. The lower ends of the multiple guide rods 33 are fixedly connected to the upper end of the forming main plate 32. The reset spring 34 is wrapped around the outside of the guide rods 33, and one end of the reset spring 34 is fixedly connected to the U-shaped push plate 31. The other end of the reset spring 34 is fixedly connected to the forming main plate 32. The U-shaped push plate 31 and the forming main plate 32 are connected to the negative angle forming assembly.

[0049] like Figure 4 As shown, the negative angle forming assembly includes a negative angle forming plate 35 and a reset torsion spring 37; the negative angle forming plate 35 is rotatably mounted on one side of the forming main plate 32; the lower end of the U-shaped push plate 31 is symmetrically provided with driving inclined surfaces 36 for controlling the rotation of the negative angle forming plate 35 on the left and right sides; the lower end of the negative angle forming plate 35 is provided with a limiting inclined surface 38 for controlling the movement of the sheet material to perform a first bending; the inner side of the negative angle forming plate 35 is provided with a contact groove 39 for performing a second bending of the sheet material.

[0050] The lower left and right sides of the U-shaped push plate 31 abut against the upper end of the negative angle forming plate 35.

[0051] A reset torsion spring 37 is wound around the rotation shaft of the negative angle forming plate 35 and the forming main plate 32; one end of the reset torsion spring 37 is fixedly connected to the negative angle forming plate 35; the other end of the reset torsion spring 37 is fixedly connected to the forming main plate 32; through the reset torsion spring 37, the negative angle forming plate 35 always maintains the tendency to flip outward.

[0052] like Figure 3 As shown, the fixed forming assembly includes a bidirectional wedge angle fixing plate 41; the bidirectional wedge angle fixing plate 41 is fixedly installed on the upper end of the lower template 2; the bidirectional wedge angle fixing plate 41 is connected to the movable forming assembly;

[0053] like Figure 3 As shown, the movable forming assembly includes a one-way wedge angle movable plate 42 and a nitrogen spring 43; the left and right sides of the two-way wedge angle fixed plate 41 are limited and slidably connected to the one-way wedge angle movable plate 42; a sliding connecting block 44 is slidably connected to the lower end of the one-way wedge angle movable plate 42; multiple nitrogen springs 43 are fixedly installed at the lower end of the lower template 2, and the telescopic ends of the nitrogen springs 43 are fixedly connected to the sliding connecting block 44.

[0054] When no stamping operation is performed, the upper height of the unidirectional wedge angle movable plate 42 is higher than the upper height of the bidirectional wedge angle fixed plate 41;

[0055] The two unidirectional wedge-shaped movable plates 42 are provided with a negative angle forming groove 421 at their far ends, which is used to cooperate with the contact groove 39;

[0056] In this invention, the sheet material to be formed into a car hood is placed on the upper end of the left and right one-way wedge angle movable plates 42. Then, the press operates to drive the upper template 1 to move downward. At this time, the upper template 1 drives the U-shaped push plate 31 to move downward. The forming main plate 32 moves upward together with the U-shaped push plate 31. During the movement, the negative angle forming plates 35 connected to the left and right sides of the forming main plate 32 will first contact the left and right sides of the sheet material. At this time, the upper ends of the left and right negative angle forming plates 35 are limited by the lower ends of the U-shaped push plate 31. Then, the negative angle forming plates 35 will press the left and right sides of the sheet material to move downward to complete the first bending action.

[0057] Until the lower end of the forming main plate 32 contacts the middle of the upper end of the sheet material and presses the sheet material downward; at this time, the sheet material will drive the two one-way wedge angle movable plates 42 on the left and right to move downward along the two-way wedge angle fixed plate 41. During the movement, the one-way wedge angle movable plate 42 drives the sliding connecting block 44 to move downward together, and the sliding connecting block 44 will compress the nitrogen spring 43 downward; and the lower end of the one-way wedge angle movable plate 42 will also slide along the sliding connecting block 44, so that the one-way wedge angle movable plate 42 always applies pressure to the nitrogen spring 43; until the upper end of the one-way wedge angle movable plate 42 is flush with the upper end of the two-way wedge angle fixed plate 41;

[0058] Furthermore, when the lower end of the forming main plate 32 contacts the sheet material, the upper template 1 continues to drive the U-shaped push plate 31 to move downwards, causing the U-shaped push plate 31 to move downwards along the guide rod 33. During the movement, the U-shaped push plate 31 will continuously compress the reset spring 34. During the downward movement of the U-shaped push plate 31, the driving inclined surfaces 36 on the left and right sides of the lower end of the U-shaped push plate 31 will also press the upper end of the negative angle forming plate 35, causing the negative angle forming plate 35 to rotate downwards around the hinge point with the forming main plate 32. During the rotation, the contact groove 39 on the inner side of the negative angle forming plate 35 will cause the sheet material to bend inwards again after the first bend until the inner side of the sheet material is in contact with the negative angle forming groove 421; thus, the negative angle forming operation of the sheet material can be realized.

[0059] After forming, the press drives the upper template 1 and the U-shaped push plate 31 to reset upwards. Then, the reset torsion spring 37 returns to its original position, causing the negative angle forming plates 35 on both sides of the forming main plate 32 to rotate outwards and reset simultaneously. The U-shaped push plate 31 pulls the forming main plate 32 upwards together. When the forming main plate 32 separates from the upper end of the sheet, the nitrogen spring 43 returns to its original position and pushes the sliding connecting block 44 upwards, causing the one-way wedge angle movable plate 42 to reset upwards along the two-way wedge angle fixed plate 41. At this time, the one-way wedge angle movable plate 42 will drive the stamped sheet to move upwards together, and the negative angle forming groove 421 will also separate from the left and right sides of the sheet. Then, the formed sheet can be taken out.

[0060] 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 segmented stamping die with positioning function, comprising an upper die plate (1) and a lower die plate (2), characterized in that: It also includes a bidirectional negative angle segmented forming mechanism (3) and a bidirectional movable forming mechanism (4); multiple connecting guide rods are fixedly installed on the upper end of the lower template (2), and the upper template (1) is limited and slidably connected to the connecting guide rods; the upper end of the upper template (1) is fixedly connected to the movable end of the stamping machine; The lower end of the upper template (1) is equipped with a bidirectional negative angle segmented forming mechanism (3) for stamping and forming the sheet metal. The bidirectional negative angle segmented forming mechanism (3) includes a main forming component and a negative angle forming component; the main forming component is installed at the lower end of the upper template (1); the negative angle forming component is symmetrically installed on the left and right sides of the main forming component; The upper end of the lower template (2) is equipped with a two-way movable molding mechanism (4) for convenient positioning and demolding operations.

2. The segmented press tool with positioning function according to claim 1, characterized in that, The bidirectional movable molding mechanism (4) includes a fixed molding component and a movable molding component; the fixed molding component is installed at the upper middle part of the lower template (2); the movable molding component is symmetrically installed on the left and right sides of the fixed molding component.

3. The segmented stamping die with positioning function according to claim 2, characterized in that, When not being stamped, the movable forming components on the left and right sides are higher than the fixed forming components.

4. The segmented stamping die with positioning function according to claim 2, characterized in that, The main forming component includes a U-shaped push plate (31), a forming main plate (32), guide rods (33), and a reset spring (34). The U-shaped push plate (31) is fixedly installed at the lower middle of the upper template (1). Multiple guide rods (33) are slidably connected to the lower end of the U-shaped push plate (31), and the guide rods (33) are arranged in a rectangular array at the lower end of the U-shaped push plate (31). A limiting block for limiting the downward sliding of the guide rods (33) is fixedly installed at the upper end of the guide rods (33). The lower ends of the multiple guide rods (33) are fixedly connected to the upper end of the forming main plate (32). The reset spring (34) is wrapped around the outside of the guide rods (33), and one end of the reset spring (34) is fixedly connected to the U-shaped push plate (31). The other end of the reset spring (34) is fixedly connected to the forming main plate (32). The U-shaped push plate (31) and the forming main plate (32) are connected to the negative angle forming component.

5. The segmented stamping die with positioning function according to claim 4, characterized in that, The negative angle forming assembly includes a negative angle forming plate (35) and a reset torsion spring (37); the negative angle forming plate (35) is rotatably mounted on one side of the forming main plate (32); the lower end of the U-shaped push plate (31) is symmetrically provided with driving inclined surfaces (36) for controlling the rotation of the negative angle forming plate (35); the lower end of the negative angle forming plate (35) is provided with a limiting inclined surface (38) for controlling the movement of the sheet material to perform a first bend; the inner side of the negative angle forming plate (35) is provided with a contact groove (39) for performing a second bend on the sheet material. The lower left and right sides of the U-shaped push plate (31) abut against the upper end of the negative angle forming plate (35); A reset torsion spring (37) is wound around the rotation shaft of the negative angle forming plate (35) and the forming main plate (32); one end of the reset torsion spring (37) is fixedly connected to the negative angle forming plate (35); the other end of the reset torsion spring (37) is fixedly connected to the forming main plate (32).

6. The segmented stamping die with positioning function according to claim 5, characterized in that, By using the reset torsion spring (37), the negative angle forming plate (35) is always kept in a tendency to flip outward.

7. The segmented stamping die with positioning function according to claim 5, characterized in that, The fixed forming component includes a bidirectional wedge angle fixing plate (41); the bidirectional wedge angle fixing plate (41) is fixedly installed on the upper end of the lower template (2); the bidirectional wedge angle fixing plate (41) is connected to the movable forming component.

8. The segmented stamping die with positioning function according to claim 7, characterized in that, The movable forming component includes a one-way wedge angle movable plate (42) and a nitrogen spring (43); the left and right sides of the two-way wedge angle fixed plate (41) are limited and slidably connected to the one-way wedge angle movable plate (42); a sliding connecting block (44) is slidably connected to the lower end of the one-way wedge angle movable plate (42); multiple nitrogen springs (43) are fixedly installed at the lower end of the lower template (2), and the telescopic ends of the nitrogen springs (43) are fixedly connected to the sliding connecting block (44); When no stamping operation is performed, the upper height of the unidirectional wedge angle movable plate (42) is higher than the upper height of the bidirectional wedge angle fixed plate (41); The two unidirectional wedge-shaped movable plates (42) have a negative angle forming groove (421) at one end that is far apart from each other, which is used to cooperate with the contact groove (39).

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