An underpinning inclined wedge mechanism

Abstract

The utility model discloses a kind of lower installation type inclined wedge mechanisms, it is related to stamping die technical field.It includes upper die and lower die;Upper die is equipped with insert tool driving block, the side of insert tool driving block is equipped with vertical plane, the other side is equipped with driving slope;Lower die is equipped with pedestal, first abutment and fixed block, the top of pedestal is equipped with sliding block, first reset piece is equipped between sliding block and pedestal, the end of sliding block close to insert tool driving block is equipped with driven slope, the end of sliding block away from insert tool driving block is equipped with bending side punch and pressing plate, bending side punch is fixedly connected with sliding block end, pressing plate is sleeved in bending side punch outside, and second reset piece is equipped between pressing plate and sliding block, first abutment and fixed block are located in the side of pressing plate, and fixed block top is equipped with bending forming male that is matched with bending side punch.The utility model can realize normal bending and smoothly stripping for the product with negative angle area and lateral bending structure.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a lower-positioned inclined wedge mechanism. Background Technology

[0002] In the field of automotive parts stamping, for some automotive parts products with negative angle areas and lateral bending structures, the traditional stamping dies cannot achieve lateral bending and smooth stripping of such parts products because: (1) the forming direction of the traditional vertical motion die structure is mostly perpendicular to the sheet metal, and it is impossible to laterally bend the parts products; (2) the negative angle area refers to the depression or protrusion in the local structure of the parts product that is opposite to the mold opening direction (vertical direction) of the traditional die, which causes the angle of the area to be negative in the demolding direction. Therefore, if the traditional vertical motion die structure is used, the negative angle area will jam the die when the die is opened, making it impossible for the parts to be directly taken out of the die. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lower-positioned wedge mechanism that can achieve normal bending and smooth material removal for products with negative angle areas and lateral bending structures.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A lower wedge mechanism includes an upper die and a lower die. A cutting tool drive block is mounted on the upper die. One side of the cutting tool drive block has a vertical plane, and the other side has a driving inclined surface. A base, a first abutment block, and a fixing block are mounted on the lower die. A sliding block that can slide left and right is provided on the top of the base. A first reset component is provided between the sliding block and the base. A driven inclined surface matching the driving inclined surface is provided at one end of the sliding block near the cutting tool drive block. A bending side punch and a pressure plate are provided at one end of the sliding block away from the cutting tool drive block. The bending side punch is fixedly connected to the end of the sliding block. The pressure plate is slidably fitted onto the bending side punch. A second reset component is provided between the pressure plate and the sliding block. The first abutment block and the fixing block are located beside the pressure plate. The first abutment block and the fixing block are used to limit the pressure plate. A bending forming male matching the bending side punch is mounted on the top of the fixing block. The bending forming male and the bending side punch cooperate to bend the product.

[0006] In some embodiments, the top of the base is provided with a guide groove along the sliding direction of the sliding block, and the bottom of the sliding block is provided with a connecting block protruding from the bottom surface. The connecting block is slidably connected to the guide groove. The first reset member is a nitrogen spring. The first reset member is installed in the guide groove, and the piston rod of the first reset member abuts against the connecting block.

[0007] In some embodiments, the second reset member is a nitrogen spring, the second reset member is mounted on the pressure plate, and the piston rod of the second reset member is connected to the sliding block.

[0008] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0009] When the upper and lower dies are closed, the upper die drives the insert drive block downwards. The driving inclined surface of the insert drive block engages with the driven inclined surface of the sliding block, pushing the sliding block to the right and sliding it on the base. This causes the bending side punch and pressure plate to move towards the first support block and the fixed block until the pressure plate contacts the first support block and the fixed block. At this point, the pressure plate first engages with the bending forming male to press the product blank. The sliding block continues to drive the bending side punch towards the product. The bending side punch engages with the bending forming male to perform lateral bending on the corresponding part of the product. When the upper and lower dies are opened, the upper die drives the insert drive block upwards away from the sliding block. Under the elastic force of the first reset component, the sliding block drives the bending side punch and pressure plate to move to the left. Under the elastic force of the second reset component, the pressure plate returns to its initial position. The bending side punch and pressure plate are away from the product, avoiding interference with the product. For products with negative angles, the material can be easily ejected when the die is opened. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0011] Figure 2 for Figure 1 A magnified view of a portion of region A;

[0012] Figure 3 This is an exploded view of an embodiment of this application;

[0013] Figure 4 This is a schematic diagram of the structure of the fixing block and the bending forming member in an embodiment of this application.

[0014] The following are the labels in the diagram: 1. Insertion drive block; 11. Vertical plane; 12. Drive inclined surface; 13. Second return groove; 2. Base; 21. Guide groove; 22. Guide plate; 23. Second wear-resistant plate; 3. First support block; 4. Fixing block; 5. Sliding block; 51. Driven inclined surface; 52. Protruding edge; 6. First reset component; 7. Bending side punch; 8. Pressure plate; 81. First return groove; 811. Limiting step; 9. Second reset component; 10. Bending forming die; 20. First return hook; 30. Second return hook; 40. Second support block; 401. First wear-resistant plate; 50. Product. Detailed Implementation

[0015] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0016] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0017] like Figures 1-4As shown in the embodiment of this application, a lower wedge mechanism includes an upper die and a lower die. A cutting tool drive block 1 is mounted on the upper die. One side of the cutting tool drive block 1 has a vertical plane 11, and the other side has a driving inclined surface 12. A base 2, a first abutment block 3, and a fixing block 4 are mounted on the lower die. A sliding block 5 that can slide left and right is provided on the top of the base 2. A first reset member 6 is provided between the sliding block 5 and the base 2 to reset the sliding block 5. One end of the sliding block 5 near the cutting tool drive block 1 has a driven inclined surface 51 that matches the driving inclined surface 12. The other end of the sliding block 5 away from the cutting tool drive block 1 has a bending side punch 7 and a pressure plate 8. The bending side punch 7 is fixedly connected to the end of the sliding block 5, and the pressure plate 8 is slidably sleeved around the bending side punch 7. Furthermore, a second reset member 9 is provided between the pressure plate 8 and the sliding block 5. The second reset member 9 is used to reset the pressure plate 8. The first abutment block 3 and the fixing block 4 are located on the side of the pressure plate 8. The first abutment block 3 and the fixing block 4 can be used to limit the pressure plate 8. A bending forming male 10 that matches the bending side punch 7 is installed on the top of the fixing block 4. The forming surfaces of the bending side punch 7 and the bending forming male 10 are provided with corresponding arc surfaces, so that when the bending forming male 10 and the bending side punch 7 work together, they can bend the corresponding part of the product 50 to form the corresponding arc. When the mold is closed, the insert drive block 1 moves downward and pushes the sliding block 5 to slide on the base 2, so as to drive the bending side punch 7 and the pressure plate 8 to move towards the first support block 3 and the fixed block 4 until the pressure plate 8 contacts the first support block 3 and the fixed block 4. The first support block 3 and the fixed block 4 can be used to limit the pressure plate 8. The pressure plate 8 cooperates with the bending forming die 10 to press the product 50 blank to prevent the product 50 blank from wrinkling or deforming. The sliding block 5 continues to drive the bending side punch 7 to move towards the product 50. The bending side punch 7 cooperates with the bending forming die 10 to achieve bending of the corresponding part of the product 50.

[0018] Specifically, the base 2 has a guide groove 21 at its top along the sliding direction of the sliding block 5, and the bottom of the sliding block 5 has a connecting block (not shown in the figure) protruding from its bottom surface. The connecting block is slidably connected to the guide groove 21. Preferably, the first reset member 6 is a nitrogen spring. The first reset member 6 is installed in the guide groove 21, and the piston rod of the first reset member 6 abuts against the connecting block. When the mold is closed, the sliding block 5 drives the connecting block to push the piston rod of the first reset member 6, and the piston rod of the first reset member 6 retracts. When the mold is opened, the insert drive block 1 moves upward, and the piston rod of the first reset member 6 returns to its original length due to the elastic force. The piston rod of the first reset member 6 pushes the connecting block back, thereby causing the sliding block 5 to reset on the base 2.

[0019] Preferably, the second reset member 9 is a nitrogen spring. The second reset member 9 is mounted on the pressure plate 8, and the piston rod of the second reset member 9 is connected to the sliding block 5. When the mold is closed, after the pressure plate 8 contacts the first abutment block 3 and the fixed block 4, the sliding block 5 continues to drive the bending side punch 7 to move towards the product 50. At this time, the piston rod of the second reset member 9 retracts, and the second reset member 9 can provide elastic clamping force to the pressure plate 8. When the mold is opened, the insert drive block 1 moves upward, and the sliding block 5 drives the bending side punch 7 to move back. The piston rod of the second reset member 9 returns to its original length due to the elastic force, driving the pressure plate 8 to reset.

[0020] Specifically, the sliding block 5 is provided with a 7-shaped first return hook 20 on both the front and rear sides of the pressure plate 8. The pressure plate 8 has a horizontally arranged first return groove 81 on both the front and rear sides. The first return groove 81 contains a limiting step 811 that matches the first return hook 20. One end of the first return hook 20 is fixedly connected to the sliding block 5 by a threaded fastener, and the other end is slidably connected to the first return groove 81. By setting the first return hook 20 and the second reset member 9, after each stamping, the second reset member 9, due to its elasticity, drives the pressure plate 8 to reset. The first return hook 20, in conjunction with the limiting step 811, ensures that the pressure plate 8 can accurately reset to its initial position.

[0021] The sliding block 5 has a 7-shaped second return hook 30 on both the front and rear sides of the driven inclined surface 51. The insert drive block 1 has an obliquely arranged second return groove 13 on both the front and rear sides. One end of the second return hook 30 is fixedly connected to the sliding block 5 by a threaded fastener, and the other end is slidably connected to the second return groove 13. By setting the second return hook 30, after each stamping is completed, the insert drive block 1 moves upward, and the second return hook 30 forcibly pulls the sliding block 5 back to its initial position, ensuring the accuracy of stamping.

[0022] A second support block 40 is also installed on the lower die. The second support block 40 is located next to the insert drive block 1. A first wear-resistant plate 401, which is parallel to the vertical plane 11 of the insert drive block 1, is fixedly connected to the second support block 40. The first wear-resistant plate 401 is a self-lubricating slide plate without oil supply. When the insert drive block 1 moves down, its vertical plane 11 is in close contact with the first wear-resistant plate 401. When the insert drive block 1 moves down and pushes the sliding block 5 to perform lateral punching, it will be subjected to the reaction force of the sliding block 5 and the workpiece. The second support block 40, by being in close contact with the vertical plane 11 of the insert drive block 1, directly bears and offsets part of the lateral force with its own rigidity, providing rigid support for the insert drive block 1 and ensuring that it maintains a stable posture.

[0023] The base 2 has guide plates 22 with a cross section of the shape of the number 7 fixedly connected to both sides of the sliding block 5; the bottom sides of the sliding block 5 are provided with protruding edges 52 along the length direction, the protruding edges 52 are slidably connected to the guide plates 22, and the guide plates 22 guide the protruding edges 52 to improve the movement accuracy of the sliding block 5.

[0024] The base 2 has a second wear-resistant plate 23 fixedly connected to the top, which is in contact with the bottom surface of the sliding block 5. The second wear-resistant plate 23 is a self-lubricating slide plate without oil supply.

[0025] The working process of this utility model is as follows:

[0026] When the upper and lower dies close, the upper die drives the insert drive block 1 to move downwards. The driving inclined surface 12 of the insert drive block 1 engages with the driven inclined surface 51 of the sliding block 5, pushing the sliding block 5 to the right to slide on the base 2. This causes the bending side punch 7 and the pressure plate 8 to move towards the first abutment block 3 and the fixed block 4 until the pressure plate 8 contacts the first abutment block 3 and the fixed block 4. At this time, the pressure plate 8 first engages with the bending forming die 10 to press the product 50 blank. The sliding block 5 continues to drive the bending side punch 7 to move towards the product 50. The head 7 cooperates with the bending forming die 10 to bend the corresponding part of the product 50. When the upper and lower dies open, the upper die drives the insert drive block 1 to move up away from the sliding block 5. Under the elastic force of the first reset member 6, the sliding block 5 drives the bending side punch 7 and the pressure plate 8 to move to the left. Under the elastic force of the second reset member 9, the pressure plate 8 is reset to the initial position. The bending side punch 7 and the pressure plate 8 are away from the product 50, which can avoid interference with the product 50. For the product 50 with a negative angle, it can be easily ejected when the die is opened.

[0027] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A lower-positioned wedge mechanism, comprising an upper die and a lower die, characterized in that: The upper die is equipped with a cutting drive block, which has a vertical plane on one side and a driving slope on the other side. The lower die is equipped with a base, a first abutment block, and a fixing block. The top of the base is equipped with a sliding block that can slide left and right. A first reset member is provided between the sliding block and the base. The end of the sliding block near the cutting drive block is equipped with a driven slope that matches the driving slope. The end of the sliding block away from the cutting drive block is equipped with a bending side punch and a pressure plate. The bending side punch is fixedly connected to the end of the sliding block. The pressure plate is slidably fitted onto the bending side punch, and a second reset member is provided between the pressure plate and the sliding block. The first abutment block and the fixing block are located beside the pressure plate and are used to limit the pressure plate. The top of the fixing block is equipped with a bending forming male that matches the bending side punch. The bending forming male and the bending side punch cooperate to bend the product.

2. The lower-positioned wedge mechanism according to claim 1, characterized in that: The base has a guide groove at the top along the sliding direction of the sliding block, and the sliding block has a connecting block protruding from the bottom surface. The connecting block is slidably connected to the guide groove. The first reset member is a nitrogen spring. The first reset member is installed in the guide groove, and the piston rod of the first reset member abuts against the connecting block.

3. The lower-positioned wedge mechanism according to claim 1, characterized in that: The second reset component is a nitrogen spring, which is mounted on the pressure plate, and the piston rod of the second reset component is connected to the sliding block.

4. The lower-positioned wedge mechanism according to claim 1, characterized in that: The sliding block is provided with a 7-shaped first return hook on both the front and rear sides of the pressure plate. The pressure plate is provided with a horizontally arranged first return groove on both the front and rear sides. The first return groove is provided with a limiting step that matches the first return hook. One end of the first return hook is fixedly connected to the sliding block, and the other end is slidably connected to the first return groove.

5. The lower-positioned wedge mechanism according to claim 1, characterized in that: The sliding block is provided with a 7-shaped second return hook on both the front and rear sides of the driven inclined surface. The insert drive block is provided with a second return groove arranged obliquely on both the front and rear sides. One end of the second return hook is fixedly connected to the sliding block, and the other end is slidably connected to the second return groove.

6. The lower-positioned wedge mechanism according to claim 1, characterized in that: A second support block is also installed on the lower mold. The second support block is located next to the insert drive block. A first wear-resistant plate that is parallel to the vertical plane of the insert drive block is fixedly connected to the second support block. When the insert drive block moves down, its vertical plane is in close contact with the first wear-resistant plate.

7. The lower-positioned wedge mechanism according to claim 1, characterized in that: The base is fixedly connected to guide plates with a cross-section in the shape of a number 7 on both sides of the sliding block; the bottom sides of the sliding block are provided with protruding edges along the length direction, and the protruding edges are slidably connected to the guide plates.

8. The lower-positioned wedge mechanism according to claim 1, characterized in that: A second wear-resistant plate that contacts the bottom surface of the sliding block is fixedly connected to the top of the base.

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