Punching die for adjusting bending angle of bending piece

Abstract

The utility model discloses a kind of stamping die for adjusting the bending angle of bending piece, including push block, one angle is equipped with top block;Back block, push block, back block are located at the both sides of bending piece respectively, push block has the freedom of relatively approaching or moving away from back block;L-shaped piece, back block has guide slot, L-shaped piece includes first flat section, second flat section that is connected with acute angle integrally, second flat section is movably assembled with guide slot and has the linear translation freedom along guide slot;Adjusting rod, pass through back block and from the inner wall of guide slot, adjusting rod can adjust the amount of being inserted into guide slot, one end of adjusting rod can abut L-shaped piece;Wherein, the end of first flat section away from second flat section and top block can jointly hold the bending place of bending piece. The utility model is accurately controlled L-shaped piece position by adjusting rod, realize the stable adjustment and compensation to bending angle of bending piece of different thickness, effectively guarantee angle consistency.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, specifically to a stamping die for adjusting the bending angle of bent parts. Background Technology

[0002] In the field of stamping dies, bending is a common process for workpiece processing. Conventional bending stamping dies have the advantages of simple and stable structure and high production efficiency due to the design of matching the bending punch and the bending block with the same material thickness. They are widely used in industrial production.

[0003] However, in actual production, the incoming materials often have thickness tolerances, which leads to unstable bending angles of the bent parts. After each loading, the bending angle of the workpiece deviates, resulting in out-of-tolerance characteristic dimensions of the bent parts. The functional features and shapes cannot be accurately guaranteed, which not only reduces the product yield but also makes it difficult to meet the core functional requirements such as product position accuracy, thus restricting production stability and product quality. Therefore, improvements in molds are urgently needed. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a stamping die for adjusting the bending angle of a bent part.

[0005] To solve the above problems, this utility model provides a stamping die for adjusting the bending angle of bent parts. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A stamping die for adjusting the bending angle of a bent part includes: a push block with a top block mounted at one corner; a back block, wherein the push block and the back block are located on opposite sides of the bent part, and the push block has a degree of freedom to move relatively close to or away from the back block; an L-shaped part, wherein the back block has a guide groove, and the L-shaped part includes a first straight section and a second straight section integrally connected at an acute angle, the second straight section being movably assembled with the guide groove and having a degree of freedom to translate linearly along the guide groove; and an adjusting rod, which passes through the back block and extends out from the inner wall of the guide groove, the adjusting rod being able to adjust the amount of insertion into the guide groove, and one end of the adjusting rod being able to abut against the L-shaped part; wherein the end of the first straight section away from the second straight section and the top block are able to jointly clamp the bent part of the bent part.

[0006] As a further improvement of this utility model, the bending member includes an integral first flat plate portion and a second flat plate portion that are at an angle to each other. The junction of the first flat plate portion and the second flat plate portion is the bending point of the bending member. The two sides of the bending point form an external corner side and an internal corner side, respectively. The back block is located on the internal corner side, and the push block is located on the external corner side. The top block can contact the second flat plate, the end of the first straight section contacts the second flat plate, and one side of the first straight section contacts the first flat plate.

[0007] As a further improvement of this utility model, the top block has a convex curved surface that can contact the second flat plate portion.

[0008] As a further improvement of this utility model, the push block has a horizontal translational degree of freedom, and the back block has a vertical lifting degree of freedom.

[0009] As a further improvement of this utility model, the first straight section extends in the horizontal direction and is located at the bottom of the L-shaped part, and the top of the second straight section is inclined towards the side closer to the push block.

[0010] As a further improvement of this utility model, the adjusting rod and the back block are assembled by threads, and the axis of the adjusting rod is perpendicular to the length direction of the first straight section.

[0011] As a further improvement of this utility model, a punch is provided on one side of the push block. The punch has a vertical lifting freedom. The outer walls of the push block and the punch are respectively provided with a third inclined surface and a second inclined surface. The third inclined surface and the second inclined surface are parallel to each other and can slide in contact with each other.

[0012] As a further improvement of this utility model, a insert knife is provided on one side of the punch, the insert knife has a horizontal translational degree of freedom, and the outer wall of the insert knife has a first inclined surface, which can slide in contact with the punch.

[0013] As a further improvement of this utility model, the angle between the first inclined plane and the horizontal plane is smaller than the angle between the second inclined plane and the horizontal plane.

[0014] As a further improvement of this utility model, the degree range of the acute angle between the first straight segment and the second straight segment is 70° to 80°.

[0015] The beneficial technical effects of using the stamping die for adjusting the bending angle of bent parts according to this application are: To ensure a stable clamping base at the bend of the bent part, the push block and the back block are positioned relatively close to or far apart. Together with the top block and the first straight section of the L-shaped part, they provide a joint clamping effect at the bend, ensuring that the bent part maintains precise positioning during angle adjustment. This avoids angle adjustment deviations caused by clamping displacement and provides a prerequisite for precise control of the bending angle.

[0016] The bending angle can be controlled and adjusted. The adjusting rod can adjust the amount of extension into the guide groove and abut against the L-shaped part. Combined with the linear translational freedom of the second straight section of the L-shaped part along the guide groove, the position of the L-shaped part can be changed to adjust its interaction with the top block at the bending point of the bent part, thereby achieving flexible adjustment of the bending angle and breaking the limitation of fixed and unadjustable bending angle of conventional molds.

[0017] To improve adaptability to different working conditions, the position of the L-shaped part can be adjusted by adjusting the adjustment rod. The clamping and bending parameters can be adjusted according to the actual situation such as the thickness and hardness of the bent part, so as to avoid the instability of the bending angle caused by changes in incoming materials or working conditions and ensure the consistency of the bending angle.

[0018] The adjustment amount can be adjusted according to the different tolerances of the incoming materials to ensure the bending angle. This ensures product dimensions, improves product yield, reduces production defects, and enhances production stability and quality assurance. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of a bending component according to one embodiment of the present invention; Figure 2 This is an application diagram of one embodiment of the present invention; Figure 3 This is an application diagram of one embodiment of the present invention; Figure 4 This is a schematic diagram illustrating one embodiment of the present invention.

[0021] 1-Base; 2-Insertion tool; 201-First inclined surface; 3-Punch; 301-Second inclined surface; 4-Push block; 401-Snap-fit ​​groove; 402-Third inclined surface; 5-Bending part; 501-First flat plate part; 502-Second flat plate part; 6-Back block; 601-Guide groove; 7-L-shaped part; 701-First straight section; 702-Second straight section; 8-Top block; 801-Convex curved surface; 9-Adjusting rod. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, please refer to Figures 1 to 4A stamping die for adjusting the bending angle of a bent part includes: a push block 4, with a top block 8 mounted at one corner, the surface of the push block 4 having a recessed locking groove 401, and the top block 8 being fixed to the locking groove 401. A back block 6, the push block 4 and the back block 6 being located on opposite sides of the bent part 5, the push block 4 having the freedom to move relatively closer to or further away from the back block 6. An L-shaped part 7, the back block 6 having a guide groove 601, the L-shaped part 7 including a first straight section 701 and a second straight section 702 integrally connected at an acute angle, the second straight section 702 being movably assembled with the guide groove 601 and having the freedom to translate linearly along the guide groove 601. An adjusting rod 9, passing through the back block 6 and exiting through the inner wall of the guide groove 601, one end of the adjusting rod 9 being able to abut against the L-shaped part 7. The end of the first straight section 701 away from the second straight section 702, together with the top block 8, can clamp the bent portion of the bent part 5.

[0023] in, Figure 2 It is a three-dimensional perspective. Figure 3 , Figure 4 It is also the main view perspective. Figure 3 It is in the closed mold state. Figure 4 It is in the mold-open state.

[0024] Figure 1 The diagram illustrates that the second flat plate portion 502 in the bending component 5 has multiple spatial position states, which means that if the bending angle is not well controlled, the actual angle between the first flat plate portion 501 and the second flat plate portion 502 in the bending component 5 is unstable after being subjected to external force.

[0025] The beneficial effects of adopting the above technical solution are: in actual work, such as Figure 4 As shown, the bent piece 5 enters the designated position, at which point the L-shaped piece 7 is at its extreme position, far from the bottom surface of the guide groove 601. Next, as the push block 4 and the back block 6 approach each other, the top block 8 and the L-shaped piece 7 clamp the bent piece 5. With further movement of the push block 4 and the back block 6, the L-shaped piece 7 slowly enters the guide groove 601. Due to the guiding effect of the guide groove 601 along its own length, the first straight section 701 of the L-shaped piece 7 also moves along its own length, which can be understood as a forward extension. At this time, the squeezing and shaping effect of the top block 8 and the end of the first straight section 701 on the bent piece 5 becomes increasingly severe. Assuming the standard included angle at the bend of the bent piece 5 is 90°, then... Figure 2 , Figure 3 As shown, this is similar to overcorrection. Since the first straight section 701 extends forward, it is equivalent to the back block 6 retracting backward. This also makes it easier to provide the bending part 5 with the operating space for overcorrection.

[0026] In addition, by controlling the amount by which the adjusting rod 9 enters the guide groove 601, the effective length of the guide groove 601 is effectively changed, thereby changing the range of the forward extension and backward retraction of the L-shaped part 7, thus adapting to the shaping requirements of bending parts 5 of different thicknesses.

[0027] In some other embodiments of this utility model, the bending member 5 includes an integral first flat plate portion 501 and a second flat plate portion 502 that are at an included angle to each other. The junction of the first flat plate portion 501 and the second flat plate portion 502 is the bending point of the bending member 5. The two sides of the bending point form an external angle side and an internal angle side, respectively. The back block 6 is located on the internal angle side, and the push block 4 is located on the external angle side. The top block 8 can contact the second flat plate portion 502, the end of the first straight section 701 contacts the second flat plate portion 502, and one side of the first straight section 701 contacts the first flat plate portion 501.

[0028] The beneficial effects of adopting the above technical solution are: clarifying the structure of the first flat plate portion 501 and the second flat plate portion 502 of the bent part 5, and through the arrangement of the back block 6 located on the inside corner side and the push block 4 located on the outside corner side, the top block 8 and the end of the first straight section 701 respectively contact the second flat plate portion 502, ensuring that the clamping force is concentrated at the bending point, enhancing the clamping uniformity, reducing bending angle fluctuations, and improving the consistency of bending dimensions.

[0029] In some other embodiments of the present invention, the top block 8 has a convex curved surface 801 that can contact the second flat plate portion 502.

[0030] The beneficial effects of adopting the above technical solution are: the convex curved surface 801 of the top block 8 contacts the second flat plate portion 502 to form a smooth force point, reduce contact stress, prevent the surface of the bent part 5 from being crushed or deformed, and at the same time allow the top block 8 to self-adjust during the clamping process, improve the clamping fit, and further ensure the accuracy of the bending angle.

[0031] In some other embodiments of this utility model, the push block 4 has a horizontal translational degree of freedom, and the back block 6 has a vertical lifting degree of freedom.

[0032] The beneficial effects of adopting the above technical solution are: the push block 4 has a horizontal translational degree of freedom and the back block 6 has a vertical lifting degree of freedom, realizing the coordinated movement of the push block 4 and the back block 6, simplifying the mold operation process, improving clamping and release efficiency, and ensuring the stability of the position of the bent part 5 during the processing.

[0033] In some other embodiments of the present invention, the first straight section 701 extends in the horizontal direction and is located at the bottom of the L-shaped member 7, and the top of the second straight section 702 is inclined toward the side closer to the push block 4.

[0034] The beneficial effects of adopting the above technical solution are: the first horizontal straight section 701 provides stable support, the second inclined straight section 702 optimizes the force transmission path, and improves the response speed and accuracy of angle adjustment. The L-shaped part 7 can fall into the lowest position due to its own weight, that is, the state in which the L-shaped part 7 is furthest away from the guide groove 601.

[0035] like Figure 4 As shown, in some other embodiments of this utility model, the adjusting rod 9 and the back block 6 are threaded together, and the axis of the adjusting rod 9 is perpendicular to the length direction of the first straight section 701. The surface of the adjusting rod 9 has external threads. The adjusting rod 9 is a threaded rod.

[0036] The beneficial effects of adopting the above technical solution are: to realize the fine adjustment function of the adjusting rod 9, to accurately control the amount of its extension into the guide groove 601, thereby stabilizing the position of the L-shaped part 7 and ensuring that it can adapt to bending parts 5 of different specifications.

[0037] In some other embodiments of this utility model, a punch 3 is provided on one side of the push block 4. The punch 3 has a vertical lifting freedom. The outer walls of the push block 4 and the punch 3 are respectively provided with a third inclined surface 402 and a second inclined surface 301. The third inclined surface 402 and the second inclined surface 301 are parallel to each other and can slide in contact with each other.

[0038] The beneficial effects of adopting the above technical solution are: the vertical movement of the punch 3 is converted into the horizontal movement of the push block 4, realizing the efficient clamping and bending action of the bending part 5, with a compact structure, reliable transmission, and improved overall mold operation efficiency.

[0039] In some other embodiments of this utility model, a insert 2 is provided on one side of the punch 3. The insert 2 has a horizontal translational degree of freedom. The outer wall of the insert 2 has a first inclined surface 201, which can slide in contact with the punch 3.

[0040] The end of the insert 2 that is away from the first inclined plane 201 is also fixed with a base 1.

[0041] Punch 3 is located diagonally above one side of push block 4, and back block 6 is located diagonally above the other side of push block 4.

[0042] The beneficial effects of adopting the above technical solution are: the horizontal movement of the insert 2 drives the vertical movement of the punch 3, forming a multi-stage transmission mechanism, which enhances the mold's control over the bending process, improves its flexibility and adaptability to different working conditions.

[0043] In some other embodiments of this utility model, the angle between the first inclined plane 201 and the horizontal plane is smaller than the angle between the second inclined plane 301 and the horizontal plane.

[0044] The beneficial effects of adopting the above technical solution are: optimizing the matching of the inclined plane angle, ensuring that the force transmission of the inserter 2 and the punch 3 is more efficient during the movement, and facilitating the amplification of the final end force.

[0045] In some other embodiments of this utility model, the acute angle between the first straight segment 701 and the second straight segment 702 ranges from 70° to 80°.

[0046] In addition, the top of the second straight section 702 has an enlarged head, which prevents the L-shaped part 7 from falling out of the guide groove 601.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A stamping die for adjusting the bending angle of a bent part, characterized in that, include: The push block has a top block attached to one corner; The back block, the push block and the back block are respectively located on both sides of the bending member, and the push block has the degree of freedom to move relatively close to or away from the back block; The L-shaped component has a guide groove on the back block. The L-shaped component includes a first straight section and a second straight section that are integrally connected at an acute angle. The second straight section is movably assembled with the guide groove and has a linear translational freedom along the guide groove. An adjusting rod passes through the back block and exits through the inner wall of the guide groove. The adjusting rod can adjust the amount of insertion into the guide groove, and one end of the adjusting rod can abut against the L-shaped piece. Among them, the end of the first straight section away from the second straight section and the top block can jointly clamp the bending part of the bending piece.

2. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The bending component includes an integral first flat plate portion and a second flat plate portion that are at an angle to each other. The junction of the first flat plate portion and the second flat plate portion is the bending point of the bending component. The two sides of the bending point form an external corner side and an internal corner side, respectively. The back block is located on the internal corner side, and the push block is located on the external corner side. The top block can contact the second flat plate, the end of the first straight section contacts the second flat plate, and one side of the first straight section contacts the first flat plate.

3. The stamping die for adjusting the bending angle of a bent part according to claim 2, characterized in that: The top block has a convex curved surface that can contact the second flat plate portion.

4. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The push block has a horizontal translational degree of freedom, and the back block has a vertical lifting degree of freedom.

5. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The first straight section extends horizontally and is located at the bottom of the L-shaped piece, while the top of the second straight section is inclined toward the side closer to the push block.

6. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The adjusting rod is threadedly assembled with the back block, and the axis of the adjusting rod is perpendicular to the length direction of the first straight section.

7. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The push block is provided with a punch on one side, the punch has vertical lifting freedom, the outer walls of the push block and the punch are respectively provided with a third inclined surface and a second inclined surface, the third inclined surface and the second inclined surface are parallel to each other, and the third inclined surface and the second inclined surface can slide in contact with each other.

8. The stamping die for adjusting the bending angle of a bent part according to claim 7, characterized in that: The punch has a insert blade on one side, the insert blade has a horizontal translational degree of freedom, and the outer wall of the insert blade has a first inclined surface, which can slide in contact with the punch.

9. The stamping die for adjusting the bending angle of a bent part according to claim 8, characterized in that: The angle between the first inclined plane and the horizontal plane is smaller than the angle between the second inclined plane and the horizontal plane.

10. The stamping die for adjusting the bending angle of a bent part according to claim 1, characterized in that: The acute angle between the first straight segment and the second straight segment ranges from 70° to 80°.

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