Plate shearing die capable of inversely installing knife edge and avoiding gap adjustment after knife sharpening

Abstract

The utility model relates to the field of plate shearing dies, in particular to a plate shearing die with an inverted knife edge capable of avoiding gap adjustment after knife sharpening. A female die is fixed to the base, mounting parts are arranged on the two sides of the inner wall of the shearing groove, blades are arranged in the mounting parts and installed at the adjusting end of a fine adjustment assembly, a threaded rod is rotationally installed on the side face of a mounting plate, and the threaded rod is arranged in the middle of three limiting holes in a penetrating mode. The first threaded sleeve is rotatably mounted on the side wall of the female die, when the distance between the blades is changed and cannot be sheared with a cutting edge of a convex edge of the male die, sliding limitation on the first limiting rod is relieved, the threaded rod extends in a shearing groove to push the blades mounted on the mounting plate to move, and then the distance between the two blades is adjusted. And after adjustment, the second inner hexagonal screw is tightened, so that the threaded end of the second inner hexagonal screw extends again to be arranged in the limiting groove, and the blade is prevented from shifting due to external force during machining operation.

Description

Technical Field

[0001] This utility model relates to the field of shearing molds, specifically a shearing mold with inverted blades to avoid adjusting the gap after sharpening the blades. Background Technology

[0002] Shearing dies are tools used for cutting sheet metal. They can precisely cut sheet metal according to a set shape and size. Through the cooperation of a punch and a die, both the punch and the die have cutting edges. The shearing force generated by the punch during the pressing process cuts the blank off the sheet metal to obtain a workpiece of the required shape. They are widely used in the automotive, home appliance, hardware, and construction industries.

[0003] Currently, the blades on shearing dies wear down during use. To ensure cutting accuracy, the blades need to be sharpened regularly. However, existing shearing dies require the upper blade to be removed for sharpening, which changes the position of the upper blade and affects cutting accuracy. Therefore, to address the above problem, a shearing die with an inverted blade design is proposed to avoid adjusting the gap after sharpening. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and address the problems existing in existing technologies, this utility model proposes a shearing mold with an inverted blade to avoid adjusting the gap after sharpening the blade.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The shearing mold of this utility model with inverted blade to avoid adjusting the gap after sharpening includes a base; a concave mold is fixed on the base, a shearing groove is provided through the concave mold, and mounting parts are provided on both sides of the inner wall of the shearing groove, and a blade is provided in the mounting part.

[0006] A fine-tuning component is provided on the side wall of the mounting part, and the blade is mounted on the adjustment end of the fine-tuning component;

[0007] The fine-tuning component includes three limiting holes, all of which are opened on the side wall of the mounting part. A first limiting rod is slidably arranged in the two outer limiting holes, and the ends of the two first limiting rods located in the mounting part are fixedly connected to a mounting plate. A threaded rod is rotatably installed on the side of the mounting plate. The threaded rod is inserted through the middle one of the three limiting holes. A first threaded sleeve is sleeved on the outside of the threaded rod and threadedly connected to it. The first threaded sleeve is rotatably installed on the side wall of the die cavity.

[0008] Preferably, the mounting plate is fitted inside the mounting part, and a first baffle is fixedly connected to the ends of the threaded rod and the two first limiting rods. Scale lines are provided on the ends of the two first limiting rods that extend outside the limiting holes.

[0009] Preferably, the blade has a fitting part on its side, a through hole is provided in the fitting part, and a threaded hole corresponding to the through hole is provided on the side wall of the mounting plate.

[0010] Preferably, a first internal hexagonal screw is provided in the fitting part, and the threaded end of the first internal hexagonal screw is threaded into the threaded hole through the through hole, and the head of the first internal hexagonal screw is fitted in the fitting part.

[0011] Preferably, each of the two No. 1 limiting rods is fitted with a sleeve, and the sleeve is fixed to the side wall of the die cavity. Each of the two No. 1 limiting rods is provided with a limiting groove.

[0012] Preferably, a No. 2 threaded sleeve is fixedly connected to both of the sleeves, and a No. 2 internal hexagonal screw is provided for the internal thread connection of the No. 2 threaded sleeve. The threaded end of the No. 2 threaded sleeve extends through the No. 2 threaded sleeve and the sleeve and is disposed in the limiting groove.

[0013] Preferably, two second-order limiting rods are fixedly connected to the concave die, and a punch is slidably arranged on the two second-order limiting rods. Both sides of the punch are provided with cutting edges corresponding to the two blades. The shearing machine body is installed on the base, and the punch is installed under the working end of the shearing machine body. A second-order baffle is fixedly connected to the ends of the two second-order limiting rods.

[0014] The advantages of this utility model are:

[0015] This invention releases the sliding restriction on the first limiting rod when the blade spacing changes and cannot shear with the cutting edge of the punch. By extending the threaded rod into the shearing groove, the blade mounted on the mounting plate is moved, thereby adjusting the spacing between the two blades. After adjustment, the second internal hexagonal screw is tightened, so that the threaded end of the second internal hexagonal screw is re-extended and positioned in the limiting groove, thus preventing the blade from shifting due to external force during machining. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment;

[0018] Figure 2 This is an enlarged cross-sectional view of the main structure of the die in this embodiment;

[0019] Figure 3 This is a cross-sectional enlarged schematic diagram of the main mounting structure of the fine-tuning component in this embodiment;

[0020] Figure 4 This is an enlarged schematic diagram of the punch body mounting structure in this embodiment;

[0021] Figure 5 This is an enlarged schematic diagram of area A in the cross-sectional view of the main installation structure of the fine-tuning component in this embodiment;

[0022] Figure 6 This is an enlarged schematic diagram of area B in the cross-sectional view of the main installation structure of the fine-tuning component in this embodiment.

[0023] In the diagram: 1. Base; 2. Die; 3. Shearing groove; 4. Mounting part; 5. Mounting plate; 6. Limiting hole; 7. Threaded sleeve No. 1; 8. Sleeve; 9. Limiting rod No. 1; 10. Threaded rod; 11. Blade; 12. Baffle No. 1; 13. Scale line; 14. Fitting part; 15. Through hole; 16. Threaded hole; 17. Socket headstock No. 1; 18. Limiting groove; 19. Threaded sleeve No. 2; 20. Socket headstock No. 2; 21. Limiting rod No. 2; 22. Punch; 23. Cutting edge; 24. Baffle No. 2; 25. Shearing machine body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] For examples, please refer to Figure 1-6 As shown, a shearing mold with an inverted blade to avoid adjusting the gap after sharpening includes a base 1; a concave mold 2 is fixed on the base 1, a shearing groove 3 is provided through the concave mold 2, and mounting parts 4 are provided on both sides of the inner wall of the shearing groove 3, and a blade 11 is provided in the mounting part 4.

[0026] A fine-tuning component is provided on the side wall of the mounting part 4, and the blade 11 is mounted on the adjustment end of the fine-tuning component;

[0027] The fine-tuning component includes three limiting holes 6, all of which are opened on the side wall of the mounting part 4. A first limiting rod 9 is slidably arranged in the two outer limiting holes 6, and the ends of the two first limiting rods 9 located in the mounting part 4 are fixedly connected to the mounting plate 5. A threaded rod 10 is rotatably installed on the side of the mounting plate 5. The threaded rod 10 is inserted through the middle one of the three limiting holes 6. A first threaded sleeve 7 is threadedly connected to the outside of the threaded rod 10, and the first threaded sleeve 7 is rotatably installed on the side wall of the die 2.

[0028] The mounting plate 5 is fitted into the mounting part 4. The ends of the threaded rod 10 and the two first limiting rods 9 are all fixed with a first baffle 12. The ends of the two first limiting rods 9 extending outside the limiting hole 6 are all provided with scale lines 13.

[0029] The blade 11 has a fitting part 14 on its side, and a through hole 15 is provided in the fitting part 14. The mounting plate 5 has a threaded hole 16 on its side wall that corresponds to the through hole 15.

[0030] The fitting part 14 is provided with a first internal hexagon screw 17, and the threaded end of the first internal hexagon screw 17 is threaded into the threaded hole 16 through the through hole 15. The head of the first internal hexagon screw 17 is fitted into the fitting part 14.

[0031] Both of the first limiting rods 9 are fitted with sleeves 8, and the sleeves 8 are fixed to the side wall of the die 2. Both of the first limiting rods 9 are provided with limiting grooves 18.

[0032] Both of the two sleeves 8 are fixedly connected with a No. 2 threaded sleeve 19. The No. 2 threaded sleeve 19 is internally threaded with a No. 2 internal hexagon screw 20, and the threaded end of the No. 2 threaded sleeve 19 extends through the No. 2 threaded sleeve 19 and the sleeve 8 and is located in the limiting groove 18.

[0033] Two second-order limiting rods 21 are fixedly connected to the concave mold 2. A punch 22 is slidably arranged on the two second-order limiting rods 21. Both sides of the punch 22 are provided with cutting edges 23 corresponding to the two blades 11. The shearing machine body 25 is installed on the base 1, and the punch 22 is installed under the working end of the shearing machine body 25. A second-order baffle 24 is fixedly connected to the ends of the two second-order limiting rods 21.

[0034] During operation, the blades on the shearing die wear down during use. To ensure cutting accuracy, the blades need to be sharpened regularly. However, existing shearing dies require the upper blade to be removed for sharpening, which changes the position of the upper blade and affects the cutting accuracy. In this solution, the shearing machine body 25 is controlled to drive the punch 22 to descend and perform shearing operation with the die 2. The shearing force formed by the intersection of the cutting edge 23 of the punch 22 and the blade 11 is used to shear the sheet metal.

[0035] When the blade 11 is worn and needs to be sharpened, the blade 11 can be removed from the mounting plate 5 for sharpening by unscrewing the No. 1 internal hex screw 17.

[0036] After the blade 11 is sharpened, it is installed. To ensure cutting accuracy, a measuring device is used to check if the distance between the two blades 11 has changed. If the distance between the blades 11 changes and they cannot shear with the cutting edge 23 of the protruding edge of the punch 22, the threaded end of the second hexagonal socket screw 20 is loosened and moved out of the limiting groove 18, thus releasing the sliding restriction on the first limiting rod 9. Then, the first threaded sleeve 7 is rotated. When the first threaded sleeve 7 rotates, it will drive the threaded rod 10... The extension and movement within the limiting hole 6 causes the threaded rod 10 to extend into the shearing groove 3, thereby pushing the blade 11 mounted on the mounting plate 5 to move, thus adjusting the distance between the two blades 11. The movement distance of the blade 11 can be obtained by reading the scale value on the scale line 13. After adjustment, the second internal hexagon screw 20 is tightened, so that the threaded end of the second internal hexagon screw 20 is re-extended and set in the limiting groove 18 to lock the first limiting rod 9, preventing the blade 11 from shifting due to external force during processing.

[0037] The combination of these components ensures the cutting precision of the shearing die, effectively guaranteeing the workpiece processing quality and allowing for adjustment of gap errors after blade grinding.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A shearing die with inverted blades to avoid adjusting the gap after grinding, characterized in that: Includes a base (1); a die (2) is fixed on the base (1), a shearing groove (3) is provided through the die (2), and an installation part (4) is provided on both sides of the inner wall of the shearing groove (3), and a blade (11) is provided in the installation part (4); A fine-tuning component is provided on the side wall of the mounting part (4), and the blade (11) is mounted on the adjustment end of the fine-tuning component; The fine-tuning component includes three limiting holes (6), all of which are opened on the side wall of the mounting part (4). A first limiting rod (9) is slidably arranged in the two outer limiting holes (6), and the ends of the two first limiting rods (9) located in the mounting part (4) are fixedly connected to the mounting plate (5). A threaded rod (10) is rotatably installed on the side of the mounting plate (5). The threaded rod (10) is disposed through one of the three limiting holes (6). A first threaded sleeve (7) is sleeved on the outside of the threaded rod (10) and threadedly connected to it. The first threaded sleeve (7) is rotatably installed on the side wall of the die (2).

2. The shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 1, characterized in that: The mounting plate (5) is fitted into the mounting part (4). The ends of the threaded rod (10) and the two first limiting rods (9) are all fixed with a first baffle (12). The ends of the two first limiting rods (9) extending outside the limiting hole (6) are all provided with scale lines (13).

3. A shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 1, characterized in that: The blade (11) has a fitting part (14) on its side, and a through hole (15) is provided in the fitting part (14). The mounting plate (5) has a threaded hole (16) on its side wall corresponding to the through hole (15).

4. A shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 3, characterized in that: The fitting part (14) is provided with a first internal hexagonal screw (17), and the threaded end of the first internal hexagonal screw (17) is threaded through the through hole (15) and connected to the threaded hole (16). The head of the first internal hexagonal screw (17) is fitted into the fitting part (14).

5. A shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 1, characterized in that: Both of the first limiting rods (9) are fitted with sleeves (8), and the sleeves (8) are fixed to the side wall of the die (2). Both of the first limiting rods (9) have limiting grooves (18).

6. A shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 5, characterized in that: A second threaded sleeve (19) is fixedly connected to each of the two sleeves (8). The second threaded sleeve (19) is internally threaded with a second internal hexagonal screw (20), and the threaded end of the second threaded sleeve (19) extends through the second threaded sleeve (19) and the sleeve (8) and is located in the limiting groove (18).

7. A shearing die for avoiding post-grinding gap adjustment by using an inverted blade according to claim 1, characterized in that: Two second-order limiting rods (21) are fixedly connected to the concave die (2). A punch (22) is slidably arranged on the two second-order limiting rods (21). Both sides of the punch (22) are provided with cutting edges (23) corresponding to the two blades (11). The shearing machine body (25) is installed on the base (1), and the punch (22) is installed under the working end of the shearing machine body (25). A second-order baffle (24) is fixedly connected to the ends of the two second-order limiting rods (21).

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