A distance-keeping propulsion hardware stamping die

Abstract

The utility model discloses a hardware punch press die of fixed distance propulsion relates to punch press die technical field, including lower die seat, be provided with the guide pillar and upper die seat on lower die seat, and the upper die seat is through the guide pillar and is slid with lower die seat butt joint, be provided with lower die kernel on lower die seat, be provided with the die groove on lower die kernel, be provided with upper die kernel on upper die seat, be provided with the punch head corresponding with die groove on upper die kernel, still be provided with the recess on lower die kernel, be provided with the pivot in recess, rotatablely be connected with the baffle on pivot, and the baffle upper end projects recess, and the edge of the material hole after the blank is punched and cut is close to recess one side and is in abutment, still be provided with the rebound mechanism acting on the baffle on pivot, makes the baffle after being rotated to the inside of recess by the blank can carry out rebound reset, through rotatable and rebounding baffle, can accurate control propulsion distance before every time punch press, realizes fixed distance propulsion, prevents causing material waste, and improves the stability of quality, material control in batch production.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a hardware stamping die with fixed-distance propulsion. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials into parts. In the stamping production of round hardware parts (such as rings, perforated discs, etc.), sheet metal needs to be continuously fed into the die for processing in successive passes. The accuracy of the distance the sheet metal is pushed into the die each time directly affects material utilization and can prevent waste or overlapping losses.

[0003] However, in existing stamping processes, the fixed-distance feeding of sheet metal still has significant drawbacks. For example, it relies on manual pushing of sheet metal, with operators judging the feeding distance based on experience. The lack of auxiliary functions for fixed-distance control leads to material waste. Furthermore, due to factors such as fatigue and differences in experience, it is difficult to maintain quality stability in mass production.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixed-distance advancing hardware stamping die, including a lower die base, a guide post and an upper die base are provided on the lower die base, and the upper die base is slidably connected to the lower die base through the guide post; The lower die base is provided with a lower die core, and the lower die core is provided with a die groove. The upper die base is provided with an upper die core, and the upper die core is provided with a stamping head corresponding to the die groove. The lower die core is also provided with a groove, and a rotating shaft is provided in the groove. A stop block is rotatably connected to the rotating shaft. The upper end of the stop block protrudes from the groove and abuts against the edge of the material hole of the sheet metal near the die groove after it has been punched. The rotating shaft is also equipped with a spring-back mechanism that acts on the stop block, so that the stop block can spring back and reset after being pushed and rotated into the groove by the sheet metal.

[0007] As a further embodiment of this utility model: the rebound mechanism includes torsion springs disposed on both sides of the rotating shaft, one end of the torsion spring being fixed to the rotating shaft and the other end being fixed to the stop block.

[0008] As a further embodiment of this utility model: side grooves are also provided on both sides of the groove, and a fixing block is provided in the side groove. The rotating shaft extends into the side groove and is connected to the fixing block.

[0009] As a further embodiment of this utility model: a pressure plate is provided on the lower mold core, and a slot corresponding to the mold groove and the groove is opened on the pressure plate. A pressure post corresponding to the two side grooves is provided at the lower end of the pressure plate, and the lower end of the pressure post is in contact with the upper end surface of the fixing block.

[0010] As a further embodiment of this utility model: the torsion spring is provided with a torsion arm one and a torsion arm two at both ends, the rotating shaft is provided with a insertion hole one, the side of the stop block is provided with an insertion hole two, the torsion arm one is inserted into the insertion hole one, and the torsion arm two is inserted into the insertion hole two.

[0011] As a further embodiment of this utility model: the pressure plate is provided with a push-limiting plate, and the push-limiting plate is provided with a push-limiting groove.

[0012] Compared with existing technologies, the beneficial effects of this technical solution are as follows: The sheet metal is placed on the lower die core and pushed forward so that the end of the sheet metal abuts against the stop block. Then, the upper die base drives the upper die core to perform die closing and stamping. After one stamping is completed and the die is separated, the operator removes the workpiece and continues to push the sheet metal forward. The sheet metal will push the stop block to rotate and enter the groove. Then, the material hole formed by the workpiece punching leaves the die groove. At the same time, the stop block is no longer blocked by the edge of the sheet metal. The spring mechanism makes the stop block rotate and reset and enter the material hole. When the edge of the material hole close to the die groove abuts against the stop block, the operator will feel resistance to the push. At this time, the material hole has completely moved away from the die groove, and the distance between the edge of the material hole and the die groove is properly controlled. At this time, the second die closing and stamping can be performed. By using the same operation, the pushing distance can be accurately controlled before each stamping, achieving fixed-distance pushing, preventing material waste, and improving the stability of quality and material control in mass production.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the lower mold base and the lower mold core of this utility model; Figure 3 This is a schematic diagram of the structure of the lower mold core of this utility model; Figure 4 This is a schematic diagram of the structure of the rotating shaft and the stop block of this utility model; Figure 5 yes Figure 3 Enlarged schematic diagram of a local structure at point A; Figure 6 This is a schematic diagram of the structure of the rotating shaft of this utility model; Figure 7 This is a schematic diagram of the structure of the stop block of this utility model; Figure 8 This is a schematic diagram of the structure of the pressure plate of this utility model; Figure 9 This is a structural schematic diagram of the entire utility model from another perspective; The corresponding labels in the attached diagram are explained as follows: 1. Lower mold base; 2. Guide pillar; 3. Upper mold base; 4. Lower mold core; 41. Mold groove; 42. Groove; 43. Side groove; 5. Upper mold core; 51. Punch head; 6. Rotating shaft; 61. Stop block; 62. Torsion spring; 63. Torsion arm one; 64. Torsion arm two; 65. Insertion hole one; 66. Insertion hole two; 7. Fixing block; 8. Pressure plate; 81. Pressure pillar; 9. Push limit plate; 91. Push limit groove. Detailed Implementation

[0016] 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 protection scope of the present utility model.

[0017] Please see Figure 1-9 A fixed-distance advancing hardware stamping die includes a lower die base 1, a guide post 2 and an upper die base 3 provided on the lower die base 1. The upper die base 3 is slidably connected to the lower die base 1 through the guide post 2. The guide post 2 provides precise guidance for the stamping process, ensuring the positional accuracy of the upper die base 3 when it moves downward to stamp, and ensuring the accuracy of the workpiece forming size. The lower mold base 1 is provided with a lower mold core 4, and a mold groove 41 is provided on the lower mold core 4. The upper mold base 3 is provided with an upper mold core 5, and a punching head 51 corresponding to the mold groove 41 is provided on the upper mold core 5. By providing a mold groove 41 on the lower mold core 4, the punching head 51 punches out the shape of the product according to the shape of the mold groove 41 during the mold closing process. Preferably, an ejector mechanism (not shown in the figure) is provided in the mold groove 41 to eject the punched workpiece from the mold groove 41. The ejector mechanism may include ejector pins located on both sides inside the mold groove 41. An ejector spring is provided at the lower end of the ejector pin to push the ejector pin to eject the workpiece out of the mold groove 41. Preferably, the upper mold base 3 should also be provided with a mounting seat (not shown in the figure) for connecting with the output shaft of the hydraulic system, so as to drive the upper mold base 3 and the upper mold core 5 to the lower mold core 4 to close and separate the mold through the telescopic shaft of the hydraulic system; The lower die core 4 is also provided with a groove 42, and a rotating shaft 6 is provided in the groove 42. A stop block 61 is rotatably connected to the rotating shaft 6. The upper end of the stop block 61 protrudes from the groove 42 and abuts against the edge of the material hole of the sheet metal after it is punched, which is close to the die groove 41. The rotating shaft 6 is also equipped with a spring-back mechanism that acts on the stop block 61, so that the stop block 61 can be spring-backed and reset after being pushed and rotated into the groove 42 by the sheet metal.

[0018] Specifically, such as Figures 1-4 As shown, the opening width of the groove 42 not only accommodates the stop 61, but also supports the protruding part of the stop 61 to rotate backward around the pivot 6 as it is pushed by the sheet metal, and then rotate into the groove 42. Therefore, after the sheet metal is placed on the lower die core 4, it is pushed from the other end so that the end of the sheet metal abuts against the stop. Then the upper die base 3 drives the upper die core 5 to perform die closing and stamping. After one stamping, the upper die core 5 and the lower die core 4 separate. Then the operator takes out the workpiece and continues to push the sheet metal. During the sheet metal pushing process, it will push the stop 61 to rotate into the groove 42. Then the workpiece is punched to form a material hole. As the material moves away from the mold groove 41, and the stop block 61 is no longer obstructed by the edge of the sheet metal, the spring-back mechanism causes the stop block 61 to rotate and reset, positioning it within the material hole. When the edge of the material hole near the mold groove 41 comes into contact with the stop block 61, the operator will feel resistance in the advance. At this point, the material hole has completely moved away from the mold groove 41, and the distance between the edge of the material hole and the mold groove 41 is properly controlled. At this point, the second die-closing stamping can be performed. By repeating the same operation, the advance distance can be precisely controlled before each stamping, achieving fixed-distance advance, preventing material waste, and improving the stability of quality and material control in mass production.

[0019] Based on the above embodiments, a rebound mechanism is further proposed, which includes torsion springs 62 disposed on both sides of the rotating shaft 6, with one end of the torsion spring 62 fixed to the rotating shaft 6 and the other end fixed to the stop block 61.

[0020] Specifically, when the stop block 61 is pushed and rotated by the sheet metal, it will drive the torsion spring 62 to rotate, so that the torsion spring stores elastic potential energy. When the stop block 61 is no longer blocked by the sheet metal, the torsion spring 62 releases energy and rebounds, so as to drive the stop block 61 to rotate and reset.

[0021] Based on the above embodiments, it is further proposed that side grooves 43 are extended on both sides of the groove 42, and a fixing block 7 is provided in the side groove 43. The rotating shaft 6 extends into the side groove 43 and is connected to the fixing block 7.

[0022] Specifically, such as Figure 4 and Figure 5 As shown, by opening a side groove 43 and setting a fixing block 7 in the side groove 43, and then connecting the rotating shaft 6 to the fixing block 7, the rotating shaft 6 is fixed to prevent the rotating shaft 6 from rotating and causing the storage of potential energy of the torsion spring 62 to be affected. The shape of the fixing block and the side groove 43 can be square.

[0023] Based on the above embodiments, it is further proposed that a pressure plate 8 is provided on the lower mold core 4, and the pressure plate 8 is provided with a slot corresponding to the mold groove 41 and the groove 42. The lower end of the pressure plate 8 is provided with a pressure post 81 corresponding to the two side grooves 43, and the lower end of the pressure post 81 is in contact with the upper end surface of the fixing block 7.

[0024] Specifically, such as Figure 8 As shown, by fixing the pressure plate 8 above the lower mold core 4, the pressure column 81 below the pressure plate 8 presses against the fixing block 7 to clamp the fixing block 7 and prevent the air from shaking up and down.

[0025] Based on the above embodiments, it is further proposed that the torsion spring 62 is provided with a first torsion arm 63 and a second torsion arm 64 at both ends, the rotating shaft 6 is provided with a first insertion hole 65, the side of the stop block 61 is provided with a second insertion hole 66, the first torsion arm 63 is inserted into the first insertion hole 65, and the second torsion arm 64 is inserted into the second insertion hole 66.

[0026] Specifically, such as Figure 6 and Figure 7 As shown, the first torsion arm 63 and the second torsion arm 64 of the torsion spring 62 are inserted into the first insertion hole 65 and the second insertion hole 66 of the rotating shaft 6 and the stop block 61, respectively, so that when the stop block 61 rotates, the other end of the torsion spring 62, namely the first torsion arm 63, is fixed, so as to avoid the limited potential energy storage caused by the rotation of the torsion spring 62.

[0027] Based on the above embodiments, it is further proposed that a push-limiting plate 9 is provided on the pressure plate 8, and a push-limiting groove 91 is provided on the push-limiting plate 9; the push-limiting groove 91 on the push-limiting plate 9 can keep the plate material in the same position during the push.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fixed-distance advancing metal stamping die, characterized in that, It includes a lower mold base (1), on which a guide post (2) and an upper mold base (3) are provided, and the upper mold base (3) is slidably connected to the lower mold base (1) through the guide post (2); The lower die base (1) is provided with a lower die core (4), and the lower die core (4) is provided with a die groove (41). The upper die base (3) is provided with an upper die core (5), and the upper die core (5) is provided with a punch head (51) corresponding to the die groove (41). The lower die core (4) is also provided with a groove (42), and a rotating shaft (6) is provided in the groove (42). A stop block (61) is rotatably connected to the rotating shaft (6). The upper end of the stop block (61) protrudes from the groove (42) and abuts against the edge of the material hole of the sheet metal after it is punched, which is close to the die groove (41). The rotating shaft (6) is also provided with a spring-back mechanism that acts on the stop block (61), so that the stop block (61) can be spring-backed and reset after being pushed and rotated into the groove (42) by the sheet metal.

2. The fixed-distance propulsion metal stamping die according to claim 1, characterized in that, The rebound mechanism includes torsion springs (62) disposed on both sides of the rotating shaft (6), one end of the torsion spring (62) being fixed to the rotating shaft (6) and the other end being fixed to the stop block (61).

3. The fixed-distance advancing metal stamping die according to claim 2, characterized in that, Side grooves (43) are also provided on both sides of the groove (42), and a fixing block (7) is provided in the side groove (43). The rotating shaft (6) extends into the side groove (43) and is connected to the fixing block (7).

4. The fixed-distance propulsion metal stamping die according to claim 3, characterized in that, The lower mold core (4) is provided with a pressure plate (8), and the pressure plate (8) is provided with a slot corresponding to the mold groove (41) and the groove (42). The lower end of the pressure plate (8) is provided with a pressure column (81) corresponding to the two side grooves (43), and the lower end of the pressure column (81) is in contact with the upper surface of the fixing block (7).

5. The fixed-distance advancing metal stamping die according to claim 4, characterized in that, The torsion spring (62) is provided with a torsion arm one (63) and a torsion arm two (64) at both ends. The rotating shaft (6) is provided with a first insertion hole (65), and the side of the stop block (61) is provided with a second insertion hole (66). The torsion arm one (63) is inserted into the first insertion hole (65), and the torsion arm two (64) is inserted into the second insertion hole (66).

6. The fixed-distance advancing metal stamping die according to claim 5, characterized in that, The pressure plate (8) is provided with a push-limit plate (9), and the push-limit plate (9) is provided with a push-limit groove (91).

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