High-precision bending and stamping die
By designing high-precision bending and stamping dies and using hydraulic cylinders and multi-stage adjustment mechanisms to control the separation of the upper die from the material, the problem of material adhering to the upper die and falling off in mid-air is solved, thus achieving material protection and ensuring forming quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
When using bending and stamping dies, the upper die is prone to sticking to the material and causing it to fall off and become damaged by impact.
A high-precision bending and stamping die was designed. The upper die and multi-stage adjustment mechanism are driven by a hydraulic cylinder. By utilizing the difference in elastic coefficients of different springs, the separation and protection of the upper die and the material are controlled to prevent the material from falling out of the air.
It effectively prevents materials from falling off the ground, avoids material impact damage, and ensures the quality of material molding.
Smart Images
Figure CN224026175U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to processing device field, especially a kind of high-precision bending punch press die. BACKGROUND
[0002] Bending machine die, is the tool that bending machine is used to profile processing sheet material, this tool has various parts composition, different die is formed by different parts.It is mainly realized the processing of article shape by the change of profiled material physical state.
[0003] When using bending punch press die, material is placed on lower die, upper die will press material downwards, make upper die and lower die extrude bending material, make material become the curved shape required, and bend material into U shape once, generally adopt lower die to be movable die, upper die is driven by hydraulic pressure, when upper die presses material into U shape, upper die three side surfaces are pasted with material, it is very easy to cause upper die and material to adhere together, cause upper die and lower die to separate, upper die will pull material upwards, then, material will drop down by relying on its own gravity, make material and lower die produce hard collision, cause material to appear knock damage, for this, a kind of high-precision bending punch press die is needed, to prevent material from moving to suspended state with upper die, avoid material damage from falling. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at overcoming the defect that upper die is easy to adhere and pull material upwards to make material suspended and drop down and knock damage, and provides a kind of high-precision bending punch press die.
[0005] The technical scheme for realizing the above-mentioned purpose is: a kind of high-precision bending punch press die, including work desk, the hydraulic cylinder is installed on the work desk, the output end of the hydraulic cylinder is connected with upper die, the inside side wall of the work desk is connected with support plate, the top end side wall of the support plate is equipped with U-shaped groove, the inside side wall of the U-shaped groove is connected with two symmetrical first lower dies, the inside bottom end of the U-shaped groove is equipped with sliding hole, the sliding hole is slidably connected with slide rod, the bottom end of the slide rod is connected with first spring, the top end of the slide rod is connected with second lower die, the first lower die and second lower die are provided with adjusting mechanism, the adjusting mechanism is provided with limit mechanism, the width of the upper die is less than the width of the second lower die.
[0006] Preferably, the top end of the first lower die is flush with the top end of the support plate, and the upper die is located directly above the second lower die.
[0007] Preferably, the second lower die is located between the two first lower dies, and the two side walls of the second lower die are in contact with the two first lower dies respectively.
[0008] Preferably, the side wall of the sliding hole is provided with a heat dissipation hole.
[0009] Preferably, the adjusting mechanism comprises a first fixed block, a first guide rod, a second spring, a connecting rod, a supporting rod, a second fixed block and a second guide rod, the two ends of the first lower mold are connected with two symmetrically distributed first fixed blocks, the side wall of the first fixed block is connected with the first guide rod, the two ends of the second lower mold are connected with two symmetrically distributed second fixed blocks, the side wall of the second fixed block is connected with the second guide rod, the side wall of the first guide rod is slidably connected with the connecting rod, the side wall of the connecting rod is connected with the supporting rod, the bottom end of the supporting rod is slidably connected with the second guide rod, the bottom end of the connecting rod is connected with the second spring, and the bottom end of the second spring is connected with the first fixed block below.
[0010] Preferably, the side wall of the connecting rod is provided with a first through hole, the bottom end of the supporting rod is provided with a second through hole, the first through hole is slidably connected with the first guide rod, the second through hole is slidably connected with the second guide rod, and the elastic coefficients of the first spring and the second spring are different.
[0011] Preferably, the maximum moving distance of the connecting rod is greater than the moving distance of the second lower mold, and the shape of the supporting rod is L-shaped.
[0012] Preferably, the limiting mechanism comprises a U-shaped rod and a rotating rod, the top end of the connecting rod is connected with the U-shaped rod, the inner top end of the U-shaped rod is rotatably connected with the rotating rod, the rotating rod and the U-shaped rod are located between the upper mold and the first lower mold, and the side wall of the rotating rod is provided with a rubber pad.
[0013] The utility model discloses the beneficial effect is: because the elastic coefficient of first spring and second spring is different, makes the distance that connecting rod and second lower mold move upwards is different, makes the distance that second lower mold moves upwards greater than the upward moving distance of connecting rod, makes material board and push rotating rod upwards, and rotating rod promotes U-shaped rod, and U-shaped rod draws connecting rod and moves upwards, and makes connecting rod stretch second spring, and the shielding of rotating rod to material board, simultaneously, rotating rod also does not press material board rigidly, thereby avoids the situation that material board is adhered and is carried and hangs in midair and falls of upper mold, also avoids material board and is pressed and is damaged. ACCURACY OF DRAWINGS
[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0015] Figure 2 It is the desk cross section structure schematic diagram of the utility model;
[0016] Figure 3 It is the second lower mold cross section schematic diagram of the utility model;
[0017] Figure 4 It is the second lower mold overhead structure schematic diagram of the utility model;
[0018] Figure 5 is a schematic diagram of a connecting rod structure of the utility model;
[0019] Figure 6 is Figure 3 enlarged structure schematic diagram of A in the middle.
[0020] Reference signs:
[0021] 1, workbench; 2, hydraulic cylinder; 3, U-shaped groove; 4, upper die; 5, first lower die; 6, sliding hole; 7, first spring; 8, sliding rod; 9, second lower die; 10, adjusting mechanism; 1001, first fixed block; 1002, first guide rod; 1003, second spring; 1004, connecting rod; 1005, support rod; 1006, second fixed block; 1007, second guide rod; 11, limiting mechanism; 1101, U-shaped rod; 1102, rotating rod; 12, material plate. DETAILED DESCRIPTION
[0022] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of the importance of the opposite.
[0023] The utility model will be further described below in combination with the drawings.
[0024] Reference the drawings Figures 1-6The utility model provides a high-precision bending stamping die, including work table 1, hydraulic cylinder 2 is installed on work table 1, and the output end of hydraulic cylinder 2 is connected with upper die 4, and the inside side wall of work table 1 is connected with the supporting plate, and the top end side wall of supporting plate is equipped with U type groove 3, and the inside side wall of U type groove 3 is connected with two symmetrical first lower dies 5, and the inside bottom end of U type groove 3 is equipped with slide hole 6, and the side wall of slide hole 6 is equipped with heat dissipation hole, and slide hole 6 is slidably connected with slide rod 8, and the bottom end of slide rod 8 is connected with first spring 7, and the top end of slide rod 8 is connected with second lower die 9, and the top end of first lower die 5 is flush with the top end of supporting plate, and upper die 4 is located the upside of second lower die 9, and second lower die 9 is located between two first lower dies 5, and the both sides side wall of second lower die 9 is in contact with two first lower dies 5 respectively, and first lower die 5 and second lower die 9 are provided with adjusting mechanism 10, and adjusting mechanism 10 is provided with limit mechanism 11, and the width of upper die 4 is less than the width of second lower die 9.
[0025] Place material plate 12 on first lower die 5 and second lower die 9, and below rotating rod 1102, and push down upper die 4 by hydraulic cylinder 2, and make upper die 4 press down material plate 12 on second lower die 9, and make material plate 12 stamping bending into U shape, and make material plate 12 press down second lower die 9, and make second lower die 9 press down slide rod 8, and make slide rod 8 press down first spring 7, then, pull up again upper die 4, and make upper die 4 separate from material plate 12, and make first spring 7 push up slide rod 8, and make second lower die 9 push back to the original position, and make the top end of second lower die 9 flush with the top end of first lower die 5.
[0026] Reference drawings Figures 1-6The adjusting mechanism 10 comprises first fixed blocks 1001, first guide rods 1002, second springs 1003, connecting rods 1004, supporting rods 1005, second fixed blocks 1006 and second guide rods 1007, both ends of the first lower mold 5 are connected with two symmetrically distributed first fixed blocks 1001, the side wall of the first fixed block 1001 is connected with the first guide rod 1002, both ends of the second lower mold 9 are connected with two symmetrically distributed second fixed blocks 1006, the side wall of the second fixed block 1006 is connected with the second guide rod 1007, the side wall of the connecting rod 1004 is connected with the first guide rod 1002, the side wall of the connecting rod 1004 is provided with a first through hole, the bottom end of the supporting rod 1005 is provided with a second through hole, the first through hole is connected with the first guide rod 1002 in a sliding mode, the second through hole is connected with the second guide rod 1007 in a sliding mode, the elastic coefficient of the first spring 7 is different from that of the second spring 1003, the maximum moving distance of the connecting rod 1004 is greater than the moving distance of the second lower mold 9, the shape of the supporting rod 1005 is L-shaped, the side wall of the connecting rod 1004 is connected with the supporting rod 1005, the bottom end of the supporting rod 1005 is connected with the second guide rod 1007 in a sliding mode, the bottom end of the connecting rod 1004 is connected with the second spring 1003, and the bottom end of the second spring 1003 is connected with the first fixed block 1001 below.
[0027] Reference is made to the accompanying drawings Figures 5-6 The limiting mechanism 11 comprises a U-shaped rod 1101 and a rotating rod 1102, the top end of the connecting rod 1004 is connected with the U-shaped rod 1101, the inner top end of the U-shaped rod 1101 is rotatably connected with the rotating rod 1102, the rotating rod 1102 and the U-shaped rod 1101 are located between the upper mold 4 and the first lower mold 5, and the side wall of the rotating rod 1102 is sleeved with a rubber pad.
[0028] When the top end of the second lower mold 9 is aligned with the top end of the first lower mold 5, the bottom end of the supporting rod 1005 is located between the two second fixed blocks 1006, when the second lower mold 9 moves downward, the second lower mold 9 moves downward, the second lower mold 9 drives the second fixed block 1006 above to move downward, the second fixed block 1006 above delays to push the supporting rod 1005, so that the supporting rod 1005 drives the connecting rod 1004 to move downward, the connecting rod 1004 compresses the second spring 1003, at the same time, the connecting rod 1004 pulls the U-shaped rod 1101 downward, the U-shaped rod 1101 drives the rotating rod 1102 to move downward, the rotating rod 1102 moves above the material plate 12 formed by stamping, and the elastic coefficient of the first spring 7 is greater than that of the second spring 1003.
[0029] After the upper mold 4 is withdrawn upward, the first spring 7 and the second spring 1003 have different elastic coefficients, so that the connecting rod 1004 and the second lower mold 9 move different distances upward, the second lower mold 9 moves a distance greater than the connecting rod 1004, the material plate 12 is pushed upward by the rotating rod 1102, the rotating rod 1102 pushes the U-shaped rod 1101, the U-shaped rod 1101 pulls the connecting rod 1004 to move upward, the connecting rod 1004 stretches the second spring 1003, the rotating rod 1102 blocks the material plate 12, and the rotating rod 1102 does not press the material plate 12 hard, so that the material plate 12 is not adhered to the upper mold 4 and falls, and the material plate 12 is not damaged;
[0030] The second fixed block 1006 located above delays the pushing of the supporting rod 1005, and the second rotating rod 1102 and the material plate 12 have a spacing, so that the material plate 12 has time to be bent and formed, so that the rotating rod 1102 does not press the material plate 12 tightly and cause the material plate 12 to be unable to be normally punched, and the rotation of the rotating rod 1102 can reduce the frictional resistance with the material plate 12.
[0031] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced; and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A high-precision bending and stamping die comprising a workbench (1), characterized in that, The workbench (1) is provided with a hydraulic cylinder (2), the output end of the hydraulic cylinder (2) is connected with an upper mold (4), the inner side wall of the workbench (1) is connected with a support plate, the top end side wall of the support plate is provided with a U-shaped groove (3), the inner side wall of the U-shaped groove (3) is connected with two first lower molds (5) which are symmetrically distributed, the inner side bottom end of the U-shaped groove (3) is provided with a sliding hole (6), the sliding hole (6) is slidably connected with a sliding rod (8), the bottom end of the sliding rod (8) is connected with a first spring (7), the top end of the sliding rod (8) is connected with a second lower mold (9), the first lower mold (5) and the second lower mold (9) are provided with an adjusting mechanism (10), the adjusting mechanism (10) is provided with a limiting mechanism (11), the width of the upper mold (4) is smaller than the width of the second lower mold (9).
2. The high-precision bending and stamping die according to claim 1, characterized in that, The top end of the first lower mold (5) is flush with the top end of the support plate, and the upper mold (4) is located directly above the second lower mold (9).
3. The high-precision bending and stamping die according to claim 1, characterized in that, The second lower mold (9) is located between the two first lower molds (5), and the two side walls of the second lower mold (9) are in contact with the two first lower molds (5), respectively.
4. The high-precision bending and stamping die according to claim 1, characterized in that, The side wall of the sliding hole (6) is provided with a heat dissipation hole.
5. The high-precision bending and stamping die according to claim 1, characterized in that, The adjusting mechanism (10) comprises a first fixed block (1001), a first guide rod (1002), a second spring (1003), a connecting rod (1004), a support rod (1005), a second fixed block (1006) and a second guide rod (1007), the two ends of the first lower mold (5) are connected with two first fixed blocks (1001) which are symmetrically distributed, the side wall of the first fixed block (1001) is connected with the first guide rod (1002), the two ends of the second lower mold (9) are connected with two second fixed blocks (1006) which are symmetrically distributed, the side wall of the second fixed block (1006) is connected with the second guide rod (1007), the side wall of the first guide rod (1002) is slidably connected with the connecting rod (1004), the side wall of the connecting rod (1004) is connected with the support rod (1005), the bottom end of the support rod (1005) is slidably connected with the second guide rod (1007), the bottom end of the connecting rod (1004) is connected with the second spring (1003), and the bottom end of the second spring (1003) is connected with the first fixed block (1001) located below.
6. The high-precision bending and stamping die according to claim 5, characterized in that, The side wall of the connecting rod (1004) is provided with a first through hole, the bottom end of the support rod (1005) is provided with a second through hole, the first through hole is slidably connected with the first guide rod (1002), the second through hole is slidably connected with the second guide rod (1007), and the elastic coefficients of the first spring (7) and the second spring (1003) are different.
7. The high-precision bending and stamping die according to claim 5, characterized in that, The maximum moving distance of the connecting rod (1004) is greater than the moving distance of the second lower mold (9), and the shape of the support rod (1005) is L-shaped.
8. The high-precision bending and stamping die according to claim 5, characterized in that, The limiting mechanism (11) comprises a U-shaped rod (1101) and a rotating rod (1102), the top end of the connecting rod (1004) is connected with the U-shaped rod (1101), the inner top end of the U-shaped rod (1101) is rotationally connected with the rotating rod (1102), the rotating rod (1102) and the U-shaped rod (1101) are located between the upper die (4) and the first lower die (5), and the side wall of the rotating rod (1102) is provided with a rubber pad.