Stamping die for left and right hinge brackets and spring supports
By designing a stamping die that includes a nitrogen spring-driven floating pressure seat, the problem of material extrusion during the first flanging process of the left and right hinge supports and spring supports was solved, achieving efficient and low-cost processing and improving product quality and die life.
Patent Information
- Application Number
- CN202511886335.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-02-24
AI Technical Summary
In the existing technology, the outer edges of the left and right hinge brackets and spring supports are prone to material extrusion during the first flanging process, which affects product quality. In addition, the mold design is complex, with many processes and great difficulty.
Design a stamping die that includes an upper die holder and a lower die holder, utilizes a floating pressure plate driven by a nitrogen spring, combines multiple processing stations and specific cutting blocks to achieve full-process stamping, avoid material extrusion, and simplify the die structure.
This has improved product quality, reduced processing costs, increased production efficiency, extended the service life of molds, and ensured processing accuracy and stability.
Smart Images
Figure CN121551480A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to stamping equipment, and more specifically to a stamping die for a left and right hinge bracket and a spring support. Background Technology
[0002] Figure 1 This is a schematic diagram of the left and right hinge brackets and spring supports. During processing, punching and trimming are typically performed on the sheet metal, followed by gradual flanging and shaping, finally separating the left and right workpieces. However, during the initial flanging process, material extrusion easily occurs at the outer edge of the product, affecting product quality. Furthermore, due to the complex structure of the workpiece, there are many die-stamping processes, making die design challenging. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a stamping die for a left and right hinge bracket and a spring support with good finished product quality.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a stamping die for a left and right hinge bracket and a spring support, including an upper die base and a lower die base, wherein a floating pressure seat is provided on the upper die base through a plurality of nitrogen springs;
[0005] The lower die base has twelve processing stations. At the first station, the lower die base has a pair of punching die buttons for punching feeding and positioning holes. The upper die base has matching punching punches. At the middle of the second station, the lower die base has a pair of middle cutting seats for punching the connecting part between the left and right workpieces and the excess material at the outer end of the narrow part of the left and right workpieces. The upper die base has a pair of matching upper cutting blocks. The floating pressure seat has clearance holes to avoid the upper cutting blocks. At the third station, the lower die base has outer cutting lower blades for punching the excess material on the outer side of the left and right workpieces respectively. The upper die base has matching outer cutting upper blades. The floating pressure seat has clearance holes to avoid the outer cutting upper blades.
[0006] The lower die base has a first flanging lower cutting block at the fourth station, which folds the outer edges of the workpieces on the left and right sides; the upper floating pressure base has a first flanging upper cutting block. The lower die base has a boss initial punching lower forming block at the fifth station; the upper die base has a matching boss initial punching upper forming block; the floating pressure base has a clearance hole to avoid the boss initial punching upper forming block. The sixth station is empty. The lower die base has a boss second punching lower forming block at the seventh station; the upper die base has a matching boss second punching upper forming block; the floating pressure base has a clearance hole to avoid the boss second punching upper forming block. The eighth station is empty.
[0007] The lower die base has a first lower forming block at the ninth station, and a wedge drive block is provided on the outside of the first lower forming block; the upper die base has a matching first upper forming block, and a movable wedge seat that matches the wedge drive block is provided on the outside of the first upper forming block. The movable wedge seat has a flange block that bends the side of the workpiece so that its top surface is parallel to the horizontal plane; the floating pressure plate has a clearance hole for avoiding the first upper forming block and a clearance slot for avoiding the movable wedge seat; the tenth station is empty;
[0008] The lower die base has two pairs of top punching die buttons at the eleventh station, which are used to punch a pair of through holes on the top surface of the left and right workpieces respectively; the upper die base has matching top punching punches; the upper floating pressure plate has clearance holes to avoid the top punching punches.
[0009] The lower die base is equipped with a blanking module at the twelfth station. The blanking module has a blanking groove for punching the excess material between the left and right parts. The upper floating pressure base is equipped with an upper pressure module that cooperates to press the top surface of the workpiece. The upper die base is equipped with an upper blanking blade block that cooperates with the blanking groove and passes through the upper pressure module.
[0010] As a preferred embodiment, a reinforcing plate is provided at the eleventh station on the floating pressure base, and the reinforcing plate is provided with two pairs of avoidance holes to avoid the top punch.
[0011] As a preferred embodiment, the upper mold base is provided with a plurality of mold closing guide pillars, the upper floating pressure base is provided with a plurality of guide holes for each mold closing guide pillar to pass through, and the lower mold base is provided with a plurality of mold closing guide seats that cooperate with each mold closing guide pillar.
[0012] As a preferred embodiment, the upper mold base is provided with a pair of limiting guide plates at the sixth station, and the upper floating pressure material base is provided with a guide groove on each side that cooperates with the limiting guide plates.
[0013] As a preferred embodiment, the lower mold base is provided with a pair of inverted L-shaped side limiters at the sixth, eighth, and eleventh stations to restrict the position of the workpiece side; the upper floating pressure base is provided with clearance holes to avoid the side limiters.
[0014] As a preferred embodiment, the lower mold base is provided with a pair of inverted L-shaped plate limiting members at the first and second work stations respectively to restrict the side position of the plate; the upper floating pressure plate base is provided with avoidance holes to avoid the plate limiting members.
[0015] The beneficial effects of this invention are:
[0016] This stamping die has a compact structure and completes the entire stamping process of the workpiece using only one die, resulting in low processing costs and high processing efficiency. Furthermore, because the lower die base has a first flanging lower cutter block at the fourth station to fold the outer edges of the workpiece on the left and right sides, and the upper floating pressure plate has a first flanging upper cutter block; by setting a pre-flanging process, the product edge section can avoid contact with the flanging shaping insert in the subsequent flanging and shaping process, thereby eliminating product extrusion defects.
[0017] Because a reinforcing plate is provided at the eleventh station on the floating pressure seat, and the reinforcing plate is provided with two pairs of avoidance holes to avoid the impact of the top punching punch, so as to cope with the impact of the punching punch during the punching process and ensure the service life of the floating pressure seat.
[0018] Because the upper mold base is provided with several mold closing guide pillars, the upper floating pressure plate is provided with several guide holes for each mold closing guide pillar to pass through, and the lower mold base is provided with several mold closing guide seats that cooperate with each mold closing guide pillar, the mold closing accuracy during processing is ensured.
[0019] Because the upper mold base is equipped with a pair of limiting guide plates at the sixth station, and the upper floating pressure base is provided with a guide slot on each side that cooperates with the limiting guide plates, the operation of the upper floating pressure base is guaranteed to be stable. Attached Figure Description
[0020] Figure 1 This is a structural diagram of the left and right hinge brackets and spring supports.
[0021] Figure 2 This is a schematic diagram of the upper mold structure.
[0022] Figure 3 This is a schematic diagram of the lower mold structure.
[0023] Figure 4 A schematic diagram of the processing steps for each stage.
[0024] In the figure: 1 Upper die base, 2 Lower die base, 3 Floating pressure plate base; 4 Punching die button; 5 Punching punch; 6 Middle cutting plate base, 7 Upper cutting block, 8 Outer cutting lower blade block, 9 Outer cutting upper blade block, 10 First flanging lower blade block, 11 First flanging upper blade block.
[0025] 12. Boss initial punch lower forming block; 13. Boss initial punch upper forming block; 14. Boss second punch lower forming block; 15. Boss second punch upper forming block; 16. First lower forming block; 17. Wedge drive block; 18. First upper forming block; 19. Movable wedge seat; 20. Flanging block.
[0026] 21 Top punching die button; 22 Top punching punch; 23 Reinforcing plate; 24 Lower blanking module; 25 Blanking cutter groove; 26 Upper pressure module; 27 Upper blanking cutter block; 28 Mold closing guide post; 29 Mold closing guide seat; 30 Limiting guide plate; 31 Sheet material limiting component; 32 Side limiting component. Detailed Implementation
[0027] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0028] like Figure 2-3 As shown, a stamping die with left and right hinge brackets and spring supports includes an upper die base 1 and a lower die base 2. The upper die base 1 is provided with a floating pressure seat 3 via several nitrogen springs.
[0029] The lower die base 2 has twelve processing stations. At the first station, the lower die base 2 has a pair of punching die buttons 4 for punching feeding and positioning holes. The upper die base 1 has a matching punching punch 5. At the middle of the second station, the lower die base 2 has a pair of middle cutting seats 6 for punching the connecting part between the left and right workpieces and the excess material at the outer end of the narrow part of the left and right workpieces. The upper die base 1 has a pair of matching upper cutting blocks 7. The floating pressure seat 3 has a clearance hole to avoid the upper cutting blocks 7. At the third station, the lower die base 2 has an outer cutting lower blade 8 for punching the excess material on the outer side of the left and right workpieces respectively. The upper die base 1 has a matching outer cutting upper blade 9. The floating pressure seat 3 has a clearance hole to avoid the outer cutting upper blade 9. At the fourth station, the lower die base 2 has a first flanging lower blade 10 for folding the outer edge of the left and right workpieces. The upper floating pressure seat 3 has a first flanging upper blade 11.
[0030] The lower die holder 2 has a boss initial punch forming block 12 at the fifth station, and the upper die holder 1 has a matching boss initial punch forming block 13. The floating pressure plate 3 has a clearance hole to avoid the boss initial punch forming block 13; the sixth station is empty; the lower die holder 2 has a boss second punch forming block 14 at the seventh station, and the upper die holder 1 has a matching boss second punch forming block 15. The floating pressure plate 3 has a clearance hole to avoid the boss second punch forming block 15; the eighth station is empty.
[0031] The lower die base 2 has a first lower shaping block 1716 at the ninth station, and a wedge drive block is provided on the outside of the first lower shaping block on the lower die base 2; the upper die base 1 has a first upper shaping block 18 that matches it, and a movable wedge seat 19 that matches the wedge drive block is provided on the outside of the first upper shaping block 18 on the upper die base 1. The movable wedge seat 19 has a flange block 20 that bends the side of the workpiece so that its top surface is parallel to the horizontal plane; the floating pressure base 3 has a clearance hole for avoiding the first upper shaping block 18 and a clearance slot for avoiding the movable wedge seat 19; the tenth station is empty.
[0032] The lower die base 2 is provided with two pairs of top punching die buttons 21 at the eleventh station, which are respectively punched to form a pair of through holes on the top surface of the left and right workpieces; the upper die base 1 is provided with matching top punching punches 22; the upper floating pressure base 3 is provided with avoidance holes to avoid the top punching punches 22; the upper floating pressure base 3 is provided with a reinforcing plate 23 at the eleventh station, and the reinforcing plate 23 is provided with two pairs of avoidance holes to avoid the top punching punches 22.
[0033] The lower die base 2 is provided with a blanking module 24 at the twelfth station. The blanking module 24 is provided with a blanking groove 25 for punching the excess material between the left and right parts. The upper floating pressure base 3 is provided with an upper pressure module 26 that cooperates to press the top surface of the workpiece. The upper die base 1 is provided with an upper blanking blade 27 that cooperates with the blanking groove 25 and passes through the upper pressure module 26.
[0034] The upper mold base 1 is provided with several mold-closing guide pillars 28, and the upper floating pressure base 3 is provided with several guide holes for each mold-closing guide pillar 28 to pass through. The lower mold base 2 is provided with several mold-closing guide seats 29 that cooperate with each mold-closing guide pillar 28. A pair of limiting guide plates 30 are provided on the upper mold base 1 at the sixth station, and a guide groove that cooperates with the limiting guide plates 30 is provided on each side of the upper floating pressure base 3. (The sixth station on the lower mold base 2 is empty, and there is a space on the lower mold base 2 to accommodate the limiting guide plates 30.)
[0035] The lower mold base 2 is provided with a pair of inverted L-shaped plate limiting members 31 at the first and second working positions, respectively, to restrict the side position of the plate; the upper floating pressure base 3 is provided with clearance holes to avoid the plate limiting members 31. The lower mold base 2 is provided with a pair of inverted L-shaped side limiting members 32 at the sixth, eighth, and eleventh working positions, to restrict the side position of the workpiece; the upper floating pressure base 3 is provided with clearance holes to avoid the side limiting members 32.
[0036] During processing, the upper die holder 1 uses equipment pressure to press down. First, the pressure plate presses down on the material strip, and then the upper die components move down. When passing the lower die working components, the product punching work is completed simultaneously. When the equipment reaches the set parameters, it returns to complete the product stamping work.
[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.
Claims
1. A stamping die for a left and right hinge bracket and a spring support, comprising an upper die base and a lower die base, wherein a floating pressure seat is provided on the upper die base via several nitrogen springs; The lower die base has twelve processing stations. At the first station, the lower die base has a pair of punching die buttons for punching feeding and positioning holes. The upper die base has matching punching punches. At the middle of the second station, the lower die base has a pair of middle cutting seats for punching the connecting part between the left and right workpieces and the excess material at the outer end of the narrow part of the left and right workpieces. The upper die base has a pair of matching upper cutting blocks. The floating pressure seat has clearance holes to avoid the upper cutting blocks. At the third station, the lower die base has outer cutting lower blades for punching the excess material on the outer side of the left and right workpieces respectively. The upper die base has matching outer cutting upper blades. The floating pressure seat has clearance holes to avoid the outer cutting upper blades. Its features are: The lower die base has a first flanging lower cutting block at the fourth station, which folds the outer edges of the workpieces on the left and right sides; the upper floating pressure base has a first flanging upper cutting block. The lower die base has a boss initial punching lower forming block at the fifth station; the upper die base has a matching boss initial punching upper forming block; the floating pressure base has a clearance hole to avoid the boss initial punching upper forming block. The sixth station is empty. The lower die base has a boss second punching lower forming block at the seventh station; the upper die base has a matching boss second punching upper forming block; the floating pressure base has a clearance hole to avoid the boss second punching upper forming block. The eighth station is empty. The lower die base has a first lower forming block at the ninth station, and a wedge drive block is provided on the outside of the first lower forming block; the upper die base has a matching first upper forming block, and a movable wedge seat that matches the wedge drive block is provided on the outside of the first upper forming block. The movable wedge seat has a flange block that bends the side of the workpiece so that its top surface is parallel to the horizontal plane; the floating pressure plate has a clearance hole for avoiding the first upper forming block and a clearance slot for avoiding the movable wedge seat; the tenth station is empty; The lower die base has two pairs of top punching die buttons at the eleventh station, which are used to punch a pair of through holes on the top surface of the left and right workpieces respectively; the upper die base has matching top punching punches; the upper floating pressure plate has clearance holes to avoid the top punching punches. The lower die base is equipped with a blanking module at the twelfth station. The blanking module has a blanking groove for punching the excess material between the left and right parts. The upper floating pressure base is equipped with an upper pressure module that cooperates to press the top surface of the workpiece. The upper die base is equipped with an upper blanking blade block that cooperates with the blanking groove and passes through the upper pressure module.
2. The stamping die for a left and right hinge bracket and spring support as described in claim 1, characterized in that: A reinforcing plate is provided at the eleventh station on the floating pressure base, and the reinforcing plate is provided with two pairs of avoidance holes to avoid the top punch.
3. The stamping die for a left and right hinge bracket and spring support as described in claim 1, characterized in that: The upper mold base is provided with a number of mold closing guide pillars, the upper floating pressure base is provided with a number of guide holes for each mold closing guide pillar to pass through, and the lower mold base is provided with a number of mold closing guide seats that cooperate with each mold closing guide pillar.
4. The stamping die for a left and right hinge bracket and spring support as described in claim 1, characterized in that: The upper mold base is provided with a pair of limiting guide plates at the sixth station, and the upper floating pressure base is provided with a guide groove on each side that cooperates with the limiting guide plates.
5. The stamping die for a left and right hinge bracket and spring support as described in claim 1, characterized in that: The lower mold base is provided with a pair of inverted L-shaped side limiters at the sixth, eighth and eleventh stations to restrict the position of the workpiece side; the upper floating pressure base is provided with avoidance holes to avoid the side limiters.
6. The stamping die for a left and right hinge bracket and spring support as described in claim 1, characterized in that: The lower mold base is provided with a pair of inverted L-shaped plate limiting members at the first and second work stations, respectively, to restrict the side position of the plate; the upper floating pressure plate base is provided with avoidance holes to avoid the plate limiting members.