Hidden hardware die blanking structure
Through the hidden hardware mold punching structure, the punch assembly and bevel hook groove structure are driven by nitrogen springs, efficient and accurate stamping is achieved, which solves the problem of insufficient stamping accuracy, reduces mold cost and defect rate, and improves product quality.
Patent Information
- Application Number
- CN202422259097.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-14
AI Technical Summary
When the prior art stamps reference holes on the arc surface of a stamping product, the accuracy is difficult to meet the requirements, and the error is large, resulting in high product defect rate.
The hidden hardware mold punching structure is adopted, including an upper die seat, punch assembly, upper die drive block, upper die press plate and lower die sleeve fixing seat. The punch assembly is driven by a nitrogen spring to achieve efficient stamping, combining the inclined surface and hook groove structure to ensure accurate alignment and reduce defect rate.
It improves product accuracy, reduces mold cost and defect rate, makes production more stable and product accuracy higher.
Smart Images
Figure CN223056517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stamping dies, in particular to a hidden hardware die blanking structure. Background Art
[0002] As shown in the Figure 10 accompanying drawings, when using a stamping die to punch a reference hole 72 on the arc surface 71 of a product 7, the reference hole of the product is on the arc surface of the product, and the precision requirement for stamping is high. The normal direct punching error is relatively large and cannot meet the product requirements. For this reason, we have proposed a hidden hardware die blanking structure applicable to the product 7. Summary of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a hidden hardware die blanking structure, which solves the problems raised in the above background art.
[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A hidden hardware die blanking structure includes an upper die base, and a first reserved hole is opened inside the upper die base. It further includes:
[0005] A punch assembly, which is fixed inside the first reserved hole, and the built-in punch can punch a reference hole on the product surface;
[0006] An upper die driving block, which is located above the punch assembly and can drive the upper die base and the punch assembly to lift and lower synchronously;
[0007] An upper die pressure plate, which is fixed at the bottom end of the upper die base, and the punch of the punch assembly can pass through the upper die pressure plate;
[0008] A lower die cutting edge concave die sleeve fixing seat, which is located below the upper die pressure plate, and the product is located between the upper die pressure plate and the lower die cutting edge concave die sleeve fixing seat.
[0009] Furthermore, the bottom end of the upper die driving block is set as an inclined surface, and hook grooves are opened on both sides of the upper die driving block. The hook grooves are of an "L" - shaped structure.
[0010] Furthermore, the punch assembly includes a punch guide seat fixed inside the first reserved hole. A second reserved hole is opened inside the punch guide seat. A punch guide block is fixed inside the second reserved hole. The punch guide block is inclined, and the inclination angle is adapted to the inclination angle of the inclined surface. A punch mother - son punch fixing backing plate is installed at the bottom end of the punch guide block. The bottom end of the punch mother - son punch fixing backing plate is connected with a punch mother - son punch. The bottom end of the punch mother - son punch fixing backing plate is also connected with a punch mother - son punch fixing plate. The punch mother - son punch passes through the inside of the punch mother - son punch fixing plate and extends below the punch guide seat.
[0011] Furthermore, several nitrogen springs are connected to the bottom end of the punch and die fixing backing plate. The telescopic ends of the nitrogen springs pass through the inside of the punch and die fixing plate and extend below the punch guide seat.
[0012] Furthermore, wear-resistant plates are installed on the side and top of the punch guide block. Reset hooks are installed on both sides of the punch guide block, and the top ends of the reset hooks are hung inside the hook grooves.
[0013] Furthermore, a third reserved hole and several reserved grooves are provided inside the punch and die fixing plate and the upper die pressure plate. The punching end of the punch and die passes through the inside of the two third reserved holes in sequence and extends below the upper die pressure plate. The telescopic end of the nitrogen spring abuts against the inside of the reserved groove.
[0014] Furthermore, a lower die cutting edge concave die sleeve fixing seat is embedded at the top, and the lower die cutting edge concave die sleeve corresponds to the punch and die.
[0015] Furthermore, several alignment parts are provided at the bottom end of the upper die base. The alignment parts include an upper die alignment block installed at the bottom end of the upper die base and a lower die alignment block installed at the top end of the lower die base. A alignment cone is connected to the upper part of the lower die alignment block, and an alignment groove is provided at the bottom end of the upper die alignment block. The alignment cone is adapted to the alignment groove.
[0016] The utility model provides a blanking structure for a concealed hardware mold. Compared with the prior art, the following beneficial effects are achieved:
[0017] This concealed hardware mold blanking structure uses a simple mold structure for efficient production, improves product precision, greatly reduces mold costs, and significantly reduces the defective rate of products during mold production, making production more stable and product precision higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a disassembled schematic diagram of the utility model;
[0019] Figure 2 is a structural schematic diagram of the upper die driving block in the utility model;
[0020] Figure 3 is a disassembled schematic diagram of the punch assembly in the utility model;
[0021] Figure 4 is a structural schematic diagram of the upper die pressure plate in the utility model;
[0022] Figure 5 is a structural schematic diagram of the lower die cutting edge concave die sleeve fixing seat in the utility model;
[0023] Figure 6 Structural schematic diagram of the alignment part in the present utility model;
[0024] Figure 7 Assembly schematic diagram of the present utility model;
[0025] Figure 8 Sectional view of the present utility model in the mold-closing state;
[0026] Figure 9 Sectional view of the present utility model in the mold-opening state;
[0027] Figure 10 Structural schematic diagram of the product of the present utility model.
[0028] In the figure: 1. Upper die base; 11. First reserved hole; 2. Upper die driving block; 21. Inclined plane; 22. Hook groove; 3. Punch assembly; 31. Punch guide seat; 32. Second reserved hole; 33. Punch guide block; 34. Fixed backing plate for punch and sub-punch; 35. Punch and sub-punch; 36. Nitrogen spring; 37. Fixed plate for punch and sub-punch; 38. Third reserved hole; 39. Reserved groove; 310. Wear-resistant plate; 311. Reset hook; 4. Upper die pressure plate; 5. Fixed seat for lower die cutting edge concave die sleeve; 51. Lower die cutting edge concave die sleeve; 6. Alignment part; 61. Lower die alignment block; 62. Upper die alignment block; 63. Alignment cone; 64. Alignment groove; 7. Product; 71. Arc surface; 72. Reference hole. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Please refer to Figures 1-9, the present utility model provides a technical solution: a concealed hardware mold blanking structure, which consists of an upper die base 1, an upper die driving block 2, a punch assembly 3, an upper die pressure plate 4, a lower die cutting edge concave die sleeve fixing seat 5, and several alignment parts 6. Among them, a first reserved hole 11 is provided inside the upper die base 1, and the punch assembly 3 is fixed inside the first reserved hole 11. The built-in punch can punch a reference hole 72 on the surface of the product 7. The upper die driving block 2 is located above the punch assembly 3. The upper die driving block 2 is connected to the driving end of the punching machine and can drive the upper die base 1 and the punch assembly 3 to lift and lower synchronously. The upper die pressure plate 4 is fixed to the bottom end of the upper die base 1. The punch of the punch assembly 3 can pass through the upper die pressure plate 4. The lower die cutting edge concave die sleeve fixing seat 5 is located below the upper die pressure plate 4, and the product 7 is located between the upper die pressure plate 4 and the lower die cutting edge concave die sleeve fixing seat 5;
[0031] The bottom end of the upper die driving block 2 is set as an inclined surface, the punch guiding block 33 is inclined, and the inclination angle is adapted to the inclination angle of the inclined surface 21. Hook grooves 22 are provided on both sides of the upper die driving block 2. The hook grooves 22 are of an "L" - shaped structure. Reset hooks 311 are installed on both sides of the punch guiding block 33, and the top ends of the reset hooks 311 are hung inside the hook grooves 22;
[0032] The punch assembly 3 includes a punch guiding seat 31 fixed inside the first reserved hole 11. A second reserved hole 32 is provided inside the punch guiding seat 31. A punch guiding block 33 is fixed inside the second reserved hole 32. A punch mother - son punch fixing backing plate 34 is installed at the bottom end of the punch guiding block 33. The bottom end of the punch mother - son punch fixing backing plate 34 is connected to a punch mother - son punch 35. The bottom end of the punch mother - son punch fixing backing plate 34 is also connected to a punch mother - son punch fixing plate 37. The punch mother - son punch 35 passes through the inside of the punch mother - son punch fixing plate 37 and extends below the punch guiding seat 31. The bottom end of the punch mother - son punch fixing backing plate 34 is also connected to several nitrogen springs 36 (the punch mother - son punch 35 and several nitrogen springs 36 are both hidden between the punch mother - son punch fixing plate 37 and the punch guiding seat 31). The telescopic ends of the nitrogen springs 36 pass through the inside of the punch mother - son punch fixing plate 37 and extend below the punch guiding seat 31. Wear - resistant plates 310 are installed on the side and top of the punch guiding block 33. Reserved holes 38 and several reserved grooves 39 are provided inside the punch mother - son punch fixing plate 37 and the upper die pressure plate 4. The punching end of the punch mother - son punch 35 sequentially passes through the inside of the two reserved holes 38 and extends below the upper die pressure plate 4. The telescopic ends of the nitrogen springs 36 abut against the inside of the reserved grooves 39;
[0033] An inner-embedded lower die cutting female die sleeve fixing seat 5 is installed at the top of the lower die cutting female die sleeve 51. The lower die cutting female die sleeve 51 corresponds to the punching mother and son punch 35. A plurality of alignment parts 6 are arranged at the bottom end of the upper die base 1. The alignment part 6 includes an upper die alignment block 62 installed at the bottom end of the upper die base 1 and a lower die alignment block 61 installed at the top end of the lower die base. An alignment cone 63 is connected to the upper part of the lower die alignment block 61. An alignment groove 64 is formed at the bottom end of the upper die alignment block 62. The alignment cone 63 is adapted to the alignment groove 64.
[0034] During use, the mold completes one punching cycle every time it closes. When the mold is opened, the nitrogen spring 36 simultaneously pops up the punching mother and son punch 35, the punching mother and son punch fixing plate 37, the punching mother and son punch fixing backing plate 34, and the punch guide block 33. The product 7 is placed into the mold. The mold descends, and the upper die alignment block 62 aligns with the lower die alignment block 61. Continuing to descend, the upper die driving block 2 contacts the punch guide block 33, and the nitrogen spring 36 contracts. The punching mother and son punch 35, the punching mother and son punch fixing plate 37, the punching mother and son punch fixing backing plate 34, and the punch guide block 33 descend. The mold closes, and a reference hole 72 is punched on the arc surface 71 of the product 7. Subsequently, the mold rises and opens, and the product is taken out. All actions are completed. By using a simple mold structure, high-efficiency production is achieved, the product precision is improved, the mold cost is greatly reduced, and the defective rate of products in mold production is significantly reduced, making the production more stable and the product precision higher.
Claims
1. A concealed hardware die blanking structure, including an upper die base (1), wherein a first reserved hole (11) is provided inside the upper die base (1), characterized in that, It further includes: A punch assembly (3), the punch assembly (3) is fixed inside the first reserved hole (11), and the built-in punch can punch a reference hole on the surface of the product; An upper die driving block (2), the upper die driving block (2) is located above the punch assembly (3), and can drive the upper die base (1) and the punch assembly (3) to lift and lower synchronously; An upper die pressure plate (4), the upper die pressure plate (4) is fixed to the bottom end of the upper die base (1), and the punch of the punch assembly (3) can pass through the upper die pressure plate (4); A lower die cutting edge female die sleeve fixing seat (5), the lower die cutting edge female die sleeve fixing seat (5) is located below the upper die pressure plate (4), and the product is located between the upper die pressure plate (4) and the lower die cutting edge female die sleeve fixing seat (5).
2. The blanking structure of a hidden hardware mold according to claim 1, characterized in that The bottom end of the upper die driving block (2) is provided with an inclined surface, and hook grooves (22) are opened on both sides of the upper die driving block (2), and the hook grooves (22) are of an "L" - shaped structure.
3. A blanking structure of a hidden hardware mold according to claim 1, characterized in that, The punch assembly (3) includes a punch guide seat (31) fixed inside the first reserved hole (11), a second reserved hole (32) is opened inside the punch guide seat (31), a punch guide block (33) is fixed inside the second reserved hole (32), the punch guide block (33) is inclined, and the inclination angle is adapted to the inclination angle of the inclined surface (21). A punch and sub - punch fixing backing plate (34) is installed at the bottom end of the punch guide block (33), a punch and sub - punch (35) is connected to the bottom end of the punch and sub - punch fixing backing plate (34), and a punch and sub - punch fixing plate (37) is also connected to the bottom end of the punch and sub - punch fixing backing plate (34). The punch and sub - punch (35) passes through the inside of the punch and sub - punch fixing plate (37) and extends below the punch guide seat (31).
4. A concealed hardware die blanking structure according to claim 3, characterized in that, A plurality of nitrogen springs (36) are also connected to the bottom end of the punch and sub - punch fixing backing plate (34), and the telescopic ends of the nitrogen springs (36) pass through the inside of the punch and sub - punch fixing plate (37) and extend below the punch guide seat (31).
5. A concealed hardware die blanking structure according to claim 3, characterized in that, Wear - resistant plates (310) are installed on the side and top of the punch guide block (33), reset hooks (311) are installed on both sides of the punch guide block (33), and the top ends of the reset hooks (311) are hooked inside the hook grooves (22).
6. A hidden hardware die blanking structure according to claim 4, characterized in that, Reserved holes three (38) and a plurality of reserved grooves (39) are opened inside the punch and sub - punch fixing plate (37) and the upper die pressure plate (4). The punching end of the punch and sub - punch (35) sequentially passes through the inside of the two reserved holes three (38) and extends below the upper die pressure plate (4), and the telescopic ends of the nitrogen springs (36) abut against the inside of the reserved grooves (39).
7. A blanking structure of a concealed hardware mold according to claim 1, characterized in that, A lower die cutting edge female die sleeve (51) is embedded and installed at the top of the lower die cutting edge female die sleeve fixing seat (5), and the lower die cutting edge female die sleeve (51) corresponds to the punch and sub - punch (35).
8. A concealed hardware die blanking structure according to claim 1, characterized in that, A plurality of alignment members (6) are provided at the bottom end of the upper die holder (1). The alignment member (6) includes an upper die alignment block (62) installed at the bottom end of the upper die holder (1) and a lower die alignment block (61) installed at the top end of the lower die holder. An alignment cone (63) is connected to the upper part of the lower die alignment block (61). An alignment groove (64) is formed at the bottom end of the upper die alignment block (62). The alignment cone (63) is adapted to the alignment groove (64).