Stamping structure of high-quality lead frame die

Abstract

The utility model relates to the technical field of lead frame die stamping, and discloses a high-quality lead frame die stamping structure which comprises a workbench and a connecting seat, a side connecting plate is additionally arranged at the top of the connecting seat, and a clamping plate is connected to the inner side face of the side connecting plate. A rotating gear is additionally arranged in the center of an inner cavity of the driving motor, the rotating gear is coaxially connected with the driving motor, and the front face and the back face of the rotating gear are meshed with tooth block plates; the top bottom of the limiting plate is tightly attached to the top bottom of the inner cavity of the workbench, and the top bottom of the tooth block plate is connected with the corresponding connecting base. According to the high-quality lead frame die stamping structure, the driving motor drives the rotating gear to rotate in the inner cavity of the workbench and drives the two sets of tooth block plates, the connecting base, the side connecting plate and the clamping plate to move oppositely, the lower die is fixed to the center of the top of the workbench, and by means of the mode, the influence of vibration on the connecting structure during stamping can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame die stamping, in particular to a high-quality lead frame die stamping structure. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. Lead frame molds are special molds used to produce lead frames, usually made of metal materials. The design and manufacturing requirements of this mold are very precise. Stamping is an important part of the lead frame production process. Through stamping equipment, metal materials can be processed into the required geometric shape and size.

[0003] The common high-quality lead frame mold stamping structure is usually composed of a main structure, a forming part, a stamping mechanism, and a guide and positioning device. The upper mold is connected to the stamping mechanism and lowered along the guide and positioning device to stamp the blank inside the lower mold. This is a common high-quality lead frame mold stamping structure and usage method. The traditional high-quality lead frame mold stamping structure has a poor clamping effect on the lower mold during stamping, which causes the lower mold to offset when being stamped, reduces the qualified rate of the internal blank, and reduces the practicality of the mold stamping structure. Some high-quality lead frame mold stamping structures use a rotating threaded rod to drive the clamping plate to move on the top of the workbench and connect it to the lower mold, thereby fixing the lower mold on the workbench. However, this method will cause the mold to vibrate when the mold is stamping, and the threaded connection structure between the threaded rod and the workbench will cause the threaded connection structure to loosen, break, and wear more severely. The stability of the connection between the lower mold and the workbench cannot be guaranteed, and the stamping process may fail. Therefore, a high-quality lead frame mold stamping structure is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a high-quality lead frame die stamping structure to solve the above-mentioned technical problem that the stability of the connection between the lower die and the workbench cannot be guaranteed.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-quality lead frame die stamping structure, comprising:

[0008] A workbench, and connecting seats arranged on both sides of the top of the workbench, wherein the top of the connecting seats is additionally provided with side connecting plates, and the inner side surfaces of the side connecting plates are connected with clamping plates;

[0009] The driving motor is arranged at the bottom center of the workbench, and a rotating gear is added to the inner center of the workbench and is coaxially connected with the driving motor, and the front and back sides of the rotating gear are meshed with gear blocks;

[0010] The limit plates are arranged on both sides of the surface of the tooth block plate, and the top and bottom of the limit plates are tightly fitted with the top and bottom of the inner cavity of the workbench, and the top and bottom of the tooth block plate are connected to the corresponding connecting seat. The driving motor drives the rotating gear to rotate in the inner cavity of the workbench, and drives the two groups of tooth block plates, the connecting seat, the side connecting plate and the clamping plate to move towards each other, and fix the lower mold at the top center of the workbench. On the one hand, the method of fixing the lower mold with the clamping plate driven by the rotating gear and the tooth block plate can reduce the impact of vibration during stamping and avoid the separation of the clamping plate and the lower mold; on the other hand, it can be operated automatically, which is convenient for fixing and separating the lower mold, and at the same time, the tooth block plate is translated by the limit plate to avoid offset.

[0011] Preferably, the front and rear ends of the inner side surfaces of the side connecting plates are both provided with limit blocks, and the inner side surfaces of the limit blocks are both provided with connecting rods at the centers thereof and connected to the clamping plates. The side connecting plates are connected to the clamping plates via the limit blocks and the connecting rods.

[0012] Preferably, the front and rear ends of the top of the side connecting plate are both provided with rotating plates, and arc springs are both provided on both sides of the top of the rotating plate, and connecting columns are connected between the arc springs on both sides, and the connecting columns are connected to the top of the side connecting plate. The side connecting plate is located on the top of the limit block, and the two are tightly fitted. The rotating plate can be pushed to one side and the corresponding arc spring can be squeezed. On the one hand, it is convenient to separate the side connecting plate from the limit block, and the clamping plate can be replaced according to the lower mold; on the other hand, the rotating plate is at the top of the side connecting plate, and is ensured to be tightly fitted with the limit block under the action of the arc spring, ensuring that the clamping plate is tightly connected due to the side connecting plates.

[0013] Preferably, the inner side of the clamp is evenly provided with a conical head, and the center of the outer side of the conical head is installed with a guide rod, and the surface of the guide rod is sleeved with a reset spring. When the clamp approaches the surface of the lower die, the conical head first fits with the surface of the lower die, and part of the conical head drives the guide rod to move to squeeze the reset spring, and the other part of the conical head fits with the front and back sides of the lower die. On the one hand, the four sides of the lower die can be fixed and the stability during stamping can be ensured; on the other hand, it can be suitable for lower dies of different sizes within a certain range.

[0014] Preferably, the outer end of the guide rod extends outward through the outer wall of the clamping plate and is connected to a limiting circular plate, and the inner end of the guide rod is connected to the conical head. The limiting circular plate can prevent the guide rod from being separated from the clamping plate.

[0015] Preferably, a top plate is installed horizontally above the top of the workbench, and a hydraulic cylinder is added to the top center of the top plate, and a connecting block is added to the bottom center of the top plate and connected to the telescopic end of the hydraulic cylinder, and guide columns are installed on both sides of the top of the connecting block and extend upward through the bottom of the top plate. The hydraulic cylinder drives the connecting block to move up and down on the top plate, and the guide column is connected to the connecting block, and the guide column moves in the same direction as the connecting block.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a high-quality lead frame die stamping structure, which has the following beneficial effects:

[0018] The high-quality lead frame die stamping structure drives the rotating gear to rotate in the inner cavity of the workbench through a driving motor, and drives two sets of tooth block plates, connecting seats, side connecting plates and clamping plates to move toward each other, thereby fixing the lower die at the top center of the workbench. In this way, on the one hand, the rotating gear and the tooth block plate drive the clamping plate to fix the lower die, which can reduce the impact of vibration during stamping and avoid separation of the clamping plate and the lower die; on the other hand, it can be operated automatically to facilitate the fixing and separation operations of the lower die, and at the same time, the tooth block plate can be translated through the limit plate to avoid offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the workbench of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the side connecting plate and the clamping plate of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the bottom portion of the top plate of the utility model in section.

[0025] In the figure: 1. workbench; 2. drive motor; 3. rotating gear; 4. tooth block plate; 5. limit plate; 6. connecting seat; 7. side connecting plate; 8. clamping plate; 9. limit block; 10. connecting rod; 11. rotating plate; 12. arc spring; 13. connecting column; 14. conical head; 15. guide rod; 16. reset spring; 17. top plate; 18. hydraulic cylinder; 19. connecting block; 20. guide column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a technical solution, a high-quality lead frame die stamping structure, including: Figure 1 , a workbench 1, and connecting seats 6 arranged on both sides of the top of the workbench 1, and a side connecting plate 7 is added to the top of the connecting seat 6, and a clamping plate 8 is connected to the inner side of the side connecting plate 7;

[0028] See also Figure 2 , a driving motor 2 is arranged at the bottom center of the workbench 1, and a rotating gear 3 is provided at the inner center of the workbench 1 and is coaxially connected with the driving motor 2, and a gear plate 4 is meshed on both the front and back sides of the rotating gear 3;

[0029] The limit plate 5 is arranged on both sides of the surface of the tooth block plate 4, and the top and bottom of the limit plate 5 are tightly fitted with the top and bottom of the inner cavity of the workbench 1, and the top and bottom of the tooth block plate 4 are connected to the corresponding connecting seat 6. The rotating gear 3 is driven by the driving motor 2 to rotate in the inner cavity of the workbench 1, and the two groups of tooth block plates 4, the connecting seat 6, the side connecting plate 7 and the clamping plate 8 are driven to move toward each other, and the lower mold is fixed at the top center of the workbench 1. On the one hand, the method of fixing the lower mold by the clamping plate 8 driven by the rotating gear 3 and the tooth block plate 4 can reduce the impact of vibration during stamping and avoid the separation of the clamping plate 8 from the lower mold; on the other hand, it can be operated automatically, which is convenient for fixing and separating the lower mold. At the same time, the tooth block plate 4 is translated by the limit plate 5 to avoid offset.

[0030] See also Figure 3 The front and rear ends of the inner side of the side connecting plate 7 are both inserted with limit blocks 9, and the inner side center of the limit blocks 9 is installed with connecting rods 10, which are connected to the clamping plate 8. The side connecting plate 7 is connected to the clamping plate 8 through the limit blocks 9 and the connecting rods 10.

[0031] See also Figure 4 , the front and rear ends of the top of the side connecting plate 7 are both provided with a rotating plate 11, and arc springs 12 are both provided on both sides of the top of the rotating plate 11, and a connecting column 13 is connected between the arc springs 12 on both sides, and the connecting column 13 is connected to the top of the side connecting plate 7. The side connecting plate 7 is located on the top of the limit block 9, and the two are tightly fitted. The rotating plate 11 can be pushed to one side and the corresponding arc spring 12 can be squeezed. On the one hand, it is convenient to separate the side connecting plate 7 from the limit block 9, and the clamping plate 8 can be replaced according to the lower mold; on the other hand, the rotating plate 11 is at the top of the side connecting plate 7, and is ensured to be tightly fitted with the limit block 9 under the action of the arc spring 12, ensuring that the clamping plate 8 is tightly connected due to the side connecting plate 7.

[0032] See also Figure 5 , conical heads 14 are evenly added to the inner side of the splint 8, and guide rods 15 are installed at the center of the outer side of the conical heads 14, and reset springs 16 are sleeved on the surface of the guide rods 15. When the splint 8 approaches the surface of the lower die, the conical heads 14 first fit with the surface of the lower die, and part of the conical heads 14 drive the guide rods 15 to move and squeeze the reset springs 16, while the other part of the conical heads 14 fit with the front and back sides of the lower die. On the one hand, the four sides of the lower die can be fixed and the stability during stamping can be ensured; on the other hand, it can be suitable for lower dies of different sizes within a certain range. The outer end of the guide rod 15 extends outward through the outer wall of the splint 8 and is connected to a limiting circular plate, and the inner end of the guide rod 15 is connected to the conical head 14. The limiting circular plate can prevent the guide rod 15 from separating from the splint 8.

[0033] See also Figure 6 A top plate 17 is installed horizontally just above the top of the workbench 1, and a hydraulic cylinder 18 is added to the top center of the top plate 17, and a connecting block 19 is added to the bottom center of the top plate 17, and is connected to the telescopic end of the hydraulic cylinder 18, and guide columns 20 are installed on both sides of the top of the connecting block 19, and extend upward through the bottom of the top plate 17. The hydraulic cylinder 18 drives the connecting block 19 to move up and down on the top plate 17, and the guide column 20 is connected to the connecting block 19, and the guide column 20 moves in the same direction as the connecting block 19.

[0034] This solution: The driving motor 2 drives the rotating gear 3 to rotate in the inner cavity of the workbench 1, and drives the two sets of gear blocks 4, the connecting seat 6, the side connecting plate 7 and the clamping plate 8 to move toward each other, and fixes the lower mold at the top center of the workbench 1. The side connecting plate 7 is located on the top of the limit block 9, and the two fit tightly together, which can push the rotating plate 11 to one side and squeeze the corresponding arc spring 12. When the clamping plate 8 approaches the surface of the lower mold, the conical head 14 first fits with the surface of the lower mold, and part of the conical head 14 drives the guide rod 15 to move, squeezing the reset spring 16, and the other part of the conical head 14 fits with both sides of the front and back of the lower mold.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-quality lead frame die stamping structure, characterized in that: include: A workbench (1), and connecting seats (6) arranged on both sides of the top of the workbench (1), wherein a side connecting plate (7) is added to the top of the connecting seat (6), and a clamping plate (8) is connected to the inner side of the side connecting plate (7); The driving motor (2) is arranged at the bottom center of the workbench (1), and a rotating gear (3) is provided at the inner center of the workbench (1) and is coaxially connected to the driving motor (2), and the front and back sides of the rotating gear (3) are meshed with gear blocks (4); The limit plates (5) are arranged on both sides of the surface of the tooth block plate (4), and the top and bottom parts of the limit plates (5) are tightly fitted with the top and bottom parts of the inner cavity of the workbench (1), and the top and bottom parts of the tooth block plate (4) are connected to the corresponding connecting seat (6).

2. A high-quality lead frame die stamping structure according to claim 1, characterized in that: Limit blocks (9) are inserted at the front and rear ends of the inner side surfaces of the side connecting plates (7), and connecting rods (10) are installed at the centers of the inner side surfaces of the limit blocks (9) and are connected to the clamping plates (8).

3. The high-quality lead frame die stamping structure according to claim 2, characterized in that: The front and rear ends of the top of the side connecting plate (7) are both provided with a rotating plate (11), and both sides of the top of the rotating plate (11) are both provided with arc springs (12), and a connecting column (13) is connected between the arc springs (12) on both sides, and the connecting column (13) is connected to the top of the side connecting plate (7).

4. The high-quality lead frame die stamping structure according to claim 1, characterized in that: The inner side of the clamping plate (8) is evenly provided with a conical head (14), and the center of the outer side of the conical head (14) is installed with a guide rod (15), and the surface of the guide rod (15) is sleeved with a return spring (16).

5. The high-quality lead frame die stamping structure according to claim 4, characterized in that: The outer end of the guide rod (15) penetrates the outer wall of the clamping plate (8) and extends outwards and is connected to the limiting circular plate, and the inner end of the guide rod (15) is connected to the conical head (14).

6. The high-quality lead frame die stamping structure according to claim 1, characterized in that: A top plate (17) is installed horizontally above the top of the workbench (1), and a hydraulic cylinder (18) is added at the center of the top of the top plate (17). A connecting block (19) is added at the center of the bottom of the top plate (17) and is connected to the telescopic end of the hydraulic cylinder (18). Guide columns (20) are installed on both sides of the top of the connecting block (19) and extend upward through the bottom of the top plate (17).

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