Precise stamping die convenient to exhaust

Abstract

The precise stamping die comprises a lower die, a forming cavity formed in the lower die, an upper die arranged above the lower die and a base fixedly connected to the bottom of the lower die, and a material ejecting assembly is arranged between the top of the base and the bottom of the lower die. The material ejecting assembly comprises four ejecting rods evenly connected to the interior of the lower die in a sliding mode, a first moving plate fixedly connected to the bottoms of the four ejecting rods, a second moving plate movably connected to the bottom of the first moving plate and four elastic assemblies evenly arranged between the bottom of the first moving plate and the top of the second moving plate. And one side of the lower die is fixedly connected with a second fixing plate, the interior of the second fixing plate is rotationally connected with a rotating shaft, and the top of the rotating shaft is fixedly connected with a movable plate capable of swinging above the forming cavity. By means of the structure, blanking work of workpieces after stamping is completed is simpler and more efficient, the problem that blanking needs to be operated manually between the lower die and the upper die is avoided, safety accidents are reduced, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a precision stamping die which is convenient for exhausting. Background Art

[0002] Precision stamping dies are special process equipment used to process materials into parts during cold stamping. They are mainly based on the plastic deformation characteristics of metal materials. The metal material is subjected to the pressure applied by the die, thereby undergoing plastic deformation to obtain the desired shape and size.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed an aluminum stamping die with an exhaust structure, and its application number is 202123053372.5. The above patent mainly includes: a stamping chamber, an air press is provided on the internal top surface of the stamping chamber, and a pressure plate is fixedly connected to the bottom of the air press, and a limit rod is provided on the surface of the pressure plate; a placement groove is provided inside the stamping chamber, and a limit block is fixedly connected at both ends of the placement groove; and a limit sleeve is fixedly connected to the bottom side wall surface of the stamping chamber. Although the above-mentioned mold is lifted up by the support column through the pressure spring, the support column is lifted up and drives the sealing block to rise and disengage from the groove. When the sealing block is out of the groove, it holds the stamped parts and lifts them up, which is convenient for picking up the stamped parts, thereby effectively improving its work efficiency. However, the upper die simply ejects the stamped workpiece into the groove, and the workpiece still needs to be manually unloaded between the lower die and the upper die. This operation method not only makes the workpiece unloading efficiency low, but also requires the operator to frequently operate between the lower die and the upper die. Due to the high speed and high pressure characteristics of the die during the stamping process, it is easy to get pinched or other injuries. Therefore, those skilled in the art provide a precision stamping die that is easy to exhaust to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a precision stamping die which is convenient for exhausting. By arranging an ejection assembly to eject the workpiece and separate it from the forming cavity, the movable plate can be rotated under the action of the ejection assembly and the transmission assembly, so that the workpiece can be pushed to the side of the lower die to complete the unloading of the workpiece, making the unloading of the workpiece after the stamping is completed simpler and more efficient, and avoiding the problem of manual unloading operation between the lower die and the upper die, which is conducive to reducing the occurrence of safety accidents and has a good use effect.

[0005] To achieve the above purpose, a precision stamping die that is easy to exhaust is provided, comprising a lower die, a molding cavity arranged inside the lower die, an upper die arranged above the lower die, and a base fixedly connected to the bottom of the lower die, wherein a material ejection assembly is arranged between the top of the base and the bottom of the lower die;

[0006] The ejector assembly includes four ejector rods that are uniformly and slidably connected to the inside of the lower die, a first moving plate fixedly connected to the bottoms of the four ejector rods, a second moving plate movably connected to the bottom of the first moving plate, and four elastic components uniformly arranged between the bottom of the first moving plate and the top of the second moving plate;

[0007] One side of the lower die is fixedly connected with a second fixed plate. A rotating shaft is rotatably connected to the inside of the second fixed plate. The top of the rotating shaft is fixedly connected with a movable plate that can swing above the forming cavity. The bottom of the rotating shaft is connected to the second moving plate through a transmission component. When the second moving plate moves up and down, it drives the rotating shaft to rotate through the transmission component.

[0008] According to the described precision stamping die facilitating exhaust, the elastic component includes a connecting rod fixedly connected to the top of the second moving plate and four springs sleeved on the outside of the corresponding connecting rods. The tops of the four connecting rods all penetrate through the first moving plate and extend into the adjacent ejector rods. A power-driven push rod is fixedly connected between the middle of the top side of the base and the bottom of the second moving plate.

[0009] According to the described precision stamping die facilitating exhaust, the transmission component includes a rack fixedly connected to one side of the second moving plate, two first fixed plates fixedly connected to the bottom of the lower die, a connecting shaft rotatably connected to the inside of the two first fixed plates, a gear fixedly connected to one end of the connecting shaft and located above the rack, and two bevel gears in meshing connection. The two bevel gears are respectively fixedly connected to the other end of the connecting shaft and the bottom of the rotating shaft. When the second moving plate moves upward, it drives the rack to be in meshing connection with the gear.

[0010] According to the described precision stamping die facilitating exhaust, a plurality of ventilation grooves communicating with the forming cavity are formed through the top and inside of the lower die.

[0011] According to the described precision stamping die facilitating exhaust, the connecting rod is slidably connected to the inside of the adjacent ejector rod, and a matching chute is formed in the inside of the ejector rod.

[0012] According to the described precision stamping die facilitating exhaust, when the first moving plate is in contact with the bottom of the lower die, the tops of the ejector rods are flush with the surface of the top of the lower die.

[0013] The utility model has the following beneficial effects:

[0014] Compared with the prior art, for the precision stamping die facilitating exhaust, by setting up an ejecting assembly to eject the workpiece from the forming cavity, under the action of the ejecting assembly and the transmission assembly, the rotating operation of the movable plate can be realized, so as to push the workpiece to the side of the lower die to complete the blanking work of the workpiece, making the blanking work of the workpiece after stamping simpler and more efficient, and avoiding the problem of manual blanking operation between the lower die and the upper die, which is beneficial to reducing the occurrence of safety accidents and has good use effects.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 is the overall structural schematic diagram of a precision stamping die facilitating exhaust of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the first part of a precision stamping die facilitating exhaust of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the second part of a precision stamping die facilitating exhaust of the present utility model;

[0020] Figure 4 is the structural schematic diagram of the connection between the connecting rod and the ejector rod of a precision stamping die facilitating exhaust of the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Lower die; 2. Upper die; 3. Base; 4. Forming cavity; 5. First moving plate; 6. Ejector rod; 7. Second moving plate; 8. Connecting rod; 9. Spring; 10. Electric push rod; 11. Rack; 12. First fixing plate; 13. Gear; 14. Bevel gear; 15. Second fixing plate; 16. Venting groove; 17. Rotating shaft; 18. Movable plate; 19. Coupling shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0024] Refer to Figure 1 、 Figure 2 、 Figure 3 andFigure 4 In an embodiment of the present utility model, a precision stamping die facilitating exhaust includes a lower die 1, a forming cavity 4 arranged inside the lower die 1, an upper die 2 arranged above the lower die 1, and a base 3 fixedly connected to the bottom of the lower die 1. A blanking component is arranged between the top of the base 3 and the bottom of the lower die 1; the blanking component includes four ejector rods 6 slidably connected to the inside of the lower die 1 evenly, a first moving plate 5 fixedly connected to the bottoms of the four ejector rods 6, a second moving plate 7 movably connected to the bottom of the first moving plate 5, and four elastic components arranged between the bottom of the first moving plate 5 and the top of the second moving plate 7 evenly; a second fixing plate 15 is fixedly connected to one side of the lower die 1, a rotating shaft 17 is rotatably connected to the inside of the second fixing plate 15, a movable plate 18 capable of swinging above the forming cavity 4 is fixedly connected to the top of the rotating shaft 17, and the bottom of the rotating shaft 17 is connected to the second moving plate 7 through a transmission component. When the second moving plate 7 moves up and down, the rotating shaft 17 is driven to rotate through the transmission component.

[0025] After the workpiece completes the stamping work inside the forming cavity 4 through the cooperation of the lower die 1 and the upper die 2, the movably connected second moving plate 7 can move upward and synchronously drive the first moving plate 5 to move upward through the elastic components. While the first moving plate 5 moves upward, it drives the ejector rods 6 to move upward to better eject the workpiece out of the forming cavity 4. When the moving second moving plate 7 continues to move upward, the positioning of the first moving plate 5 and the movement of the second moving plate 7 can be realized under the action of the elastic components. When the second moving plate 7 continues to move upward, the rotating shaft 17 can be driven to rotate under the action of the transmission component. Thus, under the rotation action of the rotating shaft 17, the movable plate 18 can be driven to rotate to push the workpiece to the side of the lower die 1, and the blanking work of the workpiece can be completed, making the blanking work of the workpiece after stamping simpler and more efficient, and avoiding the problem of manual blanking operation between the lower die 1 and the upper die 2, which is beneficial to reducing the occurrence of safety accidents and has good use effects.

[0026] Refer to Figure 1 、 Figure 2 and Figure 4 The elastic components include connecting rods 8 fixedly connected to the top of the second moving plate 7 and four springs 9 sleeved outside the corresponding connecting rods 8. The tops of the four connecting rods 8 all penetrate through the first moving plate 5 and extend into the adjacent ejector rods 6. An electric push rod 10 is fixedly connected between the middle of the top side of the base 3 and the bottom of the second moving plate 7. The operation of the electric push rod 10 can drive the second moving plate 7 to move upward. The upward moving second moving plate 7 can synchronously drive the first moving plate 5 to move upward under the action of the springs 9. Thus, the upward moving first moving plate 5 can better drive the ejector rods 6 to move upward, and the separation operation of the workpiece from the forming cavity 4 can be completed. And when the electric push rod 10 continuously drives the second moving plate 7 to move upward, the normal movement operation of the second moving plate 7 can be realized under the action of the springs 9, so as to facilitate the subsequent cooperation with the transmission component to drive the rotating shaft 17 to rotate.

[0027] Referring to Figure 1 , Figure 2 and Figure 3 , the transmission assembly includes a rack 11 fixedly connected to one side of the second moving plate 7, two first fixing plates 12 fixedly connected to the bottom of the lower die 1, a connecting shaft 19 rotatably connected inside the two first fixing plates 12, a gear 13 fixedly connected to one end of the connecting shaft 19 and located above the rack 11, and two meshing bevel gears 14. The two bevel gears 14 are respectively fixedly connected to the other end of the connecting shaft 19 and the bottom of the rotating shaft 17. When the second moving plate 7 moves upward, it drives the rack 11 to be meshed with the gear 13. When the second moving plate 7 moves upward, it drives the rack 11 to move upward. The moving rack 11 is meshed with the gear 13, and under the movement of the rack 11, the rotation operation of the connecting shaft 19 can be achieved. The rotating connecting shaft 19 can drive the bevel gear 14 to rotate to realize the rotation of the rotating shaft 17.

[0028] Referring to Figure 1 , Figure 2 and Figure 3 , a plurality of air vent grooves 16 communicating with the forming cavity 4 are formed through the top and inside of the lower die 1. The fitting part of the lower die 1 and the upper die 2 and the forming cavity 4 and the outside are provided with the air vent grooves 16 to facilitate the discharge of gas, so as to reduce the negative impact on the workpiece caused by the formation of air pressure.

[0029] Referring to Figure 4 , the connecting rod 8 is slidably connected inside the adjacent ejector rod 6, and a matching chute is formed inside the ejector rod 6. When the second moving plate 7 moves up and down, it drives the connecting rod 8 to move up and down inside the ejector rod 6, which is beneficial to ensure the free movement operation of the connecting rod 8 and ensure the stability of the movement of the second moving plate 7.

[0030] When the first moving plate 5 is in contact with the bottom of the lower die 1, the top of the ejector rod 6 is flush with the top surface of the lower die 1. When the ejector rod 6 pushes the workpiece upward, the workpiece located above the forming cavity 4 can ensure the smoothness of the movement of the movable plate 18 to move the workpiece.

[0031] Working principle: After the workpiece completes the stamping work inside the forming cavity 4 through the cooperation of the lower die 1 and the upper die 2, the electric push rod 10 operates to drive the second moving plate 7 to move upward. The upward moving second moving plate 7 can synchronously drive the first moving plate 5 to move upward under the action of the spring 9. Thus, the upward moving first moving plate 5 can better drive the ejector rod 6 to move upward, and the separation operation of the workpiece from the forming cavity 4 can be completed;

[0032] When controlling the electric push rod 10 to continuously operate and drive the second moving plate 7 to move upward, under the action of the spring 9, the positioning of the first moving plate 5 and the movement of the second moving plate 7 can be realized. When the second moving plate 7 moves upward, it drives the rack 11 to be meshed and connected with the gear 13. When the second moving plate 7 moves upward, it drives the rack 11 to move upward. The moving rack 11 is meshed and connected with the gear 13, and under the movement action of the rack 11, the rotation operation of the coupling shaft 19 can be realized. The rotating coupling shaft 19 can drive the bevel gear 14 to rotate to realize the rotation of the rotating shaft 17. Thus, under the rotation action of the rotating shaft 17, the movable plate 18 can be driven to rotate to push the workpiece to the side of the lower die 1, and the blanking work of the workpiece can be completed. The blanking work of the workpiece after stamping is made simpler and more efficient, and the problem of manual blanking operation between the lower die 1 and the upper die 2 is avoided, which is beneficial to reducing the occurrence of safety accidents and has good use effects.

[0033] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A precision stamping die facilitating exhaust, comprising a lower die (1), a forming cavity (4) arranged inside the lower die (1), an upper die (2) arranged above the lower die (1), and a base (3) fixedly connected to the bottom of the lower die (1), characterized in that, A ejector component is provided between the top of the base (3) and the bottom of the lower die (1). The ejector component includes four ejector rods (6) slidably connected to the inside of the lower die (1) evenly, a first moving plate (5) fixedly connected to the bottoms of the four ejector rods (6), a second moving plate (7) movably connected to the bottom of the first moving plate (5), and four elastic components evenly arranged between the bottom of the first moving plate (5) and the top of the second moving plate (7). One side of the lower die (1) is fixedly connected with a second fixed plate (15). A rotating shaft (17) is rotatably connected to the inside of the second fixed plate (15). The top of the rotating shaft (17) is fixedly connected with a movable plate (18) that can swing above the forming cavity (4). The bottom of the rotating shaft (17) is connected to the second moving plate (7) through a transmission component. When the second moving plate (7) moves up and down, it drives the rotating shaft (17) to rotate through the transmission component.

2. The precision stamping die facilitating exhaust according to claim 1, wherein The elastic component includes a connecting rod (8) fixedly connected to the top of the second moving plate (7) and four springs (9) sleeved on the outside of the corresponding connecting rods (8). The tops of the four connecting rods (8) all penetrate through the first moving plate (5) and extend into the inside of the adjacent ejector rods (6). A middle part of the top side of the base (3) and the bottom of the second moving plate (7) are fixedly connected with an electric push rod (10).

3. The precision stamping die facilitating exhaust according to claim 2, wherein, The transmission component includes a rack (11) fixedly connected to one side of the second moving plate (7), two first fixed plates (12) fixedly connected to the bottom of the lower die (1), a connecting shaft (19) rotatably connected to the inside of the two first fixed plates (12), a gear (13) fixedly connected to one end of the connecting shaft (19) and located above the rack (11), and two bevel gears (14) meshed with each other. The two bevel gears (14) are respectively fixedly connected to the other end of the connecting shaft (19) and the bottom of the rotating shaft (17). When the second moving plate (7) moves upward, it drives the rack (11) to be meshed with the gear (13).

4. The precision stamping die convenient for exhaust according to claim 3, characterized in that, A plurality of air vent grooves (16) communicating with the forming cavity (4) are formed through the top and the inside of the lower die (1).

5. A precision stamping die facilitating exhaust according to claim 4, characterized in that, The connecting rod (8) is slidably connected to the inside of the adjacent ejector rod (6), and a sliding groove for mating connection is formed in the inside of the ejector rod (6).

6. The precision stamping die facilitating exhaust according to claim 5, characterized in that, When the first moving plate (5) is in contact with the bottom of the lower die (1), the tops of the ejector rods (6) are flush with the top surface of the lower die (1).

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