Punching die capable of automatically and precisely switching

Abstract

The utility model discloses a punching die capable of being automatically and precisely switched, and belongs to the technical field of punching dies. The punching die comprises a base, a lower die is fixedly connected to the upper portion of the base, a round hole is formed in the center of the top face of the lower die, a rotating table is rotationally arranged in the round hole, and a plurality of supporting frames are fixedly connected to the top face of the rotating table in a circumferential array mode; an upper die used for punching is arranged on the top face of the supporting frame, and a vertical plate is fixedly connected to one side of the lower die. According to the punching die capable of automatically and precisely switching, the pushing and pressing assemblies at the two ends of the horizontal plate are matched with the rotating table and the multiple supporting frames, compatibility of large workpieces and small workpieces is achieved, meanwhile, a motor drives a double-end lead screw to rotate, opposite movement of clamping plates is achieved, then fixing of the workpieces is achieved, an electric push rod drives a sliding plate to move, and the punching efficiency is improved. Compared with an existing device, the punching device has the advantages that the problem that the shape and the size of a workpiece are greatly limited due to the limitation of the upper die is solved, and the compatibility of the workpiece and the punching stability are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of punching dies, and in particular relates to a punching die capable of automatic and precise switching. Background Art

[0002] During the punching operation of the workpiece, the same product will need to replace the mold due to different processing holes in order to facilitate the processing of the workpiece. This requires stopping the production line when replacing the mold, removing the mold from the punching die base on the machine tool, and then reinstalling the mold and putting it back on the machine tool. This results in low finished product processing efficiency when processing different punching products, low efficiency in replacing the punching mold on the punching die base, and low degree of automation.

[0003] The existing device can conveniently replace the upper mold when in use, but due to the limitation of the upper mold, the shape and size of the workpiece are greatly restricted, making it difficult to place, fix and process the workpiece.

[0004] To this end, we proposed a punching die that can automatically and precisely switch to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to solve the problem in the prior art that the upper die has limitations on the shape and size of the workpiece, and to propose a punching die that can be automatically and precisely switched.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A punching die capable of automatically switching precision holes comprises a base, a lower die is fixedly connected to the top of the base, a circular hole is opened at the center of the top surface of the lower die, a rotating table is rotatably arranged in the circular hole, a plurality of supporting frames are fixedly connected to the top surface of the rotating table in a circular array, and an upper die for punching holes is arranged on the top surface of the supporting frame, a vertical plate is fixedly connected to one side of the lower die, a horizontal plate located directly above the lower die is fixedly connected to the top surface of the vertical plate, and pushing components for pushing the upper die are arranged at both ends of the horizontal plate, and the vertical plate slides upwardly to move the upper die upwardly. The invention relates to a vertical plate having two telescopic rods, a cavity being provided inside the vertical plate, and a limit assembly being provided in the cavity for limiting the simultaneous movement of the two telescopic rods, the lower mold being provided with slide grooves on both sides of the vertical plate, and a U-shaped sliding plate being slidably provided in the slide grooves, a double-headed screw being rotatably connected between the two sides of the sliding plate, and a splint being threadedly sleeved at both ends of the double-headed screw, and the upper end of the splint extending to above the slide groove, an electric push rod being fixedly connected between one side of the sliding plate and the side wall of the slide groove, and a motor for driving the double-headed screw to rotate being fixedly installed on the other side.

[0008] Preferably, the support frame includes two vertical blocks fixedly connected to the rotating table and a horizontal block, the horizontal block connects the upper ends of the support blocks at both ends and extends to the outside of the rotating table, and the upper mold is located on the side of the horizontal block away from the support block.

[0009] Preferably, the horizontal block is fan-shaped, and two telescopic rods are respectively attached to two sides of one of the horizontal blocks, and one end of the telescopic rod located outside the cavity is beveled.

[0010] Preferably, the limiting assembly comprises a limiting block slidably disposed in the cavity, springs are fixedly connected between the two sides of the lower end of the limiting block and the side walls of the cavity, and the two sides of the upper end are in inclined contact with the telescopic rod.

[0011] Preferably, a baffle is fixedly connected to a side of the lower mold away from the vertical plate, and through grooves for the upper mold to pass through are formed on both sides of the upper end of the baffle.

[0012] Preferably, the sides of the lower ends of the two telescopic rods facing each other and the side of the upper end of the baffle are both fixedly connected with support blocks.

[0013] To sum up, the technical effects and advantages of the present application are as follows: the punching die can be automatically and precisely switched, and the compatibility with large and small workpieces is achieved through the pushing components at both ends of the horizontal plate, in cooperation with a rotating table and multiple support frames. At the same time, the double-headed screw is driven by a motor to rotate, so that the clamping plates can move toward each other, thereby fixing the workpieces. The sliding plate is driven by an electric push rod to move, thereby adjusting the punching position. Compared with the existing device, it avoids the problem of large restrictions on the shape and size of the workpiece due to the limitation of the upper mold, and improves the compatibility with the workpiece and the stability of punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the chute of the utility model;

[0016] Figure 3 This is a structural diagram of the support frame of the utility model;

[0017] Figure 4 This is a cross-sectional view of the telescopic rod of the utility model after the support frame is removed;

[0018] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0019] In the figure: 1. base; 2. lower mold; 3. round hole; 4. rotating table; 5. support frame; 6. upper mold; 7. vertical plate; 8. horizontal plate; 9. pushing assembly; 10. telescopic rod; 11. slide groove; 12. sliding plate; 13. double-headed screw; 14. clamping plate; 15. electric push rod; 16. motor; 17. vertical block; 18. horizontal block; 19. limit block; 20. spring; 21. baffle; 22. through groove; 23. support block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0021] Reference Figure 1-3 , a punching die capable of automatically switching with precision, comprising a base 1, a lower die 2 is fixedly connected to the top of the base 1, a circular hole 3 is opened at the center of the top surface of the lower die 2, and a rotating table 4 is rotatably arranged in the circular hole 3, a stepping motor for driving the rotating table 4 to rotate should be arranged inside the base 1, a plurality of support frames 5 are fixedly connected to the top surface of the rotating table 4 in a circular array, and an upper die 6 for punching is arranged on the top surface of the support frame 5, the upper die 6 is a prior art, comprising a punching rod, a top block and a spring 20, a vertical plate 7 is fixedly connected to one side of the lower die 2, and a horizontal plate 8 located directly above the lower die 2 is fixedly connected to the top surface of the vertical plate 7, and a pushing assembly 9 for pushing the upper die 6 is arranged at both ends of the horizontal plate 8, the pushing assembly 9 is a prior art, comprising a cylinder and a pressing block, two telescopic rods 10 are slidably arranged on the vertical plate 7, a cavity is arranged inside the vertical plate 7, and a limit assembly for limiting the simultaneous movement of the two telescopic rods 10 is arranged in the cavity, the lower die 2 is located on the vertical plate 7 The two sides of the slide groove 11 are provided with a U-shaped sliding plate 12 that slides in the slide groove 11. A double-headed screw 13 is rotatably connected between the two sides of the sliding plate 12, and a clamping plate 14 is threadedly sleeved on both ends of the double-headed screw 13, and the upper end of the clamping plate 14 extends above the slide groove 11. An electric push rod 15 is fixedly connected between one side of the sliding plate 12 and the side wall of the slide groove 11, and a motor 16 that drives the double-headed screw 13 to rotate is fixedly installed on the other side. Through the pushing components 9 at both ends of the horizontal plate 8, the rotating table 4 and multiple support frames 5 are cooperated, and the compatibility of large and small workpieces is achieved. At the same time, the double-headed screw 13 is driven to rotate by the motor 16 to achieve the relative movement of the clamping plate 14, thereby achieving the fixation of the workpiece, and the sliding plate 12 is driven to move by the electric push rod 15, thereby achieving the adjustment of the punching position. Compared with the existing device, it avoids the problem of large restrictions on the shape and size of the workpiece due to the limitation of the upper mold 6, and improves the compatibility of the workpiece and the stability of punching.

[0022] Reference Figure 1-3The support frame 5 includes two vertical blocks 17 fixedly connected to the rotating table 4 and a horizontal block 18. The horizontal block 18 connects the upper ends of the support blocks 23 at both ends and extends to the outside of the rotating table 4. The upper mold 6 is located on the side of the horizontal block 18 away from the support block 23. The number of upper molds 6 and support frames 5 should be an even number to achieve the normal operation of the two pushing components 9.

[0023] The horizontal block 18 is fan-shaped, and the two telescopic rods 10 are respectively attached to the two sides of one of the horizontal blocks 18. One end of the telescopic rod 10 located outside the cavity is beveled, and the bevel can drive the telescopic rod 10 to telescope when the horizontal block 18 rotates.

[0024] Reference Figure 4-5 The limit assembly includes a limit block 19 slidably arranged in the cavity, and springs 20 are fixedly connected between the lower ends of the limit block 19 and the side walls of the cavity, and the upper ends of the limit block 19 and the telescopic rod 10 are fitted with inclined surfaces. The limit block 19 is automatically reset by the spring 20, and the telescopic rod 10 drives the limit block 19 to move by the inclined surface fitting.

[0025] Reference Figure 1-3 A baffle 21 is fixedly connected to the side of the lower mold 2 away from the vertical plate 7, and through grooves 22 for the upper mold 6 to pass through are opened on both sides of the upper end of the baffle 21. Support blocks 23 are fixedly connected to the sides of the lower ends of the two telescopic rods 10 facing each other and the upper end of the baffle 21. The support block 23 can provide support for the horizontal block 18 to avoid large deformation of the horizontal block 18 when the pushing component 9 is punching, thereby improving the stability of the device.

[0026] Working principle:

[0027] When using the punching die that can automatically and precisely switch, if it is a smaller workpiece, it can be placed between the clamps 14, and the motor 16 is turned on to drive the double-headed screw 13 to rotate, and the clamps 14 move accordingly until the four clamps 14 are all in contact with the workpiece, and then the electric push rod 15 is turned on to drive the sliding plate 12 to move until the workpiece reaches the required position, and then the pushing assembly 9 can be turned on to punch the workpiece. If it is a larger workpiece, it can be placed on the side of the baffle 21 away from the vertical plate 7. At this time, the workpiece is manually adjusted to the required position, and then the pushing assembly 9 can be turned on to punch the workpiece. When the punching die needs to be adjusted, it is only necessary to turn on the stepping motor to drive the rotating table 4 to rotate until the horizontal block 18 of the required upper mold 6 is located between the two telescopic rods 10, so as to realize the switching of the punching holes. The above is the entire use process of the punching die that can automatically and precisely switch.

[0028] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A punching die capable of automatically switching with high precision, comprising a base (1), characterized in that: A lower mold (2) is fixedly connected to the top of the base (1), a circular hole (3) is opened at the center of the top surface of the lower mold (2), and a rotating table (4) is rotatably arranged in the circular hole (3), a plurality of support frames (5) are fixedly connected to the top surface of the rotating table (4) in a circumferential array, and an upper mold (6) for punching holes is arranged on the top surface of the support frame (5), a vertical plate (7) is fixedly connected to one side of the lower mold (2), and a horizontal plate (8) located directly above the lower mold (2) is fixedly connected to the top surface of the vertical plate (7), and pushing components (9) for pushing the upper mold (6) are arranged at both ends of the horizontal plate (8), two telescopic rods (10) are slidably arranged on the vertical plate (7), and the vertical plate (7) is provided with a plurality of support frames (5) in a circumferential array, and an upper mold (6) for punching holes is arranged on the top surface of the support frame (5), and a vertical plate (7) is fixedly connected to one side of the lower mold (2), and a horizontal plate (8) located directly above the lower mold (2) is fixedly connected to the top surface of the vertical plate (7), and pushing components (9) for pushing the upper mold (6) are arranged at both ends of the horizontal plate (8), and two telescopic rods (10) are slidably arranged on the vertical plate (7). A cavity is provided inside the plate (7), and a limit assembly for limiting the simultaneous movement of the two telescopic rods (10) is provided in the cavity. The lower mold (2) is located on both sides of the vertical plate (7) and has a slide groove (11), and a U-shaped sliding plate (12) is slidably provided in the slide groove (11). A double-headed screw (13) is rotatably connected between the two sides of the sliding plate (12), and a clamping plate (14) is threadedly sleeved on both ends of the double-headed screw (13), and the upper end of the clamping plate (14) extends above the slide groove (11). An electric push rod (15) is fixedly connected between one side of the sliding plate (12) and the side wall of the slide groove (11), and a motor (16) for driving the double-headed screw (13) to rotate is fixedly installed on the other side.

2. The punching die capable of automatic precision switching according to claim 1, characterized in that: The support frame (5) comprises two vertical blocks (17) fixedly connected to the rotating table (4) and a horizontal block (18); the horizontal block (18) connects the upper ends of the supporting blocks (23) at both ends and extends to the outside of the rotating table (4); the upper mold (6) is located on a side of the horizontal block (18) away from the supporting block (23).

3. The punching die capable of automatic precision switching according to claim 2, characterized in that: The horizontal block (18) is fan-shaped, and two telescopic rods (10) are respectively attached to two sides of one of the horizontal blocks (18), and one end of the telescopic rod (10) located outside the cavity is beveled.

4. The punching die capable of automatic precision switching according to claim 1, characterized in that: The limit assembly comprises a limit block (19) slidably arranged in the cavity, wherein springs (20) are fixedly connected between the two sides of the lower end of the limit block (19) and the side walls of the cavity, and the two sides of the upper end are in inclined contact with the telescopic rod (10).

5. The punching die capable of automatic precision switching according to claim 1, characterized in that: A baffle (21) is fixedly connected to one side of the lower mold (2) away from the vertical plate (7), and through grooves (22) for the upper mold (6) to pass through are formed on both sides of the upper end of the baffle (21).

6. The punching die capable of automatic precision switching according to claim 5, characterized in that: The sides of the lower ends of the two telescopic rods (10) facing each other and the upper end of the baffle (21) are both fixedly connected with a support block (23).

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