Punching die structure

Abstract

The utility model discloses a punching die structure which comprises a punching assembly, a die holder assembly, a bearing assembly and a pushing assembly, the punching assembly comprises a punching head, and the punching head can move up and down in the vertical direction; the die holder assembly comprises a lower die holder, the lower die holder is arranged below the stamping head, and a buffer hole allowing the stamping head to abut in is formed in the lower die holder; the bearing assembly comprises a bearing column and a first elastic piece, the bearing column is arranged in the buffering hole in a sealed and sliding mode, and the first elastic piece is connected with the bearing column so that the top face of the bearing column can be flush with the upper surface of the lower die base. Compared with the prior art, the punching die structure has the advantages that on the premise that the punching effect is guaranteed, waste materials are pushed out of the buffering holes and the holes of the copper bars in a pushing mode, the waste materials are effectively prevented from being clamped in the buffering holes or the holes of the copper bars, and smooth discharging of the waste materials is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper bar processing technical field especially relates to a punching die structure. BACKGROUND

[0002] Copper bar is a kind of large current conducting product, sometimes need to punch the copper bar in the processing of copper bar. The existing punching die (such as the punching die disclosed in application No.202220991680.8) when punching the copper bar, waste is discharged through the discharge channel formed in the lower die holder, since the lower die holder is thick, and the punching diameter is small, to ensure the punching effect, the discharge channel is generally set relatively long, when discharging waste, the material blocking situation is prone to occur, if the diameter of discharge channel is expanded, although the material blocking problem can be solved, but when punching, the hole edge punched out is prone to recess due to no effective support, resulting in copper bar scrap. SUMMARY

[0003] The utility model aims at overcoming the above technical inadequacy, and provides a punching die structure, to solve the technical problem that waste is discharged through the discharge channel formed in the lower die holder in the prior art.

[0004] To achieve the above technical purpose, the technical scheme of the utility model provides a punching die structure, comprising:

[0005] A stamping assembly comprising a stamping head, the stamping head can move up and down in the vertical direction;

[0006] A die holder assembly comprising a lower die holder, the lower die holder is arranged below the stamping head, and a buffer hole is formed in the lower die holder for the stamping head to enter;

[0007] A bearing assembly comprising a bearing column and a first elastic member, the bearing column is sealingly and slidingly arranged in the buffer hole, and the first elastic member is arranged in the buffer hole and connected between the lower die holder and the bearing column, so that the top surface of the bearing column is flush with the upper surface of the lower die holder;

[0008] A pushing assembly abutting against the bearing column, pushing the pushing assembly can move the bearing column upward to push the waste out of the buffer hole.

[0009] Further, the diameter of the bearing column is equal to the diameter of the stamping head.

[0010] Further, the lower die seat is further provided with a containing cavity and a first through hole, the containing cavity is arranged below the buffer hole, the first through hole is arranged between the buffer hole and the containing cavity and communicates the buffer hole and the containing cavity, the pushing assembly comprises a pushing block, a connecting column, a second elastic member and a pushing rod, the pushing block is slidingly arranged in the containing cavity, the top of the pushing block is provided with an inclined slope, the connecting column slidingly penetrates the first through hole, the top of the connecting column abuts against the bottom of the bearing column, the second elastic member is arranged in the containing cavity, one end of the second elastic member is fixedly connected with the pushing block, the other end of the second elastic member is fixedly connected with the lower die seat, so that the inclined slope abuts against the bottom of the connecting column, one end of the pushing rod is fixedly connected with the pushing block, the other end of the pushing rod slidingly penetrates the lower die seat and extends out of the containing cavity.

[0011] Further, the diameter of the first through hole is smaller than the diameter of the buffer hole.

[0012] Further, the first spring is arranged below the bearing column and is sleeved on the connecting column, the lower end of the first spring is fixedly connected with the lower die seat, and the upper end of the first spring is fixedly connected with the bottom of the bearing column.

[0013] Further, the second elastic member is a second spring, and the second spring is sleeved on the pushing rod.

[0014] Further, the stamping assembly further comprises an upper die seat, the upper die seat is arranged directly above the lower die seat, and the top of the stamping head is fixedly connected with the bottom of the upper die seat.

[0015] Further, the die seat assembly further comprises a plurality of guide rods, each guide rod is vertically arranged, the bottom of each guide rod is fixedly connected with the lower die seat, and the upper die seat is slidingly sleeved on each guide rod.

[0016] Further, the punching die structure further comprises a pressing assembly, the pressing assembly is connected with the upper die seat and is used for pressing the copper bar.

[0017] Further, the pressing assembly comprises a plurality of limiting rods, a plurality of limiting caps, a pressing seat, a plurality of third elastic members, each of the limiting rods is vertically arranged and slidably penetrates the upper die seat, each of the limiting caps is arranged above the upper die seat and is fixedly connected with the top of each of the limiting rods in one-to-one correspondence, the pressing seat is arranged directly below the upper die seat and is fixedly connected with the bottom of each of the limiting rods, a second penetrating hole, through which the stamping head slides, is formed in the pressing seat, each of the third elastic members is arranged between the upper die seat and the pressing seat, the upper end of each of the third elastic members is connected with the upper die seat, and the lower end of each of the third elastic members is connected with the pressing seat, so that each of the limiting caps abuts against the upper surface of the upper die seat, and when each of the limiting caps abuts against the upper surface of the upper die seat, the bottom surface of the stamping head is higher than the lower surface of the pressing seat.

[0018] Compared with the prior art, the beneficial effects of the utility model include: in the punching process of the stamping head on the copper bar, the stamping head will extrude the bearing column downward, at this time, the first elastic member accumulates compression elastic potential energy, the punched waste falls on the bearing column and moves downward together with the bearing column, after the punching is completed, the stamping head moves upward, the first elastic member gradually releases the compression elastic potential energy and pushes the bearing column to move upward, so that the waste enters the hole of the copper bar again, the hand exerts force on the pushing assembly, so that the pushing assembly pushes the bearing column to move upward, at this time, the first elastic member accumulates tensile elastic potential energy, after the bearing column pushes the waste in the hole of the copper bar out, the waste can be taken away by artificial, the force exerted on the pushing assembly is cancelled again, the first elastic member releases the tensile elastic potential energy and pulls the bearing column to move downward, so that the waste is taken away, the punching die structure of the utility model can effectively avoid the waste from being stuck in the buffer hole or the hole of the copper bar under the premise of guaranteeing the punching effect, so that the waste is smoothly discharged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the punching die structure provided by the utility model;

[0020] Figure 2 It is a structure schematic view of the punching die structure provided by the utility model;

[0021] In the figure: 100 - stamping assembly, 110 - stamping head, 120 - upper die holder, 200 - die holder assembly, 210 - lower die holder, 211 - buffer hole, 212 - accommodating cavity, 213 - first through hole, 220 - guide rod, 300 - bearing assembly, 310 - bearing column, 320 - first elastic piece, 400 - pushing assembly, 410 - pushing block, 411 - slope, 420 - connecting column, 430 - second elastic piece, 440 - pushing rod, 500 - pressing assembly, 510 - limiting rod, 520 - limiting cap, 530 - pressing seat, 531 - second through hole, 540 - third elastic piece. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] The utility model provides a kind of punching die structure, its structure as shown in Figure 1 - Figure 2 As shown, including stamping assembly 100, die holder assembly 200, bearing assembly 300 and pushing assembly 400, the stamping assembly 100 includes stamping head 110, the stamping head 110 can be moved up and down in vertical direction;The die holder assembly 200 includes lower die holder 210, the lower die holder 210 is arranged below the stamping head 110, and buffer hole 211 for the stamping head 110 is inserted into being opened on it;The bearing assembly 300 includes bearing column 310 and first elastic piece 320, the bearing column 310 is sealingly and slidingly arranged in the buffer hole 211, and the first elastic piece 320 is arranged in the buffer hole 211 and is connected with the lower die holder 210 and the bearing column 310, so that the top surface of the bearing column 310 is flush with the upper surface of the lower die holder 210;The pushing assembly 400 is in abutment with the bearing column 310, and pushing the pushing assembly 400 can make the bearing column 310 move upwards, to push waste from the buffer hole 211.

[0024] In use, first, the punching die is installed on the punch machine, then the copper bar is placed on the lower die base 210, and the pre-punching position of the copper bar is ensured to correspond to the buffer hole 211. The punch head 110 is driven by the punch machine to move downward, so that a hole can be punched at the pre-punching position of the copper bar. During the punching process of the copper bar by the punch head 110, the punch head 110 will extrude the bearing column 310 downward. At this time, the first elastic member 320 accumulates compression elastic potential energy. The punched waste falls on the bearing column 310 and moves downward together with the bearing column 310. After the punching is completed, the punch head 110 moves upward. The first elastic member 320 gradually releases the compression elastic potential energy and pushes the bearing column 310 to move upward to reset. The waste enters the hole of the copper bar again. The hand exerts a force on the pushing assembly 400 to push the bearing column 310 to move upward. At this time, the first elastic member 320 accumulates tensile elastic potential energy. After the waste in the hole of the copper bar is pushed out by the bearing column 310, the waste is manually removed. Then, the force applied to the pushing assembly 400 is removed. The first elastic member 320 releases the tensile elastic potential energy and pulls the bearing column 310 to move downward to reset. Finally, the copper bar is removed. The structure of the punching die pushes the waste out of the buffer hole 211 and the hole of the copper bar in a pushing manner under the premise of ensuring the punching effect, effectively avoids the waste from being stuck in the buffer hole 211 or the hole of the copper bar, and ensures the smooth discharge of the waste.

[0025] As a preferred embodiment, please refer to Figure 2 The diameter of the bearing column 310 is equal to the diameter of the punch head 110, so that the diameter of the buffer hole 211 is equal to the diameter of the hole of the pre-punching, which ensures that the edge of the hole of the pre-punching can be effectively supported.

[0026] As a preferred embodiment, please refer to Figure 2The lower die seat 210 is further provided with a containing cavity 212 and a first through hole 213. The containing cavity 212 is arranged below the buffer hole 211. The first through hole 213 is arranged between the buffer hole 211 and the containing cavity 212 and communicates the buffer hole 211 and the containing cavity 212. The pushing assembly 400 comprises a pushing block 410, a connecting column 420, a second elastic member 430 and a pushing rod 440. The pushing block 410 is slidingly arranged in the containing cavity 212. The top of the pushing block 410 is provided with a slope 411. The connecting column 420 slidingly penetrates the first through hole 213. The top of the connecting column 420 abuts against the bottom of the bearing column 310. The second elastic member 430 is arranged in the containing cavity 212. One end of the second elastic member 430 is fixedly connected with the pushing block 410. The other end of the second elastic member 430 is fixedly connected with the lower die seat 210, so that the slope 411 abuts against the bottom of the connecting column 420. One end of the pushing rod 440 is fixedly connected with the pushing block 410. The other end of the pushing rod 440 slidingly penetrates the lower die seat 210 and extends out of the containing cavity 212. After the punching is completed, the punching head 110 moves upward. The first elastic member 320 gradually releases the compressed elastic potential energy and pushes the bearing column 310 to move upward, so as to reset. The waste material enters the hole of the copper bar again. A force is applied to the outer end of the pushing rod 440 by hand. The pushing rod 440 drives the pushing block 410 to move inward. At this time, the second elastic member 430 accumulates the tensile elastic potential energy. Due to the action of the slope 411, the connecting column 420 moves upward, so as to push the bearing column 310 to move upward until the waste material on the bearing column 310 is removed from the hole of the copper bar. At this time, the first elastic member 320 accumulates the tensile elastic potential energy. The action force applied to the outer end of the pushing rod 440 is cancelled. The second elastic member 430 releases the tensile elastic potential energy. The pushing block 410 resets. The first elastic member 320 releases the tensile elastic potential energy. The bearing column 310 is pulled to move downward. The bearing column 310 resets.

[0027] As a preferred embodiment, refer to Figure 2 The diameter of the first through hole 213 is smaller than the diameter of the buffer hole 211, so as to facilitate arranging the first elastic member 320 at the bottom of the buffer hole 211.

[0028] As a preferred embodiment, refer to Figure 2The first elastic member 320 is a first spring, which is located below the bearing column 310, sleeved on the connecting column 420, and fixedly connected at the lower end with the lower die seat 210 and at the upper end with the bottom of the bearing column 310. The first spring is limited by the connecting column 420 to prevent compression or tensile deformation.

[0029] As a preferred embodiment, refer to Figure 2 The second elastic member 430 is a second spring, which is sleeved on the pushing rod 440 and limited by the pushing rod 440 to prevent compression or tensile deformation.

[0030] As a preferred embodiment, refer to Figure 2 The stamping assembly 100 further comprises an upper die seat 120, which is arranged directly above the lower die seat 210 and fixedly connected at the top with the bottom of the upper die seat 120. In use, the punching die is first installed on a punching machine, and then the upper die seat 120 is connected with the punching machine, so that the upper die seat 120 and the stamping head 110 are driven to move up and down by the punching machine.

[0031] As a preferred embodiment, refer to Figure 2 The die seat assembly 200 further comprises a plurality of guide rods 220, each of which is vertically arranged and fixedly connected at the bottom with the lower die seat 210. The upper die seat 120 is sleeved on each of the guide rods 220 to limit and guide the up-and-down movement of the upper die seat 120.

[0032] As a preferred embodiment, refer to Figure 2 The punching die structure further comprises a pressing assembly 500, which is connected with the upper die seat 120 to press the copper bar and prevent the copper bar from moving during punching to improve the punching effect.

[0033] As a preferred embodiment, refer to Figure 2The pressing assembly 500 comprises a plurality of limiting rods 510, a plurality of limiting caps 520, a pressing base 530 and a plurality of third elastic members 540, each of the limiting rods 510 is vertically arranged and slidably penetrates the upper die seat 120, each of the limiting caps 520 is arranged above the upper die seat 120 and is fixedly connected with the top of each of the limiting rods 510 in one-to-one correspondence, the pressing base 530 is arranged directly below the upper die seat 120 and is fixedly connected with the bottom of each of the limiting rods 510, the pressing base 530 is provided with a second penetrating hole 531 for the stamping head 110 to slide through, each of the third elastic members 540 is arranged between the upper die seat 120 and the pressing base 530, the upper end of each of the third elastic members 540 is connected with the upper die seat 120, and the lower end of each of the third elastic members 540 is connected with the pressing base 530, so that each of the limiting caps 520 abuts against the upper surface of the upper die seat 120, when each of the limiting caps 520 abuts against the upper surface of the upper die seat 120, the bottom surface of the stamping head 110 is higher than the lower surface of the pressing base 530, when the stamping machine drives the upper die seat 120 to move downward, the pressing base 530 abuts against the copper bar in advance and presses the copper bar, along with the continuous downward movement of the upper die seat 120, the stamping head 110 continues to move downward synchronously, the stamping head 110 moves out of the second penetrating hole 531, and punching on the copper bar is completed.

[0034] As a preferred embodiment, refer to Figure 2 The third elastic member 540 is a third spring, each of the third springs is sleeved on each of the limiting rods 510, and the third spring is limited by the limiting rod 510, so that compression or tensile deformation of the third spring is prevented.

[0035] In order to better understand the present application, the following will be combined with Figure 1 - Figure 2 The working principle of the technical scheme of the present application is described in detail.

[0036] In use, first, the punching die is installed on the punch, then the upper die holder 120 is connected with the punch, the copper bar is placed on the lower die holder 210, and the pre-punching position of the copper bar is ensured to correspond to the buffer hole 211. The upper die holder 120 is driven by the punch to move up and down, and the punch head 110 is driven to move up and down. When the punch drives the upper die holder 120 to move downward, the pressing seat 530 will be in advance abutted with the copper bar and press the copper bar. With the continuous downward movement of the upper die holder 120, the punch head 110 continues to move downward synchronously. The punch head 110 will move out of the second through hole 531, so that a hole can be punched at the pre-punching position of the copper bar. During the punching process of the copper bar, the punch head 110 will extrude the bearing column 310 downward. At this time, the first elastic member 320 accumulates the compression elastic potential energy. The punched waste falls on the bearing column 310 and moves downward together with the bearing column 310. After the punching is completed, the punch head 110 moves upward. The first elastic member 320 gradually releases the compression elastic potential energy and pushes the bearing column 310 to move upward, so as to reset. The waste enters the hole of the copper bar again. The user applies force to the outer end of the pushing rod 440. The pushing rod 440 drives the pushing block 410 to move inward. At this time, the second elastic member 430 accumulates the tensile elastic potential energy. Due to the action of the slope 411, the connecting column 420 moves upward, so as to push the bearing column 310 to move upward. Until the waste on the bearing column 310 moves out of the hole of the copper bar. At this time, the first elastic member 320 accumulates the tensile elastic potential energy. The action force applied to the outer end of the pushing rod 440 is cancelled. The second elastic member 430 releases the tensile elastic potential energy. The pushing block 410 resets. The first elastic member 320 releases the tensile elastic potential energy. The bearing column 310 is pulled to move downward. Finally, the copper bar is taken away. The punching die structure can effectively avoid the waste from being stuck in the buffer hole 211 or the hole of the copper bar, and ensure the smooth discharge of the waste.

[0037] The punching die structure has the following beneficial effects:

[0038] (1) When the punch drives the upper die holder 120 to move downward, the pressing seat 530 will be in advance abutted with the copper bar and press the copper bar. With the continuous downward movement of the upper die holder 120, the punch head 110 continues to move downward synchronously. The punch head 110 will move out of the second through hole 531, so that a hole can be punched at the pre-punching position of the copper bar. The pressing seat 530 presses the copper bar, prevents the copper bar from moving during punching, and improves the punching effect.

[0039] (2) A human hand exerts force on the outer end of the push rod 440, which drives the push block 410 to move inward, at which time the second elastic member 430 accumulates tensile elastic potential energy, and due to the action of the slope 411, the connecting column 420 moves upward, thereby pushing the bearing column 310 to move upward until the waste on the bearing column 310 is removed from the hole of the copper row, thereby achieving the discharge of the waste;

[0040] (3) The punching die structure adopts a pushing mode to push the waste out of the buffer hole 211 and the hole of the copper row under the premise of ensuring the punching effect, effectively avoids the waste from being stuck in the buffer hole 211 or the hole of the copper row, and ensures the smooth discharge of the waste.

[0041] The specific implementation mode of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and deformations made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A piercing die structure characterized by, The punch assembly comprises a punch head which can move up and down in the vertical direction. The die holder assembly comprises a lower die holder which is arranged below the punch head and has a buffer hole for the punch head to enter. The bearing assembly comprises a bearing column which is sealingly arranged in the buffer hole, and a first elastic member which is arranged in the buffer hole and connects the lower die holder and the bearing column, so that the top surface of the bearing column is flush with the upper surface of the lower die holder. The pushing assembly is in abutment with the bearing column, and pushing the pushing assembly can move the bearing column upward to push the waste out of the buffer hole. The diameter of the bearing column is equal to the diameter of the punch head.

2. The piercing die structure according to claim 1, wherein The lower die holder further has a receiving cavity arranged below the buffer hole and a first through hole arranged between the buffer hole and the receiving cavity and connecting the buffer hole and the receiving cavity.

3. The piercing die structure of claim 1 wherein, The first through hole has a diameter smaller than that of the buffer hole.

4. The piercing die structure according to claim 3, wherein The first elastic member is a first spring which is arranged below the bearing column and sleeved on the connecting column.

5. The piercing die structure of claim 3 wherein, The second elastic member is a second spring which is sleeved on the pushing rod.

6. The piercing die structure of claim 3 wherein, The punch assembly further comprises an upper die holder which is arranged directly above the lower die holder, and the top of the punch head is fixedly connected with the bottom of the upper die holder.

7. The piercing die structure of claim 1 wherein, The die holder assembly further comprises a plurality of guide rods which are vertically arranged, and the bottom of each guide rod is fixedly connected with the lower die holder.

8. The piercing die structure of claim 7, wherein The pressing assembly is connected with the upper die holder to press the copper bar.

9. The piercing die structure of claim 7 wherein, ​ 10. The piercing die structure of claim 9, wherein, The pressing assembly comprises a plurality of limiting rods, a plurality of limiting caps, a pressing seat, a plurality of third elastic members, each of the limiting rods is vertically arranged and slidably penetrates the upper die seat, each of the limiting caps is arranged above the upper die seat and is fixedly connected with the top of each of the limiting rods in one-to-one correspondence, the pressing seat is arranged directly below the upper die seat and is fixedly connected with the bottom of each of the limiting rods, a second penetrating hole is formed in the pressing seat and the stamping head slides through the second penetrating hole, each of the third elastic members is arranged between the upper die seat and the pressing seat, the upper end of each of the third elastic members is connected with the upper die seat, and the lower end of each of the third elastic members is connected with the pressing seat, so that each of the limiting caps abuts against the upper surface of the upper die seat, and when each of the limiting caps abuts against the upper surface of the upper die seat, the bottom surface of the stamping head is higher than the lower surface of the pressing seat.

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