Forming stamping die for arc extinguishing grid plate

Abstract

The forming stamping die comprises an upper die plate and a lower die plate, the upper die plate is connected with a notch stamping male die and an integral stamping male die, the lower die plate is connected with a notch stamping female die and an integral stamping female die, a first channel groove is formed in the integral stamping female die, one side of the first channel groove is communicated with the notch stamping female die, and the other side of the first channel groove is communicated with the integral stamping male die. A set of stamping grooves are formed in the first channel groove, and a first outlet groove is formed in one side in each stamping groove. The stamping die has the advantages that the notch stamping female die and the notch stamping male die are matched to punch a group of notches in the material belt, the material belt with the punched notches is conveyed into the first channel groove, and the spaced arc extinguishing grids are punched into the stamping groove through the punching cutter, so that waste materials are not generated when the arc extinguishing grids are formed in a stamping manner, the cost can be saved, and the production efficiency is improved. And then the arc chute entering the stamping groove can be pushed out of the first outlet groove through the first pushing mechanism, and the arc chute remaining in the first channel groove is pushed out of the first channel groove under the pushing of the rear material belt.

Description

Technical Field

[0001] This invention relates to the field of strip stamping technology, and in particular to a forming stamping die for arc-extinguishing grid plates. Background Technology

[0002] In the production of arc-extinguishing grids, a stamping die is usually used to stamp the strip material to form the arc-extinguishing grid. In the existing stamping die, when stamping the strip material to form the arc-extinguishing grid, the punch punches out the waste material, and the arc-extinguishing grid is connected to the strip material and then conveyed forward. Therefore, waste material is generated every time it is stamped. The waste material generated from stamping each arc-extinguishing grid will cause a waste of two cents. Since the required quantity of arc-extinguishing grids is very large, it will cause a lot of cost waste every year. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a forming stamping die for arc-extinguishing grids.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A forming stamping die for an arc-extinguishing grid includes an upper die and a lower die. A notched stamping punch and an integral stamping punch are connected sequentially on the upper die. A notched stamping die and an integral stamping die are connected on the lower die. A first channel groove is provided on the integral stamping die. One side of the first channel groove is connected to the notched stamping die. A set of stamping grooves are provided in the first channel groove. A first exit groove is provided on one side of each stamping groove.

[0005] Preferably, the notch stamping die includes a first base plate, a die plate connected to the upper side of the first base plate, a third channel groove provided on the upper side of the die plate, the third channel groove communicating with the first channel groove, a set of notch through grooves provided at the bottom of the third channel groove, and two rows of guide posts provided on both sides of the set of notch through grooves.

[0006] Preferably, the notched punch includes a second base plate, on which a pad is elastically supported by an elastic component. A first punch template is connected to the upper side of the pad. A rectangular groove is provided on the stamping surface of the first punch template. A first rectangular plate is connected to the bottom of the rectangular groove. A set of through grooves is provided on the first rectangular plate, which penetrates downward through the pad. A set of notched punches is connected to the second base plate. The notched punches can pass through the corresponding through grooves and punch into the corresponding notched through grooves.

[0007] Preferably, four guide posts are connected to the second base plate. The guide posts guide the pad and the convex template. A fixed limiting sleeve is fitted on each guide post to limit the convex template.

[0008] Preferably, a limiting plate is connected to the upper side of both sides of the groove opening of the third channel groove, and two positioning through grooves are provided on the limiting plate near the first channel groove. Two positioning blocks are connected to the first rectangular plate, and the positioning blocks can pass through the corresponding positioning through grooves.

[0009] Preferably, the integral stamping punch includes a third base plate, a second punch plate is connected to the upper side of the third base plate, a row of punching blades are evenly distributed on the second punch plate, a set of square through slots is provided on the third base plate, a corresponding punching blade is provided between every two square through slots, a set of clamping plates is connected to the third base plate, the clamping plates can pass through the corresponding square through slots, and the height of the punching blades is higher than the height of the clamping plates, so that the arc extinguishing grid sheet can be punched into the corresponding stamping slot through the punching blades.

[0010] Preferably, each of the pressing plates is provided with a circular groove, a pin is inserted into the circular groove, and an elastic element is connected between the pin and the bottom of the circular groove.

[0011] Preferably, a set of T-shaped grooves are provided on both sides of the first channel groove, and a T-shaped plate is slidably connected in the T-shaped groove. A third spring is connected between the T-shaped plate and the corresponding T-shaped groove. A third inclined surface is provided on the lower side of the side of the T-shaped plate that extends out of the T-shaped groove. The material strip is limited in the first channel groove by the third inclined surface. A chamfer is provided on the upper side of the side of the T-shaped plate that extends out of the T-shaped groove, and the width of the punching blade is greater than the width of the clamping plate.

[0012] Preferably, a first pushing mechanism is provided on one side of the integral stamping die, which can push the arc-extinguishing grid plate in the stamping groove into the corresponding first outlet groove; The first pushing mechanism includes a first movable plate. A set of first push plates are connected to the side of the first movable plate facing the integral stamping die. A set of rectangular through slots are provided on the side of the integral stamping die, and the rectangular through slots are connected to the corresponding stamping slots. The first push plates can pass through the corresponding rectangular through slots and can be inserted into the stamping slots. The upper side of the first push plates is flush with the bottom of the first channel slot. Two first vertical plates are provided on one side of the first movable plate. A first spring is connected between each first vertical plate and the first movable plate. A first guide rod is connected to the side of each first vertical plate. A corresponding first guide hole is provided on the first movable plate, and the first guide rod is inserted into the first guide hole. Two slots are provided on the first movable plate. A first inclined surface is provided on the upper side of each slot. Two insert rods are connected to the lower side of the upper die. A second inclined surface is provided on the lower side of each insert rod. When the insert rod is inserted into the corresponding slot, the second inclined surface cooperates with the first inclined surface to drive the first movable plate away from the integral stamping die.

[0013] The advantages of this invention are as follows: The forming stamping die for arc-extinguishing grids provided by this invention first punches a set of notches into the strip material through the cooperation of the notched stamping die and the notched stamping punch. Then, the strip material with the notches punched out is fed into the first channel groove. The spaced arc-extinguishing grids are punched into the stamping groove by the punching cutter, so that no waste is generated when the arc-extinguishing grids are stamped, which can save costs. Then, the first pushing mechanism can push the arc-extinguishing grids that have entered the stamping groove out of the first exit groove. The arc-extinguishing grids that remain in the first channel groove are pushed out of the first channel groove by the material strip behind. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the principle structure of a forming stamping die for an arc-extinguishing grid provided by the present invention; Figure 2 This is a structural diagram of the upper template; Figure 3 yes Figure 1 Enlarged schematic diagram of part A; Figure 4 This is a schematic diagram of the structure of a notched stamping punch; Figure 5 This is a schematic diagram of the integral stamping punch structure; Figure 6 This is a schematic diagram of the arc-extinguishing grid formed by stamping the material strip. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] like Figure 1 and Figure 2As shown, the present invention provides a forming stamping die for an arc-extinguishing grid, comprising an upper template 1 and a lower template 2, wherein a notched stamping punch 3 and an integral stamping punch 4 are sequentially connected on the upper template 1, and a notched stamping die 5 and an integral stamping die 6 are connected on the lower template 2.

[0018] like Figure 3 As shown, the notch stamping die 5 includes a first base plate 5.1, which is connected to the lower die plate 2. A die plate 5.2 is connected to the upper side of the first base plate 5.1. A third channel groove 5.3 is provided on the upper side of the die plate 5.2, which is connected to the first channel groove 8. A set of notch through grooves 5.4 is provided at the bottom of the third channel groove 5.4. Two rows of guide posts 5.5 are provided on both sides of the set of notch through grooves 5.4 to transport the material strip into the third channel groove 5.3 and guide the material strip through the two rows of guide posts 5.5.

[0019] like Figure 4 As shown, the notch stamping punch 3 includes a second base plate 3.1, which is connected to the upper template 1. An elastic support plate 3.2 is provided on the second base plate 3.1 via an elastic component. In this embodiment, the elastic component includes a set of springs. Four spring placement slots are provided on the side of the second base plate 3.1, and springs are vertically placed in the spring placement slots. One end of each spring contacts the pad 3.2, and the other end contacts the bottom of the spring placement slot. A first punch template 3.3 is connected to the upper side of the pad 3.2. A rectangular groove 3.4 is provided on the stamping surface of the first punch template 3.3. The bottom of the rectangular groove 3.4... A first rectangular plate 3.5 is connected, and a set of through grooves 3.6 is provided on the first rectangular plate 3.5. The shape of the through grooves 3.6 corresponds to the notch shape of the arc-extinguishing grid. The through grooves 3.6 penetrate downward through the pad 3.2. A set of notched punches 3.7 are connected on the second base plate 3.1. Since the arc-extinguishing grid requires 13 arc-extinguishing grid pieces to be riveted and fixed, the number of notched punches 3.7 in this embodiment is 13. The notched punches 3.7 can pass through the corresponding through grooves 3.6 and can punch into the corresponding notched through grooves 5.4, thereby punching notches into the arc-extinguishing grid pieces.

[0020] Four guide posts 3.11 are connected to the second base plate 3.1. The guide posts 3.11 guide the pad plate 3.2 and the convex template 3.3. A fixed limiting sleeve 3.12 is fitted on each guide post 3.11 to limit the convex template 3.3.

[0021] Limiting plates 5.6 are connected to the upper side of both sides of the groove opening of the third channel groove 5.3. The material strip can be limited in the third channel groove 5.3 by the two limiting plates 5.6. Two positioning through grooves 5.7 are provided on the limiting plate 5.6 near the first channel groove 8. Two positioning blocks 3.51 are connected to the first rectangular plate 3.5. The positioning blocks 3.51 can pass through the corresponding positioning through grooves 5.7, so that the positioning blocks 3.51 can be inserted into the notches punched on the material strip, thereby positioning the material strip.

[0022] A first channel groove 8 is provided on the integral stamping die 6. One side of the first channel groove 8 is connected to the third channel groove 5.3. A set of stamping grooves 9 is provided at the bottom of the first channel groove 8. In this embodiment, the number of stamping grooves 9 is 7, that is, 7 arc-extinguishing grids are stamped into the stamping grooves 9, and 6 arc-extinguishing grids remain at the bottom of the first channel groove 8, i.e. Figure 6 As shown, after a strip of material is stamped, two sets of arc-extinguishing grids are formed, one upper and one lower. Then, the six upper arc-extinguishing grids are pushed into the lower second channel groove 12 by the strip of material behind.

[0023] like Figure 5 As shown, the integral stamping punch 4 includes a third base plate 4.1, and a second punch plate 4.2 is connected to the upper side of the third base plate 4.1. A row of punching blades 4.3 is evenly distributed on the second punch plate 4.2. In this embodiment, there are 7 punching blades 4.3 in a row. The corresponding arc-extinguishing grid plates are punched into the stamping grooves 9 through the punching blades 4.3. A set of square through slots is provided on the third base plate 4.1. The corresponding punching blades 4.3 are provided between every two square through slots. A set of clamping plates 4.4 is connected to the third base plate 4.1. The clamping plates 4.4 can pass through the corresponding square through slots, and the height of the punching blades 4.3 is higher than the height of the clamping plates 4.4. The arc-extinguishing grid plates can be punched into the corresponding stamping grooves 9 through the punching blades 4.3.

[0024] Each clamping plate 4.4 is provided with a circular groove, and a pin 4.5 is inserted into the circular groove. An elastic element is connected between the pin 4.5 and the bottom of the circular groove. The pin 4.5 can prevent the arc-extinguishing grid from getting stuck between two adjacent punching blades 4.3, thereby lifting the arc-extinguishing grid and affecting the next punching.

[0025] like Figure 4As shown, a set of T-shaped grooves 8.1 are provided on both sides of the first channel groove 8. A T-shaped plate 8.2 is provided in the T-shaped groove 8.1. A third spring 8.3 is connected between the T-shaped plate 8.2 and the corresponding T-shaped groove 8.1. A third inclined surface is provided on the lower side of the side of the T-shaped plate 8.2 that extends out of the T-shaped groove 8.1. The material strip is limited in the first channel groove 8 by the third inclined surface. A chamfer is provided on the upper side of the side of the T-shaped plate 8.2 that extends out of the T-shaped groove 8.1. The width of the punching blade 4.3 is greater than the width of the clamping plate 4. When the punching blade 4.3 moves downward, it first contacts the chamfer, and then the two T-shaped plates 8.2 unfold to both sides, so that the punching blade 4.3 can continue to move downward to punch.

[0026] A first outlet groove 10 is provided on one side of each stamping groove 9. A first pushing mechanism 16 is provided on one side of the integral stamping die 6. The first pushing mechanism 16 can push the arc-extinguishing grid plate in the stamping groove 9 into the corresponding first outlet groove 10. The first pushing mechanism 16 includes a first moving plate 161. A set of first push plates 17 are connected to the side of the first moving plate 161 facing the integral stamping die 6. A set of rectangular through grooves is provided on the side of the integral stamping die 6. The rectangular through grooves are connected to the corresponding stamping grooves 9. The first push plates 17 can pass through the corresponding rectangular through grooves and can be inserted into the stamping grooves 9. The upper side of the first push plates 17 is flush with the bottom of the first channel groove 8. Two first vertical plates 18 are provided on one side of the first moving plate 16. A first spring 19 is connected between each first vertical plate 18 and the first moving plate 16. A first guide rod 20 is connected to the side of each first vertical plate 18. A corresponding first guide hole is provided on the first moving plate 161. The first guide rod 20 is inserted into the guide hole. Two slots 21 are provided on the first moving plate 161. A first inclined surface is provided on one side above each slot 21. Two insert rods 1.1 are connected to the lower side of the upper template 1. A second inclined surface is provided on one side below each insert rod 1.1. When the upper template 1 moves downward, the insert rods 1.1 first insert into the corresponding slots 21. The second inclined surface cooperates with the first inclined surface to move the first moving plate 161 away from the overall stamping die 6, causing the first moving plate 161 to move further away from the overall stamping die 6. 61 can drive the first push plate 17 to move backward, opening the slot of the stamping groove 9, so that the punching cutter 4.3 can press the arc-extinguishing grid into the stamping groove 9. When the upper template 1 moves upward, the insert rod 1.1 disengages from the slot 21, and under the elastic drive of the first spring 19, the first push plate 17 is reinserted into the stamping groove 9, pushing the arc-extinguishing grid in the stamping groove 9 out of the first outlet groove 10. At this time, the upper surface of the first push plate 17 is flush with the bottom of the first channel groove 8 so that the material strip can enter the first channel groove 8.

[0027] The device first punches a set of notches into the strip material by the cooperation of the notched stamping die 5 and the notched stamping punch 3. Then, the strip material with the notches punched out is fed into the first channel groove 8. The spaced arc-extinguishing grids are punched into the stamping groove 9 by the punching cutter 4.3, so that no waste is generated during the stamping of the arc-extinguishing grids, which can save costs. Then, the first pushing mechanism 16 can push the arc-extinguishing grids that have entered the stamping groove 9 out of the first exit groove 10. The arc-extinguishing grids left in the first channel groove 8 are pushed out of the first channel groove 8 by the material strip behind.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forming stamping die for an arc-extinguishing grid, comprising an upper die (1) and a lower die (2), characterized in that: A notched stamping punch (3) and an integral stamping punch (4) are connected sequentially on the upper template (1), and a notched stamping die (5) and an integral stamping die (6) are connected on the lower template (2). A first channel groove (8) is provided on the integral stamping die (6), and one side of the first channel groove (8) is connected to the notched stamping die (5). A set of stamping grooves (9) is provided in the first channel groove (8), and a first outlet groove (10) is provided on one side of each stamping groove (9).

2. The forming stamping die for an arc-extinguishing grid plate according to claim 1, characterized in that: The notched stamping die (5) includes a first base plate (5.1), a die plate (5.2) is connected to the upper side of the first base plate (5.1), a third channel groove (5.3) is provided on the upper side of the die plate (5.2), the third channel groove (5.3) is connected to the first channel groove (8), a set of notched through grooves (5.4) is provided at the bottom of the third channel groove (5.3), and two rows of guide posts (5.5) are provided on both sides of the set of notched through grooves (5.4).

3. A forming stamping die for an arc-extinguishing grid plate according to claim 2, characterized in that: The notched punch (3) includes a second base plate (3.1), on which an elastic support plate (3.2) is elastically supported by an elastic component. A first punch plate (3.3) is connected to the upper side of the support plate (3.2). A rectangular groove (3.4) is provided on the stamping surface of the first punch plate (3.3). A first rectangular plate (3.5) is connected to the bottom of the rectangular groove (3.4). A set of through grooves (3.6) is provided on the first rectangular plate (3.5). The through grooves (3.6) penetrate downward through the support plate (3.2). A set of notched punches (3.7) is connected to the second base plate (3.1). The notched punches (3.7) can pass through the corresponding through grooves (3.6) and can punch into the corresponding notched through grooves (5.4).

4. A forming stamping die for an arc-extinguishing grid plate according to claim 3, characterized in that: Four guide posts (3.11) are connected to the second base plate (3.1). The guide posts (3.11) guide the pad plate (3.2) and the convex template (3.3). A fixed limiting sleeve (3.12) is fitted on each guide post (3.11) to limit the convex template (3.3).

5. A forming stamping die for an arc-extinguishing grid plate according to claim 3, characterized in that: Limiting plates (5.6) are connected to the upper side of the slots on both sides of the third channel slot (5.3). Two positioning slots (5.7) are provided on the limiting plate (5.6) near the first channel slot (8). Two positioning blocks (3.51) are connected on the first rectangular plate (3.5). The positioning blocks (3.51) can pass through the corresponding positioning slots (5.7).

6. A forming stamping die for an arc-extinguishing grid plate according to claim 1, characterized in that: The integral stamping punch (4) includes a third base plate (4.1), a second punch plate (4.2) is connected to the upper side of the third base plate (4.1), a row of punching blades (4.3) are evenly distributed on the second punch plate (4.2), a set of square through slots is provided on the third base plate (4.1), and a corresponding punching blade (4.3) is provided between every two square through slots. A set of clamping plates (4.4) is connected to the third base plate (4.1), the clamping plates (4.4) can pass through the corresponding square through slots, and the height of the punching blades (4.3) is higher than the height of the clamping plates (4.4). The arc extinguishing grid sheet can be punched into the corresponding stamping groove (9) through the punching blades (4.3).

7. A waste-free stamping device for an arc-extinguishing grid plate in a relay according to claim 6, characterized in that: Each of the pressing plates (4.4) is provided with a circular groove, and a pin (4.5) is inserted into the circular groove. An elastic element is connected between the pin (4.5) and the bottom of the circular groove.

8. A waste-free stamping device for an arc-extinguishing grid plate in a relay according to claim 6, characterized in that: A set of T-shaped grooves (8.1) are provided on both sides of the first channel groove (8). A T-shaped plate (8.2) is slidably connected in the T-shaped groove (8.1). A third spring (8.3) is connected between the T-shaped plate (8.2) and the corresponding T-shaped groove (8.1). A third inclined surface is provided on the lower side of the side of the T-shaped plate (8.2) that extends out of the T-shaped groove (8.1). The material strip is limited in the first channel groove (8) by the third inclined surface. A chamfer is provided on the upper side of the side of the T-shaped plate (8.2) that extends out of the T-shaped groove (8.1). The width of the punching knife (4.3) is greater than the width of the pressing plate (4).

9. A waste-free stamping device for an arc-extinguishing grid plate in a relay according to claim 1, characterized in that: A first pushing mechanism (16) is provided on one side of the integral stamping die (6). The first pushing mechanism (16) can push the arc-extinguishing grid plate in the stamping groove (9) into the corresponding first outlet groove (10). The first pushing mechanism (16) includes a first moving plate (161). A set of first push plates (17) are connected to the side of the first moving plate (161) facing the integral stamping die (6). A set of rectangular through slots is provided on the side of the integral stamping die (6). The rectangular through slots are connected to the corresponding stamping grooves (9). The first push plates (17) can pass through the corresponding rectangular through slots and can be inserted into the stamping grooves (9). The upper side of the first push plates (17) is flush with the bottom of the first channel groove (8). Two first vertical plates (18) are provided on one side of the first moving plate (16). Each first vertical plate (18) is connected to the first moving plate (16) by a first push plate (17). A spring (19) is connected to a first guide rod (20) on the side of each first vertical plate (18). A corresponding first guide hole is provided on the first moving plate (161). The first guide rod (20) is inserted into the first guide hole. Two slots (21) are provided on the first moving plate (161). A first inclined surface is provided on the upper side of each slot (21). Two insert rods (1.1) are connected to the lower side of the upper template (1). A second inclined surface is provided on the lower side of each insert rod (1.1). When the insert rod (1.1) is inserted into the corresponding slot (21), the second inclined surface cooperates with the first inclined surface to drive the first moving plate (161) away from the integral stamping die (6).

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