Elastic sheet stamping die

Abstract

The utility model relates to the technical field of elastic piece machining equipment, in particular to an elastic piece stamping die which comprises a base combination and two clamping assemblies, the base combination comprises a base, a lower die base and an upper die base, the upper die base is fixedly installed on the base and located over the lower die base, the upper die base is installed on the base in a liftable mode, and the two clamping assemblies are arranged on the upper die base. The two clamping assemblies are located on the two sides of the lower die base correspondingly, each clamping assembly comprises a kidney-shaped conveying belt, a plurality of electric clamping jaws and a triggering piece used for selectively triggering the electric clamping jaws to act, the triggering pieces are fixedly arranged on the two sides of the lower die base, and each electric clamping jaw is installed on the kidney-shaped conveying belt and moves along with the kidney-shaped conveying belt. When the electric clamping jaw moves to one side of the trigger piece, a button of the electric clamping jaw makes contact with the trigger piece and is pressed to be closed, continuous feeding is achieved through the kidney-shaped conveying belt and the trigger piece, and production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of shrapnel processing equipment, and more particularly to a shrapnel stamping die. Background Art

[0002] Shrapnel is widely used in various contact devices, and a shrapnel stamping die is a processing equipment that obtains a shrapnel with a predetermined shape by stamping a thin plate with an upper die and a lower die.

[0003] There is a conventional shrapnel stamping die, as Figure 1 shown, including a lower die 90, a plurality of upper die punches 91 and two clamping assemblies 92. The upper die punches 91 can be lifted and lowered in the height direction to approach or move away from the lower die 90. The two clamping assemblies 92 are respectively located on both sides of the lower die 90. Each clamping assembly 92 includes a lead screw 921, a plurality of sliders 922, a plurality of jaws 923 and a rotary motor 924. The rotary motor 924 is fixedly connected to the lead screw 921. The slider 922 is in screw drive connection with the lead screw 921. Each slider 922 is provided with a jaw 923. It should be noted that during operation, the thin plate 93 is placed on the lower die 90, and then the jaws 923 are made to clamp the thin plate 93. When the rotary motor 924 rotates clockwise or counterclockwise, the jaws 923 move axially in the direction away from the lower die 90 and close to the feeding end, and drive the thin plate 93 to move towards the upper die punch 91. When the thin plate 93 is directly below the upper die punch 91, the upper die punch 91 moves downward to stamp and obtain the shrapnel. However: when the jaws 923 move to the position of the lower die 90 close to the discharging end, at this time, it is necessary to first release the thin plate 93 by the jaws 923, then rotate the rotary motor 924 in the reverse direction, and make the jaws 923 reset to the initial position before repeating the above processing steps. Obviously, the idle stroke of the reset of the jaws 923 greatly reduces the production efficiency, and the feeding is discontinuous, and there is room for further improvement.

[0004] Therefore, there is a need to provide a shrapnel stamping die that enables continuous feeding and helps improve production efficiency. Summary of the Utility Model

[0005] The main object of the present application is to provide a shrapnel stamping die. Among them, the shrapnel stamping die includes a body assembly and two clamping assemblies. The body assembly includes a base, a lower die base and an upper die base. The upper die base is fixedly installed on the base. The upper die base is located directly above the lower die base, and the upper die base is installed on the base in a liftable manner. The two clamping assemblies are respectively located on both sides of the lower die base. Each clamping assembly includes a waist-shaped conveyor belt, a plurality of electric grippers and a trigger for selectively triggering the action of the electric grippers. The trigger is fixedly arranged on both sides of the lower die base. Each electric gripper is installed on the waist-shaped conveyor belt and moves along with it. When the electric gripper moves to one side of the trigger, the button of the electric gripper contacts the trigger and is pressed to close, realizing the advantages of continuous feeding through the waist-shaped conveyor belt and the trigger, which helps to improve production efficiency.

[0006] Another object of the present application is to provide a shrapnel stamping die. Among them, the button of the electric gripper is a momentary switch. The trigger includes an inclined surface part and a horizontal part. A wedge block is provided on the button of the electric gripper. The wedge block is fixedly connected to the button of the electric gripper. The highest point of the inclined surface part is flush with the horizontal part. When the electric gripper moves to one side of the trigger, the wedge block contacts the inclined surface part and makes the button of the electric gripper receive a downward pressure. When the wedge block contacts the horizontal part, the button of the electric gripper closes. When the wedge block on the electric switch contacts the inclined surface part, the electric switch is pressed and the electric gripper is powered on.

[0007] In order to achieve at least one of the above invention objects, the present application provides a shrapnel stamping die, wherein the shrapnel stamping die includes:

[0008] A body assembly, the body assembly includes a base, a lower die base and an upper die base. The upper die base is fixedly installed on the base. The upper die base is located directly above the lower die base, and the upper die base is installed on the base in a liftable manner; and

[0009] Two clamping assemblies, the two clamping assemblies are respectively located on both sides of the lower die base. Each clamping assembly includes a waist-shaped conveyor belt, a plurality of electric grippers and a trigger for selectively triggering the action of the electric grippers. The trigger is fixedly arranged on both sides of the lower die base. Each electric gripper is installed on the waist-shaped conveyor belt and moves along with it. When the electric gripper moves to one side of the trigger, the button of the electric gripper contacts the trigger and is pressed to close.

[0010] In one or more embodiments of the present application, the button of the electric gripper is a momentary switch. The triggering member includes an inclined surface portion and a horizontal portion. A wedge block is provided on the button of the electric gripper, and the wedge block is fixedly connected to the button of the electric gripper. The highest point of the inclined surface portion is flush with the horizontal portion. When the electric gripper moves to one side of the triggering member, the wedge block contacts the inclined surface portion and causes the button of the electric gripper to receive a downward pressure. When the wedge block contacts the horizontal portion, the button of the electric gripper closes.

[0011] In one or more embodiments of the present application, a plurality of punching punches, a plurality of bending punches, and a plurality of blanking punches are liftably provided on the upper die base. The punching punches, the bending punches, and the blanking punches are sequentially spaced a predetermined distance in the length direction of the waist-shaped conveyor belt.

[0012] In one or more embodiments of the present application, the lower die base has a plurality of blanking holes.

[0013] In one or more embodiments of the present application, each of the blanking holes is a stepped hole. The shrapnel stamping die further includes a plurality of replacement rings, which correspond to the blanking holes one by one. Each replacement ring is detachably connected to the end with the larger hole diameter of the corresponding blanking hole.

[0014] In one or more embodiments of the present application, the seat body assembly further includes two limiting strips and a plurality of connecting pieces. The two limiting strips are respectively located on both sides of the lower die base, and the limiting strips are located above the lower die base. The two ends of each connecting piece are respectively fixedly connected to the limiting strip and the lower die base.

[0015] In one or more embodiments of the present application, each of the connecting pieces has a U-shaped groove.

[0016] In an embodiment of the present application, the shrapnel stamping die includes a seat body assembly and two clamping assemblies. The seat body assembly includes a base, a lower die base, and an upper die base. The upper die base is fixedly installed on the base. The upper die base is located directly above the lower die base and is liftably installed on the base. The two clamping assemblies are respectively located on both sides of the lower die base. Each clamping assembly includes a waist-shaped conveyor belt, a plurality of electric grippers, and a triggering member for selectively triggering the action of the electric grippers. The triggering member is fixedly provided on both sides of the lower die base. Each electric gripper is installed on the waist-shaped conveyor belt and moves therewith. When the electric gripper moves to one side of the triggering member, the button of the electric gripper contacts the triggering member and is pressed to close, achieving the advantages of continuous feeding through the waist-shaped conveyor belt and the triggering member, which helps to improve production efficiency. Description of the Drawings

[0017] These and / or other aspects and advantages of the present application will become more apparent and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, where:

[0018] Figure 1 The figure shows a schematic structural diagram of an existing shrapnel stamping die;

[0019] Figure 2 The figure shows a schematic structural diagram of a shrapnel stamping die of the present utility model at a certain angle;

[0020] Figure 3 The figure shows a schematic structural diagram of a shrapnel stamping die of the present utility model at another angle. Detailed implementation manners

[0021] The terms and words used in the following description and claims are not limited to the literal meanings, but are used only by the inventor to enable a clear and consistent understanding of the present application. Therefore, it is obvious to those skilled in the art that the following description of various embodiments of the present application is provided only for the purpose of illustration and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0022] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" cannot be understood as a limitation on the number.

[0023] Although ordinal numbers such as "first", "second", etc. will be used to describe various components, those components are not limited here. The term is only used to distinguish one component from another. For example, the first component can be called the second component, and similarly, the second component can also be called the first component without departing from the teachings of the inventive concept. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0024] The terms used here are only for the purpose of describing various embodiments and are not intended to be limiting. As used herein, the singular form is intended to also include the plural form unless the context clearly indicates otherwise. Additionally, it will be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of the stated features, numbers, steps, operations, components, elements, or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0025] Schematic shrapnel stamping die, refer to Figures 2 to 3 , A shrapnel stamping die according to a preferred embodiment of the present utility model includes a base body assembly 10 and two clamping assemblies 20.

[0026] Specifically, as Figure 2 and Figure 3 shown, the seat assembly 10 includes a base 101, a lower die holder 102, and an upper die holder 103. The upper die holder 103 is fixedly installed on the base 101. The upper die holder 103 is located directly above the lower die holder 102, and the upper die holder 103 is liftably installed on the base 101 by an oil cylinder. The cylinder block of the oil cylinder is fixedly installed on the base 101, and the push rod of the oil cylinder is fixedly connected to the upper die holder 103. The fixed connection method includes but is not limited to welding. When the oil cylinder operates, the upper die holder 103 approaches or moves away from the lower die holder 102.

[0027] In addition, as Figure 2 shown, the two clamping assemblies 20 are respectively located on both sides of the lower die holder 102. Each clamping assembly 20 includes a waist-shaped conveyor belt 201, a rotation driving device (not shown in the figure), two rotating rollers 202, and a plurality of electric grippers 203. The two rotating rollers 202 are rotatably arranged on both sides of the lower die holder 102 and are spaced apart by a predetermined distance. The waist-shaped conveyor belt 201 is wound around the outside of the two rotating rollers 202. One of the rotating rollers 202 is connected to the rotating shaft of the rotation driving device. Each electric gripper 203 is installed on the waist-shaped conveyor belt 201 and moves therewith.

[0028] It should be noted that when the rotation driving device operates, the waist-shaped conveyor belt 201 moves around the two rotating rollers 202 along the rotation direction of the rotating shaft of the rotation driving device, and drives the electric grippers 203 on the waist-shaped conveyor belt 201 to move. It should also be pointed out that the linear part area of the waist-shaped conveyor belt 201 is located on both sides of the lower die holder 102.

[0029] In addition, as Figure 2 shown, each clamping assembly 20 further includes a trigger member 204 for selectively triggering the operation of the electric gripper 203. The trigger member 204 is fixedly arranged on both sides of the lower die holder 102. When the electric gripper 203 moves to one side of the trigger member 204, the button of the electric gripper 203 contacts the trigger member 204 and is pressed to close.

[0030] It should be noted that when the electric gripper 203 moves to one side of the trigger 204 and contacts the trigger 204, the electric gripper 203 is powered on. It should also be pointed out that during production, the thin plate 40 is placed on the lower die base 102. When the electric gripper 203 moves to the linear part area of the waist-shaped conveyor belt 201, the side of the thin plate 40 extends into the space between the two jaws of the electric gripper 203. At this time, since the electric gripper 203 is powered on, the electric gripper 203 clamps the thin plate 40 and drives the thin plate 40 to move in the direction of the upper die base 103, realizing the pre-fixation of the thin plate 40 during stamping. After the thin plate 40 is punched into a shrapnel with a predetermined shape and specification, since the previously clamped electric gripper 203 no longer contacts the trigger 204 after linearly moving a predetermined distance, this electric gripper 203 loses power and releases the thin plate 40, realizing the separation of the electric gripper 203 and the thin plate 40. In addition, since a plurality of electric grippers 203 are arranged on the waist-shaped conveyor belt 201 at the same interval, another electric gripper 203 contacts the trigger 204 and clamps the thin plate 40. It can be seen that compared with the prior art where the electric gripper 203 needs to reset and generate an idle stroke after moving to the end, the embodiment of the present application realizes the continuous clamping or releasing of the thin plate 40 by the electric gripper 203 and continuously moves the thin plate 40 in the direction of the upper die base 103 by setting the waist-shaped conveyor belt 201 and the trigger 204, having the advantages of continuous feeding and helping to improve production efficiency.

[0031] Further, in order to make the button of the electric gripper 203 close when contacting the trigger 204 and disconnect when separating, and continuously clamp the thin plate 40 when the upper die base 103 approaches the lower die base 102, as Figure 2 shown, the button of the electric gripper 203 is a momentary switch. The trigger 204 includes an inclined surface portion 2041 and a horizontal portion 2042. A wedge block 2031 is provided on the button of the electric gripper 203. The wedge block 2031 is fixedly connected to the button of the electric gripper 203. One end of the wedge block 2031 facing away from the button of the electric gripper 203 has an inclined surface, and the highest point of the inclined surface portion 2041 is flush with the horizontal portion 2042.

[0032] It should be noted that when the electric gripper 203 moves to one side of the trigger 204, the wedge block 2031 contacts the inclined surface portion 2041 and a downward pressure is applied to the button of the electric gripper 203. When the wedge block 2031 contacts the horizontal portion 2042, since the highest point of the inclined surface portion 2041 is flush with the horizontal portion 2042, the button of the electric gripper 203 remains in the closed state. When the wedge block 2031 separates from the horizontal portion 2042, since the wedge block 2031 no longer receives a pressure and the button of the electric gripper 203 is a momentary switch, the corresponding electric gripper 203 is powered off and no longer clamps the thin plate 40, so that this electric gripper 203 moves with the kidney-shaped conveyor belt 201 to the curved part area until it returns to the straight part area near the lower die holder 102 side again.

[0033] Further, as Figure 2 shown, a plurality of punching punches 1031, a plurality of bending punches 1032 and a plurality of blanking punches 1033 are liftably provided on the upper die holder 103, and the punching punches 1031, the bending punches 1032 and the blanking punches 1033 are spaced apart by a predetermined distance in the length direction of the kidney-shaped conveyor belt 201 in sequence.

[0034] It should be noted that when the oil cylinder operates and drives the upper die holder 103 to move downward and approach the lower die holder 102, the punching punches 1031, the bending punches 1032 and the blanking punches 1033 all move downward and approach the lower die holder 102. A predetermined U-shaped hole is punched in the thin plate 40 through the punching punch 1031, the originally flat thin plate 40 inside the U-shaped hole is bent by the bending punch 1032 to form a bent part, and this part of the bent part is punched off by the blanking punch 1033 to obtain an elastic sheet.

[0035] Further, to realize the discharge of the waste material cut by punching, as Figure 3 shown, the lower die holder 102 has a plurality of blanking holes 1021, and the punched waste material directly discharges from the blanking holes 1021 under the action of gravity.

[0036] Further, to adapt to punches of various specifications and models, as Figure 3 shown, each of the blanking holes 1021 is a stepped hole, and the elastic sheet stamping die further includes a plurality of replacement rings 1022. The replacement rings 1022 correspond to the blanking holes 1021 one by one, and each replacement ring 1022 is detachably connected to the larger-diameter end of the corresponding blanking hole 1021 by means of bolt connection.

[0037] It should be noted that when replacing the punches of different specifications, only the replacement ring 1022 needs to be disassembled and adapted to the replacement ring 1022 with the corresponding inner hole diameter.

[0038] Furthermore, to provide guidance for the thin plate 40, as Figure 2 and Figure 3 shown, the seat body assembly 10 further includes two limiting strips 104 and a plurality of connecting pieces 105. The two limiting strips 104 are respectively located on both sides of the lower die base 102, and the limiting strips 104 are located above the lower die base 102. Each connecting piece 105 has a U-shaped groove 1051 with an opening. The two ends of each connecting piece 105 are respectively fixedly connected to the limiting strip 104 and the lower die base 102, and the fixed connection method includes but is not limited to welding.

[0039] It should be noted that when the thin plate 40 is fed onto the lower die base 102, the two side walls of the thin plate 40 are respectively close to the bottom wall of the corresponding U-shaped groove 1051, and the top surfaces of the two side walls of the thin plate 40 are close to the side walls of the U-shaped groove 1051, so as to realize the guidance of the thin plate 40.

[0040] Furthermore, when the electric gripper 203 does not clamp the thin plate 40, in order to feed the thin plate 40 towards the upper die base 103, the elastic sheet stamping die further includes a conveyor belt 30. The conveyor belt 30 is located at one end of the lower die base 102. The thin plate 40 is first placed on the conveyor belt 30. At this time, the two sides of the thin plate 40 extend into the U-shaped groove 1051. The conveyor belt 30 feeds the thin plate 40 towards the lower die base 102, and the U-shaped groove 1051 provides guidance for the thin plate 40.

[0041] In summary, the elastic sheet stamping die based on the embodiment of the present application is clarified, which provides advantages such as continuous feeding for the elastic sheet stamping die and helps to improve production efficiency.

[0042] It is worth mentioning that in the embodiment of the present application, the structure of the elastic sheet stamping die is simple, does not involve complex manufacturing processes and expensive materials, and has high economy. At the same time, for manufacturers, the elastic sheet stamping die provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0043] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from this principle, the embodiments of the present invention can have any deformation or modification.

Claims

1. A spring sheet stamping die, characterized in that: The spring sheet stamping die comprises A seat assembly, the seat assembly comprising a base, a lower die base and an upper die base, the upper die base is fixedly mounted on the base, the upper die base is located directly above the lower die base, and the upper die base is liftably mounted on the base; and Two clamping assemblies, the two clamping assemblies are respectively located on both sides of the lower mold base, each of the clamping assemblies includes a waist-shaped conveyor belt, a plurality of electric clamps and a trigger member for selectively triggering the action of the electric clamps, the trigger member is fixedly arranged on both sides of the lower mold base, each of the electric clamps is installed on the waist-shaped conveyor belt and moves with it, when the electric clamp moves to one side of the trigger member, the button of the electric clamp contacts the trigger member and is pressed to close.

2. The spring sheet stamping die according to claim 1, characterized in that: The button of the electric clamp is a momentary switch, and the trigger member includes an inclined portion and a horizontal portion. A wedge is provided on the button of the electric clamp, and the wedge is fixedly connected to the button of the electric clamp. The highest point of the inclined portion is flush with the horizontal portion. When the electric clamp moves to one side of the trigger member, the wedge contacts the inclined portion and causes the button of the electric clamp to be subjected to downward pressure. When the wedge contacts the horizontal portion, the button of the electric clamp is closed.

3. The spring sheet stamping die according to claim 2, characterized in that: The upper die base is provided with a plurality of punching punches, a plurality of bending punches and a plurality of shearing punches in a liftable manner, and the punching punches, the bending punches and the shearing punches are sequentially spaced apart by a predetermined distance in the length direction of the waist-shaped conveyor belt.

4. The spring sheet stamping die according to any one of claims 1 to 3, characterized in that: The lower die base has a plurality of blanking holes.

5. The spring sheet stamping die according to claim 4, characterized in that: Each of the blanking holes is a stepped hole, and the spring sheet stamping die also includes a plurality of replacement rings, which correspond to the blanking holes one by one, and each of the replacement rings is detachably connected to an end of the corresponding blanking hole with a larger aperture.

6. The spring sheet stamping die according to claim 5, characterized in that: The seat assembly also includes two limit bars and a plurality of connecting parts. The two limit bars are respectively located on both sides of the lower mold base, and the limit bars are located above the lower mold base. The two ends of each connecting part are respectively fixedly connected to the limit bars and the lower mold base.

7. The spring sheet stamping die according to claim 6, characterized in that: Each of the connecting pieces has a U-shaped groove.

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