Double-ring blanking die

Abstract

The utility model belongs to the stamping technical field relates to a kind of double washer blanking die.The double washer blanking die includes top piece rod, female die, stripper plate, male die seat, transition pin, die handle, piece rod, transition plate, upper die plate, male die, spring, piece stripper, upper male and female die, top piece plate, lower male and female die, top piece plate, lower die plate, top piece plate;Double washer blanking die is by male die, and upper male and female die is composed of upper die, and female die and lower male and female die is composed of lower die, when blanking, the inner shape of male die and lower male and female die blanking small washer inner hole, the shape of lower male and female die and the inner shape of upper male and female die blanking small washer shape and large washer inner hole;The shape of upper male and female die and female die blanking large washer shape, the shape of lower male and female die and the inner shape of upper male and female die blanking small washer blanking washer shape;One set of punch die processes two parts in one stroke;It has the advantages, such as low cost, high efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of stamping technology and relates to a double washer punching die. Background Technology

[0002] The existing tooling for machining gasket parts is a double-stage compound die for blanking and punching. It consists of components such as a punching punch (1), a blanking die (2), and a punch and die (3). A simplified diagram of the die is shown below. Figure 1 The inner shape of the punching punch (1) and the punch and die (3) is used to punch the inner hole of the washer, and the outer shape of the punch and die (3) is used to punch the outer shape of the blanking die (2).

[0003] The existing blanking and punching dual-sequence compound die can only process one type of part. For a series of washers with the same inner hole size as the outer dimensions of the small washer, two sets of dies are required for punching. The die investment is large, the production efficiency is low, and the leftover material of the inner shape of the large washer cannot be used and can only be regarded as process waste, resulting in low material utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a double washer punching die, which changes the composition and structure of conventional punching dies, and realizes a processing mode that can produce two types of washers in one punching. It utilizes the leftover material of the large washer to process the small washer, and has the advantages of low die investment cost, high parts production efficiency, and high material utilization rate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A double washer punching die includes an ejector rod (1), a die cavity (3), a release plate (4), a punch seat (6), a transition pin (7), a die shank (9), an ejector rod (10), a transition plate (12), an upper template (13), a punch (14), a spring (15), a release device (16), an upper punch and die cavity (17), an ejector plate (18), a lower punch and die cavity (19), an ejector plate (20), a lower template (21), and an ejector plate (18).

[0007] The die (3) is a hollow cylindrical structure, and the hollow cylindrical structure of the die (3) has screw (2) mounting holes and pin (20) mounting holes arranged around its perimeter;

[0008] The punch seat (6) is a circular plate structure with screw (5) through holes, transition pin (7) through holes, spring (15) mounting through holes and punch (14) stepped mounting holes located in the center of it.

[0009] The mold handle (9) is a flange-shaped structure with stepped screw (8) mounting holes arranged along the circumference of the flange, and a through hole for the molding rod (10) is set in the center of the flange;

[0010] The upper template (13) is a thick plate structure. The center of the upper surface is provided with a stepped countersunk hole for mounting the mold handle (9) and the transition plate (12). The upper countersunk hole is provided with screw (8) mounting holes around its perimeter. The lower countersunk hole is provided with a transition pin (7) through hole. The outer edge of the stepped countersunk hole is provided with a stripper screw (11) mounting hole. The lower surface of the upper template (13) is provided with a transition pin (7) through hole and a threaded hole for mounting and fixing the punch seat (6).

[0011] The upper punch and die (17) is a hollow flange structure. Its inner cavity shape matches the outer clearance of the unloader (16), and its outer shape matches the inner cavity clearance of the unloader plate (4). Screw (5) mounting holes are opened on the flange.

[0012] The lower punch and die (19) has a stepped shaft structure with a stepped hole in the center;

[0013] The lower template (21) is a thick plate structure with a through hole for the top rod (1) and a mounting hole for the screw (2) on it, and a material leakage hole in its center;

[0014] The punch and die holder (22) is a hollow cylindrical structure with a stepped lower punch and die (19) mounting hole in the center. It has through holes for the ejector rod (1), through holes for the screw (2), and mounting holes for the pin (20) around its perimeter.

[0015] The die (3) is located above the die holder (22), and the lower die (19) is placed in the cavity of the die (3) and the stepped lower die (19) mounting hole in the center of the die holder (22). The die (3) is fixed to the die holder (22) with a pin (20). The die (3), the die holder (22) and the lower die (19) are located above the lower template (21) and the lower die (19) is located at the center of the upper surface of the lower template (21). The screw (2) passes through the screw (2) mounting hole on the die (3), the screw (2) through hole on the die holder (22) and the screw (2) mounting hole on the lower template (21) to fix the three together.

[0016] The top plate (18) is embedded in the annular gap between the die (3) and the lower punch die (19). The top rod (1) passes through the top rod (1) through hole on the lower template (21) and the top rod (1) through hole on the punch die seat (22) and is threadedly connected to the top plate (18).

[0017] The punch (14) is fixed in the punch (14) mounting hole in the center of the punch seat (6); the ejector (16) is inserted into the punch (14) through its inner hole and then installed in the inner hole of the upper punch and die (17), and the upper punch and die (17) is connected to the lower part of the upper template (13) by screws (5);

[0018] The upper punch and die (17) are installed in the inner hole of the stripper plate (4) and fixed to the upper template (13) by the stripper screw (11);

[0019] After the transition pin (7) passes through the transition pin (7) through hole on the lower surface of the upper template (13) and the transition pin (7) through hole of the punch seat (6), the punch seat (6) is fixed below the upper template (13), and the lower end of the transition pin (7) contacts the unloader (16).

[0020] The transition plate (12) is placed in the lower countersunk hole on the upper template (13) and located at the upper end of the transition pin (7). The mold shank (9) is placed in the upper countersunk hole on the upper template (13) and connected to the upper template (13) by screws (8). The center hole of the mold shank (9) is fitted onto the ejector rod (10). The ejector rod (10) is threadedly connected to the transition plate (12) located below it. The screws (5) pass through the screw (5) mounting hole on the upper punch and die (17), the screw (5) through hole on the punch seat (6), and the threaded hole on the lower surface of the upper template (13) to fix the three together.

[0021] The spring (15) is placed in the spring mounting hole on the punch seat (6), and the stripper screw (11) passes through the spring (15) to fix it between the upper template (13) and the stripper plate (4).

[0022] Furthermore, the top rod (1) is a rod-shaped structure with a threaded top.

[0023] Furthermore, the unloading plate (4) is a hollow circular plate structure.

[0024] Furthermore, the punching rod (10) is a rod-shaped structure with a threaded lower end.

[0025] Furthermore, the transition plate (12) is a circular plate structure with a threaded hole in the center.

[0026] Furthermore, the top plate (18) is a hollow circular plate structure.

[0027] Furthermore, the unloader (16) has a hollow flange structure.

[0028] Furthermore, the punch (14) has a stepped shaft structure.

[0029] Furthermore, the lower punch and die (19) has a stepped shaft structure with a stepped hole in the center.

[0030] Furthermore, when the mold closes, the punch (14) pushes the material into the inner shape of the lower punch and die (19) to punch out the inner shape of the small washer. The outer shape of the lower punch and die (19) pushes the small washer of the annular part into the inner shape of the upper punch and die (17) to punch out the outer shape of the small washer and the inner hole of the large washer. At the same time, the outer shape of the upper punch and die (17) pushes the large washer of the annular part into the inner hole of the die (3) to complete one punching. After the mold is separated, the slide of the equipment returns to the top dead center, and the ejector rod (10) The upper end touches the ejector beam, and the thrust is transmitted from the small washer through the transition plate (12) and transition pin (7) to the unloader (16), pushing the small washer out of the inner cavity of the upper punch and die (17); the counter-pushing force of the machine tool air cushion acts on the ejector rod (1), and the pusher plate (18) pushes the large washer out of the inner cavity of the die (3) to complete the unloading; the remaining material is unloaded from the outer shape of the upper punch and die (17) by the stripper plate (4) using the elastic force of the spring (15) to complete one stamping stroke.

[0031] The advantages of this invention are as follows: the double-washer punching die consists of a punch 14 and an upper punch-and-die forming the upper die, and a die and a lower punch-and-die forming the lower die. During punching, the inner shape of the punch 14 and the lower punch-and-die 19 punches the inner hole of the small washer; the outer shape of the lower punch-and-die 19 and the inner shape of the upper punch-and-die 17 punch the outer shape of the small washer and the inner hole of the large washer; the outer shape of the upper punch-and-die and the die punches the outer shape of the large washer; and the outer shape of the lower punch-and-die and the inner shape of the upper punch-and-die punch punch the outer shape of the small washer. One set of dies processes two parts in one stroke. It has advantages such as low cost and high efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the tooling for machining existing gasket parts.

[0033] Figure 2 This is a schematic diagram of the double washer punching die of this utility model. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] The mold structure of this utility model is as follows: Figure 2 It includes an ejector rod (1), a die (3), a release plate (4), a punch seat (6), a transition pin (7), a die shank (9), an ejector rod (10), a transition plate (12), an upper template (13), a punch (14), a spring (15), a release device (16), an upper punch and die (17), an ejector plate (18), a lower punch and die (19), an ejector plate (20), a lower template (21), and an ejector plate (18).

[0036] The top rod (1) is a rod-shaped structure with a threaded top;

[0037] The die (3) is a hollow cylindrical structure, and the hollow cylindrical structure of the die (3) has screw (2) mounting holes and pin (20) mounting holes arranged around its perimeter;

[0038] The unloading plate (4) is a hollow circular plate structure;

[0039] The punch holder (6) is a circular plate structure with screw (5) through holes, transition pin (7) through holes, spring (15) mounting through holes and punch (14) stepped mounting holes located in its center.

[0040] The transition pin (7) has a rod-shaped structure;

[0041] The mold handle (9) is a flange-shaped structure with stepped screw (8) mounting holes arranged along the circumference of the flange, and a through hole for the molding rod (10) is set in the center of the flange;

[0042] The punching rod (10) is a rod-shaped structure with threads at the lower end;

[0043] The transition plate (12) is a circular plate structure with a threaded hole in the center;

[0044] The upper template (13) is a thick plate structure. A stepped countersunk hole for mounting the mold handle (9) and transition plate (12) is provided at the center of the upper plate. Screw (8) mounting holes are provided around the upper countersunk hole. A transition pin (7) through hole is opened in the lower countersunk hole. A stripper screw (11) mounting hole is provided on the outer edge of the stepped countersunk hole. A transition pin (7) through hole and a threaded hole for mounting and fixing the punch seat (6) are provided on the lower surface of the upper template (13).

[0045] The punch (14) has a stepped shaft structure;

[0046] The unloader (16) has a hollow flange-like structure;

[0047] The upper punch and die (17) is a hollow flange structure. Its inner cavity shape matches the outer clearance of the unloader (16), and its outer shape matches the inner cavity clearance of the unloader plate (4). Screw (5) mounting holes are opened on the flange.

[0048] The top plate (18) is a hollow circular plate structure;

[0049] The lower punch and die (19) has a stepped shaft structure with a stepped hole in the center;

[0050] The lower template (21) is a thick plate structure with a through hole for the top rod (1) and a mounting hole for the screw (2) on it, and a material leakage hole in its center;

[0051] The punch and die holder (22) is a hollow cylindrical structure with a stepped lower punch and die (19) mounting hole in the center. It has through holes for the ejector rod (1), through holes for the screw (2), and mounting holes for the pin (20) around its perimeter.

[0052] The die (3) is located above the die holder (22), and the lower die (19) is placed in the cavity of the die (3) and the central mounting hole of the die holder (22). The die (3) is fixed to the die holder (22) with a pin (20). The die (3), the die holder (22) and the lower die (19) are located above the lower template (21) and the lower die (19) is located at the center of the upper surface of the lower template (21). The screw (2) passes through the screw (2) mounting hole on the die (3), the screw (2) through hole on the die holder (22) and the screw (2) mounting hole on the lower template (21) to fix the three together.

[0053] The top plate (18) is embedded in the annular gap between the die (3) and the lower punch die (19). The top rod (1) passes through the top rod (1) through hole on the lower template (21) and the top rod (1) through hole on the punch die seat (22) and is threadedly connected to the top plate (18).

[0054] The punch (14) is fixed in the punch (14) mounting hole in the center of the punch seat (6); the ejector (16) is inserted into the punch (14) through the inner hole and then installed in the inner hole of the upper punch and die (17), and the upper punch and die (17) is connected to the lower part of the upper template (13) by screws (5);

[0055] The upper punch and die (17) are installed in the inner hole of the stripper plate (4) and fixed to the upper template (13) by the stripper screw (11).

[0056] The transition pin (7) passes through the transition pin (7) through the upper template (13) and the punch seat (6) to fix the punch seat (6) below the upper template (13). The lower end of the transition pin (7) contacts the unloader (16).

[0057] The transition plate (12) is placed in the lower countersunk hole on the upper template (13) and located at the upper end of the transition pin (7). The mold shank (9) is placed in the upper countersunk hole on the upper template (13) and connected to the upper template (13) by screws (8). The center hole of the mold shank (9) is fitted onto the ejector rod (10). The ejector rod (10) is threadedly connected to the transition plate (12) located below it. The screws (5) pass through the screw (5) mounting hole on the upper punch and die (17), the screw (5) through hole on the punch seat (6), and the threaded hole on the lower surface of the upper template (13) to fix the three together.

[0058] The spring (15) is placed in the spring mounting hole on the punch seat (6), and the stripper screw (11) passes through the spring (15) to fix it between the upper template (13) and the stripper plate (4);

[0059] When the mold closes, the punch (14) pushes the material into the inner shape of the lower punch and die (19), punching out the inner shape of the small washer. The outer shape of the lower punch and die (19) pushes the small washer of the ring part into the inner shape of the upper punch and die (17), punching out the outer shape of the small washer and the inner hole of the large washer. At the same time, the outer shape of the upper punch and die (17) pushes the large washer of the ring part into the inner hole of the die (3), completing one punching. After the mold is separated, the machine slide returns to the top dead center, and the upper end of the ejector rod (10) touches the ejector beam, transmitting the thrust from the small washer through the transition plate (12) and the transition pin (7) to the ejector (16), pushing the small washer out of the inner cavity of the upper punch and die (17). The counter-pressure of the machine tool air cushion acts on the ejector rod (1), and the ejector plate (18) pushes the large washer out of the inner cavity of the die (3), completing the unloading. The remaining material is removed from the outer shape of the upper punch and die (17) by the stripper plate (4) using the elastic force of the spring (15), thus completing one stamping stroke.

[0060] The advantages of this invention are as follows: the double-washer punching die consists of a punch 14 and an upper punch-and-die forming the upper die, and a die and a lower punch-and-die forming the lower die. During punching, the inner shape of the punch 14 and the lower punch-and-die 19 punches the inner hole of the small washer; the outer shape of the lower punch-and-die 19 and the inner shape of the upper punch-and-die 17 punch the outer shape of the small washer and the inner hole of the large washer; the outer shape of the upper punch-and-die and the die punches the outer shape of the large washer; and the outer shape of the lower punch-and-die and the inner shape of the upper punch-and-die punch punch the outer shape of the small washer. One set of dies processes two parts in one stroke. It has advantages such as low cost and high efficiency.

Claims

1. A double-ring blanking die characterized by, Includes ejector rod (1), die cavity (3), unloading plate (4), punch seat (6), transition pin (7), mold shank (9), ejector rod (10), transition plate (12), upper template (13), punch (14), spring (15), unloader (16), upper punch and die cavity (17), ejector plate (18), lower punch and die cavity (19), ejector plate (20), lower template (21), and ejector plate (18); The die (3) is a hollow cylindrical structure, and the hollow cylindrical structure of the die (3) has screw (2) mounting holes and pin (20) mounting holes arranged around its perimeter; The punch seat (6) is a circular plate structure with screw (5) through holes, transition pin (7) through holes, spring (15) mounting through holes and punch (14) stepped mounting holes located in the center of it. The mold handle (9) is a flange-shaped structure with stepped screw (8) mounting holes arranged along the circumference of the flange, and a through hole for the molding rod (10) is set in the center of the flange; The upper template (13) is a thick plate structure. The center of the upper surface is provided with a stepped countersunk hole for mounting the mold handle (9) and the transition plate (12). The upper countersunk hole is provided with screw (8) mounting holes around its perimeter. The lower countersunk hole is provided with a transition pin (7) through hole. The outer edge of the stepped countersunk hole is provided with a stripper screw (11) mounting hole. The lower surface of the upper template (13) is provided with a transition pin (7) through hole and a threaded hole for mounting and fixing the punch seat (6). The upper punch and die (17) is a hollow flange structure. Its inner cavity shape matches the outer clearance of the unloader (16), and its outer shape matches the inner cavity clearance of the unloader plate (4). Screw (5) mounting holes are opened on the flange. The lower punch and die (19) has a stepped shaft structure with a stepped hole in the center; The lower template (21) is a thick plate structure with a through hole for the top rod (1) and a mounting hole for the screw (2) on it, and a material leakage hole in its center; The punch and die holder (22) is a hollow cylindrical structure with a stepped lower punch and die (19) mounting hole in the center. It has through holes for the ejector rod (1), through holes for the screw (2), and mounting holes for the pin (20) around its perimeter. The die (3) is located above the die holder (22), and the lower die (19) is placed in the cavity of the die (3) and the stepped lower die (19) mounting hole in the center of the die holder (22). The die (3) is fixed to the die holder (22) with a pin (20). The die (3), the die holder (22) and the lower die (19) are located above the lower template (21) and the lower die (19) is located at the center of the upper surface of the lower template (21). The screw (2) passes through the screw (2) mounting hole on the die (3), the screw (2) through hole on the die holder (22) and the screw (2) mounting hole on the lower template (21) to fix the three together. The top plate (18) is embedded in the annular gap between the die (3) and the lower punch die (19). The top rod (1) passes through the top rod (1) through hole on the lower template (21) and the top rod (1) through hole on the punch die seat (22) and is threadedly connected to the top plate (18). The punch (14) is fixed in the punch (14) mounting hole in the center of the punch seat (6); the ejector (16) is inserted into the punch (14) through its inner hole and then installed in the inner hole of the upper punch and die (17), and the upper punch and die (17) is connected to the lower part of the upper template (13) by screws (5); The upper punch and die (17) are installed in the inner hole of the stripper plate (4) and fixed to the upper template (13) by the stripper screw (11); After the transition pin (7) passes through the transition pin (7) through hole on the lower surface of the upper template (13) and the transition pin (7) through hole of the punch seat (6), the punch seat (6) is fixed below the upper template (13), and the lower end of the transition pin (7) contacts the unloader (16). The transition plate (12) is placed in the lower countersunk hole on the upper template (13) and located at the upper end of the transition pin (7). The mold shank (9) is placed in the upper countersunk hole on the upper template (13) and connected to the upper template (13) by screws (8). The center hole of the mold shank (9) is fitted onto the ejector rod (10). The ejector rod (10) is threadedly connected to the transition plate (12) located below it. The screws (5) pass through the screw (5) mounting hole on the upper punch and die (17), the screw (5) through hole on the punch seat (6), and the threaded hole on the lower surface of the upper template (13) to fix the three together. The spring (15) is placed in the spring mounting hole on the punch seat (6), and the stripper screw (11) passes through the spring (15) to fix it between the upper template (13) and the stripper plate (4).

2. A double washer blanking die as claimed in claim 1, wherein, The top rod (1) is a rod-shaped structure with a threaded top.

3. A double washer blanking die according to claim 1 or 2, wherein The unloading plate (4) is a hollow circular plate structure.

4. A double washer punching die as described in claim 3, characterized in that, The punch rod (10) is a rod-shaped structure with threads at the lower end.

5. A double washer punching die as described in claim 1 or 4, characterized in that, The transition plate (12) is a circular plate structure with a threaded hole in the center.

6. A double washer punching die as described in claim 5, characterized in that, The top plate (18) is a hollow circular plate structure.

7. A double washer punching die as described in claim 1 or 6, characterized in that, The unloader (16) has a hollow flange structure.

8. A double washer punching die as described in claim 7, characterized in that, The punch (14) has a stepped shaft structure.

9. A double washer punching die as described in claim 1 or 8, characterized in that, The lower punch and die (19) has a stepped shaft structure with a stepped hole in the center.

10. A double washer punching die as described in claim 9, characterized in that, When the mold closes, the punch (14) pushes the material into the inner shape of the lower punch and die (19) to punch out the inner shape of the small washer. The outer shape of the lower punch and die (19) pushes the small washer of the ring part into the inner shape of the upper punch and die (17) to punch out the outer shape of the small washer and the inner hole of the large washer. At the same time, the outer shape of the upper punch and die (17) pushes the large washer of the ring part into the inner hole of the die (3) to complete one punching. After the mold is separated, the slide of the equipment returns to the top dead center, and the upper end of the ejector rod (10) When the ejector beam is touched, the thrust is transmitted from the small washer through the transition plate (12) and transition pin (7) to the ejector (16), pushing the small washer out of the inner cavity of the upper punch and die (17); the counter-pushing force of the machine tool air cushion acts on the ejector rod (1), and the ejector plate (18) pushes the large washer out of the inner cavity of the die (3) to complete the ejection; the remaining material is removed from the outer shape of the upper punch and die (17) by the stripper plate (4) using the elastic force of the spring (15) to complete one stamping stroke.

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