Stamping die for producing contact pins

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to a stamping die for producing contact pins, which comprises an upper die, a lower die, a material guide mechanism, a first positioning mechanism and a second positioning mechanism, the upper die comprises an upper cover plate, an upper die base, an upper base plate, an upper clamping plate, a stripper plate and an upper stripper plate. The lower die comprises a lower die plate, a lower cushion plate and a lower die base. A floating pin assembly and a blowing pin assembly are arranged on the lower die base, the blowing pin assembly comprises a second sealing piece and a blowing pin, and the blowing pin is connected with the second sealing piece through a second elastic piece; a first movable channel which is perpendicular to and penetrates through the lower die base, the lower cushion plate and the lower die plate is arranged on the lower die base, and a second elastic piece and a blowing pin are arranged in the first movable channel; according to the die, the low-speed wire feeding process is adopted for machining, the precision of the die can be guaranteed, the production efficiency can be improved, the problem that the size of the contact pin is too large or too small due to the fact that the material belt deviates in the machining process can be solved, and the machining precision and quality of the contact pin are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, and in particular relates to a stamping die for producing plug pins. Background Art

[0002] Pins are a common electronic component, which is mainly used to connect the signal or power on the electronic device to the external circuit. It is usually made of metal material and has the ability to be inserted and unplugged so that it can be inserted or unplugged from the connector. Pins play a vital role in electronic devices. They establish connections between circuit boards and transmit signals and power. At the same time, pins can also make circuit boards modular or replaceable, thus providing convenience for the maintenance and upgrading of electronic devices.

[0003] The processing technology of pins mainly includes turning, milling and stamping, among which stamping is a method of processing pins using a stamping machine. It can stretch, punch, bend and other operations on the pins to meet the different shape and size requirements of the pins. However, in the actual stamping process, it is easy for the pin size to be too large or too small, to be too different from the punch size, and the molded parts to be difficult to fall off. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a stamping die for producing plug pins, which solves the problem that the existing stamping die for producing plug pins is prone to offset during the processing, thereby causing large differences in the sizes of the plug pins, and the plug pin molded parts are not easy to fall off and the processing efficiency is low.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a stamping die for producing plug pins, including an upper die and a lower die, and a material guide mechanism, a first positioning mechanism and a second positioning mechanism are arranged between the upper die and the lower die;

[0006] The upper mold includes an upper cover plate, an upper mold base, an upper pad, an upper clamping plate, a backing plate and an upper stripping plate which are arranged in sequence; the lower mold includes a lower mold plate, a lower pad and a lower mold base which are arranged in sequence; the lower mold base is provided with a floating pin assembly and a blowing pin assembly, the blowing pin assembly includes a second sealing member and a blowing pin, and the blowing pin is connected to the second sealing member by a second elastic member; the lower mold base is provided with a first movable channel which is vertical and passes through the lower mold base, the lower pad and the lower mold plate, and the first movable channel is provided with a second elastic member and a blowing pin.

[0007] The beneficial effects of adopting the above technical solution are as follows: the punching die for producing plug pins can be used to continuously punch and form the plug pin material strip, and the material guide mechanism in the punching die can guide the processed material strip in advance so that the processed material strip is parallel to the punching die, and can also avoid the problem of the plug pin size being too large or too small due to the deviation of the material strip during the processing, thereby improving the processing accuracy and quality of the plug pin; and the first positioning mechanism can perform initial positioning of the upper die and the lower die during the punching die processing, and the second positioning mechanism can perform precise positioning, further improving the accuracy of the die and ensuring the plug pin The precision of needle size processing; the floating pin assembly can be used in conjunction with the material guide mechanism, which can not only support the material belt and facilitate feeding, but also facilitate material removal at the end of processing; and the blow pin assembly can, after processing, blow the stamped product from the lower die to the product collection point through the discharge pin, which is conducive to the unified recovery of the molded parts, effectively improving the removal rate of the pin molded parts, and can also clean the surface of the upper die, ensuring the precision and efficiency of the continuous stamping of the pin; in addition, the stamping die is processed using a slow wire process during the production process, which can not only ensure the precision of the die, but also improve production efficiency.

[0008] Furthermore, the upper pad is provided with a plurality of first trimming punches, punching punches, flattening punches, second trimming punches, third trimming punches, shaping punches and blanking punches; the plurality of first trimming punches, punching punches, flattening punches, second trimming punches, third trimming punches, shaping punches and blanking punches all extend out of the upper stripping plate;

[0009] A first trimming die, a punching die, a flattening die, a second trimming die, a third trimming die, a shaping die and a blanking die are arranged on the lower pad. The first trimming die, the punching die, the flattening die, the second trimming die, the third trimming die, the shaping die and the blanking die are arranged correspondingly to the first trimming punch, the punching punch, the flattening punch, the second trimming punch, the third trimming punch, the shaping punch and the blanking punch.

[0010] The beneficial effect of adopting the above technical scheme is: through the cooperation between the first trimming punch, punching punch, flattening punch, second trimming punch, third trimming punch, shaping punch and blanking punch and the first trimming die, punching die, flattening die, second trimming die, third trimming die, shaping die and blanking die respectively, multiple processes such as trimming, punching, flattening, shaping and blanking can be concentrated in one stamping die, which not only effectively improves the production efficiency but also ensures the production accuracy.

[0011] Furthermore, a spring pin is provided on one side of the punching punch, and a guide needle and an upper mold stripping assembly are provided on the other side thereof. The upper mold stripping assembly includes a first sealing member provided on the upper cover plate, a first elastic member provided above the first sealing member, and a ejection pin provided above the first elastic member.

[0012] The beneficial effects of adopting the above technical solution are as follows: one end of the spring pin is arranged on the upper stripping plate, and the other end passes through the upper stripping plate and supports the lower template, so that there is a certain gap between the lower mold and the upper mold, and the upper mold stripping component utilizes the elastic recovery ability of the first elastic member to achieve stable and reliable stripping processing of the molded part, which can greatly reduce the deformation of the processed workpiece, thereby improving the quality and processing efficiency of the pin molded part; and the upper mold stripping component is arranged on one side of the guide needle, which can prevent the guide needle from lifting the material strip when inserting the material strip, which is beneficial to subsequent processing.

[0013] Furthermore, the floating pin assembly is arranged perpendicularly and correspondingly to the guide needle, and includes a third sealing member and a floating pin. The floating pin and the third sealing member are connected by a third elastic member, and a first groove is arranged at the top thereof. A second movable channel is arranged perpendicularly on the lower die base and passes through the lower die base, the lower pad and the lower mold plate, and a third elastic member and a floating pin are arranged in the second movable channel.

[0014] The beneficial effect of adopting the above technical solution is: during the processing, through the coordinated use of the guide needle and the first groove, it can not only meet the floating material function, but also ensure that the material strip does not deviate left and right, thereby ensuring the processing accuracy of the pin.

[0015] Furthermore, the material guiding mechanism includes a material guiding plate, a material guiding channel is arranged along the length direction of the material guiding plate, a second groove is arranged in the material guiding channel, and the second groove is arranged corresponding to the first trimming die, the punching die, the flattening die, the second trimming die, the third trimming die, the shaping die and the blanking die.

[0016] The beneficial effects of adopting the above technical solution are as follows: the material strip can be automatically moved by the material guiding mechanism, and the material strip can be guided before it enters the mold so that the material strip is parallel to the mold, and the material strip can also be prevented from being carried out upward; the material guiding channel can be used for the passage of the material strip, and the second groove can provide working space for processing parts such as punches, thereby ensuring the processing accuracy of the pins and avoiding the problem of the pin size being too large or too small due to the deviation of the material strip during the processing.

[0017] Furthermore, the first positioning mechanism includes a first guide sleeve and a first guide column arranged on both sides of the upper cover plate end, and the first guide column is arranged on both sides of the lower mold base end; a first fixed stopper is arranged on the top of the first guide sleeve, and the first fixed stopper is arranged on the upper cover plate.

[0018] Furthermore, the second positioning mechanism includes a second guide sleeve and a second guide column, a fourth elastic member is arranged at the lower end of the second guide column, the fourth elastic member is arranged on the lower mold base, and its upper end is connected to the second guide column; a vertical and penetrating third movable channel is arranged on the lower pad and the lower mold plate, and a second guide column is arranged in the third movable channel; a second fixed stop block is arranged at the top end of the second guide sleeve, and the second fixed stop block is arranged on the upper mold base.

[0019] The beneficial effects of adopting the above technical solution are: the first guide sleeve and the first guide column can improve the closing stability between the upper die and the lower die, and roughly position the stamping die, while the second guide sleeve and the second guide column can accurately position the upper die and the lower die, thereby improving the processing dimensional accuracy of the pin.

[0020] In summary, the punching die for producing pins provided by the utility model has the following beneficial effects:

[0021] (1) Through the stamping die of the utility model, multiple processes such as trimming, punching, flattening, shaping and blanking can be concentrated in one stamping die, which not only effectively improves production efficiency, but also ensures production accuracy, avoids the problem of product size being too large or too small due to offset during the processing, and reduces the production cost of the equipment.

[0022] (2) The blow pin assembly provided in the stamping die of the utility model is conducive to the unified recovery of the molded parts, effectively improving the stripping rate of the pin molded parts, and can also clean the surface of the upper die, ensuring the accuracy and efficiency of the continuous stamping of the pins.

[0023] (3) The stamping die of the utility model is processed by a slow wire cutting process during the manufacturing process, which can not only ensure the accuracy of the die but also improve the production efficiency.

[0024] (4) The punching die of the utility model can not only realize operations such as punching and trimming of the workpiece, but also can shape the workpiece, thereby effectively improving the processing qualification rate of the workpiece and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of the lower mold of the utility model;

[0026] Figure 2 This is a front cross-sectional view of the utility model;

[0027] Figure 3 It is a front sectional view of the utility model.

[0028] Among them, 1. upper die; 11. upper cover plate; 12. upper die seat; 13. upper pad; 131. punching punch; 132. third trimming punch; 133. shaping punch; 14. upper clamp; 15. backing plate; 16. upper stripping plate; 17. spring pin; 18. guide pin; 2. lower die; 21. lower template; 22. lower pad; 221. punching die; 222. third trimming die; 223. shaping die; 23. lower die seat; 3. material guide mechanism; 31. material guide plate; 32. material guide channel; 4. first positioning mechanism; 41. first guide sleeve; 42 , the first guide column; 43, the first fixed stopper; 5, the second positioning mechanism; 51, the second guide sleeve; 52, the second guide column; 53, the third movable channel; 54, the second fixed stopper; 6, the floating pin assembly; 61, the third sealing member; 62, the floating pin; 63, the third elastic member; 64, the first groove; 65, the second movable channel; 7, the blowing pin assembly; 71, the second sealing member; 72, the blowing pin; 73, the second elastic member; 74, the first movable channel; 8, the upper mold stripping assembly; 81, the first sealing member; 82, the ejecting pin; 83, the first elastic member. DETAILED DESCRIPTION

[0029] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0030] like Figure 1 and Figure 2 As shown, the stamping die for producing plug pins provided by the utility model comprises an upper die 1 and a lower die 2, and a material guiding mechanism 3, a first positioning mechanism 4 and a second positioning mechanism 5 are arranged between the upper die 1 and the lower die 2; when in use, the material guiding mechanism 3 in the stamping die can guide the processed material strip in advance, so that the processed material strip is parallel to the stamping die, and can also avoid the problem of the plug pin size being too large or too small caused by the deviation of the material strip during the processing, thereby improving the processing accuracy and quality of the plug pin; and the first positioning mechanism 4 can perform initial positioning on the upper die 1 and the lower die 2 during the processing of the stamping die, and the second positioning mechanism 5 can perform precise positioning, further improving the accuracy of the die and ensuring the accuracy of the pin size processing; in addition, the stamping die is processed by a slow wire walking process during the production process, which can not only ensure the accuracy of the die, but also improve the production efficiency.

[0031] like Figure 2 and Figure 3As shown, the upper die 1 includes an upper cover plate 11, an upper die seat 12, an upper pad 13, an upper clamping plate 14, a stripping plate 15 and an upper stripping plate 16 which are arranged in sequence; the lower die 2 includes a lower die plate 21, a lower pad 22 and a lower die seat 23 which are arranged in sequence; the upper pad 13 is provided with a plurality of first trimming punches, a punching punch 131, a flattening punch, a second trimming punch, a third trimming punch 132, a shaping punch 133 and a blanking punch; if The first trimming punch, the punching punch 131, the flattening punch, the second trimming punch, the third trimming punch 132, the shaping punch 133 and the blanking punch all extend out of the upper stripping plate 16; the lower pad 22 is provided with a first trimming die, a punching die 221, a flattening die, a second trimming die, a third trimming die 222, a shaping die 223 and a blanking die, the first trimming die, the punching die 221, the flattening die, the third trimming die 222, the shaping die 223 and the blanking die. The second trimming die, the third trimming die 222, the shaping die 223 and the blanking die are all arranged correspondingly to the first trimming punch, the punching punch 131, the flattening punch, the second trimming punch, the third trimming punch 132, the shaping punch 133 and the blanking punch; through the stamping die for producing pins, the pin strip can be continuously stamped and formed, and through the cooperation between the first trimming punch, the punching punch 131, the flattening punch, the second trimming punch, the third trimming punch 132, the shaping punch 133 and the blanking punch and the first trimming die, the punching die 221, the flattening die, the second trimming die, the third trimming die 222, the shaping die 223 and the blanking die respectively, multiple processes such as trimming, punching, flattening, shaping and blanking can be concentrated in one stamping die, which not only effectively improves the production efficiency but also ensures the production accuracy.

[0032] like Figure 2 As shown, a floating pin assembly 6 and a blowing pin assembly 7 are provided on the lower die base 23, and the blowing pin assembly 7 includes a second sealing member 71 and a blowing pin 72, and the blowing pin 72 is connected to the second sealing member 71 by a second elastic member 73; a first movable channel 74 is provided on the lower die base 23 and vertically passes through the lower die base 23, the lower pad 22 and the lower template 21, and a second elastic member 73 and a blowing pin 72 are provided in the first movable channel 74; the floating pin assembly 6 can be used in conjunction with the material guiding mechanism 3, which can not only support the material belt and facilitate feeding, but also facilitate material removal at the end of processing; and the blowing pin assembly 7 can, after the processing is completed, blow the stamped product from the lower die 2 to the product collection point through the discharge pin, which is beneficial to the unified recovery of the molded parts, effectively improves the removal rate of the pin molded parts, and can also clean the surface of the upper die 1, ensuring the accuracy and efficiency of continuous stamping of the pins.

[0033] like Figure 2As shown, a spring pin 17 is arranged on one side of the punching punch 131, and a guide pin 18 and an upper mold stripping assembly 8 are arranged on the other side thereof. The upper mold stripping assembly 8 includes a first sealing member 81 arranged on the upper cover plate 11, a first elastic member 83 arranged above the first sealing member 81, and a ejection pin 82 arranged above the first elastic member 83; when in use, one end of the spring pin 17 is arranged on the upper stripping plate 16, and the other end passes through the upper stripping plate 16 and supports the lower mold plate 21, so that there is a certain gap between the lower mold 2 and the upper mold 1, and the upper mold stripping assembly 8 utilizes the elastic recovery ability of the first elastic member 83 to achieve stable and reliable stripping processing of the molded part, which can greatly reduce the deformation of the processed workpiece, thereby improving the quality and processing efficiency of the pin molded part; and the upper mold stripping assembly 8 is arranged on one side of the guide pin 18, which can prevent the guide pin 18 from lifting the material strip when inserting the material strip, which is beneficial to subsequent processing.

[0034] like Figure 2 As shown, the floating pin assembly 6 is perpendicular to and corresponding to the guide needle 18, and includes a third sealing member 61 and a floating pin 62. The floating pin 62 is connected to the third sealing member 61 by a third elastic member 63, and a first groove 64 is arranged at the top thereof; a second movable channel 65 is arranged vertically on the lower die base 23 and passes through the lower die base 23, the lower pad 22 and the lower template 21, and a third elastic member 63 and a floating pin 62 are arranged in the second movable channel 65; during the processing, the guide needle 18 and the first groove 64 are used in conjunction with each other, which can not only meet the floating function, but also ensure that the material strip does not deviate left and right, thereby ensuring the processing accuracy of the pin.

[0035] In the present invention, the first sealing member 81 , the second sealing member 71 and the third sealing member 61 are all stop screw plugs, and the first elastic member 83 , the second elastic member 73 and the third elastic member 63 are all round coil springs.

[0036] like Figure 1 As shown, the material guide mechanism 3 includes a material guide plate 31, and the material guide plate 31 is provided with a material guide channel 32 along the length direction. A second groove is provided in the material guide channel 32, and the second groove is correspondingly arranged with the first trimming die, the punching die 221, the flattening die, the second trimming die, the third trimming die 222, the shaping die 223 and the blanking die; the material guide mechanism 3 can realize the automatic movement of the material strip, and can guide the material strip before the material strip enters the mold so that the material strip is parallel to the mold, and can also prevent the material strip from being carried out upward; the material guide channel 32 can be used for the material strip to pass, and the second groove can provide a working space for processing parts such as a punch, so as to ensure the processing accuracy of the pin and avoid the problem of the pin size being too large or too small due to the deviation of the material strip during the processing.

[0037] like Figure 2As shown, the first positioning mechanism 4 includes a first guide sleeve 41 and a first guide column 42 arranged on both sides of the end of the upper cover plate 11, and the first guide column 42 is arranged on both sides of the end of the lower die base 23; a first fixed stop block 43 is arranged on the top of the first guide sleeve 41, and the first fixed stop block 43 is arranged on the upper cover plate 11; the first guide sleeve 41 and the first guide column 42 can improve the closing stability between the upper die 1 and the lower die 2, and perform rough positioning of the stamping die.

[0038] The second positioning mechanism 5 includes a second guide sleeve 51 and a second guide column 52. A fourth elastic member is arranged at the lower end of the second guide column 52. The fourth elastic member is arranged on the lower mold base 23, and its upper end is connected to the second guide column 52. A vertical and penetrating third movable channel 53 is arranged on the lower pad 22 and the lower mold plate 21, and the second guide column 52 is arranged in the third movable channel 53. A second fixed stopper 54 is arranged at the top of the second guide sleeve 51, and the second fixed stopper 54 is arranged on the upper mold base 12. The upper mold 1 and the lower mold 2 can be accurately positioned by the second guide sleeve 51 and the second guide column 52, thereby improving the processing size accuracy of the pin.

[0039] In summary, the stamping die for producing plug pins provided by the utility model is manufactured by the wire-cutting process, which not only reduces the production cost, but also can realize the continuous production of plug pins. It can concentrate multiple processes such as trimming, punching, flattening, shaping and blanking in one stamping die, which not only effectively improves the production efficiency, but also ensures the production accuracy, avoids the problem of product size being too large or too small due to offset during the processing, and the blow pin assembly 7 is conducive to the unified recovery of the molded parts, effectively improves the stripping rate of the plug pin molded parts, and can also clean the surface of the upper mold 1, ensuring the accuracy and efficiency of the continuous stamping of the plug pins.

Claims

1. A stamping die for producing a plug pin, comprising an upper die (1) and a lower die (2), characterized in that: A material guiding mechanism (3), a first positioning mechanism (4) and a second positioning mechanism (5) are provided between the upper mold (1) and the lower mold (2); The upper mold (1) comprises an upper cover plate (11), an upper mold base (12), an upper pad (13), an upper clamping plate (14), a backing plate (15) and an upper stripping plate (16) which are arranged in sequence; the lower mold (2) comprises a lower mold plate (21), a lower pad (22) and a lower mold base (23) which are arranged in sequence; a floating pin assembly (6) and a blow pin assembly (7) are arranged on the lower mold base (23); the blow pin assembly (7) comprises a second sealing member (71) and a blow pin (72); the blow pin (72) and the second sealing member (71) are connected via a second elastic member (73); a first movable channel (74) is arranged on the lower mold base (23) which is vertical and runs through the lower mold base (23), the lower pad (22) and the lower mold base (21); the second elastic member (73) and the blow pin (72) are arranged in the first movable channel (74).

2. The stamping die for producing pins according to claim 1, characterized in that: The upper pad (13) is provided with a plurality of first trimming punches, punching punches (131), flattening punches, second trimming punches, third trimming punches (132), shaping punches (133) and blanking punches; the plurality of first trimming punches, punching punches (131), flattening punches, second trimming punches, third trimming punches (132), shaping punches (133) and blanking punches all extend out of the upper stripping plate (16); The lower pad (22) is provided with a first trimming die, a punching die (221), a flattening die, a second trimming die, a third trimming die (222), a shaping die (223) and a blanking die. The first trimming die, the punching die (221), the flattening die, the second trimming die, the third trimming die (222), the shaping die (223) and the blanking die are all arranged correspondingly to the first trimming convex die, the punching convex die (131), the flattening convex die, the second trimming convex die, the third trimming convex die (132), the shaping convex die (133) and the blanking convex die.

3. The stamping die for producing pins according to claim 2, characterized in that: A spring pin (17) is provided on one side of the punching punch (131), and a guide needle (18) and an upper mold stripping assembly (8) are provided on the other side thereof. The upper mold stripping assembly (8) comprises a first sealing member (81) provided on the upper cover plate (11), a first elastic member (83) provided above the first sealing member (81), and a ejection pin (82) provided above the first elastic member (83).

4. The stamping die for producing pins according to claim 2, characterized in that: The floating pin assembly (6) is arranged perpendicularly and correspondingly to the guide needle (18), and comprises a third sealing member (61) and a floating pin (62). The floating pin (62) is connected to the third sealing member (61) via a third elastic member (63), and a first groove (64) is arranged at the top thereof. A second movable channel (65) is arranged perpendicularly and passes through the lower die base (23), the lower pad (22) and the lower die plate (21) on the lower die base (23), and a third elastic member (63) and a floating pin (62) are arranged in the second movable channel (65).

5. The stamping die for producing pins according to claim 1, characterized in that: The material guiding mechanism (3) comprises a material guiding plate (31), the material guiding plate (31) being provided with a material guiding channel (32) along the length direction, the material guiding channel (32) being provided with a second groove, the second groove being provided correspondingly to the first trimming die, the punching die (221), the flattening die, the second trimming die, the third trimming die (222), the shaping die (223) and the blanking die.

6. The stamping die for producing pins according to claim 1, characterized in that: The first positioning mechanism (4) comprises a first guide sleeve (41) and a first guide column (42) arranged on both sides of the end of the upper cover plate (11), wherein the first guide column (42) is arranged on both sides of the end of the lower die seat (23); a first fixed stopper (43) is arranged at the top end of the first guide sleeve (41), and the first fixed stopper (43) is arranged on the upper cover plate (11).

7. The stamping die for producing pins according to claim 1, characterized in that: The second positioning mechanism (5) comprises a second guide sleeve (51) and a second guide column (52); a fourth elastic member is arranged at the lower end of the second guide column (52); the fourth elastic member is arranged on the lower die base (23), and the upper end of the fourth elastic member is connected to the second guide column (52); a third movable channel (53) is arranged vertically and penetrating the lower pad (22) and the lower die plate (21); the second guide column (52) is arranged in the third movable channel (53); a second fixed stopper (54) is arranged at the top end of the second guide sleeve (51); the second fixed stopper (54) is arranged on the upper die base (12).

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