High-precision plug-in connector forming die

Abstract

The invention relates to the technical field of forming dies, in particular to a high-precision plug-in type connector forming die which comprises a base, a lower die holder is fixedly mounted at the top end of the base, a lower die plate is arranged above the lower die holder, an upper die plate is arranged above the lower die plate, a discharging plate is arranged above the upper die plate, and the lower die holder is fixedly mounted at the top end of the base. An upper die base is arranged above the discharging plate, and a telescopic mechanism is arranged between the upper die base and the lower die base. The lower end of the upper die base is fixedly connected with a plurality of positioning bolts, and positioning holes corresponding to the positioning bolts in position and number are formed in the upper die plate and the lower die plate. Through the combined design of precise positioning, stable fixing, dynamic supporting and efficient discharging, the stamping die keeps high precision and high reliability in high-speed production, the material strip positioning and feeding precision can be guaranteed, the blanking quality can be effectively improved, the service life of the die can be effectively prolonged, meanwhile, waste is prevented from being brought out, the die is prevented from being damaged, and the production efficiency is improved. Therefore, the production cost is reduced and the productivity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forming die, in particular to a high-precision plug-in connector forming die. BACKGROUND

[0002] As the core "connecting bridge" in the electronic circuit system, the connector is an indispensable basic electronic component for various types of electronic equipment. It is not a simple connection component, but a key function that bears the electrical signal transmission and power supply between circuit modules, while ensuring the stability, anti-interference and durability of the connection, directly determining the operation efficiency and reliability of the electronic system. From daily scenarios such as smartphones and laptops, to industrial field automation control equipment and new energy vehicle electronic control systems, to high-end aerospace precision instruments and medical diagnostic equipment, the connector plays the role of "nerve hub". If there is no suitable connector, or its performance is not up to standard, it may cause signal interruption and device lag, or even cause the entire electronic equipment to malfunction. Therefore, it is not only the basic support for the design and production of electronic equipment, but also the key link to ensure the long-term stable operation of the equipment, and it has an irreplaceable position in the electronic industry system.

[0003] The connector needs to use a forming die in the manufacturing process. However, the existing forming die often causes the material strip to deviate during feeding and mold closing due to insufficient positioning accuracy, which can easily cause the upper and lower molds to not close accurately, thereby affecting the size accuracy and yield of the stamping part (connector). Some molds rely on cylindrical positioning structures, which have limited impact and vibration resistance, and are difficult to maintain stability under high-speed stamping conditions, which can easily cause mold misalignment and stamping part scrap. At the same time, the material strip can easily deform due to gravity or stamping force during stamping, and lacks effective support and buffering measures, which affects the positioning accuracy between continuous feeding and processes. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and provide a high-precision plug-in connector forming die.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: A high-precision plug-in connector forming die, comprising a base, a lower die seat is fixedly installed at the top end of the base, a lower die plate is arranged above the lower die seat, an upper die plate is arranged above the lower die plate, a discharge plate is arranged above the upper die plate, an upper die seat is arranged above the discharge plate, and an extension mechanism is arranged between the upper die seat and the lower die seat. The lower die plate upper end surface one side is placed with material strip, the other side is fixedly installed with positioning pressing plate, the upper die base lower end is fixedly connected with a plurality of positioning bolts, the upper die plate and the lower die plate are all provided with positioning hole which corresponds to the position and quantity of the positioning bolt, the upper die plate lower end surface is fixedly installed with a plurality of conical, the conical is aligned with the hole of the positioning pressing plate. The first buffer mechanism is arranged between the lower die plate and the lower die base, and the second buffer mechanism is arranged between the upper die base and the upper die plate.

[0006] Preferably, the telescopic mechanism includes a hydraulic device fixedly installed at the top of the lower die base, a sleeve is installed inside the hydraulic device, and a hydraulic rod is fixedly installed at the lower end of the upper die base.

[0007] Preferably, the lower end of the conical is designed as a conical surface to improve positioning accuracy.

[0008] Preferably, a plurality of movable supporting blocks are installed inside the lower die plate, and the supporting blocks are located below the material strip stamping position.

[0009] Preferably, the material punching mechanism includes a plurality of connecting rods fixedly connected to the lower end of the upper die base, and each two connecting rods form a group, the lower end of the connecting rod of each group is movably installed with a cutting knife, the cutting knife movably penetrates the upper die plate and the material discharging plate, an adjusting assembly is arranged between the top end of the cutting knife and the upper die base, and a reset assembly is arranged on the side surface of the cutting knife.

[0010] Preferably, the adjusting assembly includes an insertion slot arranged between the top end of the cutting knife and the lower end of the upper die base, an adjusting rod is movably inserted into the insertion slot, and the front end of the adjusting rod is designed as a wedge.

[0011] Preferably, the reset assembly includes a reset spring installed on the side surface of the cutting knife, and the lower end of the reset spring is fixedly connected to the upper end surface of the upper die plate.

[0012] Preferably, the first buffer mechanism includes a plurality of first die springs elastically connected between the lower die plate and the lower die base, and the first die springs are used to provide elastic force to automatically separate the cutting knife and the material after the cutting knife completes the punching and shearing.

[0013] Preferably, the second buffer mechanism includes a plurality of second die springs elastically connected between the upper die base and the upper die plate, a through slot is arranged on the material discharging plate for the second die spring to pass through, and a section of the second die spring located inside the through slot is fixedly connected with the inner wall of the through slot.

[0014] Preferably, a discharging port is arranged on one side of the upper end of the lower die base, and the discharging port is used for discharging the punched material.

[0015] Compared with the prior art, the application has the advantages that: 1、The application realizes accurate positioning of the material strip and accurate matching of the upper and lower mold plates through the cooperation of the positioning pin and the cone, the positioning pin can control the position error of the material strip within ±0.1 mm, ensures stable mold closing during high-speed stamping, and the cone positioning has higher precision and tighter cooperation effect than the cylindrical positioning, can resist impact and vibration, thereby effectively improving the reliability and precision in the stamping process, and meets the quality demand for high-precision stamping parts.

[0016] 2、The cone in the application not only plays a positioning role but also further fixes the material strip, keeps the material strip stable in the non-stamping area, and the positioning pressure plate cooperates with the cone to effectively inhibit the displacement of the material strip, ensures smooth feeding and forming process, after the upper and lower mold plates are completely matched, the adjusting rod cooperates with the return spring to realize accurate adjustment of the punch cutting material, so that the stamping precision and pressure are reasonably controlled, the structure can reduce the forming springback and ensure the contact consistency, thereby improving the product quality and mold life.

[0017] 3、The movable support block in the stamping process provides stable support for the material strip to prevent it from being deformed due to stamping force or self-weight, especially for thin plate materials, the support block can dynamically adjust the height to ensure feeding accuracy and process positioning accuracy, at the same time, it can absorb impact force to reduce the vibration of the mold and equipment during stamping, after stamping is completed, the support block lifts the material strip to separate it from the concave die, reduces the friction resistance to improve the demolding efficiency, thereby ensuring the continuous and smooth feeding process, and meeting the mass production demand.

[0018] 4、The first mold spring provides elastic force to automatically separate the punch from the material after punch cutting and shares the impact force, protecting the lower mold plate basic structure, the second mold spring drives the unloading plate to press the material before stamping to avoid displacement and ensure smooth section, after stamping is completed, the unloading plate timely peels off the workpiece or waste to prevent material carrying, avoids feeding interference and mold damage, the cooperation of the two can ensure smooth stamping process, thereby improving the durability of the mold and stable production capacity of the product.

[0019] In summary, the application realizes accurate positioning, stable fixing, dynamic support and efficient unloading through the combined design, so that the stamping die maintains high precision and high reliability in high-speed production, not only ensures the positioning and feeding accuracy of the material strip, but also effectively improves the blanking quality and mold life, while avoiding waste carrying and mold damage, thereby reducing production cost and improving production capacity. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an overall axonometric structure schematic diagram of a high-precision plug-in connector forming die.

[0021] Figure 2A high-precision plug-in connector forming die hydraulic device and sleeve structure schematic diagram.

[0022] Figure 3 A high-precision plug-in connector forming die positioning pin and first die spring structure schematic diagram.

[0023] Figure 4 A high-precision plug-in connector forming die second die spring and cone structure schematic diagram.

[0024] Figure 5 A high-precision plug-in connector forming die connecting rod and knife structure schematic diagram.

[0025] Figure 6 A high-precision plug-in connector forming die adjusting rod and return spring structure schematic diagram.

[0026] In the figure: 1 base, 2 lower die seat, 3 lower die plate, 4 upper die plate, 5 stripper plate, 6 upper die seat, 7 discharge port, 8 hydraulic device, 9 sleeve, 10 hydraulic rod, 11 material strip, 12 support block, 13 first die spring, 14 positioning pin, 15 second die spring, 16 cone, 17 connecting rod, 18 knife, 19 return spring, 20 adjusting rod, 21 insertion slot, 22 positioning plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0028] Reference Figures 1 to 6 A high-precision plug-in connector forming die, comprising a base 1, a lower die seat 2 is fixedly installed at the top end of the base 1, a lower die plate 3 is arranged above the lower die seat 2, a plurality of first die springs 13 are elastically connected between the lower die plate 3 and the lower die seat 2, the first die springs 13 are used to provide elastic force to automatically separate the knife 18 from the material after the knife 18 is punched and sheared, indirectly improve the strength of the lower die plate 3, absorb vibration, buffer the impact force borne by the lower die plate 3, and protect the die base structure.

[0029] The top end of the lower die seat 2 is fixedly provided with a hydraulic device 8, a sleeve 9 is arranged in the hydraulic device 8, an upper die plate 4 is arranged above the lower die plate 3, a stripper plate 5 is arranged above the upper die plate 4, an upper die seat 6 is arranged above the stripper plate 5, a hydraulic rod 10 is fixedly arranged at the lower end of the upper die seat 6, the lower end of the hydraulic rod 10 is arranged in the corresponding sleeve 9, a plurality of second die springs 15 are elastically connected between the upper die seat 6 and the upper die plate 4, a through slot is arranged in the stripper plate 5 and the second die spring 15 passes through the through slot, and a section of the second die spring 15 inside the through slot is fixedly connected with the inner wall of the through slot.

[0030] The lower end of the upper die seat 6 is fixedly connected with a plurality of connecting rods 17, the connecting rods 17 are arranged in pairs, the lower end of each group of connecting rods 17 is movably provided with a knife 18, the knife 18 movably penetrates the upper die plate 4 and the stripper plate 5, an insertion slot 21 is arranged between the top end of the knife 18 and the lower end of the upper die seat 6, an adjusting rod 20 is movably arranged in the insertion slot 21, the front end of the adjusting rod 20 is designed in a wedge shape, the height of the knife 18 can be adjusted by controlling the depth of the adjusting rod 20 inserted into the insertion slot 21, a return spring 19 is arranged on one side surface of the knife 18, and the lower end of the return spring 19 is fixedly connected with the upper end surface of the upper die plate 4.

[0031] The upper end surface of the lower die plate 3 is placed with a material strip 11 on one side, and a positioning pressing plate 22 is fixedly arranged on the other side, a plurality of positioning pins 14 are fixedly connected with the lower end of the upper die seat 6, positioning holes corresponding in position and number to the positioning pins 14 are arranged in the upper die plate 4 and the lower die plate 3, and a plurality of conical bodies 16 are fixedly arranged on the lower end surface of the upper die plate 4 and aligned with the holes in the positioning pressing plate 22.

[0032] A plurality of movable supporting blocks 12 are arranged in the lower die plate 3, the supporting blocks 12 are arranged below the stamping position of the material strip 11, the supporting blocks 12 can provide stable supporting force for the material strip 11 during stamping, and the supporting blocks 12 can also play a buffering role during stamping, absorbing the impact force generated when the punch contacts the material strip 11 and reducing the vibration of the die and the press.

[0033] A discharge port 7 is arranged on one side of the upper end of the lower die seat 2, and the discharge port 7 is used for discharging the material.

[0034] In use, the strip 11 is placed in the corresponding slot of the lower die plate 3, the hydraulic device 8 is installed around the lower die holder 2, the sleeve 9 is installed inside the hydraulic device 8, the sleeve 9 is installed corresponding to the hydraulic rod 10 around the upper die holder 6, when the hydraulic rod 10 moves downward to shrink under the drive of the hydraulic device 8, the upper die plate 4 and the lower die plate 3 begin to match, the upper die plate 4 is fixed in the upper die holder 6 through the connecting rod 17, as the upper die holder 6 begins to approach the strip 11, the positioning pin 14 arranged on the upper die holder 6 is aligned with the positioning hole on the upper die plate 4 and the lower die plate 3, the cone 16 arranged on the upper die plate 4 is aligned with the hole of the positioning plate 22 on the lower die plate 3, finally the positioning pin 14 and the cone 16 are completely inserted, and the upper die plate 4 and the lower die plate 3 completely match, and the design has the following advantages.

[0035] Firstly, the positioning pin 14 can accurately limit the position of the strip 11, in the stamping operation with a precision requirement of ±0.1mm, the positioning deviation of the strip 11 can be controlled in a very small range, and in high-speed stamping of a large stamping die, the upper and lower die holders can be accurately matched; Secondly, in the stamping of the strip 11, the positioning pin 14 can effectively fix the upper die plate 4 and the lower die plate 3 to ensure stable butt joint during stamping, so as to avoid scrap stamping parts due to displacement, thereby reducing production cost; Thirdly, the positioning of the cone 16 adopts a tight design of conical surface matching, which can achieve high positioning accuracy, which is difficult to achieve by ordinary cylindrical positioning, and this accuracy is very important for high requirement stamping parts; Fourthly, the conical surface positioning structure of the cone 16 is stable, and can resist impact and vibration of the die during die matching, and the stability ensures the reliability of the die in high-speed stamping; Fifthly, the cone 16 not only plays a positioning role, but also has a further fixing effect on the strip 11, the cone 16 finally enters the middle of the positioning plate 22, the positioning plate 22 fixes the part of the strip 11 which is not subjected to stamping, the cone 16 enters the reserved round hole of the strip 11 for positioning, and the positioning plate 22 assists the strip 11 to be not displaced.

[0036] After the upper die plate 4 and the lower die plate 3 completely match, the adjusting rod 20 is inserted into the insertion slot 21, and the insertion slot 21 is matched with the side reset spring 19 of the insertion knife 18, so that the insertion knife 18 completes the stamping of the strip 11 once, and the structure design is the adjustment structure of the insertion knife 18; during die working, the adjusting rod 20 is positioned through the insertion slot 21. The front end of the adjusting rod 20 is from thin to thick, the insertion depth determines the pressure of the insertion knife 18, so as to ensure that the position of the strip 11 after stamping does not change, the reset spring 19 can compensate the angle of forming springback, and protect the consistency of the contact points; the adjustable structure ensures the product capacity and quality requirements.

[0037] In the stamping die, the movable support block 12 is installed below the strip 11 which is stamped. The support block 12 not only provides stable support for the strip 11 during stamping to prevent the strip from sagging and deforming due to gravity or stamping force. This support is particularly important for thin sheet materials, which can ensure that the strip remains flat during stamping, and the movable support block 12 can dynamically adjust the height to maintain close contact with the strip 11, ensuring the position accuracy of the strip 11 during feeding. This is particularly important for continuous dies and multi-station dies, which can ensure the positioning accuracy between processes; the support block 12 can also act as a buffer during stamping to absorb the impact force generated when the punch contacts the strip, reducing the vibration of the die and press; finally, after stamping is completed, if the strip 11 is tightly attached to the surface of the concave die, the friction will be very large, and the next feeding will not be able to proceed. The support block 12 can lift the entire strip 11 upwards to separate it from the surface of the concave die, improving the efficiency of demolding.

[0038] In the stamping die, the second die spring 15 and the first die spring 13 are respectively arranged between the upper die holder 6 and the upper die plate 4, the lower die holder 2 and the lower die plate 3.

[0039] Before the cutting knife 18 contacts and punches the material, the stripper plate 5 driven by the second die spring 15 needs to press the material first. This prevents the material from sliding and ensures that the material does not move during stamping, ensuring dimensional accuracy, and pressing the material can make the cutting section smoother and more flat, reducing burrs and deformation.

[0040] After stamping is completed, the second die spring 15 cooperates with the stripper plate 5 to peel off the waste material or workpiece that may be attached to the upper die plate 4 during the return stroke of the upper die, avoiding material carry-over. If there is not enough stripper force, the waste material will rise with the punch, causing interference during the next feeding and damaging the die. This ensures continuous production.

[0041] The first die spring 13 provides a spring force to automatically separate the cutting knife 18 from the material after the cutting knife 18 completes the cutting and shearing, indirectly improving the strength of the lower die plate 3, absorbing vibrations, and buffering the impact force borne by the lower die plate 3 to protect the die base structure.

[0042] The resulting waste material is discharged from the discharge port 7.

[0043] The above description is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent substitutions or changes within the technical scope disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-precision molded die for a plug-in connector, comprising a base (1), characterized in that, The top end of the base (1) is fixedly provided with a lower die base (2), the upper side of the lower die base (2) is provided with a lower die plate (3), the upper side of the lower die plate (3) is provided with an upper die plate (4), the upper side of the upper die plate (4) is provided with a discharge plate (5), the upper side of the discharge plate (5) is provided with an upper die base (6), and the upper die base (6) and the lower die base (2) are provided with an extension mechanism. The upper end surface of the lower die plate (3) is provided with a material strip (11) on one side, and a positioning pressing plate (22) is fixedly arranged on the other side; the lower end of the upper die base (6) is fixedly connected with a plurality of positioning pins (14); the upper die plate (4) and the lower die plate (3) are both provided with positioning holes corresponding in position and number to the positioning pins (14); and the lower end surface of the upper die plate (4) is fixedly provided with a plurality of conical bodies (16), and the conical bodies (16) are aligned with the holes in the positioning pressing plate (22). The lower die plate (3) and the lower die base (2) are provided with a first buffering mechanism, and the upper die base (6) and the upper die plate (4) are provided with a second buffering mechanism.

2. The high-precision plug-in connector molding die according to claim 1, wherein The extension mechanism comprises a hydraulic device (8) fixedly arranged at the top corners of the lower die base (2), the hydraulic device (8) is internally provided with a sleeve (9), and the lower end of the upper die base (6) is fixedly provided with a hydraulic rod (10) at the four corners.

3. The high-precision plug-in connector molding die according to claim 1, wherein The lower end of the conical body (16) is designed in a conical surface, so as to improve the positioning accuracy.

4. The high-precision plug-in connector molding die according to claim 1, wherein The lower die plate (3) is internally provided with a plurality of movable supporting blocks (12), and the supporting blocks (12) are located below the stamping position of the material strip (11).

5. The high-precision plug-in connector molding die according to claim 1, wherein The material punching mechanism comprises a plurality of connecting rods (17) fixedly connected to the lower end of the upper die base (6), two connecting rods (17) form a group, the lower end of the connecting rod (17) in the group is movably provided with a punch (18), the punch (18) movably penetrates through the upper die plate (4) and the discharge plate (5), the top end of the punch (18) and the upper die base (6) are provided with an adjusting assembly, and the side surface of the punch (18) is provided with a reset assembly.

6. The high-precision plug-in connector molding die according to claim 5, wherein The adjusting assembly comprises an insertion slot (21) formed between the top end of the punch (18) and the lower end of the upper die base (6), the insertion slot (21) is movably inserted with an adjusting rod (20), and the front end of the adjusting rod (20) is designed in a wedge shape.

7. The high-precision plug-in connector molding die according to claim 5, wherein The reset assembly comprises a reset spring (19) mounted on the side surface of the punch (18), and the lower end of the reset spring (19) is fixedly connected with the upper end surface of the upper die plate (4).

8. The high-precision plug-in connector molding die according to claim 1, wherein The first buffering mechanism comprises a plurality of first die springs (13) elastically connected between the lower die plate (3) and the lower die base (2), and the first die springs (13) are used to provide elastic force to automatically separate the punch (18) from the material after the punch (18) finishes punching and shearing.

9. The high-precision plug-in connector molding die according to claim 1, wherein The second buffer mechanism comprises a plurality of second die springs (15) elastically connected between the upper die holder (6) and the upper die plate (4), the stripper plate (5) is provided with through grooves for the second die springs (15) to pass through, and a section of the second die spring (15) inside the through groove is fixedly connected with the inner wall of the through groove.

10. The high-precision plug-in connector molding die according to claim 1, wherein The lower die holder (2) is provided with a discharge port (7) on one side of the upper end, and the discharge port (7) is used for discharging the punching material.

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