Connector terminal punch forming device

Abstract

The utility model discloses a connector terminal punch forming device which comprises a machining table and a forming machine body, the machining table is arranged in the forming machine body, the top of the machining table is connected with a die holder, the top of the die holder is connected with a lower die, the top of the lower die is connected with an upper die, and the upper die is connected with a lower die. The upper die is fixedly connected with the movable end of a hydraulic cylinder of the forming machine body, metal sheets can be lifted, the situation that the metal sheets fall seriously and completely due to long-time feeding is avoided, the distance between the limiting rings can be flexibly adjusted according to the width of the metal sheets, and the metal terminals with different widths can be limited in the discharging process; according to the invention, mutual staggering and winding in the forming and discharging process of a plurality of groups of metal sheets can be avoided, the sheet-shaped metal terminals can be buffered, and the situation that the metal terminals are broken due to vibration generated by punch forming is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment for hardware parts. Specifically, it relates to a stamping and forming device for connector terminals. Background Technique

[0002] A connection terminal is a kind of accessory product used to achieve electrical connection. In industry, it is classified into the category of connectors. With the increasing degree of industrial automation and the increasingly strict and precise requirements of industrial control, the usage of wiring terminals is gradually increasing. With the development of the electronics industry, the application scope of wiring terminals is becoming more and more extensive, and the types are also increasing. In addition to PCB board terminals, the most widely used ones also include hardware terminals, nut terminals, spring terminals, etc. Connection terminals are often formed by die stamping.

[0003] In the prior art, the application number 202320704867.X discloses a connection terminal stamping and forming device, which includes a feeding mechanism, a forming mechanism and a collecting mechanism. The feeding mechanism is used for the transmission of the strip. The forming mechanism is arranged on one side of the feeding mechanism and is used for the forming of the connection terminal. The collecting mechanism is arranged on the side of the forming mechanism away from the feeding mechanism and is used for the recovery of waste materials and the collection of the connection terminals after blanking. The forming mechanism includes a die holder assembly, a die core assembly and a transmission assembly. The die holder assembly is arranged on the transmission assembly. The die core assembly is arranged in the die holder assembly and is used for the forming of the connection terminal. The transmission assembly is used for the transmission of the connection terminals after blanking; in the above device, the metal sheet is directly fed, and the formed connection terminals are directly wound and recovered, which will cause the metal sheet to droop severely as the number of winding turns decreases, resulting in the bending of the metal sheet. Moreover, the wound and recovered connection terminals will also drop and become intertwined during discharging due to the simultaneous stamping of multiple groups of metal sheets, affecting the winding of the metal sheet.

[0004] In view of the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0005] In view of the problems in the related technology, the utility model proposes a stamping and forming device for connector terminals to overcome the above-mentioned technical problems existing in the prior related technology.

[0006] Therefore, the specific technical solution adopted by the utility model is as follows:

[0007] A connector terminal stamping and forming device, comprising a processing table and a main body of a forming machine. The processing table is arranged inside the main body of the forming machine. A die base is connected to the top of the processing table. A lower die is connected to the top of the die base. An upper die is connected to the top of the lower die. The upper die is fixedly connected to the movable end of a hydraulic cylinder of the main body of the forming machine. A buffer frame is fixedly connected to the right side of the processing table. A guiding frame is connected to the top of the buffer frame. A first roller is connected to the lower part of the inner wall of the guiding frame through a bearing. A limiting rod is arranged on the right side of the first roller.

[0008] Preferably, the die base is specifically an L-shaped plate structure. An installation opening is penetrated through the bottom of the inner wall of the die base. The installation opening penetrates the front side of the die base, and limiting plates are fixedly connected at equal intervals on the rear side of the inner wall. A positioning plate is connected between the limiting plates. The positioning plate is arranged at equal intervals from the bottom of the lower die.

[0009] Preferably, threaded holes are symmetrically penetrated through the right side of the die base, the positioning plate, and the right side of the limiting plate. A positioning screw is connected inside the threaded hole. The threaded holes on the right side of the die base are threadedly connected to the threaded holes inside the positioning plate and the limiting plate respectively through the positioning screw.

[0010] Preferably, a notch is dug on the left side of the top of the die base. A second roller is fixedly connected between the inner walls of the notch. The top side of the second roller is flush with the top side of the die base and is flush with the die cavity on the top of the lower die.

[0011] Preferably, connection through holes are penetrated through both sides of the limiting rod. An adjusting screw is fixedly connected between the inner walls of the connection through holes. Limiting nuts are threadedly sleeved on the outer wall of the adjusting screw at equal intervals.

[0012] Preferably, limiting rings are sleeved on the outer wall of the limiting rod at equal intervals. A sliding bar is fixedly connected between the limiting rings. The sliding bar is slidably connected to the inner wall of the connection through hole and is movably sleeved on the outer wall of the adjusting screw. The limiting nuts are respectively located on both sides of the sliding bar.

[0013] Preferably, the buffer frame includes a first connecting plate and a second connecting plate. The first connecting plate is arranged in front of the second connecting plate and is fixedly connected to the right side of the processing table. Movable bent plates are connected to the inner sides of the first connecting plate and the second connecting plate. An adjusting shaft is fixedly penetrated and fixed on the left side between the movable bent plates.

[0014] Preferably, rubber rollers are arranged at equal intervals below the right side between the movable bent plates. The rubber rollers are arranged in a staggered manner up and down. Both ends of the adjusting shaft are connected to the inner sides of the first connecting plate and the second connecting plate through bearings. A servo motor is fixedly connected to the outer side of the first connecting plate. The output shaft of the servo motor is fixedly connected to the rear end of the adjusting shaft.

[0015] The beneficial effects of the present utility model are as follows: It is convenient to disassemble the lower die. Under the action of the first idler roller, the metal sheet can be lifted to avoid the situation of complete sagging due to severe sagging of the metal sheet during long-term feeding. The distance between the limit rings can be flexibly adjusted according to the width of the metal sheet, which is suitable for limiting different widths of metal terminals during the discharging process, and avoids the situation of interlacing and entanglement during the forming and discharging of multiple groups of metal sheets. Under the action of the rubber roller, the sheet-shaped metal terminals can be buffered to avoid the fracture of the metal terminals caused by the vibration generated during stamping. According to the installation degree of the winding mechanism, the output orientation height of the metal terminals can be flexibly adjusted, and the output metal terminals can be lifted again to avoid the situation of severe bending of the output metal terminals due to gravity sagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the overall structural schematic diagram of a connector terminal stamping and forming device according to an embodiment of the present utility model;

[0018] Figure 2 is the external structural schematic diagram of the die holder of a connector terminal stamping and forming device according to an embodiment of the present utility model;

[0019] Figure 3 is the split structural schematic diagram of the limiting rod of a connector terminal stamping and forming device according to an embodiment of the present utility model;

[0020] Figure 4 is the external structural schematic diagram of the guiding frame of a connector terminal stamping and forming device according to an embodiment of the present utility model.

[0021] In the figure:

[0022] 1, processing table; 2, main body of the forming machine; 3, die holder; 4, lower die; 5, upper die; 6, buffer frame; 7, guiding frame; 8, first idler roller; 9, limiting rod; 10, installation opening; 11, limiting plate; 12, positioning plate; 13, threaded hole; 14, positioning screw; 15, notch; 16, second idler roller; 17, connecting through hole; 18, adjusting screw; 19, limiting nut; 20, limiting ring; 21, sliding strip; 22, first connecting plate; 23, second connecting plate; 24, movable bending plate; 25, adjusting shaft; 26, rubber roller; 27, servo motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To further illustrate each embodiment, the present utility model provides accompanying drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can cooperate with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present utility model, a stamping and forming device for connector terminals is provided.

[0025] Embodiment 1

[0026] As Figures 1-4 shown, a stamping and forming device for connector terminals according to an embodiment of the present utility model includes a processing table 1 and a forming machine main body 2. The processing table 1 is arranged inside the forming machine main body 2. A die base 3 is connected to the top of the processing table 1. A lower die 4 is connected to the top of the die base 3. An upper die 5 is connected to the top of the lower die 4. The upper die 5 is fixedly connected to the movable end of the hydraulic cylinder of the forming machine main body 2. A buffer frame 6 is fixedly connected to the right side of the processing table 1. A guiding frame 7 is connected to the top of the buffer frame 6. A first roller 8 is connected to the lower part of the inner wall of the guiding frame 7 through a bearing. A limiting rod 9 is arranged on the right side of the first roller 8. The die base 3 is specifically an L-shaped plate structure. An installation opening 10 is penetrated through the bottom of the inner wall of the die base 3, and the installation opening 10 penetrates the front side of the die base 3. And a limiting plate 11 is fixedly connected at equal intervals on the rear side of the inner wall. A positioning plate 12 is connected between the limiting plates 11. The positioning plate 12 is arranged at equal intervals from the bottom of the lower die 4. Threaded holes 13 are symmetrically penetrated through the right side of the die base 3, the right side of the positioning plate 12, and the right side of the limiting plate 11. A positioning screw 14 is connected inside the threaded hole 13. The threaded hole 13 on the right side of the die base 3 is threadedly connected with the threaded holes inside the positioning plate 12 and the limiting plate 11 respectively through the positioning screw 14. A notch 15 is dug on the left side of the top of the die base 3. A second roller 16 is fixedly connected between the inner walls of the notch 15. The top side of the second roller 16 is flush with the top side of the die base 3 and is flush with the die cavity on the top of the lower die 4. When the die cavity of the lower die 4 is worn due to stamping and forming, the positioning screw 14 can be screwed to remove the positioning screw 14 from the threaded holes 13 inside the right side of the die base 3, the positioning plate 12, and the limiting plate 11 in sequence, so that the positioning plate 12 at the bottom of the lower die 4 can be separated from between the limiting plates 11, which is convenient for disassembling the lower die 4. At the same time, when assembling the lower die 4, the positioning plate 12 at its bottom is fitted between the limiting plates 11, which improves the installation accuracy of the lower die 4. During the feeding process, the metal sheet can be lapped on the first roller 8 and then fed into the lower die 4 for stamping and forming. Under the action of the first roller 8, the metal sheet can be lifted to prevent the situation of complete drop of the metal sheet due to serious downward drop during long-term feeding.

[0027] Embodiment 2

[0028] As Figures 1-4 shown, a stamping and forming device for a connector terminal according to an embodiment of the present utility model includes a processing table 1 and a forming machine main body 2. The processing table 1 is arranged inside the forming machine main body 2. A die holder 3 is connected to the top of the processing table 1. A lower die 4 is connected to the top of the die holder 3. An upper die 5 is connected to the top of the lower die 4. The upper die 5 is fixedly connected to the movable end of the hydraulic cylinder of the forming machine main body 2. A buffer frame 6 is fixedly connected to the right side of the processing table 1. A guiding frame 7 is connected to the top of the buffer frame 6. A first roller 8 is connected to the lower part of the inner wall of the guiding frame 7 through a bearing. A limiting rod 9 is arranged on the right side of the first roller 8. Connecting ports 17 are provided through both sides of the limiting rod 9. An adjusting screw 18 is fixedly connected between the inner walls of the connecting ports 17. Limiting nuts 19 are equidistantly sleeved on the outer wall of the adjusting screw 18. Limiting rings 20 are equidistantly sleeved on the outer wall of the limiting rod 9. A sliding bar 21 is fixedly connected between the limiting rings 20. The sliding bar 21 is slidably connected to the inner wall of the connecting port 17 and is movably sleeved on the outer wall of the adjusting screw 18. The limiting nuts 19 are respectively located on both sides of the sliding bar 21. When the metal sheet is stamped and formed and discharged from the right side of the lower die 4, it is supported by the first roller 8 and conveyed between the limiting rings 20 on the outer wall of the limiting rod 9, avoiding the situation of mutual intersection and entanglement during the forming and discharging process of multiple groups of metal sheets. According to the width of the metal sheet, the limiting rings 20 can be respectively pushed, so that the sliding bar 21 inside the limiting ring 20 slides in the connecting port 17 inside the limiting rod 9 and is sleeved on the outer wall of the adjusting screw 18. Then, after the distance between the limiting rings 20 is adjusted, the limiting nuts 19 can be respectively screwed to clamp and fix the sliding bar 21, and the distance between the limiting rings 20 can be flexibly adjusted according to the width of the metal sheet, which is suitable for limiting different widths of metal terminals during the discharging process.

[0029] Embodiment 3

[0030] As Figures 1-4As shown in the figure, a stamping and forming device for a connector terminal according to an embodiment of the present invention includes a processing table 1 and a forming machine main body 2. The processing table 1 is arranged inside the forming machine main body 2. A die base 3 is connected to the top of the processing table 1, a lower die 4 is connected to the top of the die base 3, an upper die 5 is connected to the top of the lower die 4, and the upper die 5 is fixedly connected to the movable end of the hydraulic cylinder of the forming machine main body 2. A buffer frame 6 is fixedly connected to the right side of the processing table 1. A guiding frame 7 is connected to the top of the buffer frame 6. A first roller 8 is connected to the lower part of the inner wall of the guiding frame 7 through a bearing. A limiting rod 9 is arranged on the right side of the first roller 8. The buffer frame 6 includes a first connecting plate 22 and a second connecting plate 23. The first connecting plate 22 is arranged in front of the second connecting plate 23 and is fixedly connected to the right side of the processing table 1. Movable bent plates 24 are connected to the inner sides of the first connecting plate 22 and the second connecting plate 23. An adjusting shaft 25 is fixedly arranged through the left side between the movable bent plates 24. Rubber rollers 26 are equidistantly arranged below the right side between the movable bent plates 24. The rubber rollers 26 are arranged in an upper and lower staggered manner. Both ends of the adjusting shaft 25 are connected to the inner sides of the first connecting plate 22 and the second connecting plate 23 through bearings. A servo motor 27 is fixedly connected to the outer side of the first connecting plate 22. The output shaft of the servo motor 27 is fixedly connected to the rear end of the adjusting shaft 25. When the forming machine main body 2 drives the upper die 5 to stamp and form the metal sheet in the lower die 4 at a high frequency, it will cause the formed metal terminals to shake and vibrate violently during the process of discharging and winding. The formed metal terminals will be conveyed between the rubber rollers 26 arranged up and down. Under the action of the rubber rollers 26, the sheet-shaped metal terminals can be buffered to avoid the situation of metal terminal fracture caused by the vibration generated by stamping and forming. And by starting the servo motor 27, the output shaft of the servo motor 27 drives the adjusting shaft 25 to rotate, so that the adjusting shaft 25 drives the movable bent plates 24 to make a pitching adjustment between the first connecting plate 22 and the second connecting plate 23. According to the installation degree of the winding mechanism, the orientation height of the output of the metal terminals can be flexibly adjusted, and the output metal terminals can be lifted again to avoid the situation that the output metal terminals are severely bent due to gravity drop.

[0031] In summary, by means of the above technical solution of the present utility model, when this device is in use and the mold cavity of the lower mold 4 is worn due to stamping forming, the positioning screw 14 can be screwed to disassemble the positioning screw 14 from the threaded holes 13 inside the right side of the mold base 3, the positioning plate 12, and the limiting plate 11 in sequence, so that the positioning plate 12 at the bottom of the lower mold 4 is separated from the limiting plate 11, facilitating the disassembly of the lower mold 4. At the same time, when assembling the lower mold 4, the positioning plate 12 at its bottom can be fitted between the limiting plates 11, enabling the metal sheet to overlap on the first idler roller 8 and then be fed into the lower mold 4 for stamping forming. When the metal sheet is discharged from the right side of the lower mold 4 after stamping forming, it is supported by the first idler roller 8 and conveyed between the limiting rings 20 on the outer wall of the limiting rod 9, avoiding the situation of mutual intersection and entanglement during the discharging and coiling of multiple groups of metal sheets. According to the width of the metal sheet, the limiting rings 20 can be respectively pushed, so that the sliding strips 21 inside the limiting rings 20 slide in the connecting ports 17 inside the limiting rod 9 and are sleeved on the outer wall of the adjusting screw 18. Then, after the distance between the limiting rings 20 is adjusted, the limiting nuts 19 can be respectively screwed to clamp and fix the sliding strips 21, and the distance between the limiting rings 20 can be flexibly adjusted according to the width of the metal sheet. When the main body 2 of the forming machine drives the upper mold 5 to stamp and form the metal sheet in the lower mold 4 at a high frequency, it will cause the formed metal terminals to shake and vibrate violently during the discharging and coiling process. The formed metal terminals are conveyed between the rubber rollers 26 arranged up and down. Under the action of the rubber rollers 26, the sheet-shaped metal terminals can be buffered to avoid the situation of metal terminal fracture caused by the vibration generated during stamping forming. And by starting the servo motor 27, the output shaft of the servo motor 27 drives the adjusting shaft 25 to rotate, so that the adjusting shaft 25 drives the movable bending plate 24 to make a pitching adjustment between the first connecting plate 22 and the second connecting plate 23, and the orientation height of the metal terminal output can be flexibly adjusted according to the installation degree of the coiling mechanism.

[0032] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connector terminal stamping and forming device, comprising a processing table (1) and a forming machine body (2), characterized in that: The processing table (1) is arranged inside the molding machine body (2); the top of the processing table (1) is connected to a mold base (3); the top of the mold base (3) is connected to a lower mold (4); the top of the lower mold (4) is connected to an upper mold (5); the upper mold (5) is fixedly connected to the movable end of the hydraulic cylinder of the molding machine body (2); the right side of the processing table (1) is fixedly connected to a buffer frame (6); the top of the buffer frame (6) is connected to a guide frame (7); the lower part of the inner wall of the guide frame (7) is connected to a first roller (8) through a bearing; a limit rod (9) is provided on the right side of the first roller (8).

2. A connector terminal stamping and forming device according to claim 1, characterized in that: The mold base (3) is specifically an L-shaped plate structure, and a mounting opening (10) is provided through the bottom of the inner wall of the mold base (3), and the mounting opening (10) passes through the front side of the mold base (3), and the rear side of the inner wall is equidistantly fixedly connected to a limiting plate (11), and the limiting plates (11) are connected between the limiting plates (11), and the positioning plates (12) are arranged equidistantly from the bottom of the lower mold (4).

3. A connector terminal stamping and forming device according to claim 2, characterized in that: The right side of the mold base (3), the positioning plate (12), and the right side of the limiting plate (11) are all symmetrically provided with threaded holes (13), and the threaded holes (13) are connected to the inside of the threaded holes (13). The threaded holes (13) on the right side of the mold base (3) are threadedly connected to the threaded holes in the positioning plate (12) and the limiting plate (11) through the positioning screw (14).

4. A connector terminal stamping and forming device according to claim 3, characterized in that: A notch (15) is excavated on the left side of the top of the mold base (3), and a second roller (16) is fixedly connected between the inner walls of the notch (15), and the top side of the second roller (16) is flush with the top side of the mold base (3) and is flush with the mold cavity at the top of the lower mold (4).

5. A connector terminal stamping and forming device according to claim 4, characterized in that: The limiting rod (9) is provided with connecting openings (17) on both sides thereof, an adjusting screw (18) is fixedly connected between the inner walls of the connecting opening (17), and a limiting nut (19) is equidistantly threadedly sleeved on the outer wall of the adjusting screw (18).

6. A connector terminal stamping and forming device according to claim 5, characterized in that: Limiting rings (20) are sleeved equidistantly on the outer wall of the limiting rod (9), and sliding bars (21) are fixedly connected between the limiting rings (20). The sliding bars (21) are slidably connected to the inner wall of the connecting opening (17) and movably sleeved to the outer wall of the adjusting screw (18), and the limiting nuts (19) are respectively located on both sides of the sliding bars (21).

7. A connector terminal stamping and forming device according to claim 6, characterized in that: The buffer frame (6) comprises a first connecting plate (22) and a second connecting plate (23); the first connecting plate (22) is arranged in front of the second connecting plate (23) and is fixedly connected to the right side of the processing table (1); the inner sides of the first connecting plate (22) and the second connecting plate (23) are both connected with movable bent plates (24); an adjustment shaft (25) is fixedly passed through the left side between the movable bent plates (24).

8. A connector terminal stamping and forming device according to claim 7, characterized in that: Rubber rollers (26) are equidistantly arranged at the lower right side between the movable bending plates (24), and the rubber rollers (26) are arranged alternately up and down. The two ends of the adjustment shaft (25) are connected to the inner sides of the first connecting plate (22) and the second connecting plate (23) through bearings. A servo motor (27) is fixedly connected to the outer side of the first connecting plate (22), and the output shaft of the servo motor (27) is fixedly connected to the rear end of the adjustment shaft (25).

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